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Ralf S. Engelschall 已提交
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 OpenSSL CHANGES
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5
 Changes between 1.0.0 and 1.1.0  [xx XXX xxxx]
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  *) Add an "external" session cache for debugging purposes to s_server. This
     should help trace issues which normally are only apparent in deployed
     multi-process servers.
     [Steve Henson]

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  *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
     a few changes are required:

       Add SSL_OP_NO_TLSv1_1 flag.
       Add TLSv1_1 methods.
       Update version checking logic to handle version 1.1.
       Add explicit IV handling (ported from DTLS code).
       Add command line options to s_client/s_server.
     [Steve Henson]

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  *) Experiemental password based recipient info support for CMS library:
     implementing RFC3211.
     [Steve Henson]

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  *) Split password based encryption into PBES2 and PBKDF2 functions. This
     neatly separates the code into cipher and PBE sections and is required
     for some algorithms that split PBES2 into separate pieces (such as
     password based CMS).
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Dr. Stephen Henson 已提交
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     [Steve Henson]

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  *) Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where
     return value is ignored. NB. The functions RAND_add(), RAND_seed(),
     BIO_set_cipher() and some obscure PEM functions were changed so they
     can now return an error. The RAND changes required a change to the
     RAND_METHOD structure.
     [Steve Henson]

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  *) New macro __owur for "OpenSSL Warn Unused Result". This makes use of
     a gcc attribute to warn if the result of a function is ignored. This
     is enable if DEBUG_UNUSED is set. Add to several functions in evp.h
     whose return value is often ignored. 
     [Steve Henson]

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 Changes between 0.9.8m (?) and 1.0.0  [xx XXX xxxx]
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D
Dr. Stephen Henson 已提交
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  *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
     output hashes compatible with older versions of OpenSSL.
     [Willy Weisz <weisz@vcpc.univie.ac.at>]

51 52 53 54 55
  *) Fix compression algorithm handling: if resuming a session use the
     compression algorithm of the resumed session instead of determining
     it from client hello again. Don't allow server to change algorithm.
     [Steve Henson]

B
Bodo Möller 已提交
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  *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
     change when encrypting or decrypting.
     [Bodo Moeller]

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  *) Add load_crls() function to apps tidying load_certs() too. Add option
     to verify utility to allow additional CRLs to be included.
     [Steve Henson]

  *) Update OCSP request code to permit adding custom headers to the request:
     some responders need this.
     [Steve Henson]

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  *) The function EVP_PKEY_sign() returns <=0 on error: check return code
     correctly.
     [Julia Lawall <julia@diku.dk>]

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  *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
     needlessly dereferenced structures, used obsolete functions and
     didn't handle all updated verify codes correctly.
     [Steve Henson]

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  *) Disable MD2 in the default configuration.
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Dr. Stephen Henson 已提交
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     [Steve Henson]

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Dr. Stephen Henson 已提交
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  *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
     indicate the initial BIO being pushed or popped. This makes it possible
     to determine whether the BIO is the one explicitly called or as a result
     of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
     it handles reference counts correctly and doesn't zero out the I/O bio
     when it is not being explicitly popped. WARNING: applications which
     included workarounds for the old buggy behaviour will need to be modified
     or they could free up already freed BIOs.
     [Steve Henson]

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  *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
     renaming to all platforms (within the 0.9.8 branch, this was
     done conditionally on Netware platforms to avoid a name clash).
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     [Guenter <lists@gknw.net>]

D
Dr. Stephen Henson 已提交
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  *) Add ECDHE and PSK support to DTLS.
     [Michael Tuexen <tuexen@fh-muenster.de>]

D
Dr. Stephen Henson 已提交
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  *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
     be used on C++.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
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  *) Add "missing" function EVP_MD_flags() (without this the only way to
     retrieve a digest flags is by accessing the structure directly. Update
     EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
     or cipher is registered as in the "from" argument. Print out all
     registered digests in the dgst usage message instead of manually 
     attempting to work them out.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
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  *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
     this allows the use of compression and extensions. Change default cipher
     string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
     by default unless an application cipher string requests it.
     [Steve Henson]

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  *) Alter match criteria in PKCS12_parse(). It used to try to use local
     key ids to find matching certificates and keys but some PKCS#12 files
     don't follow the (somewhat unwritten) rules and this strategy fails.
     Now just gather all certificates together and the first private key
     then look for the first certificate that matches the key.
     [Steve Henson]

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  *) Support use of registered digest and cipher names for dgst and cipher
     commands instead of having to add each one as a special case. So now
     you can do:

        openssl sha256 foo

     as well as:

        openssl dgst -sha256 foo

     and this works for ENGINE based algorithms too.

     [Steve Henson]
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  *) Update Gost ENGINE to support parameter files.
     [Victor B. Wagner <vitus@cryptocom.ru>]

D
Dr. Stephen Henson 已提交
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  *) Support GeneralizedTime in ca utility. 
     [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]

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  *) Enhance the hash format used for certificate directory links. The new
     form uses the canonical encoding (meaning equivalent names will work
     even if they aren't identical) and uses SHA1 instead of MD5. This form
     is incompatible with the older format and as a result c_rehash should
     be used to rebuild symbolic links.
     [Steve Henson]

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  *) Make PKCS#8 the default write format for private keys, replacing the
     traditional format. This form is standardised, more secure and doesn't
     include an implicit MD5 dependency.
     [Steve Henson]

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  *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
     committed to OpenSSL should pass this lot as a minimum.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
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  *) Add session ticket override functionality for use by EAP-FAST.
     [Jouni Malinen <j@w1.fi>]

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  *) Modify HMAC functions to return a value. Since these can be implemented
     in an ENGINE errors can occur.
     [Steve Henson]

B
Ben Laurie 已提交
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  *) Type-checked OBJ_bsearch_ex.
     [Ben Laurie]

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  *) Type-checked OBJ_bsearch. Also some constification necessitated
     by type-checking.  Still to come: TXT_DB, bsearch(?),
     OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
B
Ben Laurie 已提交
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     CONF_VALUE.
     [Ben Laurie]
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  *) New function OPENSSL_gmtime_adj() to add a specific number of days and
     seconds to a tm structure directly, instead of going through OS
     specific date routines. This avoids any issues with OS routines such
     as the year 2038 bug. New *_adj() functions for ASN1 time structures
     and X509_time_adj_ex() to cover the extended range. The existing
     X509_time_adj() is still usable and will no longer have any date issues.
     [Steve Henson]

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  *) Delta CRL support. New use deltas option which will attempt to locate
     and search any appropriate delta CRLs available.

     This work was sponsored by Google.
     [Steve Henson]

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  *) Support for CRLs partitioned by reason code. Reorganise CRL processing
     code and add additional score elements. Validate alternate CRL paths
     as part of the CRL checking and indicate a new error "CRL path validation
     error" in this case. Applications wanting additional details can use
     the verify callback and check the new "parent" field. If this is not
     NULL CRL path validation is taking place. Existing applications wont
     see this because it requires extended CRL support which is off by
     default.

     This work was sponsored by Google.
     [Steve Henson]

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  *) Support for freshest CRL extension.

     This work was sponsored by Google.
     [Steve Henson]

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  *) Initial indirect CRL support. Currently only supported in the CRLs
     passed directly and not via lookup. Process certificate issuer
     CRL entry extension and lookup CRL entries by bother issuer name
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     and serial number. Check and process CRL issuer entry in IDP extension.
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     This work was sponsored by Google.
     [Steve Henson]

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  *) Add support for distinct certificate and CRL paths. The CRL issuer
     certificate is validated separately in this case. Only enabled if
     an extended CRL support flag is set: this flag will enable additional
     CRL functionality in future.

     This work was sponsored by Google.
     [Steve Henson]

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  *) Add support for policy mappings extension.

     This work was sponsored by Google.
     [Steve Henson]

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  *) Fixes to pathlength constraint, self issued certificate handling,
     policy processing to align with RFC3280 and PKITS tests.

     This work was sponsored by Google.
     [Steve Henson]

  *) Support for name constraints certificate extension. DN, email, DNS
     and URI types are currently supported.

     This work was sponsored by Google.
     [Steve Henson]

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  *) To cater for systems that provide a pointer-based thread ID rather
     than numeric, deprecate the current numeric thread ID mechanism and
     replace it with a structure and associated callback type. This
     mechanism allows a numeric "hash" to be extracted from a thread ID in
     either case, and on platforms where pointers are larger than 'long',
     mixing is done to help ensure the numeric 'hash' is usable even if it
     can't be guaranteed unique. The default mechanism is to use "&errno"
     as a pointer-based thread ID to distinguish between threads.

     Applications that want to provide their own thread IDs should now use
     CRYPTO_THREADID_set_callback() to register a callback that will call
     either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().

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     Note that ERR_remove_state() is now deprecated, because it is tied
     to the assumption that thread IDs are numeric.  ERR_remove_state(0)
     to free the current thread's error state should be replaced by
     ERR_remove_thread_state(NULL).

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     (This new approach replaces the functions CRYPTO_set_idptr_callback(),
     CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
     OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
     application was previously providing a numeric thread callback that
     was inappropriate for distinguishing threads, then uniqueness might
     have been obtained with &errno that happened immediately in the
     intermediate development versions of OpenSSL; this is no longer the
     case, the numeric thread callback will now override the automatic use
     of &errno.)
     [Geoff Thorpe, with help from Bodo Moeller]

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  *) Initial support for different CRL issuing certificates. This covers a
     simple case where the self issued certificates in the chain exist and
     the real CRL issuer is higher in the existing chain.
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     This work was sponsored by Google.
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     [Steve Henson]

B
Ben Laurie 已提交
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  *) Removed effectively defunct crypto/store from the build.
     [Ben Laurie]

  *) Revamp of STACK to provide stronger type-checking. Still to come:
     TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
     ASN1_STRING, CONF_VALUE.
     [Ben Laurie]

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Ben Laurie 已提交
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  *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
     RAM on SSL connections.  This option can save about 34k per idle SSL.
     [Nick Mathewson]

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Ben Laurie 已提交
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  *) Revamp of LHASH to provide stronger type-checking. Still to come:
     STACK, TXT_DB, bsearch, qsort.
     [Ben Laurie]

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Dr. Stephen Henson 已提交
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  *) Initial support for Cryptographic Message Syntax (aka CMS) based
     on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
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     support for data, signedData, compressedData, digestedData and
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     encryptedData, envelopedData types included. Scripts to check against
     RFC4134 examples draft and interop and consistency checks of many
     content types and variants.
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Dr. Stephen Henson 已提交
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     [Steve Henson]

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Dr. Stephen Henson 已提交
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  *) Add options to enc utility to support use of zlib compression BIO.
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Dr. Stephen Henson 已提交
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     [Steve Henson]

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  *) Extend mk1mf to support importing of options and assembly language
     files from Configure script, currently only included in VC-WIN32.
     The assembly language rules can now optionally generate the source
     files from the associated perl scripts.
     [Steve Henson]

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  *) Implement remaining functionality needed to support GOST ciphersuites.
     Interop testing has been performed using CryptoPro implementations.
     [Victor B. Wagner <vitus@cryptocom.ru>]

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  *) s390x assembler pack.
     [Andy Polyakov]

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Andy Polyakov 已提交
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  *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
     "family."
     [Andy Polyakov]

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  *) Implement Opaque PRF Input TLS extension as specified in
     draft-rescorla-tls-opaque-prf-input-00.txt.  Since this is not an
     official specification yet and no extension type assignment by
     IANA exists, this extension (for now) will have to be explicitly
     enabled when building OpenSSL by providing the extension number
     to use.  For example, specify an option

         -DTLSEXT_TYPE_opaque_prf_input=0x9527

     to the "config" or "Configure" script to enable the extension,
     assuming extension number 0x9527 (which is a completely arbitrary
     and unofficial assignment based on the MD5 hash of the Internet
     Draft).  Note that by doing so, you potentially lose
     interoperability with other TLS implementations since these might
     be using the same extension number for other purposes.

     SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
     opaque PRF input value to use in the handshake.  This will create
     an interal copy of the length-'len' string at 'src', and will
     return non-zero for success.

     To get more control and flexibility, provide a callback function
     by using

          SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
          SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)

     where

          int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
          void *arg;

     Callback function 'cb' will be called in handshakes, and is
     expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
     Argument 'arg' is for application purposes (the value as given to
     SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
     be provided to the callback function).  The callback function
     has to return non-zero to report success: usually 1 to use opaque
     PRF input just if possible, or 2 to enforce use of the opaque PRF
     input.  In the latter case, the library will abort the handshake
     if opaque PRF input is not successfully negotiated.

     Arguments 'peerinput' and 'len' given to the callback function
     will always be NULL and 0 in the case of a client.  A server will
     see the client's opaque PRF input through these variables if
     available (NULL and 0 otherwise).  Note that if the server
     provides an opaque PRF input, the length must be the same as the
     length of the client's opaque PRF input.

     Note that the callback function will only be called when creating
     a new session (session resumption can resume whatever was
     previously negotiated), and will not be called in SSL 2.0
     handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
     SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
     for applications that need to enforce opaque PRF input.

     [Bodo Moeller]

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  *) Update ssl code to support digests other than SHA1+MD5 for handshake
     MAC. 

     [Victor B. Wagner <vitus@cryptocom.ru>]

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  *) Add RFC4507 support to OpenSSL. This includes the corrections in
     RFC4507bis. The encrypted ticket format is an encrypted encoded
     SSL_SESSION structure, that way new session features are automatically
     supported.

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Dr. Stephen Henson 已提交
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     If a client application caches session in an SSL_SESSION structure
     support is transparent because tickets are now stored in the encoded
     SSL_SESSION.
     
     The SSL_CTX structure automatically generates keys for ticket
     protection in servers so again support should be possible
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     with no application modification.

     If a client or server wishes to disable RFC4507 support then the option
     SSL_OP_NO_TICKET can be set.

     Add a TLS extension debugging callback to allow the contents of any client
     or server extensions to be examined.
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     This work was sponsored by Google.
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     [Steve Henson]

D
Dr. Stephen Henson 已提交
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  *) Final changes to avoid use of pointer pointer casts in OpenSSL.
     OpenSSL should now compile cleanly on gcc 4.2
     [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]

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  *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
     support including streaming MAC support: this is required for GOST
     ciphersuite support.
     [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]

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  *) Add option -stream to use PKCS#7 streaming in smime utility. New
     function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
     to output in BER and PEM format.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
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  *) Experimental support for use of HMAC via EVP_PKEY interface. This
     allows HMAC to be handled via the EVP_DigestSign*() interface. The
     EVP_PKEY "key" in this case is the HMAC key, potentially allowing
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     ENGINE support for HMAC keys which are unextractable. New -mac and
     -macopt options to dgst utility.
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Dr. Stephen Henson 已提交
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     [Steve Henson]

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  *) New option -sigopt to dgst utility. Update dgst to use
     EVP_Digest{Sign,Verify}*. These two changes make it possible to use
     alternative signing paramaters such as X9.31 or PSS in the dgst 
     utility.
     [Steve Henson]

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  *) Change ssl_cipher_apply_rule(), the internal function that does
     the work each time a ciphersuite string requests enabling
     ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
     removing ("!foo+bar") a class of ciphersuites: Now it maintains
     the order of disabled ciphersuites such that those ciphersuites
     that most recently went from enabled to disabled not only stay
     in order with respect to each other, but also have higher priority
     than other disabled ciphersuites the next time ciphersuites are
     enabled again.

     This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
     the same ciphersuites as with "HIGH" alone, but in a specific
     order where the PSK ciphersuites come first (since they are the
     most recently disabled ciphersuites when "HIGH" is parsed).

     Also, change ssl_create_cipher_list() (using this new
     funcionality) such that between otherwise identical
     cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
     the default order.
     [Bodo Moeller]

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  *) Change ssl_create_cipher_list() so that it automatically
     arranges the ciphersuites in reasonable order before starting
     to process the rule string.  Thus, the definition for "DEFAULT"
     (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
     remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
     This makes it much easier to arrive at a reasonable default order
     in applications for which anonymous ciphers are OK (meaning
     that you can't actually use DEFAULT).
     [Bodo Moeller; suggested by Victor Duchovni]

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  *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
     processing) into multiple integers instead of setting
     "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
     "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
     (These masks as well as the individual bit definitions are hidden
     away into the non-exported interface ssl/ssl_locl.h, so this
     change to the definition of the SSL_CIPHER structure shouldn't
     affect applications.)  This give us more bits for each of these
     categories, so there is no longer a need to coagulate AES128 and
     AES256 into a single algorithm bit, and to coagulate Camellia128
     and Camellia256 into a single algorithm bit, which has led to all
     kinds of kludges.

     Thus, among other things, the kludge introduced in 0.9.7m and
     0.9.8e for masking out AES256 independently of AES128 or masking
     out Camellia256 independently of AES256 is not needed here in 0.9.9.

     With the change, we also introduce new ciphersuite aliases that
     so far were missing: "AES128", "AES256", "CAMELLIA128", and
     "CAMELLIA256".
     [Bodo Moeller]

N
Nils Larsch 已提交
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  *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
     Use the leftmost N bytes of the signature input if the input is
     larger than the prime q (with N being the size in bytes of q).
     [Nils Larsch]

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  *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
     it yet and it is largely untested.
     [Steve Henson]

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  *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
     [Nils Larsch]

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  *) Initial incomplete changes to avoid need for function casts in OpenSSL
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     some compilers (gcc 4.2 and later) reject their use. Safestack is
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     reimplemented.  Update ASN1 to avoid use of legacy functions. 
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     [Steve Henson]

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  *) Win32/64 targets are linked with Winsock2.
     [Andy Polyakov]

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  *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
     to external functions. This can be used to increase CRL handling 
     efficiency especially when CRLs are very large by (for example) storing
     the CRL revoked certificates in a database.
     [Steve Henson]

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  *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
     new CRLs added to a directory can be used. New command line option
     -verify_return_error to s_client and s_server. This causes real errors
     to be returned by the verify callback instead of carrying on no matter
     what. This reflects the way a "real world" verify callback would behave.
     [Steve Henson]

  *) GOST engine, supporting several GOST algorithms and public key formats.
     Kindly donated by Cryptocom.
     [Cryptocom]

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  *) Partial support for Issuing Distribution Point CRL extension. CRLs
     partitioned by DP are handled but no indirect CRL or reason partitioning
     (yet). Complete overhaul of CRL handling: now the most suitable CRL is
     selected via a scoring technique which handles IDP and AKID in CRLs.
     [Steve Henson]

  *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
     will ultimately be used for all verify operations: this will remove the
     X509_STORE dependency on certificate verification and allow alternative
     lookup methods.  X509_STORE based implementations of these two callbacks.
     [Steve Henson]

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  *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
     Modify get_crl() to find a valid (unexpired) CRL if possible.
     [Steve Henson]

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  *) New function X509_CRL_match() to check if two CRLs are identical. Normally
     this would be called X509_CRL_cmp() but that name is already used by
     a function that just compares CRL issuer names. Cache several CRL 
     extensions in X509_CRL structure and cache CRLDP in X509.
     [Steve Henson]

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  *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
     this maps equivalent X509_NAME structures into a consistent structure.
     Name comparison can then be performed rapidly using memcmp().
     [Steve Henson]

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  *) Non-blocking OCSP request processing. Add -timeout option to ocsp 
     utility.
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     [Steve Henson]

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  *) Allow digests to supply their own micalg string for S/MIME type using
     the ctrl EVP_MD_CTRL_MICALG.
     [Steve Henson]

  *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
     EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
     ctrl. It can then customise the structure before and/or after signing
     if necessary.
     [Steve Henson]

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  *) New function OBJ_add_sigid() to allow application defined signature OIDs
     to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
     to free up any added signature OIDs.
     [Steve Henson]

567 568 569 570 571 572
  *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
     EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
     digest and cipher tables. New options added to openssl utility:
     list-message-digest-algorithms and list-cipher-algorithms.
     [Steve Henson]

573 574 575 576 577 578 579 580
  *) Change the array representation of binary polynomials: the list
     of degrees of non-zero coefficients is now terminated with -1.
     Previously it was terminated with 0, which was also part of the
     value; thus, the array representation was not applicable to
     polynomials where t^0 has coefficient zero.  This change makes
     the array representation useful in a more general context.
     [Douglas Stebila]

581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613
  *) Various modifications and fixes to SSL/TLS cipher string
     handling.  For ECC, the code now distinguishes between fixed ECDH
     with RSA certificates on the one hand and with ECDSA certificates
     on the other hand, since these are separate ciphersuites.  The
     unused code for Fortezza ciphersuites has been removed.

     For consistency with EDH, ephemeral ECDH is now called "EECDH"
     (not "ECDHE").  For consistency with the code for DH
     certificates, use of ECDH certificates is now considered ECDH
     authentication, not RSA or ECDSA authentication (the latter is
     merely the CA's signing algorithm and not actively used in the
     protocol).

     The temporary ciphersuite alias "ECCdraft" is no longer
     available, and ECC ciphersuites are no longer excluded from "ALL"
     and "DEFAULT".  The following aliases now exist for RFC 4492
     ciphersuites, most of these by analogy with the DH case:

         kECDHr   - ECDH cert, signed with RSA
         kECDHe   - ECDH cert, signed with ECDSA
         kECDH    - ECDH cert (signed with either RSA or ECDSA)
         kEECDH   - ephemeral ECDH
         ECDH     - ECDH cert or ephemeral ECDH

         aECDH    - ECDH cert
         aECDSA   - ECDSA cert
         ECDSA    - ECDSA cert

         AECDH    - anonymous ECDH
         EECDH    - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")

     [Bodo Moeller]

614 615 616 617
  *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
     Use correct micalg parameters depending on digest(s) in signed message.
     [Steve Henson]

618 619 620
  *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
     an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
     [Steve Henson]
621

622
  *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
623 624
     an engine to register a method. Add ENGINE lookups for methods and
     functional reference processing.
625 626
     [Steve Henson]

627 628 629 630 631
  *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
     EVP_{Sign,Verify}* which allow an application to customise the signature
     process.
     [Steve Henson]

632 633 634 635 636
  *) New -resign option to smime utility. This adds one or more signers
     to an existing PKCS#7 signedData structure. Also -md option to use an
     alternative message digest algorithm for signing.
     [Steve Henson]

637 638 639 640 641
  *) Tidy up PKCS#7 routines and add new functions to make it easier to
     create PKCS7 structures containing multiple signers. Update smime
     application to support multiple signers.
     [Steve Henson]

642 643 644 645
  *) New -macalg option to pkcs12 utility to allow setting of an alternative
     digest MAC.
     [Steve Henson]

646
  *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
647
     Reorganize PBE internals to lookup from a static table using NIDs,
648 649 650
     add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
     EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
     PRF which will be automatically used with PBES2.
651 652
     [Steve Henson]

D
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Dr. Stephen Henson 已提交
653
  *) Replace the algorithm specific calls to generate keys in "req" with the
654 655 656
     new API.
     [Steve Henson]

657 658 659 660 661 662
  *) Update PKCS#7 enveloped data routines to use new API. This is now
     supported by any public key method supporting the encrypt operation. A
     ctrl is added to allow the public key algorithm to examine or modify
     the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
     a no op.
     [Steve Henson]
R
Richard Levitte 已提交
663

664 665 666 667 668 669 670 671 672 673
  *) Add a ctrl to asn1 method to allow a public key algorithm to express
     a default digest type to use. In most cases this will be SHA1 but some
     algorithms (such as GOST) need to specify an alternative digest. The
     return value indicates how strong the prefernce is 1 means optional and
     2 is mandatory (that is it is the only supported type). Modify
     ASN1_item_sign() to accept a NULL digest argument to indicate it should
     use the default md. Update openssl utilities to use the default digest
     type for signing if it is not explicitly indicated.
     [Steve Henson]

674 675 676 677 678 679
  *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New 
     EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
     signing method from the key type. This effectively removes the link
     between digests and public key types.
     [Steve Henson]

680 681 682 683 684 685
  *) Add an OID cross reference table and utility functions. Its purpose is to
     translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
     rsaEncryption. This will allow some of the algorithm specific hackery
     needed to use the correct OID to be removed. 
     [Steve Henson]

686 687 688 689 690
  *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
     structures for PKCS7_sign(). They are now set up by the relevant public
     key ASN1 method.
     [Steve Henson]

691 692 693
  *) Add provisional EC pkey method with support for ECDSA and ECDH.
     [Steve Henson]

694 695 696 697
  *) Add support for key derivation (agreement) in the API, DH method and
     pkeyutl.
     [Steve Henson]

698 699 700 701 702 703 704
  *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
     public and private key formats. As a side effect these add additional 
     command line functionality not previously available: DSA signatures can be
     generated and verified using pkeyutl and DH key support and generation in
     pkey, genpkey.
     [Steve Henson]

U
Ulf Möller 已提交
705 706 707 708 709 710 711
  *) BeOS support.
     [Oliver Tappe <zooey@hirschkaefer.de>]

  *) New make target "install_html_docs" installs HTML renditions of the
     manual pages.
     [Oliver Tappe <zooey@hirschkaefer.de>]

D
Dr. Stephen Henson 已提交
712 713 714 715 716 717
  *) New utility "genpkey" this is analagous to "genrsa" etc except it can
     generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
     support key and parameter generation and add initial key generation
     functionality for RSA.
     [Steve Henson]

718 719 720 721 722
  *) Add functions for main EVP_PKEY_method operations. The undocumented
     functions EVP_PKEY_{encrypt,decrypt} have been renamed to
     EVP_PKEY_{encrypt,decrypt}_old. 
     [Steve Henson]

723 724 725 726
  *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
     key API, doesn't do much yet.
     [Steve Henson]

727 728 729 730 731
  *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
     public key algorithms. New option to openssl utility:
     "list-public-key-algorithms" to print out info.
     [Steve Henson]

732 733 734 735
  *) Implement the Supported Elliptic Curves Extension for
     ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
     [Douglas Stebila]

736 737 738 739
  *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
     EVP_CIPHER structures to avoid later problems in EVP_cleanup().
     [Steve Henson]

740
  *) New utilities pkey and pkeyparam. These are similar to algorithm specific
D
Dr. Stephen Henson 已提交
741
     utilities such as rsa, dsa, dsaparam etc except they process any key
742
     type.
743 744
     [Steve Henson]

745 746 747 748 749 750
  *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New 
     functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
     EVP_PKEY_print_param() to print public key data from an EVP_PKEY
     structure.
     [Steve Henson]

751 752 753 754 755 756 757 758
  *) Initial support for pluggable public key ASN1.
     De-spaghettify the public key ASN1 handling. Move public and private
     key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
     algorithm specific handling to a single module within the relevant
     algorithm directory. Add functions to allow (near) opaque processing
     of public and private key structures.
     [Steve Henson]

759 760 761 762
  *) Implement the Supported Point Formats Extension for
     ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
     [Douglas Stebila]

763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778
  *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
     for the psk identity [hint] and the psk callback functions to the
     SSL_SESSION, SSL and SSL_CTX structure.
     
     New ciphersuites:
         PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
         PSK-AES256-CBC-SHA
 
     New functions:
         SSL_CTX_use_psk_identity_hint
         SSL_get_psk_identity_hint
         SSL_get_psk_identity
         SSL_use_psk_identity_hint

     [Mika Kousa and Pasi Eronen of Nokia Corporation]

779 780 781 782
  *) Add RFC 3161 compliant time stamp request creation, response generation
     and response verification functionality.
     [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]

783 784 785 786 787 788 789
  *) Add initial support for TLS extensions, specifically for the server_name
     extension so far.  The SSL_SESSION, SSL_CTX, and SSL data structures now
     have new members for a host name.  The SSL data structure has an
     additional member SSL_CTX *initial_ctx so that new sessions can be
     stored in that context to allow for session resumption, even after the
     SSL has been switched to a new SSL_CTX in reaction to a client's
     server_name extension.
790 791 792 793 794 795 796 797 798 799 800 801 802

     New functions (subject to change):

         SSL_get_servername()
         SSL_get_servername_type()
         SSL_set_SSL_CTX()

     New CTRL codes and macros (subject to change):

         SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
                                 - SSL_CTX_set_tlsext_servername_callback()
         SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
                                      - SSL_CTX_set_tlsext_servername_arg()
N
Nils Larsch 已提交
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         SSL_CTRL_SET_TLSEXT_HOSTNAME           - SSL_set_tlsext_host_name()
B
Bodo Möller 已提交
804

805 806 807 808 809 810 811 812 813
     openssl s_client has a new '-servername ...' option.

     openssl s_server has new options '-servername_host ...', '-cert2 ...',
     '-key2 ...', '-servername_fatal' (subject to change).  This allows
     testing the HostName extension for a specific single host name ('-cert'
     and '-key' remain fallbacks for handshakes without HostName
     negotiation).  If the unrecogninzed_name alert has to be sent, this by
     default is a warning; it becomes fatal with the '-servername_fatal'
     option.
B
Bodo Möller 已提交
814

815
     [Peter Sylvester,  Remy Allais, Christophe Renou]
B
Bodo Möller 已提交
816

817 818 819
  *) Whirlpool hash implementation is added.
     [Andy Polyakov]

820 821 822 823 824 825 826
  *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
     bn(64,32). Because of instruction set limitations it doesn't have
     any negative impact on performance. This was done mostly in order
     to make it possible to share assembler modules, such as bn_mul_mont
     implementations, between 32- and 64-bit builds without hassle.
     [Andy Polyakov]

827 828 829 830 831
  *) Move code previously exiled into file crypto/ec/ec2_smpt.c
     to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
     macro.
     [Bodo Moeller]

832 833 834 835 836 837
  *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
     dedicated Montgomery multiplication procedure, is introduced.
     BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
     "64-bit" performance on certain 32-bit targets.
     [Andy Polyakov]

838 839 840 841 842 843
  *) New option SSL_OP_NO_COMP to disable use of compression selectively
     in SSL structures. New SSL ctrl to set maximum send fragment size. 
     Save memory by seeting the I/O buffer sizes dynamically instead of
     using the maximum available value.
     [Steve Henson]

B
Bodo Möller 已提交
844 845 846 847
  *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
     in addition to the text details.
     [Bodo Moeller]

848 849 850 851 852
  *) Very, very preliminary EXPERIMENTAL support for printing of general
     ASN1 structures. This currently produces rather ugly output and doesn't
     handle several customised structures at all.
     [Steve Henson]

853 854 855 856 857
  *) Integrated support for PVK file format and some related formats such
     as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
     these in the 'rsa' and 'dsa' utilities.
     [Steve Henson]

858 859 860
  *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
     [Steve Henson]

861 862 863
  *) Remove the ancient ASN1_METHOD code. This was only ever used in one
     place for the (very old) "NETSCAPE" format certificates which are now
     handled using new ASN1 code equivalents.
864
     [Steve Henson]
865

866 867 868 869 870
  *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
     pointer and make the SSL_METHOD parameter in SSL_CTX_new,
     SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
     [Nils Larsch]

871
  *) Modify CRL distribution points extension code to print out previously
872 873
     unsupported fields. Enhance extension setting code to allow setting of
     all fields.
874 875
     [Steve Henson]

876
  *) Add print and set support for Issuing Distribution Point CRL extension.
877
     [Steve Henson]
R
Richard Levitte 已提交
878

879 880 881
  *) Change 'Configure' script to enable Camellia by default.
     [NTT]

882
 Changes between 0.9.8l (?) and 0.9.8m (?)  [xx XXX xxxx]
D
Dr. Stephen Henson 已提交
883

884 885 886 887 888
  *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
     connect (but not renegotiate) with servers which do not support RI.
     Until RI is more widely deployed this option is enabled by default.
     [Steve Henson]

889 890 891
  *) Add "missing" ssl ctrls to clear options and mode.
     [Steve Henson]

892 893 894 895 896 897 898 899 900 901 902
  *) If client attempts to renegotiate and doesn't support RI respond with
     a no_renegotiation alert as required by draft-ietf-tls-renegotiation.
     Some renegotiating TLS clients will continue a connection gracefully
     when they receive the alert. Unfortunately OpenSSL mishandled
     this alert and would hang waiting for a server hello which it will never
     receive. Now we treat a received no_renegotiation alert as a fatal 
     error. This is because applications requesting a renegotiation might well
     expect it to succeed and would have no code in place to handle the server
     denying it so the only safe thing to do is to terminate the connection.
     [Steve Henson]

903 904 905 906 907
  *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
     peer supports secure renegotiation and 0 otherwise. Print out peer
     renegotiation support in s_client/s_server.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
908 909 910 911
  *) Replace the highly broken and deprecated SPKAC certification method with
     the updated NID creation version. This should correctly handle UTF8.
     [Steve Henson]

912
  *) Implement draft-ietf-tls-renegotiation-03. Re-enable
913 914 915 916 917 918
     renegotiation but require the extension as needed. Unfortunately,
     SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION turns out to be a
     bad idea. It has been replaced by
     SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
     SSL_CTX_set_options(). This is really not recommended unless you
     know what you are doing.
919
     [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
920

921 922 923 924
  *) Fixes to stateless session resumption handling. Use initial_ctx when
     issuing and attempting to decrypt tickets in case it has changed during
     servername handling. Use a non-zero length session ID when attempting
     stateless session resumption: this makes it possible to determine if
925
     a resumption has occurred immediately after receiving server hello
926 927 928 929
     (several places in OpenSSL subtly assume this) instead of later in
     the handshake.
     [Steve Henson]

930 931 932 933 934 935
  *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
     CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
     fixes for a few places where the return code is not checked
     correctly.
     [Julia Lawall <julia@diku.dk>]

936 937 938 939
  *) Add --strict-warnings option to Configure script to include devteam
     warnings in other configurations.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
940
  *) Add support for --libdir option and LIBDIR variable in makefiles. This
941
     makes it possible to install openssl libraries in locations which
D
Dr. Stephen Henson 已提交
942 943 944 945
     have names other than "lib", for example "/usr/lib64" which some
     systems need.
     [Steve Henson, based on patch from Jeremy Utley]

946 947 948 949
  *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
     X690 8.9.12 and can produce some misleading textual output of OIDs.
     [Steve Henson, reported by Dan Kaminsky]

950 951 952 953 954 955
  *) Delete MD2 from algorithm tables. This follows the recommendation in
     several standards that it is not used in new applications due to
     several cryptographic weaknesses. For binary compatibility reasons
     the MD2 API is still compiled in by default.
     [Steve Henson]

D
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956 957 958 959
  *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
     and restored.
     [Steve Henson]

960 961 962 963 964
  *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
     OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
     clash.
     [Guenter <lists@gknw.net>]

D
Dr. Stephen Henson 已提交
965 966 967 968 969
  *) Fix the server certificate chain building code to use X509_verify_cert(),
     it used to have an ad-hoc builder which was unable to cope with anything
     other than a simple chain.
     [David Woodhouse <dwmw2@infradead.org>, Steve Henson]

D
Dr. Stephen Henson 已提交
970 971 972 973
  *) Don't check self signed certificate signatures in X509_verify_cert()
     by default (a flag can override this): it just wastes time without
     adding any security. As a useful side effect self signed root CAs
     with non-FIPS digests are now usable in FIPS mode.
D
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974 975
     [Steve Henson]

976 977 978 979 980 981 982
  *) In dtls1_process_out_of_seq_message() the check if the current message
     is already buffered was missing. For every new message was memory
     allocated, allowing an attacker to perform an denial of service attack
     with sending out of seq handshake messages until there is no memory
     left. Additionally every future messege was buffered, even if the
     sequence number made no sense and would be part of another handshake.
     So only messages with sequence numbers less than 10 in advance will be
983
     buffered.  (CVE-2009-1378)
984 985 986 987 988 989 990 991
     [Robin Seggelmann, discovered by Daniel Mentz] 	

  *) Records are buffered if they arrive with a future epoch to be
     processed after finishing the corresponding handshake. There is
     currently no limitation to this buffer allowing an attacker to perform
     a DOS attack with sending records with future epochs until there is no
     memory left. This patch adds the pqueue_size() function to detemine
     the size of a buffer and limits the record buffer to 100 entries.
992
     (CVE-2009-1377)
993 994 995
     [Robin Seggelmann, discovered by Daniel Mentz] 	

  *) Keep a copy of frag->msg_header.frag_len so it can be used after the
996
     parent structure is freed.  (CVE-2009-1379)
997 998
     [Daniel Mentz] 	

D
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999 1000 1001
  *) Handle non-blocking I/O properly in SSL_shutdown() call.
     [Darryl Miles <darryl-mailinglists@netbauds.net>]

D
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1002 1003 1004
  *) Add 2.5.4.* OIDs
     [Ilya O. <vrghost@gmail.com>]

1005 1006 1007 1008 1009 1010 1011 1012 1013 1014
 Changes between 0.9.8k and 0.9.8l  [5 Nov 2009]

  *) Disable renegotiation completely - this fixes a severe security
     problem (CVE-2009-3555) at the cost of breaking all
     renegotiation. Renegotiation can be re-enabled by setting
     SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
     run-time. This is really not recommended unless you know what
     you're doing.
     [Ben Laurie]

D
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1015
 Changes between 0.9.8j and 0.9.8k  [25 Mar 2009]
D
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1016

D
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1017 1018 1019 1020 1021
  *) Don't set val to NULL when freeing up structures, it is freed up by
     underlying code. If sizeof(void *) > sizeof(long) this can result in
     zeroing past the valid field. (CVE-2009-0789)
     [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]

D
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1022 1023 1024 1025 1026
  *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
     checked correctly. This would allow some invalid signed attributes to
     appear to verify correctly. (CVE-2009-0591)
     [Ivan Nestlerode <inestlerode@us.ibm.com>]

D
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1027 1028 1029 1030 1031
  *) Reject UniversalString and BMPString types with invalid lengths. This
     prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
     a legal length. (CVE-2009-0590)
     [Steve Henson]

D
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1032 1033 1034 1035 1036
  *) Set S/MIME signing as the default purpose rather than setting it 
     unconditionally. This allows applications to override it at the store
     level.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
1037 1038 1039 1040
  *) Permit restricted recursion of ASN1 strings. This is needed in practice
     to handle some structures.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
1041 1042 1043 1044
  *) Improve efficiency of mem_gets: don't search whole buffer each time
     for a '\n'
     [Jeremy Shapiro <jnshapir@us.ibm.com>]

B
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1045 1046 1047
  *) New -hex option for openssl rand.
     [Matthieu Herrb]

1048 1049 1050
  *) Print out UTF8String and NumericString when parsing ASN1.
     [Steve Henson]

D
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1051 1052
  *) Support NumericString type for name components.
     [Steve Henson]
1053

B
Ben Laurie 已提交
1054 1055 1056 1057
  *) Allow CC in the environment to override the automatically chosen
     compiler. Note that nothing is done to ensure flags work with the
     chosen compiler.
     [Ben Laurie]
1058

D
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1059 1060 1061 1062 1063
 Changes between 0.9.8i and 0.9.8j  [07 Jan 2009]

  *) Properly check EVP_VerifyFinal() and similar return values
     (CVE-2008-5077).
     [Ben Laurie, Bodo Moeller, Google Security Team]
1064

B
Ben Laurie 已提交
1065 1066 1067
  *) Enable TLS extensions by default.
     [Ben Laurie]

1068
  *) Allow the CHIL engine to be loaded, whether the application is
1069 1070 1071
     multithreaded or not. (This does not release the developer from the
     obligation to set up the dynamic locking callbacks.)
     [Sander Temme <sander@temme.net>]
1072 1073 1074 1075

  *) Use correct exit code if there is an error in dgst command.
     [Steve Henson; problem pointed out by Roland Dirlewanger]

1076 1077 1078 1079 1080 1081
  *) Tweak Configure so that you need to say "experimental-jpake" to enable
     JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
     [Bodo Moeller]

  *) Add experimental JPAKE support, including demo authentication in
     s_client and s_server.
B
Ben Laurie 已提交
1082 1083
     [Ben Laurie]

1084 1085 1086
  *) Set the comparison function in v3_addr_canonize().
     [Rob Austein <sra@hactrn.net>]

B
Ben Laurie 已提交
1087 1088 1089
  *) Add support for XMPP STARTTLS in s_client.
     [Philip Paeps <philip@freebsd.org>]

1090 1091 1092 1093 1094 1095 1096
  *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
     to ensure that even with this option, only ciphersuites in the
     server's preference list will be accepted.  (Note that the option
     applies only when resuming a session, so the earlier behavior was
     just about the algorithm choice for symmetric cryptography.)
     [Bodo Moeller]

1097
 Changes between 0.9.8h and 0.9.8i  [15 Sep 2008]
D
Dr. Stephen Henson 已提交
1098

1099 1100 1101 1102
  *) Fix NULL pointer dereference if a DTLS server received
     ChangeCipherSpec as first record (CVE-2009-1386).
     [PR #1679]

B
Bodo Möller 已提交
1103 1104 1105 1106
  *) Fix a state transitition in s3_srvr.c and d1_srvr.c
     (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
     [Nagendra Modadugu]

1107 1108 1109 1110 1111 1112 1113 1114 1115 1116
  *) The fix in 0.9.8c that supposedly got rid of unsafe
     double-checked locking was incomplete for RSA blinding,
     addressing just one layer of what turns out to have been
     doubly unsafe triple-checked locking.

     So now fix this for real by retiring the MONT_HELPER macro
     in crypto/rsa/rsa_eay.c.

     [Bodo Moeller; problem pointed out by Marius Schilder]

1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132
  *) Various precautionary measures:

     - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).

     - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
       (NB: This would require knowledge of the secret session ticket key
       to exploit, in which case you'd be SOL either way.)

     - Change bn_nist.c so that it will properly handle input BIGNUMs
       outside the expected range.

     - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
       builds.

     [Neel Mehta, Bodo Moeller]

1133 1134 1135 1136
  *) Allow engines to be "soft loaded" - i.e. optionally don't die if
     the load fails. Useful for distros.
     [Ben Laurie and the FreeBSD team]

D
Dr. Stephen Henson 已提交
1137 1138 1139
  *) Add support for Local Machine Keyset attribute in PKCS#12 files.
     [Steve Henson]

1140 1141 1142
  *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
     [Huang Ying]

D
Dr. Stephen Henson 已提交
1143
  *) Expand ENGINE to support engine supplied SSL client certificate functions.
D
Dr. Stephen Henson 已提交
1144 1145

     This work was sponsored by Logica.
D
Dr. Stephen Henson 已提交
1146 1147
     [Steve Henson]

1148 1149
  *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
     keystores. Support for SSL/TLS client authentication too.
D
Dr. Stephen Henson 已提交
1150
     Not compiled unless enable-capieng specified to Configure.
D
Dr. Stephen Henson 已提交
1151 1152

     This work was sponsored by Logica.
D
Dr. Stephen Henson 已提交
1153 1154
     [Steve Henson]

1155 1156 1157 1158 1159
  *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
     ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
     attribute creation routines such as certifcate requests and PKCS#12
     files.
     [Steve Henson]
1160

B
Bodo Möller 已提交
1161
 Changes between 0.9.8g and 0.9.8h  [28 May 2008]
1162

B
Bodo Möller 已提交
1163 1164 1165 1166 1167
  *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
     handshake which could lead to a cilent crash as found using the
     Codenomicon TLS test suite (CVE-2008-1672) 
     [Steve Henson, Mark Cox]

B
Bodo Möller 已提交
1168 1169 1170 1171
  *) Fix double free in TLS server name extensions which could lead to
     a remote crash found by Codenomicon TLS test suite (CVE-2008-0891) 
     [Joe Orton]

1172 1173 1174 1175 1176 1177
  *) Clear error queue in SSL_CTX_use_certificate_chain_file()

     Clear the error queue to ensure that error entries left from
     older function calls do not interfere with the correct operation.
     [Lutz Jaenicke, Erik de Castro Lopo]

1178 1179 1180 1181 1182 1183 1184 1185
  *) Remove root CA certificates of commercial CAs:

     The OpenSSL project does not recommend any specific CA and does not
     have any policy with respect to including or excluding any CA.
     Therefore it does not make any sense to ship an arbitrary selection
     of root CA certificates with the OpenSSL software.
     [Lutz Jaenicke]

1186 1187 1188 1189 1190 1191
  *) RSA OAEP patches to fix two separate invalid memory reads.
     The first one involves inputs when 'lzero' is greater than
     'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
     before the beginning of from). The second one involves inputs where
     the 'db' section contains nothing but zeroes (there is a one-byte
     invalid read after the end of 'db').
D
Typo.  
Dr. Stephen Henson 已提交
1192
     [Ivan Nestlerode <inestlerode@us.ibm.com>]
1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212

  *) Partial backport from 0.9.9-dev:

     Introduce bn_mul_mont (dedicated Montgomery multiplication
     procedure) as a candidate for BIGNUM assembler implementation.
     While 0.9.9-dev uses assembler for various architectures, only
     x86_64 is available by default here in the 0.9.8 branch, and
     32-bit x86 is available through a compile-time setting.

     To try the 32-bit x86 assembler implementation, use Configure
     option "enable-montasm" (which exists only for this backport).

     As "enable-montasm" for 32-bit x86 disclaims code stability
     anyway, in this constellation we activate additional code
     backported from 0.9.9-dev for further performance improvements,
     namely BN_from_montgomery_word.  (To enable this otherwise,
     e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)

     [Andy Polyakov (backport partially by Bodo Moeller)]

D
Dr. Stephen Henson 已提交
1213 1214 1215 1216 1217
  *) Add TLS session ticket callback. This allows an application to set
     TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
     values. This is useful for key rollover for example where several key
     sets may exist with different names.
     [Steve Henson]
1218

1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230
  *) Reverse ENGINE-internal logic for caching default ENGINE handles.
     This was broken until now in 0.9.8 releases, such that the only way
     a registered ENGINE could be used (assuming it initialises
     successfully on the host) was to explicitly set it as the default
     for the relevant algorithms. This is in contradiction with 0.9.7
     behaviour and the documentation. With this fix, when an ENGINE is
     registered into a given algorithm's table of implementations, the
     'uptodate' flag is reset so that auto-discovery will be used next
     time a new context for that algorithm attempts to select an
     implementation.
     [Ian Lister (tweaked by Geoff Thorpe)]

1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244
  *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
     implemention in the following ways:

     Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
     hard coded.

     Lack of BER streaming support means one pass streaming processing is
     only supported if data is detached: setting the streaming flag is
     ignored for embedded content.

     CMS support is disabled by default and must be explicitly enabled
     with the enable-cms configuration option.
     [Steve Henson]

1245 1246 1247
  *) Update the GMP engine glue to do direct copies between BIGNUM and
     mpz_t when openssl and GMP use the same limb size. Otherwise the
     existing "conversion via a text string export" trick is still used.
1248
     [Paul Sheer <paulsheer@gmail.com>]
1249

D
Dr. Stephen Henson 已提交
1250 1251 1252 1253
  *) Zlib compression BIO. This is a filter BIO which compressed and
     uncompresses any data passed through it.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266
  *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
     RFC3394 compatible AES key wrapping.
     [Steve Henson]

  *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
     sets string data without copying. X509_ALGOR_set0() and
     X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
     data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
     from an X509_ATTRIBUTE structure optionally checking it occurs only
     once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
     data.
     [Steve Henson]

B
Bodo Möller 已提交
1267 1268 1269 1270
  *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
     to get the expected BN_FLG_CONSTTIME behavior.
     [Bodo Moeller (Google)]
  
1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289
  *) Netware support:

     - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
     - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
     - added some more tests to do_tests.pl
     - fixed RunningProcess usage so that it works with newer LIBC NDKs too
     - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
     - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
       netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
     - various changes to netware.pl to enable gcc-cross builds on Win32
       platform
     - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
     - various changes to fix missing prototype warnings
     - fixed x86nasm.pl to create correct asm files for NASM COFF output
     - added AES, WHIRLPOOL and CPUID assembler code to build files
     - added missing AES assembler make rules to mk1mf.pl
     - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
     [Guenter Knauf <eflash@gmx.net>]

1290 1291 1292 1293 1294 1295 1296
  *) Implement certificate status request TLS extension defined in RFC3546.
     A client can set the appropriate parameters and receive the encoded
     OCSP response via a callback. A server can query the supplied parameters
     and set the encoded OCSP response in the callback. Add simplified examples
     to s_client and s_server.
     [Steve Henson]

1297 1298 1299 1300 1301 1302 1303 1304 1305
 Changes between 0.9.8f and 0.9.8g  [19 Oct 2007]

  *) Fix various bugs:
     + Binary incompatibility of ssl_ctx_st structure
     + DTLS interoperation with non-compliant servers
     + Don't call get_session_cb() without proposed session
     + Fix ia64 assembler code
     [Andy Polyakov, Steve Henson]

1306
 Changes between 0.9.8e and 0.9.8f  [11 Oct 2007]
1307

1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381
  *) DTLS Handshake overhaul. There were longstanding issues with
     OpenSSL DTLS implementation, which were making it impossible for
     RFC 4347 compliant client to communicate with OpenSSL server.
     Unfortunately just fixing these incompatibilities would "cut off"
     pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
     server keeps tolerating non RFC compliant syntax. The opposite is
     not true, 0.9.8f client can not communicate with earlier server.
     This update even addresses CVE-2007-4995.
     [Andy Polyakov]

  *) Changes to avoid need for function casts in OpenSSL: some compilers
     (gcc 4.2 and later) reject their use.
     [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
      Steve Henson]
  
  *) Add RFC4507 support to OpenSSL. This includes the corrections in
     RFC4507bis. The encrypted ticket format is an encrypted encoded
     SSL_SESSION structure, that way new session features are automatically
     supported.

     If a client application caches session in an SSL_SESSION structure
     support is transparent because tickets are now stored in the encoded
     SSL_SESSION.
     
     The SSL_CTX structure automatically generates keys for ticket
     protection in servers so again support should be possible
     with no application modification.

     If a client or server wishes to disable RFC4507 support then the option
     SSL_OP_NO_TICKET can be set.

     Add a TLS extension debugging callback to allow the contents of any client
     or server extensions to be examined.

     This work was sponsored by Google.
     [Steve Henson]

  *) Add initial support for TLS extensions, specifically for the server_name
     extension so far.  The SSL_SESSION, SSL_CTX, and SSL data structures now
     have new members for a host name.  The SSL data structure has an
     additional member SSL_CTX *initial_ctx so that new sessions can be
     stored in that context to allow for session resumption, even after the
     SSL has been switched to a new SSL_CTX in reaction to a client's
     server_name extension.

     New functions (subject to change):

         SSL_get_servername()
         SSL_get_servername_type()
         SSL_set_SSL_CTX()

     New CTRL codes and macros (subject to change):

         SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
                                 - SSL_CTX_set_tlsext_servername_callback()
         SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
                                      - SSL_CTX_set_tlsext_servername_arg()
         SSL_CTRL_SET_TLSEXT_HOSTNAME           - SSL_set_tlsext_host_name()

     openssl s_client has a new '-servername ...' option.

     openssl s_server has new options '-servername_host ...', '-cert2 ...',
     '-key2 ...', '-servername_fatal' (subject to change).  This allows
     testing the HostName extension for a specific single host name ('-cert'
     and '-key' remain fallbacks for handshakes without HostName
     negotiation).  If the unrecogninzed_name alert has to be sent, this by
     default is a warning; it becomes fatal with the '-servername_fatal'
     option.

     [Peter Sylvester,  Remy Allais, Christophe Renou, Steve Henson]

  *) Add AES and SSE2 assembly language support to VC++ build.
     [Steve Henson]

A
Andy Polyakov 已提交
1382 1383 1384
  *) Mitigate attack on final subtraction in Montgomery reduction.
     [Andy Polyakov]

1385 1386 1387 1388
  *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
     (which previously caused an internal error).
     [Bodo Moeller]

B
Ben Laurie 已提交
1389 1390 1391
  *) Squeeze another 10% out of IGE mode when in != out.
     [Ben Laurie]

B
Ben Laurie 已提交
1392 1393 1394
  *) AES IGE mode speedup.
     [Dean Gaudet (Google)]

B
Bodo Möller 已提交
1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408
  *) Add the Korean symmetric 128-bit cipher SEED (see
     http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
     add SEED ciphersuites from RFC 4162:

        TLS_RSA_WITH_SEED_CBC_SHA      =  "SEED-SHA"
        TLS_DHE_DSS_WITH_SEED_CBC_SHA  =  "DHE-DSS-SEED-SHA"
        TLS_DHE_RSA_WITH_SEED_CBC_SHA  =  "DHE-RSA-SEED-SHA"
        TLS_DH_anon_WITH_SEED_CBC_SHA  =  "ADH-SEED-SHA"

     To minimize changes between patchlevels in the OpenSSL 0.9.8
     series, SEED remains excluded from compilation unless OpenSSL
     is configured with 'enable-seed'.
     [KISA, Bodo Moeller]

1409 1410 1411 1412 1413 1414 1415 1416 1417 1418
  *) Mitigate branch prediction attacks, which can be practical if a
     single processor is shared, allowing a spy process to extract
     information.  For detailed background information, see
     http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
     J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
     and Necessary Software Countermeasures").  The core of the change
     are new versions BN_div_no_branch() and
     BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
     respectively, which are slower, but avoid the security-relevant
     conditional branches.  These are automatically called by BN_div()
1419 1420 1421
     and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
     of the input BIGNUMs.  Also, BN_is_bit_set() has been changed to
     remove a conditional branch.
1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445

     BN_FLG_CONSTTIME is the new name for the previous
     BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
     modular exponentiation.  (Since OpenSSL 0.9.7h, setting this flag
     in the exponent causes BN_mod_exp_mont() to use the alternative
     implementation in BN_mod_exp_mont_consttime().)  The old name
     remains as a deprecated alias.

     Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
     RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
     constant-time implementations for more than just exponentiation.
     Here too the old name is kept as a deprecated alias.

     BN_BLINDING_new() will now use BN_dup() for the modulus so that
     the BN_BLINDING structure gets an independent copy of the
     modulus.  This means that the previous "BIGNUM *m" argument to
     BN_BLINDING_new() and to BN_BLINDING_create_param() now
     essentially becomes "const BIGNUM *m", although we can't actually
     change this in the header file before 0.9.9.  It allows
     RSA_setup_blinding() to use BN_with_flags() on the modulus to
     enable BN_FLG_CONSTTIME.

     [Matthew D Wood (Intel Corp)]

1446 1447 1448 1449 1450 1451 1452 1453 1454 1455
  *) In the SSL/TLS server implementation, be strict about session ID
     context matching (which matters if an application uses a single
     external cache for different purposes).  Previously,
     out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
     set.  This did ensure strict client verification, but meant that,
     with applications using a single external cache for quite
     different requirements, clients could circumvent ciphersuite
     restrictions for a given session ID context by starting a session
     in a different context.
     [Bodo Moeller]
1456

1457 1458 1459 1460 1461
  *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
     a ciphersuite string such as "DEFAULT:RSA" cannot enable
     authentication-only ciphersuites.
     [Bodo Moeller]

1462 1463 1464 1465
  *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
     not complete and could lead to a possible single byte overflow
     (CVE-2007-5135) [Ben Laurie]

1466 1467
 Changes between 0.9.8d and 0.9.8e  [23 Feb 2007]

1468 1469 1470 1471 1472 1473 1474
  *) Since AES128 and AES256 (and similarly Camellia128 and
     Camellia256) share a single mask bit in the logic of
     ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
     kludge to work properly if AES128 is available and AES256 isn't
     (or if Camellia128 is available and Camellia256 isn't).
     [Victor Duchovni]

1475 1476 1477 1478 1479 1480 1481 1482
  *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
     (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
     When a point or a seed is encoded in a BIT STRING, we need to
     prevent the removal of trailing zero bits to get the proper DER
     encoding.  (By default, crypto/asn1/a_bitstr.c assumes the case
     of a NamedBitList, for which trailing 0 bits need to be removed.)
     [Bodo Moeller]

1483 1484 1485 1486 1487 1488 1489
  *) Have SSL/TLS server implementation tolerate "mismatched" record
     protocol version while receiving ClientHello even if the
     ClientHello is fragmented.  (The server can't insist on the
     particular protocol version it has chosen before the ServerHello
     message has informed the client about his choice.)
     [Bodo Moeller]

B
Ben Laurie 已提交
1490 1491 1492
  *) Add RFC 3779 support.
     [Rob Austein for ARIN, Ben Laurie]

1493 1494 1495 1496 1497
  *) Load error codes if they are not already present instead of using a
     static variable. This allows them to be cleanly unloaded and reloaded.
     Improve header file function name parsing.
     [Steve Henson]

1498 1499 1500 1501
  *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
     or CAPABILITY handshake as required by RFCs.
     [Goetz Babin-Ebell]

1502
 Changes between 0.9.8c and 0.9.8d  [28 Sep 2006]
1503

1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517
  *) Introduce limits to prevent malicious keys being able to
     cause a denial of service.  (CVE-2006-2940)
     [Steve Henson, Bodo Moeller]

  *) Fix ASN.1 parsing of certain invalid structures that can result
     in a denial of service.  (CVE-2006-2937)  [Steve Henson]

  *) Fix buffer overflow in SSL_get_shared_ciphers() function. 
     (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]

  *) Fix SSL client code which could crash if connecting to a
     malicious SSLv2 server.  (CVE-2006-4343)
     [Tavis Ormandy and Will Drewry, Google Security Team]

1518 1519
  *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
     match only those.  Before that, "AES256-SHA" would be interpreted
B
Update  
Bodo Möller 已提交
1520 1521
     as a pattern and match "AES128-SHA" too (since AES128-SHA got
     the same strength classification in 0.9.7h) as we currently only
1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544
     have a single AES bit in the ciphersuite description bitmap.
     That change, however, also applied to ciphersuite strings such as
     "RC4-MD5" that intentionally matched multiple ciphersuites --
     namely, SSL 2.0 ciphersuites in addition to the more common ones
     from SSL 3.0/TLS 1.0.

     So we change the selection algorithm again: Naming an explicit
     ciphersuite selects this one ciphersuite, and any other similar
     ciphersuite (same bitmap) from *other* protocol versions.
     Thus, "RC4-MD5" again will properly select both the SSL 2.0
     ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.

     Since SSL 2.0 does not have any ciphersuites for which the
     128/256 bit distinction would be relevant, this works for now.
     The proper fix will be to use different bits for AES128 and
     AES256, which would have avoided the problems from the beginning;
     however, bits are scarce, so we can only do this in a new release
     (not just a patchlevel) when we can change the SSL_CIPHER
     definition to split the single 'unsigned long mask' bitmap into
     multiple values to extend the available space.

     [Bodo Moeller]

1545 1546 1547 1548
 Changes between 0.9.8b and 0.9.8c  [05 Sep 2006]

  *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
     (CVE-2006-4339)  [Ben Laurie and Google Security Team]
D
Dr. Stephen Henson 已提交
1549

B
Ben Laurie 已提交
1550 1551 1552
  *) Add AES IGE and biIGE modes.
     [Ben Laurie]

1553 1554 1555 1556 1557
  *) Change the Unix randomness entropy gathering to use poll() when
     possible instead of select(), since the latter has some
     undesirable limitations.
     [Darryl Miles via Richard Levitte and Bodo Moeller]

B
Bodo Möller 已提交
1558 1559 1560 1561 1562 1563 1564
  *) Disable "ECCdraft" ciphersuites more thoroughly.  Now special
     treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
     cannot be implicitly activated as part of, e.g., the "AES" alias.
     However, please upgrade to OpenSSL 0.9.9[-dev] for
     non-experimental use of the ECC ciphersuites to get TLS extension
     support, which is required for curve and point format negotiation
     to avoid potential handshake problems.
1565 1566
     [Bodo Moeller]

B
Bodo Möller 已提交
1567 1568 1569 1570 1571 1572 1573 1574 1575 1576
  *) Disable rogue ciphersuites:

      - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
      - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
      - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")

     The latter two were purportedly from
     draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
     appear there.

N
Nils Larsch 已提交
1577
     Also deactivate the remaining ciphersuites from
B
Bodo Möller 已提交
1578 1579 1580 1581
     draft-ietf-tls-56-bit-ciphersuites-01.txt.  These are just as
     unofficial, and the ID has long expired.
     [Bodo Moeller]

B
Bodo Möller 已提交
1582 1583 1584 1585
  *) Fix RSA blinding Heisenbug (problems sometimes occured on
     dual-core machines) and other potential thread-safety issues.
     [Bodo Moeller]

1586 1587 1588 1589 1590 1591 1592 1593 1594 1595
  *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
     versions), which is now available for royalty-free use
     (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
     Also, add Camellia TLS ciphersuites from RFC 4132.

     To minimize changes between patchlevels in the OpenSSL 0.9.8
     series, Camellia remains excluded from compilation unless OpenSSL
     is configured with 'enable-camellia'.
     [NTT]

D
Dr. Stephen Henson 已提交
1596 1597 1598 1599 1600 1601 1602 1603 1604
  *) Disable the padding bug check when compression is in use. The padding
     bug check assumes the first packet is of even length, this is not
     necessarily true if compresssion is enabled and can result in false
     positives causing handshake failure. The actual bug test is ancient
     code so it is hoped that implementations will either have fixed it by
     now or any which still have the bug do not support compression.
     [Steve Henson]

 Changes between 0.9.8a and 0.9.8b  [04 May 2006]
R
Richard Levitte 已提交
1605

1606 1607 1608 1609
  *) When applying a cipher rule check to see if string match is an explicit
     cipher suite and only match that one cipher suite if it is.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
1610 1611 1612
  *) Link in manifests for VC++ if needed.
     [Austin Ziegler <halostatue@gmail.com>]

B
Bodo Möller 已提交
1613
  *) Update support for ECC-based TLS ciphersuites according to
B
Bodo Möller 已提交
1614 1615 1616
     draft-ietf-tls-ecc-12.txt with proposed changes (but without
     TLS extensions, which are supported starting with the 0.9.9
     branch, not in the OpenSSL 0.9.8 branch).
B
Bodo Möller 已提交
1617 1618
     [Douglas Stebila]

1619 1620 1621 1622
  *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
     opaque EVP_CIPHER_CTX handling.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
1623 1624 1625 1626 1627 1628 1629 1630 1631 1632
  *) Fixes and enhancements to zlib compression code. We now only use
     "zlib1.dll" and use the default __cdecl calling convention on Win32
     to conform with the standards mentioned here:
           http://www.zlib.net/DLL_FAQ.txt
     Static zlib linking now works on Windows and the new --with-zlib-include
     --with-zlib-lib options to Configure can be used to supply the location
     of the headers and library. Gracefully handle case where zlib library
     can't be loaded.
     [Steve Henson]

1633 1634 1635 1636 1637 1638
  *) Several fixes and enhancements to the OID generation code. The old code
     sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
     handle numbers larger than ULONG_MAX, truncated printing and had a
     non standard OBJ_obj2txt() behaviour.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
1639 1640 1641 1642
  *) Add support for building of engines under engine/ as shared libraries
     under VC++ build system.
     [Steve Henson]

R
Richard Levitte 已提交
1643 1644 1645 1646
  *) Corrected the numerous bugs in the Win32 path splitter in DSO.
     Hopefully, we will not see any false combination of paths any more.
     [Richard Levitte]

1647 1648 1649 1650 1651 1652
 Changes between 0.9.8 and 0.9.8a  [11 Oct 2005]

  *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
     (part of SSL_OP_ALL).  This option used to disable the
     countermeasure against man-in-the-middle protocol-version
     rollback in the SSL 2.0 server implementation, which is a bad
M
Mark J. Cox 已提交
1653
     idea.  (CVE-2005-2969)
1654 1655 1656 1657

     [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
     for Information Security, National Institute of Advanced Industrial
     Science and Technology [AIST], Japan)]
R
Richard Levitte 已提交
1658

1659 1660 1661
  *) Add two function to clear and return the verify parameter flags.
     [Steve Henson]

1662 1663 1664 1665
  *) Keep cipherlists sorted in the source instead of sorting them at
     runtime, thus removing the need for a lock.
     [Nils Larsch]

1666
  *) Avoid some small subgroup attacks in Diffie-Hellman.
1667 1668 1669 1670 1671
     [Nick Mathewson and Ben Laurie]

  *) Add functions for well-known primes.
     [Nick Mathewson]

A
Andy Polyakov 已提交
1672 1673
  *) Extended Windows CE support.
     [Satoshi Nakamura and Andy Polyakov]
1674

1675 1676 1677 1678
  *) Initialize SSL_METHOD structures at compile time instead of during
     runtime, thus removing the need for a lock.
     [Steve Henson]

1679 1680 1681 1682
  *) Make PKCS7_decrypt() work even if no certificate is supplied by
     attempting to decrypt each encrypted key in turn. Add support to
     smime utility.
     [Steve Henson]
R
Richard Levitte 已提交
1683 1684

 Changes between 0.9.7h and 0.9.8  [05 Jul 2005]
1685

B
Bodo Möller 已提交
1686 1687 1688
  [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
  OpenSSL 0.9.8.]

R
Richard Levitte 已提交
1689 1690 1691 1692 1693 1694 1695
  *) Add libcrypto.pc and libssl.pc for those who feel they need them.
     [Richard Levitte]

  *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
     key into the same file any more.
     [Richard Levitte]

1696 1697 1698
  *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
     [Andy Polyakov]

D
Dr. Stephen Henson 已提交
1699 1700 1701
  *) Add -utf8 command line and config file option to 'ca'.
     [Stefan <stf@udoma.org]

R
Richard Levitte 已提交
1702 1703 1704 1705
  *) Removed the macro des_crypt(), as it seems to conflict with some
     libraries.  Use DES_crypt().
     [Richard Levitte]

1706 1707 1708 1709 1710 1711 1712
  *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
     involves renaming the source and generated shared-libs for
     both. The engines will accept the corrected or legacy ids
     ('ncipher' and '4758_cca' respectively) when binding. NB,
     this only applies when building 'shared'.
     [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]

1713 1714 1715 1716 1717
  *) Add attribute functions to EVP_PKEY structure. Modify
     PKCS12_create() to recognize a CSP name attribute and
     use it. Make -CSP option work again in pkcs12 utility.
     [Steve Henson]

1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729
  *) Add new functionality to the bn blinding code:
     - automatic re-creation of the BN_BLINDING parameters after
       a fixed number of uses (currently 32)
     - add new function for parameter creation
     - introduce flags to control the update behaviour of the
       BN_BLINDING parameters
     - hide BN_BLINDING structure
     Add a second BN_BLINDING slot to the RSA structure to improve
     performance when a single RSA object is shared among several
     threads.
     [Nils Larsch]

B
Ben Laurie 已提交
1730 1731 1732
  *) Add support for DTLS.
     [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]

1733 1734 1735 1736
  *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
     to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
     [Walter Goulet]

1737 1738 1739 1740
  *) Remove buggy and incompletet DH cert support from
     ssl/ssl_rsa.c and ssl/s3_both.c
     [Nils Larsch]

1741 1742 1743
  *) Use SHA-1 instead of MD5 as the default digest algorithm for
     the apps/openssl applications.
     [Nils Larsch]
B
Bodo Möller 已提交
1744

1745 1746 1747 1748 1749
  *) Compile clean with "-Wall -Wmissing-prototypes
     -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
     DEBUG_SAFESTACK must also be set.
     [Ben Laurie]

1750
  *) Change ./Configure so that certain algorithms can be disabled by default.
1751 1752 1753 1754 1755 1756 1757 1758 1759 1760
     The new counterpiece to "no-xxx" is "enable-xxx".

     The patented RC5 and MDC2 algorithms will now be disabled unless
     "enable-rc5" and "enable-mdc2", respectively, are specified.

     (IDEA remains enabled despite being patented.  This is because IDEA
     is frequently required for interoperability, and there is no license
     fee for non-commercial use.  As before, "no-idea" can be used to
     avoid this algorithm.)

1761 1762
     [Bodo Moeller]

1763 1764 1765 1766 1767
  *) Add processing of proxy certificates (see RFC 3820).  This work was
     sponsored by KTH (The Royal Institute of Technology in Stockholm) and
     EGEE (Enabling Grids for E-science in Europe).
     [Richard Levitte]

A
Andy Polyakov 已提交
1768 1769 1770 1771
  *) RC4 performance overhaul on modern architectures/implementations, such
     as Intel P4, IA-64 and AMD64.
     [Andy Polyakov]

1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782
  *) New utility extract-section.pl. This can be used specify an alternative
     section number in a pod file instead of having to treat each file as
     a separate case in Makefile. This can be done by adding two lines to the
     pod file:

     =for comment openssl_section:XXX

     The blank line is mandatory.

     [Steve Henson]

D
PR: 910  
Dr. Stephen Henson 已提交
1783 1784 1785 1786 1787
  *) New arguments -certform, -keyform and -pass for s_client and s_server
     to allow alternative format key and certificate files and passphrase
     sources.
     [Steve Henson]

1788 1789 1790 1791 1792 1793 1794 1795
  *) New structure X509_VERIFY_PARAM which combines current verify parameters,
     update associated structures and add various utility functions.

     Add new policy related verify parameters, include policy checking in 
     standard verify code. Enhance 'smime' application with extra parameters
     to support policy checking and print out.
     [Steve Henson]

G
Geoff Thorpe 已提交
1796 1797 1798 1799 1800
  *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
     Nehemiah processors. These extensions support AES encryption in hardware
     as well as RNG (though RNG support is currently disabled).
     [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]

1801 1802 1803
  *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
     [Geoff Thorpe]

1804 1805 1806
  *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
     [Andy Polyakov and a number of other people]

1807 1808 1809 1810
  *) Improved PowerPC platform support. Most notably BIGNUM assembler
     implementation contributed by IBM.
     [Suresh Chari, Peter Waltenberg, Andy Polyakov]

1811 1812 1813 1814 1815
  *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
     exponent rather than 'unsigned long'. There is a corresponding change to
     the new 'rsa_keygen' element of the RSA_METHOD structure.
     [Jelte Jansen, Geoff Thorpe]

1816 1817 1818 1819 1820 1821 1822 1823 1824
  *) Functionality for creating the initial serial number file is now
     moved from CA.pl to the 'ca' utility with a new option -create_serial.

     (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
     number file to 1, which is bound to cause problems.  To avoid
     the problems while respecting compatibility between different 0.9.7
     patchlevels, 0.9.7e  employed 'openssl x509 -next_serial' in
     CA.pl for serial number initialization.  With the new release 0.9.8,
     we can fix the problem directly in the 'ca' utility.)
1825 1826
     [Steve Henson]

1827 1828 1829 1830 1831 1832 1833 1834 1835
  *) Reduced header interdepencies by declaring more opaque objects in
     ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
     give fewer recursive includes, which could break lazy source code - so
     this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
     developers should define this symbol when building and using openssl to
     ensure they track the recommended behaviour, interfaces, [etc], but
     backwards-compatible behaviour prevails when this isn't defined.
     [Geoff Thorpe]

D
Dr. Stephen Henson 已提交
1836 1837 1838
  *) New function X509_POLICY_NODE_print() which prints out policy nodes.
     [Steve Henson]

1839 1840 1841 1842 1843 1844 1845 1846 1847 1848
  *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
     This will generate a random key of the appropriate length based on the 
     cipher context. The EVP_CIPHER can provide its own random key generation
     routine to support keys of a specific form. This is used in the des and 
     3des routines to generate a key of the correct parity. Update S/MIME
     code to use new functions and hence generate correct parity DES keys.
     Add EVP_CHECK_DES_KEY #define to return an error if the key is not 
     valid (weak or incorrect parity).
     [Steve Henson]

1849 1850 1851 1852 1853 1854
  *) Add a local set of CRLs that can be used by X509_verify_cert() as well
     as looking them up. This is useful when the verified structure may contain
     CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
     present unless the new PKCS7_NO_CRL flag is asserted.
     [Steve Henson]

1855 1856 1857 1858 1859 1860
  *) Extend ASN1 oid configuration module. It now additionally accepts the
     syntax:

     shortName = some long name, 1.2.3.4
     [Steve Henson]

1861 1862 1863 1864 1865 1866 1867 1868 1869
  *) Reimplemented the BN_CTX implementation. There is now no more static
     limitation on the number of variables it can handle nor the depth of the
     "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
     information can now expand as required, and rather than having a single
     static array of bignums, BN_CTX now uses a linked-list of such arrays
     allowing it to expand on demand whilst maintaining the usefulness of
     BN_CTX's "bundling".
     [Geoff Thorpe]

1870 1871 1872 1873
  *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
     to allow all RSA operations to function using a single BN_CTX.
     [Geoff Thorpe]

1874 1875 1876 1877 1878
  *) Preliminary support for certificate policy evaluation and checking. This
     is initially intended to pass the tests outlined in "Conformance Testing
     of Relying Party Client Certificate Path Processing Logic" v1.07.
     [Steve Henson]

1879 1880 1881 1882 1883 1884
  *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
     remained unused and not that useful. A variety of other little bignum
     tweaks and fixes have also been made continuing on from the audit (see
     below).
     [Geoff Thorpe]

1885 1886
  *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
     associated ASN1, EVP and SSL functions and old ASN1 macros.
1887
     [Richard Levitte]
1888

1889 1890 1891 1892 1893 1894
  *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
     and this should never fail. So the return value from the use of
     BN_set_word() (which can fail due to needless expansion) is now deprecated;
     if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
     [Geoff Thorpe]

1895 1896 1897 1898
  *) BN_CTX_get() should return zero-valued bignums, providing the same
     initialised value as BN_new().
     [Geoff Thorpe, suggested by Ulf Möller]

1899 1900 1901
  *) Support for inhibitAnyPolicy certificate extension.
     [Steve Henson]

1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915
  *) An audit of the BIGNUM code is underway, for which debugging code is
     enabled when BN_DEBUG is defined. This makes stricter enforcements on what
     is considered valid when processing BIGNUMs, and causes execution to
     assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
     further steps are taken to deliberately pollute unused data in BIGNUM
     structures to try and expose faulty code further on. For now, openssl will
     (in its default mode of operation) continue to tolerate the inconsistent
     forms that it has tolerated in the past, but authors and packagers should
     consider trying openssl and their own applications when compiled with
     these debugging symbols defined. It will help highlight potential bugs in
     their own code, and will improve the test coverage for OpenSSL itself. At
     some point, these tighter rules will become openssl's default to improve
     maintainability, though the assert()s and other overheads will remain only
     in debugging configurations. See bn.h for more details.
1916
     [Geoff Thorpe, Nils Larsch, Ulf Möller]
1917

1918 1919 1920 1921 1922 1923
  *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
     that can only be obtained through BN_CTX_new() (which implicitly
     initialises it). The presence of this function only made it possible
     to overwrite an existing structure (and cause memory leaks).
     [Geoff Thorpe]

1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934
  *) Because of the callback-based approach for implementing LHASH as a
     template type, lh_insert() adds opaque objects to hash-tables and
     lh_doall() or lh_doall_arg() are typically used with a destructor callback
     to clean up those corresponding objects before destroying the hash table
     (and losing the object pointers). So some over-zealous constifications in
     LHASH have been relaxed so that lh_insert() does not take (nor store) the
     objects as "const" and the lh_doall[_arg] callback wrappers are not
     prototyped to have "const" restrictions on the object pointers they are
     given (and so aren't required to cast them away any more).
     [Geoff Thorpe]

1935 1936 1937 1938 1939 1940 1941 1942 1943
  *) The tmdiff.h API was so ugly and minimal that our own timing utility
     (speed) prefers to use its own implementation. The two implementations
     haven't been consolidated as yet (volunteers?) but the tmdiff API has had
     its object type properly exposed (MS_TM) instead of casting to/from "char
     *". This may still change yet if someone realises MS_TM and "ms_time_***"
     aren't necessarily the greatest nomenclatures - but this is what was used
     internally to the implementation so I've used that for now.
     [Geoff Thorpe]

1944
  *) Ensure that deprecated functions do not get compiled when
1945 1946 1947
     OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
     the self-tests were still using deprecated key-generation functions so
     these have been updated also.
1948 1949
     [Geoff Thorpe]

1950 1951 1952 1953 1954 1955
  *) Reorganise PKCS#7 code to separate the digest location functionality
     into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
     New function PKCS7_set_digest() to set the digest type for PKCS#7
     digestedData type. Add additional code to correctly generate the
     digestedData type and add support for this type in PKCS7 initialization
     functions.
1956 1957
     [Steve Henson]

1958 1959
  *) New function PKCS7_set0_type_other() this initializes a PKCS7 
     structure of type "other".
1960 1961
     [Steve Henson]

1962 1963 1964 1965 1966 1967 1968 1969
  *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
     sure the loop does correctly stop and breaking ("division by zero")
     modulus operations are not performed. The (pre-generated) prime
     table crypto/bn/bn_prime.h was already correct, but it could not be
     re-generated on some platforms because of the "division by zero"
     situation in the script.
     [Ralf S. Engelschall]

1970 1971 1972 1973 1974 1975 1976 1977
  *) Update support for ECC-based TLS ciphersuites according to
     draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
     SHA-1 now is only used for "small" curves (where the
     representation of a field element takes up to 24 bytes); for
     larger curves, the field element resulting from ECDH is directly
     used as premaster secret.
     [Douglas Stebila (Sun Microsystems Laboratories)]

B
Bodo Möller 已提交
1978 1979 1980 1981
  *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
     curve secp160r1 to the tests.
     [Douglas Stebila (Sun Microsystems Laboratories)]

1982 1983 1984
  *) Add the possibility to load symbols globally with DSO.
     [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]

1985 1986 1987 1988
  *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
     control of the error stack.
     [Richard Levitte]

R
Richard Levitte 已提交
1989 1990 1991
  *) Add support for STORE in ENGINE.
     [Richard Levitte]

1992 1993 1994 1995 1996 1997
  *) Add the STORE type.  The intention is to provide a common interface
     to certificate and key stores, be they simple file-based stores, or
     HSM-type store, or LDAP stores, or...
     NOTE: The code is currently UNTESTED and isn't really used anywhere.
     [Richard Levitte]

1998 1999 2000 2001 2002
  *) Add a generic structure called OPENSSL_ITEM.  This can be used to
     pass a list of arguments to any function as well as provide a way
     for a function to pass data back to the caller.
     [Richard Levitte]

2003 2004 2005 2006 2007 2008
  *) Add the functions BUF_strndup() and BUF_memdup().  BUF_strndup()
     works like BUF_strdup() but can be used to duplicate a portion of
     a string.  The copy gets NUL-terminated.  BUF_memdup() duplicates
     a memory area.
     [Richard Levitte]

2009 2010 2011 2012 2013 2014
  *) Add the function sk_find_ex() which works like sk_find(), but will
     return an index to an element even if an exact match couldn't be
     found.  The index is guaranteed to point at the element where the
     searched-for key would be inserted to preserve sorting order.
     [Richard Levitte]

2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028
  *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
     takes an extra flags argument for optional functionality.  Currently,
     the following flags are defined:

	OBJ_BSEARCH_VALUE_ON_NOMATCH
	This one gets OBJ_bsearch_ex() to return a pointer to the first
	element where the comparing function returns a negative or zero
	number.

	OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
	This one gets OBJ_bsearch_ex() to return a pointer to the first
	element where the comparing function returns zero.  This is useful
	if there are more than one element where the comparing function
	returns zero.
2029
     [Richard Levitte]
2030

2031 2032 2033 2034 2035 2036 2037
  *) Make it possible to create self-signed certificates with 'openssl ca'
     in such a way that the self-signed certificate becomes part of the
     CA database and uses the same mechanisms for serial number generation
     as all other certificate signing.  The new flag '-selfsign' enables
     this functionality.  Adapt CA.sh and CA.pl.in.
     [Richard Levitte]

2038 2039 2040 2041 2042
  *) Add functionality to check the public key of a certificate request
     against a given private.  This is useful to check that a certificate
     request can be signed by that key (self-signing).
     [Richard Levitte]

2043 2044 2045 2046 2047 2048 2049 2050
  *) Make it possible to have multiple active certificates with the same
     subject in the CA index file.  This is done only if the keyword
     'unique_subject' is set to 'no' in the main CA section (default
     if 'CA_default') of the configuration file.  The value is saved
     with the database itself in a separate index attribute file,
     named like the index file with '.attr' appended to the name.
     [Richard Levitte]

D
Dr. Stephen Henson 已提交
2051 2052 2053 2054
  *) Generate muti valued AVAs using '+' notation in config files for
     req and dirName.
     [Steve Henson]

2055 2056 2057
  *) Support for nameConstraints certificate extension.
     [Steve Henson]

2058 2059 2060
  *) Support for policyConstraints certificate extension.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
2061 2062 2063
  *) Support for policyMappings certificate extension.
     [Steve Henson]

2064 2065 2066 2067 2068 2069 2070
  *) Make sure the default DSA_METHOD implementation only uses its
     dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
     and change its own handlers to be NULL so as to remove unnecessary
     indirection. This lets alternative implementations fallback to the
     default implementation more easily.
     [Geoff Thorpe]

2071 2072 2073 2074
  *) Support for directoryName in GeneralName related extensions
     in config files.
     [Steve Henson]

2075 2076 2077 2078
  *) Make it possible to link applications using Makefile.shared.
     Make that possible even when linking against static libraries!
     [Richard Levitte]

2079 2080 2081 2082 2083
  *) Support for single pass processing for S/MIME signing. This now
     means that S/MIME signing can be done from a pipe, in addition
     cleartext signing (multipart/signed type) is effectively streaming
     and the signed data does not need to be all held in memory.

2084
     This is done with a new flag PKCS7_STREAM. When this flag is set
2085 2086 2087 2088 2089
     PKCS7_sign() only initializes the PKCS7 structure and the actual signing
     is done after the data is output (and digests calculated) in
     SMIME_write_PKCS7().
     [Steve Henson]

2090 2091 2092 2093 2094
  *) Add full support for -rpath/-R, both in shared libraries and
     applications, at least on the platforms where it's known how
     to do it.
     [Richard Levitte]

2095
  *) In crypto/ec/ec_mult.c, implement fast point multiplication with
B
typo  
Bodo Möller 已提交
2096
     precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2097
     will now compute a table of multiples of the generator that
B
typo  
Bodo Möller 已提交
2098
     makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2099 2100 2101 2102
     faster (notably in the case of a single point multiplication,
     scalar * generator).
     [Nils Larsch, Bodo Moeller]

2103 2104 2105 2106 2107 2108
  *) IPv6 support for certificate extensions. The various extensions
     which use the IP:a.b.c.d can now take IPv6 addresses using the
     formats of RFC1884 2.2 . IPv6 addresses are now also displayed
     correctly.
     [Steve Henson]

2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124
  *) Added an ENGINE that implements RSA by performing private key
     exponentiations with the GMP library. The conversions to and from
     GMP's mpz_t format aren't optimised nor are any montgomery forms
     cached, and on x86 it appears OpenSSL's own performance has caught up.
     However there are likely to be other architectures where GMP could
     provide a boost. This ENGINE is not built in by default, but it can be
     specified at Configure time and should be accompanied by the necessary
     linker additions, eg;
         ./config -DOPENSSL_USE_GMP -lgmp
     [Geoff Thorpe]

  *) "openssl engine" will not display ENGINE/DSO load failure errors when
     testing availability of engines with "-t" - the old behaviour is
     produced by increasing the feature's verbosity with "-tt".
     [Geoff Thorpe]

2125 2126 2127 2128 2129 2130
  *) ECDSA routines: under certain error conditions uninitialized BN objects
     could be freed. Solution: make sure initialization is performed early
     enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
     via PR#459)
     [Lutz Jaenicke]

2131 2132 2133 2134 2135 2136
  *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
     and DH_METHOD (eg. by ENGINE implementations) to override the normal
     software implementations. For DSA and DH, parameter generation can
     also be overriden by providing the appropriate method callbacks.
     [Geoff Thorpe]

2137 2138 2139 2140 2141 2142 2143 2144 2145 2146
  *) Change the "progress" mechanism used in key-generation and
     primality testing to functions that take a new BN_GENCB pointer in
     place of callback/argument pairs. The new API functions have "_ex"
     postfixes and the older functions are reimplemented as wrappers for
     the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
     declarations of the old functions to help (graceful) attempts to
     migrate to the new functions. Also, the new key-generation API
     functions operate on a caller-supplied key-structure and return
     success/failure rather than returning a key or NULL - this is to
     help make "keygen" another member function of RSA_METHOD etc.
2147 2148 2149 2150 2151 2152 2153 2154 2155 2156 2157 2158 2159 2160 2161 2162 2163

     Example for using the new callback interface:

          int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
          void *my_arg = ...;
          BN_GENCB my_cb;

          BN_GENCB_set(&my_cb, my_callback, my_arg);

          return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
          /* For the meaning of a, b in calls to my_callback(), see the
           * documentation of the function that calls the callback.
           * cb will point to my_cb; my_arg can be retrieved as cb->arg.
           * my_callback should return 1 if it wants BN_is_prime_ex()
           * to continue, or 0 to stop.
           */

2164 2165
     [Geoff Thorpe]

2166 2167 2168 2169 2170
  *) Change the ZLIB compression method to be stateful, and make it
     available to TLS with the number defined in 
     draft-ietf-tls-compression-04.txt.
     [Richard Levitte]

2171 2172 2173 2174
  *) Add the ASN.1 structures and functions for CertificatePair, which
     is defined as follows (according to X.509_4thEditionDraftV6.pdf):

     CertificatePair ::= SEQUENCE {
2175 2176 2177
        forward		[0]	Certificate OPTIONAL,
        reverse		[1]	Certificate OPTIONAL,
        -- at least one of the pair shall be present -- }
2178 2179 2180 2181 2182 2183 2184 2185 2186

     Also implement the PEM functions to read and write certificate
     pairs, and defined the PEM tag as "CERTIFICATE PAIR".

     This needed to be defined, mostly for the sake of the LDAP
     attribute crossCertificatePair, but may prove useful elsewhere as
     well.
     [Richard Levitte]

2187 2188 2189 2190
  *) Make it possible to inhibit symlinking of shared libraries in
     Makefile.shared, for Cygwin's sake.
     [Richard Levitte]

2191 2192 2193 2194
  *) Extend the BIGNUM API by creating a function 
          void BN_set_negative(BIGNUM *a, int neg);
     and a macro that behave like
          int  BN_is_negative(const BIGNUM *a);
2195

2196 2197
     to avoid the need to access 'a->neg' directly in applications.
     [Nils Larsch]
2198

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2199 2200 2201 2202 2203 2204
  *) Implement fast modular reduction for pseudo-Mersenne primes
     used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
     EC_GROUP_new_curve_GFp() will now automatically use this
     if applicable.
     [Nils Larsch <nla@trustcenter.de>]

B
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2205 2206 2207
  *) Add new lock type (CRYPTO_LOCK_BN).
     [Bodo Moeller]

2208 2209 2210 2211 2212 2213 2214 2215 2216
  *) Change the ENGINE framework to automatically load engines
     dynamically from specific directories unless they could be
     found to already be built in or loaded.  Move all the
     current engines except for the cryptodev one to a new
     directory engines/.
     The engines in engines/ are built as shared libraries if
     the "shared" options was given to ./Configure or ./config.
     Otherwise, they are inserted in libcrypto.a.
     /usr/local/ssl/engines is the default directory for dynamic
2217 2218 2219
     engines, but that can be overriden at configure time through
     the usual use of --prefix and/or --openssldir, and at run
     time with the environment variable OPENSSL_ENGINES.
2220 2221
     [Geoff Thorpe and Richard Levitte]

2222 2223 2224 2225
  *) Add Makefile.shared, a helper makefile to build shared
     libraries.  Addapt Makefile.org.
     [Richard Levitte]

D
 
Dr. Stephen Henson 已提交
2226 2227 2228
  *) Add version info to Win32 DLLs.
     [Peter 'Luna' Runestig" <peter@runestig.com>]

D
 
Dr. Stephen Henson 已提交
2229 2230 2231 2232 2233 2234 2235 2236 2237 2238 2239 2240 2241 2242 2243 2244
  *) Add new 'medium level' PKCS#12 API. Certificates and keys
     can be added using this API to created arbitrary PKCS#12
     files while avoiding the low level API.

     New options to PKCS12_create(), key or cert can be NULL and
     will then be omitted from the output file. The encryption
     algorithm NIDs can be set to -1 for no encryption, the mac
     iteration count can be set to 0 to omit the mac.

     Enhance pkcs12 utility by making the -nokeys and -nocerts
     options work when creating a PKCS#12 file. New option -nomac
     to omit the mac, NONE can be set for an encryption algorithm.
     New code is modified to use the enhanced PKCS12_create()
     instead of the low level API.
     [Steve Henson]

2245 2246 2247 2248 2249 2250 2251 2252 2253 2254 2255
  *) Extend ASN1 encoder to support indefinite length constructed
     encoding. This can output sequences tags and octet strings in
     this form. Modify pk7_asn1.c to support indefinite length
     encoding. This is experimental and needs additional code to
     be useful, such as an ASN1 bio and some enhanced streaming
     PKCS#7 code.

     Extend template encode functionality so that tagging is passed
     down to the template encoder.
     [Steve Henson]

2256 2257 2258 2259
  *) Let 'openssl req' fail if an argument to '-newkey' is not
     recognized instead of using RSA as a default.
     [Bodo Moeller]

B
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2260 2261 2262 2263 2264
  *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
     As these are not official, they are not included in "ALL";
     the "ECCdraft" ciphersuite group alias can be used to select them.
     [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]

B
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2265 2266 2267 2268 2269 2270
  *) Add ECDH engine support.
     [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]

  *) Add ECDH in new directory crypto/ecdh/.
     [Douglas Stebila (Sun Microsystems Laboratories)]

2271 2272 2273 2274
  *) Let BN_rand_range() abort with an error after 100 iterations
     without success (which indicates a broken PRNG).
     [Bodo Moeller]

2275 2276 2277 2278 2279
  *) Change BN_mod_sqrt() so that it verifies that the input value
     is really the square of the return value.  (Previously,
     BN_mod_sqrt would show GIGO behaviour.)
     [Bodo Moeller]

2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293 2294 2295 2296 2297 2298 2299 2300 2301 2302 2303 2304 2305 2306 2307 2308 2309
  *) Add named elliptic curves over binary fields from X9.62, SECG,
     and WAP/WTLS; add OIDs that were still missing.

     [Sheueling Chang Shantz and Douglas Stebila
     (Sun Microsystems Laboratories)]

  *) Extend the EC library for elliptic curves over binary fields
     (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
     New EC_METHOD:

          EC_GF2m_simple_method

     New API functions:

          EC_GROUP_new_curve_GF2m
          EC_GROUP_set_curve_GF2m
          EC_GROUP_get_curve_GF2m
          EC_POINT_set_affine_coordinates_GF2m
          EC_POINT_get_affine_coordinates_GF2m
          EC_POINT_set_compressed_coordinates_GF2m

     Point compression for binary fields is disabled by default for
     patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
     enable it).

     As binary polynomials are represented as BIGNUMs, various members
     of the EC_GROUP and EC_POINT data structures can be shared
     between the implementations for prime fields and binary fields;
     the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
     are essentially identical to their ..._GFp counterparts.
B
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     (For simplicity, the '..._GFp' prefix has been dropped from
     various internal method names.)
2312 2313 2314 2315 2316 2317 2318

     An internal 'field_div' method (similar to 'field_mul' and
     'field_sqr') has been added; this is used only for binary fields.

     [Sheueling Chang Shantz and Douglas Stebila
     (Sun Microsystems Laboratories)]

B
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2319
  *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2320 2321 2322 2323 2324 2325 2326 2327 2328 2329 2330 2331 2332 2333 2334 2335 2336 2337 2338 2339 2340 2341
     through methods ('mul', 'precompute_mult').

     The generic implementations (now internally called 'ec_wNAF_mul'
     and 'ec_wNAF_precomputed_mult') remain the default if these
     methods are undefined.

     [Sheueling Chang Shantz and Douglas Stebila
     (Sun Microsystems Laboratories)]

  *) New function EC_GROUP_get_degree, which is defined through
     EC_METHOD.  For curves over prime fields, this returns the bit
     length of the modulus.

     [Sheueling Chang Shantz and Douglas Stebila
     (Sun Microsystems Laboratories)]

  *) New functions EC_GROUP_dup, EC_POINT_dup.
     (These simply call ..._new  and ..._copy).

     [Sheueling Chang Shantz and Douglas Stebila
     (Sun Microsystems Laboratories)]

2342 2343 2344 2345 2346 2347 2348 2349 2350 2351 2352 2353 2354 2355 2356 2357 2358 2359 2360 2361 2362 2363 2364 2365 2366 2367 2368 2369 2370 2371 2372 2373 2374 2375 2376 2377 2378 2379 2380 2381 2382 2383 2384 2385 2386
  *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
     Polynomials are represented as BIGNUMs (where the sign bit is not
     used) in the following functions [macros]:  

          BN_GF2m_add
          BN_GF2m_sub             [= BN_GF2m_add]
          BN_GF2m_mod             [wrapper for BN_GF2m_mod_arr]
          BN_GF2m_mod_mul         [wrapper for BN_GF2m_mod_mul_arr]
          BN_GF2m_mod_sqr         [wrapper for BN_GF2m_mod_sqr_arr]
          BN_GF2m_mod_inv
          BN_GF2m_mod_exp         [wrapper for BN_GF2m_mod_exp_arr]
          BN_GF2m_mod_sqrt        [wrapper for BN_GF2m_mod_sqrt_arr]
          BN_GF2m_mod_solve_quad  [wrapper for BN_GF2m_mod_solve_quad_arr]
          BN_GF2m_cmp             [= BN_ucmp]

     (Note that only the 'mod' functions are actually for fields GF(2^m).
     BN_GF2m_add() is misnomer, but this is for the sake of consistency.)

     For some functions, an the irreducible polynomial defining a
     field can be given as an 'unsigned int[]' with strictly
     decreasing elements giving the indices of those bits that are set;
     i.e., p[] represents the polynomial
          f(t) = t^p[0] + t^p[1] + ... + t^p[k]
     where
          p[0] > p[1] > ... > p[k] = 0.
     This applies to the following functions:

          BN_GF2m_mod_arr
          BN_GF2m_mod_mul_arr
          BN_GF2m_mod_sqr_arr
          BN_GF2m_mod_inv_arr        [wrapper for BN_GF2m_mod_inv]
          BN_GF2m_mod_div_arr        [wrapper for BN_GF2m_mod_div]
          BN_GF2m_mod_exp_arr
          BN_GF2m_mod_sqrt_arr
          BN_GF2m_mod_solve_quad_arr
          BN_GF2m_poly2arr
          BN_GF2m_arr2poly

     Conversion can be performed by the following functions:

          BN_GF2m_poly2arr
          BN_GF2m_arr2poly

     bntest.c has additional tests for binary polynomial arithmetic.

2387 2388 2389 2390 2391
     Two implementations for BN_GF2m_mod_div() are available.
     The default algorithm simply uses BN_GF2m_mod_inv() and
     BN_GF2m_mod_mul().  The alternative algorithm is compiled in only
     if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
     copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2392 2393 2394 2395

     [Sheueling Chang Shantz and Douglas Stebila
     (Sun Microsystems Laboratories)]

2396 2397 2398 2399
  *) Add new error code 'ERR_R_DISABLED' that can be used when some
     functionality is disabled at compile-time.
     [Douglas Stebila <douglas.stebila@sun.com>]

2400 2401 2402 2403 2404 2405 2406 2407 2408
  *) Change default behaviour of 'openssl asn1parse' so that more
     information is visible when viewing, e.g., a certificate:

     Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
     mode the content of non-printable OCTET STRINGs is output in a
     style similar to INTEGERs, but with '[HEX DUMP]' prepended to
     avoid the appearance of a printable string.
     [Nils Larsch <nla@trustcenter.de>]

B
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2409 2410 2411 2412 2413 2414 2415
  *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
     functions
          EC_GROUP_set_asn1_flag()
          EC_GROUP_get_asn1_flag()
          EC_GROUP_set_point_conversion_form()
          EC_GROUP_get_point_conversion_form()
     These control ASN1 encoding details:
B
typo  
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2416 2417
     - Curves (i.e., groups) are encoded explicitly unless asn1_flag
       has been set to OPENSSL_EC_NAMED_CURVE.
2418
     - Points are encoded in uncompressed form by default; options for
B
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2419 2420 2421 2422
       asn1_for are as for point2oct, namely
          POINT_CONVERSION_COMPRESSED
          POINT_CONVERSION_UNCOMPRESSED
          POINT_CONVERSION_HYBRID
2423 2424 2425 2426 2427 2428 2429

     Also add 'seed' and 'seed_len' members to EC_GROUP with access
     functions
          EC_GROUP_set_seed()
          EC_GROUP_get0_seed()
          EC_GROUP_get_seed_len()
     This is used only for ASN1 purposes (so far).
2430 2431 2432 2433 2434 2435 2436
     [Nils Larsch <nla@trustcenter.de>]

  *) Add 'field_type' member to EC_METHOD, which holds the NID
     of the appropriate field type OID.  The new function
     EC_METHOD_get_field_type() returns this value.
     [Nils Larsch <nla@trustcenter.de>]

2437 2438 2439 2440 2441 2442 2443 2444 2445
  *) Add functions 
          EC_POINT_point2bn()
          EC_POINT_bn2point()
          EC_POINT_point2hex()
          EC_POINT_hex2point()
     providing useful interfaces to EC_POINT_point2oct() and
     EC_POINT_oct2point().
     [Nils Larsch <nla@trustcenter.de>]

2446 2447 2448 2449 2450 2451 2452 2453
  *) Change internals of the EC library so that the functions
          EC_GROUP_set_generator()
          EC_GROUP_get_generator()
          EC_GROUP_get_order()
          EC_GROUP_get_cofactor()
     are implemented directly in crypto/ec/ec_lib.c and not dispatched
     to methods, which would lead to unnecessary code duplication when
     adding different types of curves.
2454
     [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2455

B
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2456 2457 2458 2459 2460
  *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
     arithmetic, and such that modified wNAFs are generated
     (which avoid length expansion in many cases).
     [Bodo Moeller]

2461 2462 2463 2464 2465 2466 2467 2468
  *) Add a function EC_GROUP_check_discriminant() (defined via
     EC_METHOD) that verifies that the curve discriminant is non-zero.

     Add a function EC_GROUP_check() that makes some sanity tests
     on a EC_GROUP, its generator and order.  This includes
     EC_GROUP_check_discriminant().
     [Nils Larsch <nla@trustcenter.de>]

B
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2469 2470
  *) Add ECDSA in new directory crypto/ecdsa/.

2471 2472
     Add applications 'openssl ecparam' and 'openssl ecdsa'
     (these are based on 'openssl dsaparam' and 'openssl dsa').
B
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2473 2474 2475 2476 2477 2478 2479 2480

     ECDSA support is also included in various other files across the
     library.  Most notably,
     - 'openssl req' now has a '-newkey ecdsa:file' option;
     - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
     - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
       d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
       them suitable for ECDSA where domain parameters must be
B
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2481 2482
       extracted before the specific public key;
     - ECDSA engine support has been added.
B
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2483
     [Nils Larsch <nla@trustcenter.de>]
B
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2484

B
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2485
  *) Include some named elliptic curves, and add OIDs from X9.62,
B
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2486
     SECG, and WAP/WTLS.  Each curve can be obtained from the new
2487
     function
2488
          EC_GROUP_new_by_curve_name(),
B
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2489 2490
     and the list of available named curves can be obtained with
          EC_get_builtin_curves().
B
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2491 2492
     Also add a 'curve_name' member to EC_GROUP objects, which can be
     accessed via
2493 2494
         EC_GROUP_set_curve_name()
         EC_GROUP_get_curve_name()
2495
     [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
B
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2496
 
B
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2497 2498 2499 2500 2501 2502 2503 2504 2505
  *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
     was actually never needed) and in BN_mul().  The removal in BN_mul()
     required a small change in bn_mul_part_recursive() and the addition
     of the functions bn_cmp_part_words(), bn_sub_part_words() and
     bn_add_part_words(), which do the same thing as bn_cmp_words(),
     bn_sub_words() and bn_add_words() except they take arrays with
     differing sizes.
     [Richard Levitte]

B
Bodo Möller 已提交
2506
 Changes between 0.9.7l and 0.9.7m  [23 Feb 2007]
2507

D
Dr. Stephen Henson 已提交
2508 2509 2510 2511
  *) Cleanse PEM buffers before freeing them since they may contain 
     sensitive data.
     [Benjamin Bennett <ben@psc.edu>]

2512 2513 2514 2515 2516
  *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
     a ciphersuite string such as "DEFAULT:RSA" cannot enable
     authentication-only ciphersuites.
     [Bodo Moeller]

2517 2518 2519 2520 2521
  *) Since AES128 and AES256 share a single mask bit in the logic of
     ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
     kludge to work properly if AES128 is available and AES256 isn't.
     [Victor Duchovni]

B
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2522 2523 2524 2525 2526 2527 2528 2529 2530 2531 2532 2533 2534 2535
  *) Expand security boundary to match 1.1.1 module.
     [Steve Henson]

  *) Remove redundant features: hash file source, editing of test vectors
     modify fipsld to use external fips_premain.c signature.
     [Steve Henson]

  *) New perl script mkfipsscr.pl to create shell scripts or batch files to
     run algorithm test programs.
     [Steve Henson]

  *) Make algorithm test programs more tolerant of whitespace.
     [Steve Henson]

2536 2537 2538 2539 2540 2541 2542 2543 2544 2545 2546
  *) Have SSL/TLS server implementation tolerate "mismatched" record
     protocol version while receiving ClientHello even if the
     ClientHello is fragmented.  (The server can't insist on the
     particular protocol version it has chosen before the ServerHello
     message has informed the client about his choice.)
     [Bodo Moeller]

  *) Load error codes if they are not already present instead of using a
     static variable. This allows them to be cleanly unloaded and reloaded.
     [Steve Henson]

2547 2548 2549 2550 2551 2552 2553 2554 2555 2556 2557 2558 2559 2560 2561
 Changes between 0.9.7k and 0.9.7l  [28 Sep 2006]

  *) Introduce limits to prevent malicious keys being able to
     cause a denial of service.  (CVE-2006-2940)
     [Steve Henson, Bodo Moeller]

  *) Fix ASN.1 parsing of certain invalid structures that can result
     in a denial of service.  (CVE-2006-2937)  [Steve Henson]

  *) Fix buffer overflow in SSL_get_shared_ciphers() function. 
     (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]

  *) Fix SSL client code which could crash if connecting to a
     malicious SSLv2 server.  (CVE-2006-4343)
     [Tavis Ormandy and Will Drewry, Google Security Team]
B
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2562 2563 2564 2565 2566 2567 2568 2569 2570 2571

  *) Change ciphersuite string processing so that an explicit
     ciphersuite selects this one ciphersuite (so that "AES256-SHA"
     will no longer include "AES128-SHA"), and any other similar
     ciphersuite (same bitmap) from *other* protocol versions (so that
     "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
     SSL 3.0/TLS 1.0 ciphersuite).  This is a backport combining
     changes from 0.9.8b and 0.9.8d.
     [Bodo Moeller]

2572 2573 2574 2575
 Changes between 0.9.7j and 0.9.7k  [05 Sep 2006]

  *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
     (CVE-2006-4339)  [Ben Laurie and Google Security Team]
B
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2576

2577 2578 2579
  *) Change the Unix randomness entropy gathering to use poll() when
     possible instead of select(), since the latter has some
     undesirable limitations.
2580
     [Darryl Miles via Richard Levitte and Bodo Moeller]
2581

B
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2582 2583 2584 2585 2586 2587 2588 2589 2590 2591 2592 2593 2594 2595 2596
  *) Disable rogue ciphersuites:

      - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
      - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
      - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")

     The latter two were purportedly from
     draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
     appear there.

     Also deactive the remaining ciphersuites from
     draft-ietf-tls-56-bit-ciphersuites-01.txt.  These are just as
     unofficial, and the ID has long expired.
     [Bodo Moeller]

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2597 2598 2599 2600 2601 2602 2603 2604 2605 2606 2607 2608 2609 2610 2611 2612 2613 2614 2615
  *) Fix RSA blinding Heisenbug (problems sometimes occured on
     dual-core machines) and other potential thread-safety issues.
     [Bodo Moeller]

 Changes between 0.9.7i and 0.9.7j  [04 May 2006]

  *) Adapt fipsld and the build system to link against the validated FIPS
     module in FIPS mode.
     [Steve Henson]

  *) Fixes for VC++ 2005 build under Windows.
     [Steve Henson]

  *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make 
     from a Windows bash shell such as MSYS. It is autodetected from the
     "config" script when run from a VC++ environment. Modify standard VC++
     build to use fipscanister.o from the GNU make build. 
     [Steve Henson]

R
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2616 2617 2618 2619 2620 2621 2622 2623 2624
 Changes between 0.9.7h and 0.9.7i  [14 Oct 2005]

  *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
     The value now differs depending on if you build for FIPS or not.
     BEWARE!  A program linked with a shared FIPSed libcrypto can't be
     safely run with a non-FIPSed libcrypto, as it may crash because of
     the difference induced by this change.
     [Andy Polyakov]

2625 2626 2627 2628 2629 2630
 Changes between 0.9.7g and 0.9.7h  [11 Oct 2005]

  *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
     (part of SSL_OP_ALL).  This option used to disable the
     countermeasure against man-in-the-middle protocol-version
     rollback in the SSL 2.0 server implementation, which is a bad
M
Mark J. Cox 已提交
2631
     idea.  (CVE-2005-2969)
2632 2633 2634 2635

     [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
     for Information Security, National Institute of Advanced Industrial
     Science and Technology [AIST], Japan)]
2636

D
Dr. Stephen Henson 已提交
2637
  *) Minimal support for X9.31 signatures and PSS padding modes. This is
D
Typo.  
Dr. Stephen Henson 已提交
2638
     mainly for FIPS compliance and not fully integrated at this stage.
D
Dr. Stephen Henson 已提交
2639 2640
     [Steve Henson]

2641 2642 2643 2644 2645 2646 2647
  *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
     the exponentiation using a fixed-length exponent.  (Otherwise,
     the information leaked through timing could expose the secret key
     after many signatures; cf. Bleichenbacher's attack on DSA with
     biased k.)
     [Bodo Moeller]

2648
  *) Make a new fixed-window mod_exp implementation the default for
2649 2650 2651 2652
     RSA, DSA, and DH private-key operations so that the sequence of
     squares and multiplies and the memory access pattern are
     independent of the particular secret key.  This will mitigate
     cache-timing and potential related attacks.
2653 2654 2655

     BN_mod_exp_mont_consttime() is the new exponentiation implementation,
     and this is automatically used by BN_mod_exp_mont() if the new flag
2656
     BN_FLG_EXP_CONSTTIME is set for the exponent.  RSA, DSA, and DH
2657 2658 2659 2660 2661 2662
     will use this BN flag for private exponents unless the flag
     RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
     DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.

     [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]

2663 2664 2665 2666 2667 2668 2669
  *) Change the client implementation for SSLv23_method() and
     SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
     Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
     (Previously, the SSL 2.0 backwards compatible Client Hello
     message format would be used even with SSL_OP_NO_SSLv2.)
     [Bodo Moeller]

2670 2671 2672 2673
  *) Add support for smime-type MIME parameter in S/MIME messages which some
     clients need.
     [Steve Henson]

2674 2675 2676 2677 2678
  *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
     a threadsafe manner. Modify rsa code to use new function and add calls
     to dsa and dh code (which had race conditions before).
     [Steve Henson]

2679 2680 2681 2682 2683 2684
  *) Include the fixed error library code in the C error file definitions
     instead of fixing them up at runtime. This keeps the error code
     structures constant.
     [Steve Henson]

 Changes between 0.9.7f and 0.9.7g  [11 Apr 2005]
U
Ulf Möller 已提交
2685

2686 2687 2688
  [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
  OpenSSL 0.9.8.]

2689 2690 2691 2692 2693 2694 2695 2696
  *) Fixes for newer kerberos headers. NB: the casts are needed because
     the 'length' field is signed on one version and unsigned on another
     with no (?) obvious way to tell the difference, without these VC++
     complains. Also the "definition" of FAR (blank) is no longer included
     nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
     some needed definitions.
     [Steve Henson]

U
Ulf Möller 已提交
2697 2698 2699
  *) Undo Cygwin change.
     [Ulf Möller]

2700 2701 2702 2703 2704 2705
  *) Added support for proxy certificates according to RFC 3820.
     Because they may be a security thread to unaware applications,
     they must be explicitely allowed in run-time.  See
     docs/HOWTO/proxy_certificates.txt for further information.
     [Richard Levitte]

2706
 Changes between 0.9.7e and 0.9.7f  [22 Mar 2005]
R
Richard Levitte 已提交
2707

2708 2709 2710 2711 2712 2713 2714 2715 2716 2717 2718 2719 2720 2721 2722 2723 2724 2725 2726 2727 2728 2729
  *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
     server and client random values. Previously
     (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
     less random data when sizeof(time_t) > 4 (some 64 bit platforms).

     This change has negligible security impact because:

     1. Server and client random values still have 24 bytes of pseudo random
        data.

     2. Server and client random values are sent in the clear in the initial
        handshake.

     3. The master secret is derived using the premaster secret (48 bytes in
        size for static RSA ciphersuites) as well as client server and random
        values.

     The OpenSSL team would like to thank the UK NISCC for bringing this issue
     to our attention. 

     [Stephen Henson, reported by UK NISCC]

2730 2731 2732
  *) Use Windows randomness collection on Cygwin.
     [Ulf Möller]

2733 2734 2735 2736
  *) Fix hang in EGD/PRNGD query when communication socket is closed
     prematurely by EGD/PRNGD.
     [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]

2737 2738 2739
  *) Prompt for pass phrases when appropriate for PKCS12 input format.
     [Steve Henson]

2740 2741 2742 2743
  *) Back-port of selected performance improvements from development
     branch, as well as improved support for PowerPC platforms.
     [Andy Polyakov]

2744 2745 2746 2747
  *) Add lots of checks for memory allocation failure, error codes to indicate
     failure and freeing up memory if a failure occurs.
     [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]

2748 2749 2750
  *) Add new -passin argument to dgst.
     [Steve Henson]

2751 2752 2753 2754 2755 2756
  *) Perform some character comparisons of different types in X509_NAME_cmp:
     this is needed for some certificates that reencode DNs into UTF8Strings
     (in violation of RFC3280) and can't or wont issue name rollover
     certificates.
     [Steve Henson]

R
Richard Levitte 已提交
2757 2758 2759 2760 2761 2762 2763 2764 2765 2766 2767 2768 2769
  *) Make an explicit check during certificate validation to see that
     the CA setting in each certificate on the chain is correct.  As a
     side effect always do the following basic checks on extensions,
     not just when there's an associated purpose to the check:

      - if there is an unhandled critical extension (unless the user
        has chosen to ignore this fault)
      - if the path length has been exceeded (if one is set at all)
      - that certain extensions fit the associated purpose (if one has
        been given)
     [Richard Levitte]

 Changes between 0.9.7d and 0.9.7e  [25 Oct 2004]
2770

2771 2772 2773 2774 2775 2776 2777
  *) Avoid a race condition when CRLs are checked in a multi threaded 
     environment. This would happen due to the reordering of the revoked
     entries during signature checking and serial number lookup. Now the
     encoding is cached and the serial number sort performed under a lock.
     Add new STACK function sk_is_sorted().
     [Steve Henson]

2778 2779 2780
  *) Add Delta CRL to the extension code.
     [Steve Henson]

2781 2782 2783
  *) Various fixes to s3_pkt.c so alerts are sent properly.
     [David Holmes <d.holmes@f5.com>]

2784 2785 2786 2787 2788 2789 2790 2791 2792 2793 2794 2795
  *) Reduce the chances of duplicate issuer name and serial numbers (in
     violation of RFC3280) using the OpenSSL certificate creation utilities.
     This is done by creating a random 64 bit value for the initial serial
     number when a serial number file is created or when a self signed
     certificate is created using 'openssl req -x509'. The initial serial
     number file is created using 'openssl x509 -next_serial' in CA.pl
     rather than being initialized to 1.
     [Steve Henson]

 Changes between 0.9.7c and 0.9.7d  [17 Mar 2004]

  *) Fix null-pointer assignment in do_change_cipher_spec() revealed           
M
Mark J. Cox 已提交
2796
     by using the Codenomicon TLS Test Tool (CVE-2004-0079)                    
2797 2798 2799
     [Joe Orton, Steve Henson]   

  *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
M
Mark J. Cox 已提交
2800
     (CVE-2004-0112)
2801 2802 2803 2804 2805 2806 2807 2808 2809
     [Joe Orton, Steve Henson]   

  *) Make it possible to have multiple active certificates with the same
     subject in the CA index file.  This is done only if the keyword
     'unique_subject' is set to 'no' in the main CA section (default
     if 'CA_default') of the configuration file.  The value is saved
     with the database itself in a separate index attribute file,
     named like the index file with '.attr' appended to the name.
     [Richard Levitte]
2810

2811 2812 2813 2814 2815 2816 2817 2818
  *) X509 verify fixes. Disable broken certificate workarounds when 
     X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
     keyUsage extension present. Don't accept CRLs with unhandled critical
     extensions: since verify currently doesn't process CRL extensions this
     rejects a CRL with *any* critical extensions. Add new verify error codes
     for these cases.
     [Steve Henson]

2819 2820 2821 2822 2823 2824 2825
  *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
     A clarification of RFC2560 will require the use of OCTET STRINGs and 
     some implementations cannot handle the current raw format. Since OpenSSL
     copies and compares OCSP nonces as opaque blobs without any attempt at
     parsing them this should not create any compatibility issues.
     [Steve Henson]

2826 2827 2828 2829 2830 2831
  *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
     calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
     this HMAC (and other) operations are several times slower than OpenSSL
     < 0.9.7.
     [Steve Henson]

2832 2833 2834
  *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
     [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]

2835 2836 2837
  *) Use the correct content when signing type "other".
     [Steve Henson]

2838 2839 2840 2841 2842
 Changes between 0.9.7b and 0.9.7c  [30 Sep 2003]

  *) Fix various bugs revealed by running the NISCC test suite:

     Stop out of bounds reads in the ASN1 code when presented with
M
Mark J. Cox 已提交
2843
     invalid tags (CVE-2003-0543 and CVE-2003-0544).
2844
     
M
Mark J. Cox 已提交
2845
     Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2846 2847 2848 2849 2850

     If verify callback ignores invalid public key errors don't try to check
     certificate signature with the NULL public key.

     [Steve Henson]
2851

2852 2853 2854 2855
  *) New -ignore_err option in ocsp application to stop the server
     exiting on the first error in a request.
     [Steve Henson]

2856 2857 2858 2859 2860
  *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
     if the server requested one: as stated in TLS 1.0 and SSL 3.0
     specifications.
     [Steve Henson]

2861 2862 2863 2864 2865 2866 2867 2868 2869
  *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
     extra data after the compression methods not only for TLS 1.0
     but also for SSL 3.0 (as required by the specification).
     [Bodo Moeller; problem pointed out by Matthias Loepfe]

  *) Change X509_certificate_type() to mark the key as exported/exportable
     when it's 512 *bits* long, not 512 bytes.
     [Richard Levitte]

2870 2871 2872 2873
  *) Change AES_cbc_encrypt() so it outputs exact multiple of
     blocks during encryption.
     [Richard Levitte]

2874 2875 2876 2877 2878 2879 2880
  *) Various fixes to base64 BIO and non blocking I/O. On write 
     flushes were not handled properly if the BIO retried. On read
     data was not being buffered properly and had various logic bugs.
     This also affects blocking I/O when the data being decoded is a
     certain size.
     [Steve Henson]

2881 2882 2883 2884 2885 2886 2887 2888 2889
  *) Various S/MIME bugfixes and compatibility changes:
     output correct application/pkcs7 MIME type if
     PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
     Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
     of files as .eml work). Correctly handle very long lines in MIME
     parser.
     [Steve Henson]

 Changes between 0.9.7a and 0.9.7b  [10 Apr 2003]
2890

2891 2892 2893 2894 2895 2896
  *) Countermeasure against the Klima-Pokorny-Rosa extension of
     Bleichbacher's attack on PKCS #1 v1.5 padding: treat
     a protocol version number mismatch like a decryption error
     in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
     [Bodo Moeller]

2897 2898 2899 2900
  *) Turn on RSA blinding by default in the default implementation
     to avoid a timing attack. Applications that don't want it can call
     RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
     They would be ill-advised to do so in most cases.
B
Bodo Möller 已提交
2901
     [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2902 2903 2904 2905

  *) Change RSA blinding code so that it works when the PRNG is not
     seeded (in this case, the secret RSA exponent is abused as
     an unpredictable seed -- if it is not unpredictable, there
B
Bodo Möller 已提交
2906 2907 2908 2909 2910 2911
     is no point in blinding anyway).  Make RSA blinding thread-safe
     by remembering the creator's thread ID in rsa->blinding and
     having all other threads use local one-time blinding factors
     (this requires more computation than sharing rsa->blinding, but
     avoids excessive locking; and if an RSA object is not shared
     between threads, blinding will still be very fast).
2912 2913
     [Bodo Moeller]

2914 2915 2916 2917 2918 2919
  *) Fixed a typo bug that would cause ENGINE_set_default() to set an
     ENGINE as defaults for all supported algorithms irrespective of
     the 'flags' parameter. 'flags' is now honoured, so applications
     should make sure they are passing it correctly.
     [Geoff Thorpe]

2920 2921 2922
  *) Target "mingw" now allows native Windows code to be generated in
     the Cygwin environment as well as with the MinGW compiler.
     [Ulf Moeller] 
2923

2924 2925 2926 2927 2928 2929
 Changes between 0.9.7 and 0.9.7a  [19 Feb 2003]

  *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
     via timing by performing a MAC computation even if incorrrect
     block cipher padding has been found.  This is a countermeasure
     against active attacks where the attacker has to distinguish
M
Mark J. Cox 已提交
2930
     between bad padding and a MAC verification error. (CVE-2003-0078)
2931 2932 2933 2934

     [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
     Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
     Martin Vuagnoux (EPFL, Ilion)]
2935

2936 2937 2938 2939 2940 2941 2942 2943 2944 2945 2946
  *) Make the no-err option work as intended.  The intention with no-err
     is not to have the whole error stack handling routines removed from
     libcrypto, it's only intended to remove all the function name and
     reason texts, thereby removing some of the footprint that may not
     be interesting if those errors aren't displayed anyway.

     NOTE: it's still possible for any application or module to have it's
     own set of error texts inserted.  The routines are there, just not
     used by default when no-err is given.
     [Richard Levitte]

R
Richard Levitte 已提交
2947 2948 2949
  *) Add support for FreeBSD on IA64.
     [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]

2950 2951 2952 2953 2954 2955
  *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
     Kerberos function mit_des_cbc_cksum().  Before this change,
     the value returned by DES_cbc_cksum() was like the one from
     mit_des_cbc_cksum(), except the bytes were swapped.
     [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]

2956 2957 2958 2959 2960 2961 2962 2963 2964 2965 2966 2967 2968 2969 2970 2971 2972 2973
  *) Allow an application to disable the automatic SSL chain building.
     Before this a rather primitive chain build was always performed in
     ssl3_output_cert_chain(): an application had no way to send the 
     correct chain if the automatic operation produced an incorrect result.

     Now the chain builder is disabled if either:

     1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().

     2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.

     The reasoning behind this is that an application would not want the
     auto chain building to take place if extra chain certificates are
     present and it might also want a means of sending no additional
     certificates (for example the chain has two certificates and the
     root is omitted).
     [Steve Henson]

2974 2975 2976
  *) Add the possibility to build without the ENGINE framework.
     [Steven Reddie <smr@essemer.com.au> via Richard Levitte]

2977 2978 2979 2980
  *) Under Win32 gmtime() can return NULL: check return value in
     OPENSSL_gmtime(). Add error code for case where gmtime() fails.
     [Steve Henson]

2981 2982 2983 2984 2985 2986
  *) DSA routines: under certain error conditions uninitialized BN objects
     could be freed. Solution: make sure initialization is performed early
     enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
     Nils Larsch <nla@trustcenter.de> via PR#459)
     [Lutz Jaenicke]

2987 2988 2989 2990 2991 2992 2993 2994 2995
  *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
     checked on reconnect on the client side, therefore session resumption
     could still fail with a "ssl session id is different" error. This
     behaviour is masked when SSL_OP_ALL is used due to
     SSL_OP_MICROSOFT_SESS_ID_BUG being set.
     Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
     followup to PR #377.
     [Lutz Jaenicke]

R
Richard Levitte 已提交
2996 2997 2998 2999
  *) IA-32 assembler support enhancements: unified ELF targets, support
     for SCO/Caldera platforms, fix for Cygwin shared build.
     [Andy Polyakov]

3000 3001 3002 3003
  *) Add support for FreeBSD on sparc64.  As a consequence, support for
     FreeBSD on non-x86 processors is separate from x86 processors on
     the config script, much like the NetBSD support.
     [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3004

3005
 Changes between 0.9.6h and 0.9.7  [31 Dec 2002]
3006

3007 3008 3009
  [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
  OpenSSL 0.9.7.]

3010 3011 3012 3013 3014 3015 3016 3017 3018
  *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
     code (06) was taken as the first octet of the session ID and the last
     octet was ignored consequently. As a result SSLv2 client side session
     caching could not have worked due to the session ID mismatch between
     client and server.
     Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
     PR #377.
     [Lutz Jaenicke]

3019 3020 3021 3022 3023
  *) Change the declaration of needed Kerberos libraries to use EX_LIBS
     instead of the special (and badly supported) LIBKRB5.  LIBKRB5 is
     removed entirely.
     [Richard Levitte]

3024
  *) The hw_ncipher.c engine requires dynamic locks.  Unfortunately, it
3025 3026
     seems that in spite of existing for more than a year, many application
     author have done nothing to provide the necessary callbacks, which
3027 3028 3029 3030 3031 3032 3033 3034 3035 3036 3037
     means that this particular engine will not work properly anywhere.
     This is a very unfortunate situation which forces us, in the name
     of usability, to give the hw_ncipher.c a static lock, which is part
     of libcrypto.
     NOTE: This is for the 0.9.7 series ONLY.  This hack will never
     appear in 0.9.8 or later.  We EXPECT application authors to have
     dealt properly with this when 0.9.8 is released (unless we actually
     make such changes in the libcrypto locking code that changes will
     have to be made anyway).
     [Richard Levitte]

3038 3039 3040 3041 3042
  *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
     octets have been read, EOF or an error occurs. Without this change
     some truncated ASN1 structures will not produce an error.
     [Steve Henson]

3043 3044 3045 3046 3047
  *) Disable Heimdal support, since it hasn't been fully implemented.
     Still give the possibility to force the use of Heimdal, but with
     warnings and a request that patches get sent to openssl-dev.
     [Richard Levitte]

R
Richard Levitte 已提交
3048 3049 3050 3051
  *) Add the VC-CE target, introduce the WINCE sysname, and add
     INSTALL.WCE and appropriate conditionals to make it build.
     [Steven Reddie <smr@essemer.com.au> via Richard Levitte]

3052 3053 3054 3055 3056
  *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
     cygssl-x.y.z.dll, where x, y and z are the major, minor and
     edit numbers of the version.
     [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]

3057 3058 3059 3060 3061 3062 3063 3064 3065 3066 3067 3068 3069 3070 3071 3072 3073 3074 3075 3076 3077 3078 3079 3080 3081 3082 3083 3084 3085 3086 3087 3088 3089 3090 3091 3092 3093 3094 3095 3096 3097 3098 3099 3100 3101 3102 3103 3104 3105 3106 3107 3108 3109 3110
  *) Introduce safe string copy and catenation functions
     (BUF_strlcpy() and BUF_strlcat()).
     [Ben Laurie (CHATS) and Richard Levitte]

  *) Avoid using fixed-size buffers for one-line DNs.
     [Ben Laurie (CHATS)]

  *) Add BUF_MEM_grow_clean() to avoid information leakage when
     resizing buffers containing secrets, and use where appropriate.
     [Ben Laurie (CHATS)]

  *) Avoid using fixed size buffers for configuration file location.
     [Ben Laurie (CHATS)]

  *) Avoid filename truncation for various CA files.
     [Ben Laurie (CHATS)]

  *) Use sizeof in preference to magic numbers.
     [Ben Laurie (CHATS)]

  *) Avoid filename truncation in cert requests.
     [Ben Laurie (CHATS)]

  *) Add assertions to check for (supposedly impossible) buffer
     overflows.
     [Ben Laurie (CHATS)]

  *) Don't cache truncated DNS entries in the local cache (this could
     potentially lead to a spoofing attack).
     [Ben Laurie (CHATS)]

  *) Fix various buffers to be large enough for hex/decimal
     representations in a platform independent manner.
     [Ben Laurie (CHATS)]

  *) Add CRYPTO_realloc_clean() to avoid information leakage when
     resizing buffers containing secrets, and use where appropriate.
     [Ben Laurie (CHATS)]

  *) Add BIO_indent() to avoid much slightly worrying code to do
     indents.
     [Ben Laurie (CHATS)]

  *) Convert sprintf()/BIO_puts() to BIO_printf().
     [Ben Laurie (CHATS)]

  *) buffer_gets() could terminate with the buffer only half
     full. Fixed.
     [Ben Laurie (CHATS)]

  *) Add assertions to prevent user-supplied crypto functions from
     overflowing internal buffers by having large block sizes, etc.
     [Ben Laurie (CHATS)]

B
Bodo Möller 已提交
3111 3112 3113 3114
  *) New OPENSSL_assert() macro (similar to assert(), but enabled
     unconditionally).
     [Ben Laurie (CHATS)]

3115 3116 3117 3118 3119 3120 3121 3122 3123 3124 3125 3126 3127 3128 3129 3130 3131 3132 3133 3134 3135 3136 3137 3138 3139 3140 3141
  *) Eliminate unused copy of key in RC4.
     [Ben Laurie (CHATS)]

  *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
     [Ben Laurie (CHATS)]

  *) Fix off-by-one error in EGD path.
     [Ben Laurie (CHATS)]

  *) If RANDFILE path is too long, ignore instead of truncating.
     [Ben Laurie (CHATS)]

  *) Eliminate unused and incorrectly sized X.509 structure
     CBCParameter.
     [Ben Laurie (CHATS)]

  *) Eliminate unused and dangerous function knumber().
     [Ben Laurie (CHATS)]

  *) Eliminate unused and dangerous structure, KSSL_ERR.
     [Ben Laurie (CHATS)]

  *) Protect against overlong session ID context length in an encoded
     session object. Since these are local, this does not appear to be
     exploitable.
     [Ben Laurie (CHATS)]

3142 3143 3144 3145 3146
  *) Change from security patch (see 0.9.6e below) that did not affect
     the 0.9.6 release series:

     Remote buffer overflow in SSL3 protocol - an attacker could
     supply an oversized master key in Kerberos-enabled versions.
M
Mark J. Cox 已提交
3147
     (CVE-2002-0657)
3148
     [Ben Laurie (CHATS)]
D
 
Dr. Stephen Henson 已提交
3149

3150 3151 3152
  *) Change the SSL kerb5 codes to match RFC 2712.
     [Richard Levitte]

3153 3154 3155
  *) Make -nameopt work fully for req and add -reqopt switch.
     [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]

3156 3157 3158
  *) The "block size" for block ciphers in CFB and OFB mode should be 1.
     [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]

3159 3160 3161 3162 3163
  *) Make sure tests can be performed even if the corresponding algorithms
     have been removed entirely.  This was also the last step to make
     OpenSSL compilable with DJGPP under all reasonable conditions.
     [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]

B
Bodo Möller 已提交
3164
  *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3165 3166
     to allow version independent disabling of normally unselected ciphers,
     which may be activated as a side-effect of selecting a single cipher.
B
Bodo Möller 已提交
3167 3168 3169 3170

     (E.g., cipher list string "RSA" enables ciphersuites that are left
     out of "ALL" because they do not provide symmetric encryption.
     "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3171 3172
     [Lutz Jaenicke, Bodo Moeller]

3173 3174 3175 3176 3177 3178 3179 3180
  *) Add appropriate support for separate platform-dependent build
     directories.  The recommended way to make a platform-dependent
     build directory is the following (tested on Linux), maybe with
     some local tweaks:

	# Place yourself outside of the OpenSSL source tree.  In
	# this example, the environment variable OPENSSL_SOURCE
	# is assumed to contain the absolute OpenSSL source directory.
3181 3182
	mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
	cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3183
	(cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3184 3185 3186 3187 3188 3189 3190 3191 3192
		mkdir -p `dirname $F`
		ln -s $OPENSSL_SOURCE/$F $F
	done

     To be absolutely sure not to disturb the source tree, a "make clean"
     is a good thing.  If it isn't successfull, don't worry about it,
     it probably means the source directory is very clean.
     [Richard Levitte]

3193 3194 3195 3196 3197 3198
  *) Make sure any ENGINE control commands make local copies of string
     pointers passed to them whenever necessary. Otherwise it is possible
     the caller may have overwritten (or deallocated) the original string
     data when a later ENGINE operation tries to use the stored values.
     [Götz Babin-Ebell <babinebell@trustcenter.de>]

B
Ben Laurie 已提交
3199 3200 3201
  *) Improve diagnostics in file reading and command-line digests.
     [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]

R
Richard Levitte 已提交
3202 3203 3204 3205
  *) Add AES modes CFB and OFB to the object database.  Correct an
     error in AES-CFB decryption.
     [Richard Levitte]

D
 
Dr. Stephen Henson 已提交
3206 3207 3208 3209 3210 3211 3212 3213
  *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this 
     allows existing EVP_CIPHER_CTX structures to be reused after
     calling EVP_*Final(). This behaviour is used by encryption
     BIOs and some applications. This has the side effect that
     applications must explicitly clean up cipher contexts with
     EVP_CIPHER_CTX_cleanup() or they will leak memory.
     [Steve Henson]

D
 
Dr. Stephen Henson 已提交
3214 3215 3216 3217
  *) Check the values of dna and dnb in bn_mul_recursive before calling
     bn_mul_comba (a non zero value means the a or b arrays do not contain
     n2 elements) and fallback to bn_mul_normal if either is not zero.
     [Steve Henson]
B
Bodo Möller 已提交
3218

3219 3220 3221 3222
  *) Fix escaping of non-ASCII characters when using the -subj option
     of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
     [Lutz Jaenicke]

3223
  *) Make object definitions compliant to LDAP (RFC2256): SN is the short
L
Lutz Jänicke 已提交
3224 3225 3226
     form for "surname", serialNumber has no short form.
     Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
     therefore remove "mail" short name for "internet 7".
3227 3228
     The OID for unique identifiers in X509 certificates is
     x500UniqueIdentifier, not uniqueIdentifier.
L
Lutz Jänicke 已提交
3229
     Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
B
Bodo Möller 已提交
3230
     [Lutz Jaenicke]
3231

3232
  *) Add an "init" command to the ENGINE config module and auto initialize
D
 
Dr. Stephen Henson 已提交
3233 3234 3235 3236 3237 3238 3239
     ENGINEs. Without any "init" command the ENGINE will be initialized 
     after all ctrl commands have been executed on it. If init=1 the 
     ENGINE is initailized at that point (ctrls before that point are run
     on the uninitialized ENGINE and after on the initialized one). If
     init=0 then the ENGINE will not be iniatialized at all.
     [Steve Henson]

3240
  *) Fix the 'app_verify_callback' interface so that the user-defined
3241 3242 3243 3244 3245 3246 3247 3248 3249 3250 3251 3252 3253 3254 3255
     argument is actually passed to the callback: In the
     SSL_CTX_set_cert_verify_callback() prototype, the callback
     declaration has been changed from
          int (*cb)()
     into
          int (*cb)(X509_STORE_CTX *,void *);
     in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
          i=s->ctx->app_verify_callback(&ctx)
     has been changed into
          i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).

     To update applications using SSL_CTX_set_cert_verify_callback(),
     a dummy argument can be added to their callback functions.
     [D. K. Smetters <smetters@parc.xerox.com>]

3256
  *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3257 3258
     [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]

3259
  *) Add and OPENSSL_LOAD_CONF define which will cause
3260 3261 3262 3263 3264 3265 3266 3267
     OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
     This allows older applications to transparently support certain
     OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
     Two new functions OPENSSL_add_all_algorithms_noconf() which will never
     load the config file and OPENSSL_add_all_algorithms_conf() which will
     always load it have also been added.
     [Steve Henson]

3268
  *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3269 3270 3271
     Adjust NIDs and EVP layer.
     [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]

3272
  *) Config modules support in openssl utility.
D
Dr. Stephen Henson 已提交
3273 3274 3275 3276 3277 3278 3279 3280 3281 3282 3283

     Most commands now load modules from the config file,
     though in a few (such as version) this isn't done 
     because it couldn't be used for anything.

     In the case of ca and req the config file used is
     the same as the utility itself: that is the -config
     command line option can be used to specify an
     alternative file.
     [Steve Henson]

3284
  *) Move default behaviour from OPENSSL_config(). If appname is NULL
3285 3286 3287
     use "openssl_conf" if filename is NULL use default openssl config file.
     [Steve Henson]

3288
  *) Add an argument to OPENSSL_config() to allow the use of an alternative
3289 3290 3291 3292
     config section name. Add a new flag to tolerate a missing config file
     and move code to CONF_modules_load_file().
     [Steve Henson]

3293
  *) Support for crypto accelerator cards from Accelerated Encryption
3294 3295 3296 3297 3298
     Processing, www.aep.ie.  (Use engine 'aep')
     The support was copied from 0.9.6c [engine] and adapted/corrected
     to work with the new engine framework.
     [AEP Inc. and Richard Levitte]

3299
  *) Support for SureWare crypto accelerator cards from Baltimore
3300 3301 3302 3303 3304
     Technologies.  (Use engine 'sureware')
     The support was copied from 0.9.6c [engine] and adapted
     to work with the new engine framework.
     [Richard Levitte]

3305
  *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3306 3307 3308
     make the newer ENGINE framework commands for the CHIL engine work.
     [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]

3309
  *) Make it possible to produce shared libraries on ReliantUNIX.
3310 3311
     [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]

3312
  *) Add the configuration target debug-linux-ppro.
3313 3314 3315 3316 3317 3318
     Make 'openssl rsa' use the general key loading routines
     implemented in apps.c, and make those routines able to
     handle the key format FORMAT_NETSCAPE and the variant
     FORMAT_IISSGC.
     [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]

3319
 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3320 3321
     [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]

3322
  *) Add -keyform to rsautl, and document -engine.
R
Richard Levitte 已提交
3323 3324
     [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]

3325
  *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
B
Bodo Möller 已提交
3326 3327 3328 3329
     BIO_R_NO_SUCH_FILE error code rather than the generic
     ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
     [Ben Laurie]

3330
  *) Add new functions
B
Bodo Möller 已提交
3331 3332 3333 3334 3335 3336 3337 3338 3339 3340 3341
          ERR_peek_last_error
          ERR_peek_last_error_line
          ERR_peek_last_error_line_data.
     These are similar to
          ERR_peek_error
          ERR_peek_error_line
          ERR_peek_error_line_data,
     but report on the latest error recorded rather than the first one
     still in the error queue.
     [Ben Laurie, Bodo Moeller]
        
3342
  *) default_algorithms option in ENGINE config module. This allows things
D
 
Dr. Stephen Henson 已提交
3343 3344 3345 3346 3347
     like:
     default_algorithms = ALL
     default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
     [Steve Henson]

3348
  *) Prelminary ENGINE config module.
D
 
Dr. Stephen Henson 已提交
3349 3350
     [Steve Henson]

3351
  *) New experimental application configuration code.
D
 
Dr. Stephen Henson 已提交
3352 3353
     [Steve Henson]

3354
  *) Change the AES code to follow the same name structure as all other
3355 3356 3357 3358
     symmetric ciphers, and behave the same way.  Move everything to
     the directory crypto/aes, thereby obsoleting crypto/rijndael.
     [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]

3359
  *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
B
Ben Laurie 已提交
3360 3361
     [Ben Laurie and Theo de Raadt]

3362
  *) Add option to output public keys in req command.
3363 3364
     [Massimiliano Pala madwolf@openca.org]

3365
  *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3366
     (up to about 10% better than before for P-192 and P-224).
B
Bodo Möller 已提交
3367 3368
     [Bodo Moeller]

3369
  *) New functions/macros
3370 3371 3372 3373 3374 3375 3376 3377 3378 3379 3380 3381 3382 3383 3384 3385 3386 3387 3388 3389 3390 3391 3392 3393 3394 3395

          SSL_CTX_set_msg_callback(ctx, cb)
          SSL_CTX_set_msg_callback_arg(ctx, arg)
          SSL_set_msg_callback(ssl, cb)
          SSL_set_msg_callback_arg(ssl, arg)

     to request calling a callback function

          void cb(int write_p, int version, int content_type,
                  const void *buf, size_t len, SSL *ssl, void *arg)

     whenever a protocol message has been completely received
     (write_p == 0) or sent (write_p == 1).  Here 'version' is the
     protocol version  according to which the SSL library interprets
     the current protocol message (SSL2_VERSION, SSL3_VERSION, or
     TLS1_VERSION).  'content_type' is 0 in the case of SSL 2.0, or
     the content type as defined in the SSL 3.0/TLS 1.0 protocol
     specification (change_cipher_spec(20), alert(21), handshake(22)).
     'buf' and 'len' point to the actual message, 'ssl' to the
     SSL object, and 'arg' is the application-defined value set by
     SSL[_CTX]_set_msg_callback_arg().

     'openssl s_client' and 'openssl s_server' have new '-msg' options
     to enable a callback that displays all protocol messages.
     [Bodo Moeller]

3396
  *) Change the shared library support so shared libraries are built as
3397 3398 3399 3400 3401 3402 3403 3404 3405
     soon as the corresponding static library is finished, and thereby get
     openssl and the test programs linked against the shared library.
     This still only happens when the keyword "shard" has been given to
     the configuration scripts.

     NOTE: shared library support is still an experimental thing, and
     backward binary compatibility is still not guaranteed.
     ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]

3406
  *) Add support for Subject Information Access extension.
3407 3408
     [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]

3409
  *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3410 3411 3412 3413
     additional bytes when new memory had to be allocated, not just
     when reusing an existing buffer.
     [Bodo Moeller]

3414
  *) New command line and configuration option 'utf8' for the req command.
3415 3416 3417
     This allows field values to be specified as UTF8 strings.
     [Steve Henson]

3418
  *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3419 3420 3421
     runs for the former and machine-readable output for the latter.
     [Ben Laurie]

3422
  *) Add '-noemailDN' option to 'openssl ca'.  This prevents inclusion
3423 3424 3425 3426 3427
     of the e-mail address in the DN (i.e., it will go into a certificate
     extension only).  The new configuration file option 'email_in_dn = no'
     has the same effect.
     [Massimiliano Pala madwolf@openca.org]

3428
  *) Change all functions with names starting with des_ to be starting
3429
     with DES_ instead.  Add wrappers that are compatible with libdes,
3430
     but are named _ossl_old_des_*.  Finally, add macros that map the
3431 3432 3433 3434
     des_* symbols to the corresponding _ossl_old_des_* if libdes
     compatibility is desired.  If OpenSSL 0.9.6c compatibility is
     desired, the des_* symbols will be mapped to DES_*, with one
     exception.
3435

3436 3437 3438 3439 3440 3441 3442 3443 3444 3445 3446 3447 3448
     Since we provide two compatibility mappings, the user needs to
     define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
     compatibility is desired.  The default (i.e., when that macro
     isn't defined) is OpenSSL 0.9.6c compatibility.

     There are also macros that enable and disable the support of old
     des functions altogether.  Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
     and OPENSSL_DISABLE_OLD_DES_SUPPORT.  If none or both of those
     are defined, the default will apply: to support the old des routines.

     In either case, one must include openssl/des.h to get the correct
     definitions.  Do not try to just include openssl/des_old.h, that
     won't work.
3449 3450 3451 3452

     NOTE: This is a major break of an old API into a new one.  Software
     authors are encouraged to switch to the DES_ style functions.  Some
     time in the future, des_old.h and the libdes compatibility functions
3453 3454
     will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
     default), and then completely removed.
3455 3456
     [Richard Levitte]

3457
  *) Test for certificates which contain unsupported critical extensions.
D
 
Dr. Stephen Henson 已提交
3458 3459 3460 3461 3462 3463 3464 3465
     If such a certificate is found during a verify operation it is 
     rejected by default: this behaviour can be overridden by either
     handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
     by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
     X509_supported_extension() has also been added which returns 1 if a
     particular extension is supported.
     [Steve Henson]

3466
  *) Modify the behaviour of EVP cipher functions in similar way to digests
3467 3468 3469
     to retain compatibility with existing code.
     [Steve Henson]

3470
  *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
D
Dr. Stephen Henson 已提交
3471 3472 3473 3474 3475 3476 3477 3478 3479 3480
     compatibility with existing code. In particular the 'ctx' parameter does
     not have to be to be initialized before the call to EVP_DigestInit() and
     it is tidied up after a call to EVP_DigestFinal(). New function
     EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
     EVP_MD_CTX_copy() changed to not require the destination to be
     initialized valid and new function EVP_MD_CTX_copy_ex() added which
     requires the destination to be valid.

     Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
     EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
D
 
Dr. Stephen Henson 已提交
3481 3482
     [Steve Henson]

3483
  *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3484 3485 3486 3487
     so that complete 'Handshake' protocol structures are kept in memory
     instead of overwriting 'msg_type' and 'length' with 'body' data.
     [Bodo Moeller]

3488
  *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3489 3490
     [Massimo Santin via Richard Levitte]

3491
  *) Major restructuring to the underlying ENGINE code. This includes
3492 3493 3494 3495 3496 3497 3498 3499 3500 3501 3502 3503 3504 3505 3506 3507 3508 3509 3510 3511 3512
     reduction of linker bloat, separation of pure "ENGINE" manipulation
     (initialisation, etc) from functionality dealing with implementations
     of specific crypto iterfaces. This change also introduces integrated
     support for symmetric ciphers and digest implementations - so ENGINEs
     can now accelerate these by providing EVP_CIPHER and EVP_MD
     implementations of their own. This is detailed in crypto/engine/README
     as it couldn't be adequately described here. However, there are a few
     API changes worth noting - some RSA, DSA, DH, and RAND functions that
     were changed in the original introduction of ENGINE code have now
     reverted back - the hooking from this code to ENGINE is now a good
     deal more passive and at run-time, operations deal directly with
     RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
     dereferencing through an ENGINE pointer any more. Also, the ENGINE
     functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
     they were not being used by the framework as there is no concept of a
     BIGNUM_METHOD and they could not be generalised to the new
     'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
     ENGINE_cpy() has been removed as it cannot be consistently defined in
     the new code.
     [Geoff Thorpe]

3513
  *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3514 3515
     [Steve Henson]

3516
  *) Change mkdef.pl to sort symbols that get the same entry number,
R
Richard Levitte 已提交
3517 3518 3519 3520
     and make sure the automatically generated functions ERR_load_*
     become part of libeay.num as well.
     [Richard Levitte]

3521
  *) New function SSL_renegotiate_pending().  This returns true once
3522 3523 3524 3525 3526 3527 3528 3529 3530
     renegotiation has been requested (either SSL_renegotiate() call
     or HelloRequest/ClientHello receveived from the peer) and becomes
     false once a handshake has been completed.
     (For servers, SSL_renegotiate() followed by SSL_do_handshake()
     sends a HelloRequest, but does not ensure that a handshake takes
     place.  SSL_renegotiate_pending() is useful for checking if the
     client has followed the request.)
     [Bodo Moeller]

3531
  *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3532 3533 3534
     By default, clients may request session resumption even during
     renegotiation (if session ID contexts permit); with this option,
     session resumption is possible only in the first handshake.
3535 3536 3537 3538

     SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL.  This makes
     more bits available for options that should not be part of
     SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3539 3540
     [Bodo Moeller]

3541
  *) Add some demos for certificate and certificate request creation.
3542 3543
     [Steve Henson]

3544
  *) Make maximum certificate chain size accepted from the peer application
3545 3546 3547 3548
     settable (SSL*_get/set_max_cert_list()), as proposed by
     "Douglas E. Engert" <deengert@anl.gov>.
     [Lutz Jaenicke]

3549
  *) Add support for shared libraries for Unixware-7
3550
     (Boyd Lynn Gerber <gerberb@zenez.com>).
3551 3552
     [Lutz Jaenicke]

3553
  *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3554 3555 3556
     be done prior to destruction. Use this to unload error strings from
     ENGINEs that load their own error strings. NB: This adds two new API
     functions to "get" and "set" this destroy handler in an ENGINE.
B
Bodo Möller 已提交
3557
     [Geoff Thorpe]
3558

3559
  *) Alter all existing ENGINE implementations (except "openssl" and
G
Geoff Thorpe 已提交
3560 3561 3562 3563 3564 3565 3566
     "openbsd") to dynamically instantiate their own error strings. This
     makes them more flexible to be built both as statically-linked ENGINEs
     and self-contained shared-libraries loadable via the "dynamic" ENGINE.
     Also, add stub code to each that makes building them as self-contained
     shared-libraries easier (see README.ENGINE).
     [Geoff Thorpe]

3567
  *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
G
Geoff Thorpe 已提交
3568 3569 3570 3571 3572 3573 3574 3575 3576
     implementations into applications that are completely implemented in
     self-contained shared-libraries. The "dynamic" ENGINE exposes control
     commands that can be used to configure what shared-library to load and
     to control aspects of the way it is handled. Also, made an update to
     the README.ENGINE file that brings its information up-to-date and
     provides some information and instructions on the "dynamic" ENGINE
     (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
     [Geoff Thorpe]

3577
  *) Make it possible to unload ranges of ERR strings with a new
3578 3579 3580
     "ERR_unload_strings" function.
     [Geoff Thorpe]

3581
  *) Add a copy() function to EVP_MD.
3582 3583
     [Ben Laurie]

3584
  *) Make EVP_MD routines take a context pointer instead of just the
U
ispell  
Ulf Möller 已提交
3585
     md_data void pointer.
3586 3587
     [Ben Laurie]

3588
  *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3589 3590 3591 3592 3593 3594 3595
     that the digest can only process a single chunk of data
     (typically because it is provided by a piece of
     hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
     is only going to provide a single chunk of data, and hence the
     framework needn't accumulate the data for oneshot drivers.
     [Ben Laurie]

3596
  *) As with "ERR", make it possible to replace the underlying "ex_data"
G
Geoff Thorpe 已提交
3597 3598 3599 3600 3601 3602 3603 3604 3605 3606 3607 3608 3609 3610
     functions. This change also alters the storage and management of global
     ex_data state - it's now all inside ex_data.c and all "class" code (eg.
     RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
     index counters. The API functions that use this state have been changed
     to take a "class_index" rather than pointers to the class's local STACK
     and counter, and there is now an API function to dynamically create new
     classes. This centralisation allows us to (a) plug a lot of the
     thread-safety problems that existed, and (b) makes it possible to clean
     up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
     such data would previously have always leaked in application code and
     workarounds were in place to make the memory debugging turn a blind eye
     to it. Application code that doesn't use this new function will still
     leak as before, but their memory debugging output will announce it now
     rather than letting it slide.
3611 3612 3613 3614

     Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
     induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
     has a return value to indicate success or failure.
G
Geoff Thorpe 已提交
3615 3616
     [Geoff Thorpe]

3617
  *) Make it possible to replace the underlying "ERR" functions such that the
G
Geoff Thorpe 已提交
3618 3619 3620 3621 3622 3623 3624 3625 3626 3627
     global state (2 LHASH tables and 2 locks) is only used by the "default"
     implementation. This change also adds two functions to "get" and "set"
     the implementation prior to it being automatically set the first time
     any other ERR function takes place. Ie. an application can call "get",
     pass the return value to a module it has just loaded, and that module
     can call its own "set" function using that value. This means the
     module's "ERR" operations will use (and modify) the error state in the
     application and not in its own statically linked copy of OpenSSL code.
     [Geoff Thorpe]

3628
  *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3629 3630 3631 3632
     reference counts. This performs normal REF_PRINT/REF_CHECK macros on
     the operation, and provides a more encapsulated way for external code
     (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
     to use these functions rather than manually incrementing the counts.
3633 3634

     Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3635 3636
     [Geoff Thorpe]

3637
  *) Add EVP test program.
B
Ben Laurie 已提交
3638 3639
     [Ben Laurie]

3640
  *) Add symmetric cipher support to ENGINE. Expect the API to change!
3641 3642
     [Ben Laurie]

3643
  *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
D
 
Dr. Stephen Henson 已提交
3644 3645 3646 3647 3648 3649
     X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
     X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
     These allow a CRL to be built without having to access X509_CRL fields
     directly. Modify 'ca' application to use new functions.
     [Steve Henson]

3650
  *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3651
     bug workarounds. Rollback attack detection is a security feature.
B
Bodo Möller 已提交
3652
     The problem will only arise on OpenSSL servers when TLSv1 is not
3653 3654 3655 3656 3657
     available (sslv3_server_method() or SSL_OP_NO_TLSv1).
     Software authors not wanting to support TLSv1 will have special reasons
     for their choice and can explicitly enable this option.
     [Bodo Moeller, Lutz Jaenicke]

3658
  *) Rationalise EVP so it can be extended: don't include a union of
B
Bodo Möller 已提交
3659 3660
     cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
     (similar to those existing for EVP_CIPHER_CTX).
B
Bodo Möller 已提交
3661 3662 3663 3664 3665 3666 3667 3668 3669 3670
     Usage example:

         EVP_MD_CTX md;

         EVP_MD_CTX_init(&md);             /* new function call */
         EVP_DigestInit(&md, EVP_sha1());
         EVP_DigestUpdate(&md, in, len);
         EVP_DigestFinal(&md, out, NULL);
         EVP_MD_CTX_cleanup(&md);          /* new function call */

3671 3672
     [Ben Laurie]

3673
  *) Make DES key schedule conform to the usual scheme, as well as
B
Ben Laurie 已提交
3674 3675 3676
     correcting its structure. This means that calls to DES functions
     now have to pass a pointer to a des_key_schedule instead of a
     plain des_key_schedule (which was actually always a pointer
B
Bodo Möller 已提交
3677 3678 3679 3680 3681 3682 3683 3684
     anyway): E.g.,

         des_key_schedule ks;

	 des_set_key_checked(..., &ks);
	 des_ncbc_encrypt(..., &ks, ...);

     (Note that a later change renames 'des_...' into 'DES_...'.)
3685 3686
     [Ben Laurie]

3687
  *) Initial reduction of linker bloat: the use of some functions, such as
D
 
Dr. Stephen Henson 已提交
3688 3689 3690 3691 3692 3693 3694
     PEM causes large amounts of unused functions to be linked in due to
     poor organisation. For example pem_all.c contains every PEM function
     which has a knock on effect of linking in large amounts of (unused)
     ASN1 code. Grouping together similar functions and splitting unrelated
     functions prevents this.
     [Steve Henson]

3695
  *) Cleanup of EVP macros.
3696
     [Ben Laurie]
3697

3698
  *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3699 3700
     correct _ecb suffix.
     [Ben Laurie]
3701

3702
  *) Add initial OCSP responder support to ocsp application. The
D
 
Dr. Stephen Henson 已提交
3703 3704 3705 3706 3707 3708
     revocation information is handled using the text based index
     use by the ca application. The responder can either handle
     requests generated internally, supplied in files (for example
     via a CGI script) or using an internal minimal server.
     [Steve Henson]

3709
  *) Add configuration choices to get zlib compression for TLS.
3710 3711
     [Richard Levitte]

3712
  *) Changes to Kerberos SSL for RFC 2712 compliance:
3713 3714 3715 3716 3717 3718 3719 3720 3721 3722 3723 3724
     1.  Implemented real KerberosWrapper, instead of just using
         KRB5 AP_REQ message.  [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
     2.  Implemented optional authenticator field of KerberosWrapper.

     Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
     and authenticator structs; see crypto/krb5/.

     Generalized Kerberos calls to support multiple Kerberos libraries.
     [Vern Staats <staatsvr@asc.hpc.mil>,
      Jeffrey Altman <jaltman@columbia.edu>
      via Richard Levitte]

3725
  *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3726 3727 3728 3729 3730
     already does with RSA. testdsa.h now has 'priv_key/pub_key'
     values for each of the key sizes rather than having just
     parameters (and 'speed' generating keys each time).
     [Geoff Thorpe]

3731
  *) Speed up EVP routines.
3732 3733 3734 3735 3736 3737 3738 3739 3740 3741 3742 3743
     Before:
encrypt
type              8 bytes     64 bytes    256 bytes   1024 bytes   8192 bytes
des-cbc           4408.85k     5560.51k     5778.46k     5862.20k     5825.16k
des-cbc           4389.55k     5571.17k     5792.23k     5846.91k     5832.11k
des-cbc           4394.32k     5575.92k     5807.44k     5848.37k     5841.30k
decrypt
des-cbc           3482.66k     5069.49k     5496.39k     5614.16k     5639.28k
des-cbc           3480.74k     5068.76k     5510.34k     5609.87k     5635.52k
des-cbc           3483.72k     5067.62k     5504.60k     5708.01k     5724.80k
     After:
encrypt
3744
des-cbc           4660.16k     5650.19k     5807.19k     5827.13k     5783.32k
3745
decrypt
3746
des-cbc           3624.96k     5258.21k     5530.91k     5624.30k     5628.26k
3747 3748
     [Ben Laurie]

3749
  *) Added the OS2-EMX target.
R
Richard Levitte 已提交
3750 3751
     ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]

3752
  *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
D
 
Dr. Stephen Henson 已提交
3753 3754 3755 3756 3757 3758 3759
     to support NCONF routines in extension code. New function CONF_set_nconf()
     to allow functions which take an NCONF to also handle the old LHASH
     structure: this means that the old CONF compatible routines can be
     retained (in particular wrt extensions) without having to duplicate the
     code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
     [Steve Henson]

3760
  *) Enhance the general user interface with mechanisms for inner control
U
ispell  
Ulf Möller 已提交
3761
     and with possibilities to have yes/no kind of prompts.
R
Richard Levitte 已提交
3762 3763
     [Richard Levitte]

3764
  *) Change all calls to low level digest routines in the library and
D
 
Dr. Stephen Henson 已提交
3765 3766 3767 3768
     applications to use EVP. Add missing calls to HMAC_cleanup() and
     don't assume HMAC_CTX can be copied using memcpy().
     [Verdon Walker <VWalker@novell.com>, Steve Henson]

3769
  *) Add the possibility to control engines through control names but with
3770 3771 3772 3773
     arbitrary arguments instead of just a string.
     Change the key loaders to take a UI_METHOD instead of a callback
     function pointer.  NOTE: this breaks binary compatibility with earlier
     versions of OpenSSL [engine].
U
ispell  
Ulf Möller 已提交
3774
     Adapt the nCipher code for these new conditions and add a card insertion
3775 3776 3777
     callback.
     [Richard Levitte]

3778
  *) Enhance the general user interface with mechanisms to better support
3779 3780
     dialog box interfaces, application-defined prompts, the possibility
     to use defaults (for example default passwords from somewhere else)
U
ispell  
Ulf Möller 已提交
3781
     and interrupts/cancellations.
3782 3783
     [Richard Levitte]

3784
  *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3785 3786 3787
     attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
     [Steve Henson]

3788
  *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
U
ispell  
Ulf Möller 已提交
3789
     tidy up some unnecessarily weird code in 'sk_new()').
3790 3791
     [Geoff, reported by Diego Tartara <dtartara@novamens.com>]

3792
  *) Change the key loading routines for ENGINEs to use the same kind
3793 3794 3795 3796
     callback (pem_password_cb) as all other routines that need this
     kind of callback.
     [Richard Levitte]

3797
  *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3798 3799
     256 bit (=32 byte) keys. Of course seeding with more entropy bytes
     than this minimum value is recommended.
3800
     [Lutz Jaenicke]
3801

3802
  *) New random seeder for OpenVMS, using the system process statistics
R
Richard Levitte 已提交
3803 3804 3805
     that are easily reachable.
     [Richard Levitte]

3806
  *) Windows apparently can't transparently handle global
3807 3808 3809 3810 3811
     variables defined in DLLs. Initialisations such as:

        const ASN1_ITEM *it = &ASN1_INTEGER_it;

     wont compile. This is used by the any applications that need to
U
ispell  
Ulf Möller 已提交
3812
     declare their own ASN1 modules. This was fixed by adding the option
3813 3814 3815 3816
     EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
     needed for static libraries under Win32.
     [Steve Henson]

3817
  *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
D
 
Dr. Stephen Henson 已提交
3818 3819 3820 3821
     setting of purpose and trust fields. New X509_STORE trust and
     purpose functions and tidy up setting in other SSL functions.
     [Steve Henson]

3822
  *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3823 3824 3825 3826 3827 3828 3829 3830 3831 3832 3833 3834 3835 3836
     structure. These are inherited by X509_STORE_CTX when it is 
     initialised. This allows various defaults to be set in the
     X509_STORE structure (such as flags for CRL checking and custom
     purpose or trust settings) for functions which only use X509_STORE_CTX
     internally such as S/MIME.

     Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
     trust settings if they are not set in X509_STORE. This allows X509_STORE
     purposes and trust (in S/MIME for example) to override any set by default.

     Add command line options for CRL checking to smime, s_client and s_server
     applications.
     [Steve Henson]

3837
  *) Initial CRL based revocation checking. If the CRL checking flag(s)
D
 
Dr. Stephen Henson 已提交
3838 3839 3840 3841 3842 3843 3844 3845 3846 3847 3848 3849 3850 3851
     are set then the CRL is looked up in the X509_STORE structure and
     its validity and signature checked, then if the certificate is found
     in the CRL the verify fails with a revoked error.

     Various new CRL related callbacks added to X509_STORE_CTX structure.

     Command line options added to 'verify' application to support this.

     This needs some additional work, such as being able to handle multiple
     CRLs with different times, extension based lookup (rather than just
     by subject name) and ultimately more complete V2 CRL extension
     handling.
     [Steve Henson]

3852
  *) Add a general user interface API (crypto/ui/).  This is designed
3853 3854 3855 3856 3857
     to replace things like des_read_password and friends (backward
     compatibility functions using this new API are provided).
     The purpose is to remove prompting functions from the DES code
     section as well as provide for prompting through dialog boxes in
     a window system and the like.
3858 3859
     [Richard Levitte]

3860
  *) Add "ex_data" support to ENGINE so implementations can add state at a
G
Geoff Thorpe 已提交
3861 3862 3863
     per-structure level rather than having to store it globally.
     [Geoff]

3864
  *) Make it possible for ENGINE structures to be copied when retrieved by
G
Geoff Thorpe 已提交
3865 3866 3867 3868 3869 3870 3871 3872 3873 3874 3875
     ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
     This causes the "original" ENGINE structure to act like a template,
     analogous to the RSA vs. RSA_METHOD type of separation. Because of this
     operational state can be localised to each ENGINE structure, despite the
     fact they all share the same "methods". New ENGINE structures returned in
     this case have no functional references and the return value is the single
     structural reference. This matches the single structural reference returned
     by ENGINE_by_id() normally, when it is incremented on the pre-existing
     ENGINE structure.
     [Geoff]

3876
  *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
D
 
Dr. Stephen Henson 已提交
3877 3878 3879 3880
     needs to match any other type at all we need to manually clear the
     tag cache.
     [Steve Henson]

3881
  *) Changes to the "openssl engine" utility to include;
3882 3883 3884 3885 3886 3887 3888 3889 3890
     - verbosity levels ('-v', '-vv', and '-vvv') that provide information
       about an ENGINE's available control commands.
     - executing control commands from command line arguments using the
       '-pre' and '-post' switches. '-post' is only used if '-t' is
       specified and the ENGINE is successfully initialised. The syntax for
       the individual commands are colon-separated, for example;
	 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
     [Geoff]

3891
  *) New dynamic control command support for ENGINEs. ENGINEs can now
3892 3893 3894 3895 3896 3897 3898 3899 3900 3901 3902 3903 3904 3905 3906 3907 3908 3909
     declare their own commands (numbers), names (strings), descriptions,
     and input types for run-time discovery by calling applications. A
     subset of these commands are implicitly classed as "executable"
     depending on their input type, and only these can be invoked through
     the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
     can be based on user input, config files, etc). The distinction is
     that "executable" commands cannot return anything other than a boolean
     result and can only support numeric or string input, whereas some
     discoverable commands may only be for direct use through
     ENGINE_ctrl(), eg. supporting the exchange of binary data, function
     pointers, or other custom uses. The "executable" commands are to
     support parameterisations of ENGINE behaviour that can be
     unambiguously defined by ENGINEs and used consistently across any
     OpenSSL-based application. Commands have been added to all the
     existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
     control over shared-library paths without source code alterations.
     [Geoff]

3910
  *) Changed all ENGINE implementations to dynamically allocate their
3911 3912 3913 3914 3915 3916
     ENGINEs rather than declaring them statically. Apart from this being
     necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
     this also allows the implementations to compile without using the
     internal engine_int.h header.
     [Geoff]

3917
  *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3918 3919 3920 3921 3922
     'const' value. Any code that should be able to modify a RAND_METHOD
     should already have non-const pointers to it (ie. they should only
     modify their own ones).
     [Geoff]

3923
  *) Made a variety of little tweaks to the ENGINE code.
3924 3925 3926 3927 3928 3929 3930 3931 3932 3933 3934 3935
     - "atalla" and "ubsec" string definitions were moved from header files
       to C code. "nuron" string definitions were placed in variables
       rather than hard-coded - allowing parameterisation of these values
       later on via ctrl() commands.
     - Removed unused "#if 0"'d code.
     - Fixed engine list iteration code so it uses ENGINE_free() to release
       structural references.
     - Constified the RAND_METHOD element of ENGINE structures.
     - Constified various get/set functions as appropriate and added
       missing functions (including a catch-all ENGINE_cpy that duplicates
       all ENGINE values onto a new ENGINE except reference counts/state).
     - Removed NULL parameter checks in get/set functions. Setting a method
3936
       or function to NULL is a way of cancelling out a previously set
3937 3938 3939 3940 3941 3942 3943 3944
       value.  Passing a NULL ENGINE parameter is just plain stupid anyway
       and doesn't justify the extra error symbols and code.
     - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
       flags from engine_int.h to engine.h.
     - Changed prototypes for ENGINE handler functions (init(), finish(),
       ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
     [Geoff]

3945
  *) Implement binary inversion algorithm for BN_mod_inverse in addition
U
ispell  
Ulf Möller 已提交
3946
     to the algorithm using long division.  The binary algorithm can be
3947 3948 3949 3950 3951 3952
     used only if the modulus is odd.  On 32-bit systems, it is faster
     only for relatively small moduli (roughly 20-30% for 128-bit moduli,
     roughly 5-15% for 256-bit moduli), so we use it only for moduli
     up to 450 bits.  In 64-bit environments, the binary algorithm
     appears to be advantageous for much longer moduli; here we use it
     for moduli up to 2048 bits.
3953 3954
     [Bodo Moeller]

3955
  *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3956 3957 3958
     could not support the combine flag in choice fields.
     [Steve Henson]

3959
  *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3960 3961 3962
     extensions from a certificate request to the certificate.
     [Steve Henson]

3963
  *) Allow multiple 'certopt' and 'nameopt' options to be separated
D
 
Dr. Stephen Henson 已提交
3964 3965 3966 3967 3968 3969 3970 3971
     by commas. Add 'namopt' and 'certopt' options to the 'ca' config
     file: this allows the display of the certificate about to be
     signed to be customised, to allow certain fields to be included
     or excluded and extension details. The old system didn't display
     multicharacter strings properly, omitted fields not in the policy
     and couldn't display additional details such as extensions.
     [Steve Henson]

3972
  *) Function EC_POINTs_mul for multiple scalar multiplication
B
Bodo Möller 已提交
3973 3974 3975 3976 3977
     of an arbitrary number of elliptic curve points
          \sum scalars[i]*points[i],
     optionally including the generator defined for the EC_GROUP:
          scalar*generator +  \sum scalars[i]*points[i].

3978 3979 3980
     EC_POINT_mul is a simple wrapper function for the typical case
     that the point list has just one item (besides the optional
     generator).
3981 3982
     [Bodo Moeller]

3983
  *) First EC_METHODs for curves over GF(p):
3984 3985 3986 3987 3988 3989 3990 3991 3992 3993 3994 3995

     EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
     operations and provides various method functions that can also
     operate with faster implementations of modular arithmetic.     

     EC_GFp_mont_method() reuses most functions that are part of
     EC_GFp_simple_method, but uses Montgomery arithmetic.

     [Bodo Moeller; point addition and point doubling
     implementation directly derived from source code provided by
     Lenka Fibikova <fibikova@exp-math.uni-essen.de>]

3996
  *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3997 3998
     crypto/ec/ec_lib.c):

B
Bodo Möller 已提交
3999 4000
     Curves are EC_GROUP objects (with an optional group generator)
     based on EC_METHODs that are built into the library.
4001 4002 4003 4004

     Points are EC_POINT objects based on EC_GROUP objects.

     Most of the framework would be able to handle curves over arbitrary
B
Bodo Möller 已提交
4005 4006
     finite fields, but as there are no obvious types for fields other
     than GF(p), some functions are limited to that for now.
4007 4008
     [Bodo Moeller]

4009
  *) Add the -HTTP option to s_server.  It is similar to -WWW, but requires
4010 4011 4012
     that the file contains a complete HTTP response.
     [Richard Levitte]

4013
  *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
D
 
Dr. Stephen Henson 已提交
4014 4015 4016 4017 4018 4019
     change the def and num file printf format specifier from "%-40sXXX"
     to "%-39s XXX". The latter will always guarantee a space after the
     field while the former will cause them to run together if the field
     is 40 of more characters long.
     [Steve Henson]

4020
  *) Constify the cipher and digest 'method' functions and structures
D
 
Dr. Stephen Henson 已提交
4021 4022 4023 4024
     and modify related functions to take constant EVP_MD and EVP_CIPHER
     pointers.
     [Steve Henson]

4025
  *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4026
     in <openssl/bn.h>.  Also further increase BN_CTX_NUM to 32.
B
Bodo Möller 已提交
4027 4028
     [Bodo Moeller]

4029
  *) Modify EVP_Digest*() routines so they now return values. Although the
D
 
Dr. Stephen Henson 已提交
4030 4031 4032 4033
     internal software routines can never fail additional hardware versions
     might.
     [Steve Henson]

4034
  *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
B
Bodo Möller 已提交
4035 4036 4037 4038 4039 4040 4041 4042 4043 4044 4045 4046 4047 4048 4049 4050 4051

     Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
     (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.

     ASN1 error codes
          ERR_R_NESTED_ASN1_ERROR
          ...
          ERR_R_MISSING_ASN1_EOS
     were 4 .. 9, conflicting with
          ERR_LIB_RSA (= ERR_R_RSA_LIB)
          ...
          ERR_LIB_PEM (= ERR_R_PEM_LIB).
     They are now 58 .. 63 (i.e., just below ERR_R_FATAL).

     Add new error code 'ERR_R_INTERNAL_ERROR'.
     [Bodo Moeller]

4052
  *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
B
Bodo Möller 已提交
4053 4054 4055
     suffices.
     [Bodo Moeller]

4056
  *) New option '-subj arg' for 'openssl req' and 'openssl ca'.  This
4057 4058 4059 4060 4061 4062 4063 4064 4065
     sets the subject name for a new request or supersedes the
     subject name in a given request. Formats that can be parsed are
          'CN=Some Name, OU=myOU, C=IT'
     and
          'CN=Some Name/OU=myOU/C=IT'.

     Add options '-batch' and '-verbose' to 'openssl req'.
     [Massimiliano Pala <madwolf@hackmasters.net>]

4066
  *) Introduce the possibility to access global variables through
4067 4068 4069 4070 4071 4072 4073 4074 4075 4076 4077 4078 4079 4080 4081 4082 4083 4084 4085 4086 4087
     functions on platform were that's the best way to handle exporting
     global variables in shared libraries.  To enable this functionality,
     one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
     "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
     is normally done by Configure or something similar).

     To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
     in the source file (foo.c) like this:

	OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
	OPENSSL_IMPLEMENT_GLOBAL(double,bar);

     To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
     and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:

	OPENSSL_DECLARE_GLOBAL(int,foo);
	#define foo OPENSSL_GLOBAL_REF(foo)
	OPENSSL_DECLARE_GLOBAL(double,bar);
	#define bar OPENSSL_GLOBAL_REF(bar)

     The #defines are very important, and therefore so is including the
U
ispell  
Ulf Möller 已提交
4088
     header file everywhere where the defined globals are used.
4089 4090

     The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
U
ispell  
Ulf Möller 已提交
4091
     of ASN.1 items, but that structure is a bit different.
4092 4093 4094 4095 4096 4097 4098 4099

     The largest change is in util/mkdef.pl which has been enhanced with
     better and easier to understand logic to choose which symbols should
     go into the Windows .def files as well as a number of fixes and code
     cleanup (among others, algorithm keywords are now sorted
     lexicographically to avoid constant rewrites).
     [Richard Levitte]

4100
  *) In BN_div() keep a copy of the sign of 'num' before writing the
D
 
Dr. Stephen Henson 已提交
4101 4102 4103 4104 4105
     result to 'rm' because if rm==num the value will be overwritten
     and produce the wrong result if 'num' is negative: this caused
     problems with BN_mod() and BN_nnmod().
     [Steve Henson]

4106
  *) Function OCSP_request_verify(). This checks the signature on an
D
 
Dr. Stephen Henson 已提交
4107 4108 4109 4110 4111
     OCSP request and verifies the signer certificate. The signer
     certificate is just checked for a generic purpose and OCSP request
     trust settings.
     [Steve Henson]

4112
  *) Add OCSP_check_validity() function to check the validity of OCSP
4113 4114 4115
     responses. OCSP responses are prepared in real time and may only
     be a few seconds old. Simply checking that the current time lies
     between thisUpdate and nextUpdate max reject otherwise valid responses
U
ispell  
Ulf Möller 已提交
4116
     caused by either OCSP responder or client clock inaccuracy. Instead
4117 4118 4119 4120 4121 4122
     we allow thisUpdate and nextUpdate to fall within a certain period of
     the current time. The age of the response can also optionally be
     checked. Two new options -validity_period and -status_age added to
     ocsp utility.
     [Steve Henson]

4123
  *) If signature or public key algorithm is unrecognized print out its
U
ispell  
Ulf Möller 已提交
4124
     OID rather that just UNKNOWN.
D
 
Dr. Stephen Henson 已提交
4125 4126
     [Steve Henson]

4127
  *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4128 4129 4130 4131 4132
     OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
     ID to be generated from the issuer certificate alone which can then be
     passed to OCSP_id_issuer_cmp().
     [Steve Henson]

4133
  *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4134 4135 4136 4137 4138 4139 4140 4141 4142 4143 4144
     ASN1 modules to export functions returning ASN1_ITEM pointers
     instead of the ASN1_ITEM structures themselves. This adds several
     new macros which allow the underlying ASN1 function/structure to
     be accessed transparently. As a result code should not use ASN1_ITEM
     references directly (such as &X509_it) but instead use the relevant
     macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
     use of the new ASN1 code on platforms where exporting structures
     is problematical (for example in shared libraries) but exporting
     functions returning pointers to structures is not.
     [Steve Henson]

4145
  *) Add support for overriding the generation of SSL/TLS session IDs.
4146 4147 4148 4149 4150 4151 4152 4153
     These callbacks can be registered either in an SSL_CTX or per SSL.
     The purpose of this is to allow applications to control, if they wish,
     the arbitrary values chosen for use as session IDs, particularly as it
     can be useful for session caching in multiple-server environments. A
     command-line switch for testing this (and any client code that wishes
     to use such a feature) has been added to "s_server".
     [Geoff Thorpe, Lutz Jaenicke]

4154
  *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4155 4156 4157 4158 4159
     of the form '#if defined(...) || defined(...) || ...' and
     '#if !defined(...) && !defined(...) && ...'.  This also avoids
     the growing number of special cases it was previously handling.
     [Richard Levitte]

4160
  *) Make all configuration macros available for application by making
4161 4162 4163 4164
     sure they are available in opensslconf.h, by giving them names starting
     with "OPENSSL_" to avoid conflicts with other packages and by making
     sure e_os2.h will cover all platform-specific cases together with
     opensslconf.h.
4165 4166 4167 4168 4169 4170
     Additionally, it is now possible to define configuration/platform-
     specific names (called "system identities").  In the C code, these
     are prefixed with "OPENSSL_SYSNAME_".  e_os2.h will create another
     macro with the name beginning with "OPENSSL_SYS_", which is determined
     from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
     what is available.
4171 4172
     [Richard Levitte]

4173
  *) New option -set_serial to 'req' and 'x509' this allows the serial
4174 4175 4176 4177 4178 4179
     number to use to be specified on the command line. Previously self
     signed certificates were hard coded with serial number 0 and the 
     CA options of 'x509' had to use a serial number in a file which was
     auto incremented.
     [Steve Henson]

4180
  *) New options to 'ca' utility to support V2 CRL entry extensions.
4181 4182 4183 4184
     Currently CRL reason, invalidity date and hold instruction are
     supported. Add new CRL extensions to V3 code and some new objects.
     [Steve Henson]

4185
  *) New function EVP_CIPHER_CTX_set_padding() this is used to
4186 4187 4188 4189 4190 4191
     disable standard block padding (aka PKCS#5 padding) in the EVP
     API, which was previously mandatory. This means that the data is
     not padded in any way and so the total length much be a multiple
     of the block size, otherwise an error occurs.
     [Steve Henson]

4192
  *) Initial (incomplete) OCSP SSL support.
D
Dr. Stephen Henson 已提交
4193 4194
     [Steve Henson]

4195
  *) New function OCSP_parse_url(). This splits up a URL into its host,
4196 4197 4198 4199
     port and path components: primarily to parse OCSP URLs. New -url
     option to ocsp utility.
     [Steve Henson]

4200
  *) New nonce behavior. The return value of OCSP_check_nonce() now 
4201 4202 4203 4204 4205 4206 4207 4208
     reflects the various checks performed. Applications can decide
     whether to tolerate certain situations such as an absent nonce
     in a response when one was present in a request: the ocsp application
     just prints out a warning. New function OCSP_add1_basic_nonce()
     this is to allow responders to include a nonce in a response even if
     the request is nonce-less.
     [Steve Henson]

4209
  *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4210 4211 4212 4213
     skipped when using openssl x509 multiple times on a single input file,
     e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
     [Bodo Moeller]

4214
  *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
D
 
Dr. Stephen Henson 已提交
4215 4216 4217 4218
     set string type: to handle setting ASN1_TIME structures. Fix ca
     utility to correctly initialize revocation date of CRLs.
     [Steve Henson]

4219
  *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4220 4221 4222
     the clients preferred ciphersuites and rather use its own preferences.
     Should help to work around M$ SGC (Server Gated Cryptography) bug in
     Internet Explorer by ensuring unchanged hash method during stepup.
L
Lutz Jänicke 已提交
4223
     (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4224 4225
     [Lutz Jaenicke]

4226
  *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4227 4228 4229 4230
     to aes and add a new 'exist' option to print out symbols that don't
     appear to exist.
     [Steve Henson]

4231
  *) Additional options to ocsp utility to allow flags to be set and
4232 4233 4234
     additional certificates supplied.
     [Steve Henson]

4235
  *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4236 4237 4238 4239
     OCSP client a number of certificate to only verify the response
     signature against.
     [Richard Levitte]

4240
  *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
D
 
Dr. Stephen Henson 已提交
4241
     handle the new API. Currently only ECB, CBC modes supported. Add new
B
update  
Bodo Möller 已提交
4242 4243
     AES OIDs.

4244 4245 4246 4247 4248 4249 4250 4251 4252
     Add TLS AES ciphersuites as described in RFC3268, "Advanced
     Encryption Standard (AES) Ciphersuites for Transport Layer
     Security (TLS)".  (In beta versions of OpenSSL 0.9.7, these were
     not enabled by default and were not part of the "ALL" ciphersuite
     alias because they were not yet official; they could be
     explicitly requested by specifying the "AESdraft" ciphersuite
     group alias.  In the final release of OpenSSL 0.9.7, the group
     alias is called "AES" and is part of "ALL".)
     [Ben Laurie, Steve  Henson, Bodo Moeller]
D
 
Dr. Stephen Henson 已提交
4253

4254
  *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4255 4256 4257
     request to response.
     [Steve Henson]

4258
  *) Functions for OCSP responders. OCSP_request_onereq_count(),
D
 
Dr. Stephen Henson 已提交
4259 4260 4261 4262
     OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
     extract information from a certificate request. OCSP_response_create()
     creates a response and optionally adds a basic response structure.
     OCSP_basic_add1_status() adds a complete single response to a basic
U
ispell  
Ulf Möller 已提交
4263
     response and returns the OCSP_SINGLERESP structure just added (to allow
D
 
Dr. Stephen Henson 已提交
4264 4265 4266 4267 4268 4269 4270
     extensions to be included for example). OCSP_basic_add1_cert() adds a
     certificate to a basic response and OCSP_basic_sign() signs a basic
     response with various flags. New helper functions ASN1_TIME_check()
     (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
     (converts ASN1_TIME to GeneralizedTime).
     [Steve Henson]

4271
  *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4272
     in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
U
ispell  
Ulf Möller 已提交
4273
     structure from a certificate. X509_pubkey_digest() digests the public_key
4274 4275 4276
     contents: this is used in various key identifiers. 
     [Steve Henson]

4277
  *) Make sk_sort() tolerate a NULL argument.
4278 4279
     [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]

4280
  *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4281
     passed by the function are trusted implicitly. If any of them signed the
U
ispell  
Ulf Möller 已提交
4282
     response then it is assumed to be valid and is not verified.
4283 4284
     [Steve Henson]

4285
  *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4286 4287 4288 4289 4290
     to data. This was previously part of the PKCS7 ASN1 code. This
     was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
     [Steve Henson, reported by Kenneth R. Robinette
				<support@securenetterm.com>]

4291
  *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4292 4293 4294 4295
     routines: without these tracing memory leaks is very painful.
     Fix leaks in PKCS12 and PKCS7 routines.
     [Steve Henson]

4296
  *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4297 4298 4299 4300 4301 4302 4303 4304
     Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
     effectively meant GeneralizedTime would never be used. Now it
     is initialised to -1 but X509_time_adj() now has to check the value
     and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
     V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
     [Steve Henson, reported by Kenneth R. Robinette
				<support@securenetterm.com>]

4305
  *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4306 4307 4308 4309 4310 4311 4312
     result in a zero length in the ASN1_INTEGER structure which was
     not consistent with the structure when d2i_ASN1_INTEGER() was used
     and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
     to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
     where it did not print out a minus for negative ASN1_INTEGER.
     [Steve Henson]

4313
  *) Add summary printout to ocsp utility. The various functions which
4314 4315 4316 4317 4318 4319 4320
     convert status values to strings have been renamed to:
     OCSP_response_status_str(), OCSP_cert_status_str() and
     OCSP_crl_reason_str() and are no longer static. New options
     to verify nonce values and to disable verification. OCSP response
     printout format cleaned up.
     [Steve Henson]

4321
  *) Add additional OCSP certificate checks. These are those specified
4322 4323 4324 4325 4326 4327 4328 4329 4330
     in RFC2560. This consists of two separate checks: the CA of the
     certificate being checked must either be the OCSP signer certificate
     or the issuer of the OCSP signer certificate. In the latter case the
     OCSP signer certificate must contain the OCSP signing extended key
     usage. This check is performed by attempting to match the OCSP
     signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
     in the OCSP_CERTID structures of the response.
     [Steve Henson]

4331
  *) Initial OCSP certificate verification added to OCSP_basic_verify()
D
 
Dr. Stephen Henson 已提交
4332 4333 4334 4335 4336 4337 4338 4339 4340
     and related routines. This uses the standard OpenSSL certificate
     verify routines to perform initial checks (just CA validity) and
     to obtain the certificate chain. Then additional checks will be
     performed on the chain. Currently the root CA is checked to see
     if it is explicitly trusted for OCSP signing. This is used to set
     a root CA as a global signing root: that is any certificate that
     chains to that CA is an acceptable OCSP signing certificate.
     [Steve Henson]

4341
  *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4342 4343 4344 4345 4346 4347
     extensions from a separate configuration file.
     As when reading extensions from the main configuration file,
     the '-extensions ...' option may be used for specifying the
     section to use.
     [Massimiliano Pala <madwolf@comune.modena.it>]

4348
  *) New OCSP utility. Allows OCSP requests to be generated or
D
 
Dr. Stephen Henson 已提交
4349 4350 4351 4352 4353
     read. The request can be sent to a responder and the output
     parsed, outputed or printed in text form. Not complete yet:
     still needs to check the OCSP response validity.
     [Steve Henson]

4354
  *) New subcommands for 'openssl ca':
4355 4356 4357 4358 4359 4360
     'openssl ca -status <serial>' prints the status of the cert with
     the given serial number (according to the index file).
     'openssl ca -updatedb' updates the expiry status of certificates
     in the index file.
     [Massimiliano Pala <madwolf@comune.modena.it>]

4361
  *) New '-newreq-nodes' command option to CA.pl.  This is like
4362 4363 4364 4365
     '-newreq', but calls 'openssl req' with the '-nodes' option
     so that the resulting key is not encrypted.
     [Damien Miller <djm@mindrot.org>]

4366
  *) New configuration for the GNU Hurd.
4367 4368
     [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]

4369
  *) Initial code to implement OCSP basic response verify. This
D
 
Dr. Stephen Henson 已提交
4370 4371 4372 4373
     is currently incomplete. Currently just finds the signer's
     certificate and verifies the signature on the response.
     [Steve Henson]

4374
  *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4375 4376 4377 4378
     value of OPENSSLDIR.  This is available via the new '-d' option
     to 'openssl version', and is also included in 'openssl version -a'.
     [Bodo Moeller]

4379
  *) Allowing defining memory allocation callbacks that will be given
4380 4381 4382 4383 4384 4385 4386
     file name and line number information in additional arguments
     (a const char* and an int).  The basic functionality remains, as
     well as the original possibility to just replace malloc(),
     realloc() and free() by functions that do not know about these
     additional arguments.  To register and find out the current
     settings for extended allocation functions, the following
     functions are provided:
4387 4388 4389 4390 4391 4392

	CRYPTO_set_mem_ex_functions
	CRYPTO_set_locked_mem_ex_functions
	CRYPTO_get_mem_ex_functions
	CRYPTO_get_locked_mem_ex_functions

4393 4394 4395 4396 4397 4398
     These work the same way as CRYPTO_set_mem_functions and friends.
     CRYPTO_get_[locked_]mem_functions now writes 0 where such an
     extended allocation function is enabled.
     Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
     a conventional allocation function is enabled.
     [Richard Levitte, Bodo Moeller]
4399

4400
  *) Finish off removing the remaining LHASH function pointer casts.
4401
     There should no longer be any prototype-casting required when using
4402 4403 4404
     the LHASH abstraction, and any casts that remain are "bugs". See
     the callback types and macros at the head of lhash.h for details
     (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4405 4406
     [Geoff Thorpe]

4407
  *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4408 4409 4410 4411 4412 4413
     If /dev/[u]random devices are not available or do not return enough
     entropy, EGD style sockets (served by EGD or PRNGD) will automatically
     be queried.
     The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
     /etc/entropy will be queried once each in this sequence, quering stops
     when enough entropy was collected without querying more sockets.
4414 4415
     [Lutz Jaenicke]

4416
  *) Change the Unix RAND_poll() variant to be able to poll several
4417 4418 4419 4420 4421 4422 4423 4424
     random devices, as specified by DEVRANDOM, until a sufficient amount
     of data has been collected.   We spend at most 10 ms on each file
     (select timeout) and read in non-blocking mode.  DEVRANDOM now
     defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
     (previously it was just the string "/dev/urandom"), so on typical
     platforms the 10 ms delay will never occur.
     Also separate out the Unix variant to its own file, rand_unix.c.
     For VMS, there's a currently-empty rand_vms.c.
4425 4426
     [Richard Levitte]

4427
  *) Move OCSP client related routines to ocsp_cl.c. These
D
 
Dr. Stephen Henson 已提交
4428 4429 4430 4431 4432 4433 4434 4435 4436 4437 4438 4439 4440 4441 4442 4443 4444 4445 4446 4447 4448
     provide utility functions which an application needing
     to issue a request to an OCSP responder and analyse the
     response will typically need: as opposed to those which an
     OCSP responder itself would need which will be added later.

     OCSP_request_sign() signs an OCSP request with an API similar
     to PKCS7_sign(). OCSP_response_status() returns status of OCSP
     response. OCSP_response_get1_basic() extracts basic response
     from response. OCSP_resp_find_status(): finds and extracts status
     information from an OCSP_CERTID structure (which will be created
     when the request structure is built). These are built from lower
     level functions which work on OCSP_SINGLERESP structures but
     wont normally be used unless the application wishes to examine
     extensions in the OCSP response for example.

     Replace nonce routines with a pair of functions.
     OCSP_request_add1_nonce() adds a nonce value and optionally
     generates a random value. OCSP_check_nonce() checks the
     validity of the nonce in an OCSP response.
     [Steve Henson]

4449
  *) Change function OCSP_request_add() to OCSP_request_add0_id().
4450 4451 4452 4453 4454 4455 4456 4457 4458 4459
     This doesn't copy the supplied OCSP_CERTID and avoids the
     need to free up the newly created id. Change return type
     to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
     This can then be used to add extensions to the request.
     Deleted OCSP_request_new(), since most of its functionality
     is now in OCSP_REQUEST_new() (and the case insensitive name
     clash) apart from the ability to set the request name which
     will be added elsewhere.
     [Steve Henson]

4460
  *) Update OCSP API. Remove obsolete extensions argument from
D
Dr. Stephen Henson 已提交
4461 4462 4463 4464 4465
     various functions. Extensions are now handled using the new
     OCSP extension code. New simple OCSP HTTP function which 
     can be used to send requests and parse the response.
     [Steve Henson]

4466
  *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4467 4468 4469 4470 4471 4472 4473 4474 4475 4476 4477 4478
     ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
     uses the special reorder version of SET OF to sort the attributes
     and reorder them to match the encoded order. This resolves a long
     standing problem: a verify on a PKCS7 structure just after signing
     it used to fail because the attribute order did not match the
     encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
     it uses the received order. This is necessary to tolerate some broken
     software that does not order SET OF. This is handled by encoding
     as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
     to produce the required SET OF.
     [Steve Henson]

4479
  *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
R
Richard Levitte 已提交
4480 4481 4482 4483
     OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
     files to get correct declarations of the ASN.1 item variables.
     [Richard Levitte]

4484
  *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
D
 
Dr. Stephen Henson 已提交
4485 4486 4487 4488 4489 4490 4491
     PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
     asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
     NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
     New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
     ASN1_ITEM and no wrapper functions.
     [Steve Henson]

4492
  *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4493 4494 4495 4496
     replace the old function pointer based I/O routines. Change most of
     the *_d2i_bio() and *_d2i_fp() functions to use these.
     [Steve Henson]

4497
  *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
R
Richard Levitte 已提交
4498 4499 4500 4501
     lines, recognice more "algorithms" that can be deselected, and make
     it complain about algorithm deselection that isn't recognised.
     [Richard Levitte]

4502
  *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4503 4504 4505 4506
     unpack operations in terms of ASN1_ITEM. Modify existing wrappers
     to use new functions. Add NO_ASN1_OLD which can be set to remove
     some old style ASN1 functions: this can be used to determine if old
     code will still work when these eventually go away.
4507 4508
     [Steve Henson]

4509
  *) New extension functions for OCSP structures, these follow the
D
Dr. Stephen Henson 已提交
4510 4511 4512
     same conventions as certificates and CRLs.
     [Steve Henson]

4513
  *) New function X509V3_add1_i2d(). This automatically encodes and
4514 4515 4516 4517 4518
     adds an extension. Its behaviour can be customised with various
     flags to append, replace or delete. Various wrappers added for
     certifcates and CRLs.
     [Steve Henson]

4519
  *) Fix to avoid calling the underlying ASN1 print routine when
D
 
Dr. Stephen Henson 已提交
4520 4521 4522 4523
     an extension cannot be parsed. Correct a typo in the
     OCSP_SERVICELOC extension. Tidy up print OCSP format.
     [Steve Henson]

4524
  *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4525
     entries for variables.
D
 
Dr. Stephen Henson 已提交
4526
     [Steve Henson]
4527

4528
  *) Add functionality to apps/openssl.c for detecting locking
B
Bodo Möller 已提交
4529 4530 4531 4532 4533
     problems: As the program is single-threaded, all we have
     to do is register a locking callback using an array for
     storing which locks are currently held by the program.
     [Bodo Moeller]

4534
  *) Use a lock around the call to CRYPTO_get_ex_new_index() in
B
Bodo Möller 已提交
4535 4536 4537 4538 4539 4540 4541
     SSL_get_ex_data_X509_STORE_idx(), which is used in
     ssl_verify_cert_chain() and thus can be called at any time
     during TLS/SSL handshakes so that thread-safety is essential.
     Unfortunately, the ex_data design is not at all suited
     for multi-threaded use, so it probably should be abolished.
     [Bodo Moeller]

4542
  *) Added Broadcom "ubsec" ENGINE to OpenSSL.
G
Geoff Thorpe 已提交
4543 4544
     [Broadcom, tweaked and integrated by Geoff Thorpe]

4545
  *) Move common extension printing code to new function
4546
     X509V3_print_extensions(). Reorganise OCSP print routines and
4547
     implement some needed OCSP ASN1 functions. Add OCSP extensions.
4548 4549
     [Steve Henson]

4550
  *) New function X509_signature_print() to remove duplication in some
4551 4552 4553
     print routines.
     [Steve Henson]

4554
  *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4555 4556 4557 4558 4559 4560 4561
     set (this was treated exactly the same as SET OF previously). This
     is used to reorder the STACK representing the structure to match the
     encoding. This will be used to get round a problem where a PKCS7
     structure which was signed could not be verified because the STACK
     order did not reflect the encoded order.
     [Steve Henson]

4562
  *) Reimplement the OCSP ASN1 module using the new code.
4563 4564
     [Steve Henson]

4565
  *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
D
 
Dr. Stephen Henson 已提交
4566 4567 4568 4569
     for its ASN1 operations. The old style function pointers still exist
     for now but they will eventually go away.
     [Steve Henson]

4570
  *) Merge in replacement ASN1 code from the ASN1 branch. This almost
D
 
Dr. Stephen Henson 已提交
4571 4572 4573 4574 4575
     completely replaces the old ASN1 functionality with a table driven
     encoder and decoder which interprets an ASN1_ITEM structure describing
     the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
     largely maintained. Almost all of the old asn1_mac.h macro based ASN1
     has also been converted to the new form.
D
 
Dr. Stephen Henson 已提交
4576 4577
     [Steve Henson]

4578
  *) Change BN_mod_exp_recp so that negative moduli are tolerated
4579 4580 4581 4582 4583
     (the sign is ignored).  Similarly, ignore the sign in BN_MONT_CTX_set
     so that BN_mod_exp_mont and BN_mod_exp_mont_word work
     for negative moduli.
     [Bodo Moeller]

4584
  *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4585 4586 4587
     of not touching the result's sign bit.
     [Bodo Moeller]

4588
  *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
B
Bodo Möller 已提交
4589 4590 4591
     set.
     [Bodo Moeller]

4592
  *) Changed the LHASH code to use prototypes for callbacks, and created
G
Geoff Thorpe 已提交
4593 4594 4595 4596 4597
     macros to declare and implement thin (optionally static) functions
     that provide type-safety and avoid function pointer casting for the
     type-specific callbacks.
     [Geoff Thorpe]

4598
  *) Added Kerberos Cipher Suites to be used with TLS, as written in
B
Bodo Möller 已提交
4599
     RFC 2712.
4600
     [Veers Staats <staatsvr@asc.hpc.mil>,
U
Ulf Möller 已提交
4601
      Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4602

4603
  *) Reformat the FAQ so the different questions and answers can be divided
U
typo  
Ulf Möller 已提交
4604
     in sections depending on the subject.
4605 4606
     [Richard Levitte]

4607
  *) Have the zlib compression code load ZLIB.DLL dynamically under
4608 4609 4610
     Windows.
     [Richard Levitte]

4611
  *) New function BN_mod_sqrt for computing square roots modulo a prime
B
Bodo Möller 已提交
4612 4613 4614
     (using the probabilistic Tonelli-Shanks algorithm unless
     p == 3 (mod 4)  or  p == 5 (mod 8),  which are cases that can
     be handled deterministically).
B
Bodo Möller 已提交
4615 4616
     [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]

4617
  *) Make BN_mod_inverse faster by explicitly handling small quotients
B
Bodo Möller 已提交
4618 4619
     in the Euclid loop. (Speed gain about 20% for small moduli [256 or
     512 bits], about 30% for larger ones [1024 or 2048 bits].)
B
Bodo Möller 已提交
4620 4621
     [Bodo Moeller]

4622
  *) New function BN_kronecker.
B
Bodo Möller 已提交
4623 4624
     [Bodo Moeller]

4625
  *) Fix BN_gcd so that it works on negative inputs; the result is
B
Bodo Möller 已提交
4626 4627 4628 4629 4630 4631
     positive unless both parameters are zero.
     Previously something reasonably close to an infinite loop was
     possible because numbers could be growing instead of shrinking
     in the implementation of Euclid's algorithm.
     [Bodo Moeller]

4632
  *) Fix BN_is_word() and BN_is_one() macros to take into account the
B
Bodo Möller 已提交
4633 4634 4635 4636 4637 4638 4639 4640 4641 4642 4643
     sign of the number in question.

     Fix BN_is_word(a,w) to work correctly for w == 0.

     The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
     because its test if the absolute value of 'a' equals 'w'.
     Note that BN_abs_is_word does *not* handle w == 0 reliably;
     it exists mostly for use in the implementations of BN_is_zero(),
     BN_is_one(), and BN_is_word().
     [Bodo Moeller]

4644
  *) New function BN_swap.
B
Bodo Möller 已提交
4645 4646
     [Bodo Moeller]

4647
  *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
B
Bodo Möller 已提交
4648 4649 4650 4651
     the exponentiation functions are more likely to produce reasonable
     results on negative inputs.
     [Bodo Moeller]

4652
  *) Change BN_mod_mul so that the result is always non-negative.
B
Bodo Möller 已提交
4653 4654 4655 4656
     Previously, it could be negative if one of the factors was negative;
     I don't think anyone really wanted that behaviour.
     [Bodo Moeller]

4657
  *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
U
Ulf Möller 已提交
4658
     (except for exponentiation, which stays in crypto/bn/bn_exp.c,
B
Bodo Möller 已提交
4659 4660
     and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
     and add new functions:
B
Bodo Möller 已提交
4661

B
Bodo Möller 已提交
4662 4663 4664
          BN_nnmod
          BN_mod_sqr
          BN_mod_add
B
Bodo Möller 已提交
4665
          BN_mod_add_quick
B
Bodo Möller 已提交
4666
          BN_mod_sub
B
Bodo Möller 已提交
4667 4668 4669 4670 4671 4672
          BN_mod_sub_quick
          BN_mod_lshift1
          BN_mod_lshift1_quick
          BN_mod_lshift
          BN_mod_lshift_quick

B
Bodo Möller 已提交
4673
     These functions always generate non-negative results.
B
Bodo Möller 已提交
4674

B
Bodo Möller 已提交
4675 4676
     BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder  r
     such that  |m| < r < 0,  BN_nnmod will output  rem + |m|  instead).
B
Bodo Möller 已提交
4677 4678 4679 4680

     BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
     BN_mod_XXX(r, a, [b,] m, ctx), but requires that  a  [and  b]
     be reduced modulo  m.
B
Bodo Möller 已提交
4681 4682
     [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]

B
Bodo Möller 已提交
4683 4684 4685 4686 4687
#if 0
     The following entry accidentily appeared in the CHANGES file
     distributed with OpenSSL 0.9.7.  The modifications described in
     it do *not* apply to OpenSSL 0.9.7.

4688
  *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4689 4690
     was actually never needed) and in BN_mul().  The removal in BN_mul()
     required a small change in bn_mul_part_recursive() and the addition
U
Ulf Möller 已提交
4691 4692
     of the functions bn_cmp_part_words(), bn_sub_part_words() and
     bn_add_part_words(), which do the same thing as bn_cmp_words(),
4693 4694 4695
     bn_sub_words() and bn_add_words() except they take arrays with
     differing sizes.
     [Richard Levitte]
B
Bodo Möller 已提交
4696
#endif
4697

4698
  *) In 'openssl passwd', verify passwords read from the terminal
4699 4700 4701 4702 4703 4704 4705 4706 4707 4708 4709
     unless the '-salt' option is used (which usually means that
     verification would just waste user's time since the resulting
     hash is going to be compared with some given password hash)
     or the new '-noverify' option is used.

     This is an incompatible change, but it does not affect
     non-interactive use of 'openssl passwd' (passwords on the command
     line, '-stdin' option, '-in ...' option) and thus should not
     cause any problems.
     [Bodo Moeller]

4710
  *) Remove all references to RSAref, since there's no more need for it.
4711 4712
     [Richard Levitte]

4713
  *) Make DSO load along a path given through an environment variable
4714 4715 4716
     (SHLIB_PATH) with shl_load().
     [Richard Levitte]

4717
  *) Constify the ENGINE code as a result of BIGNUM constification.
R
Richard Levitte 已提交
4718 4719 4720 4721
     Also constify the RSA code and most things related to it.  In a
     few places, most notable in the depth of the ASN.1 code, ugly
     casts back to non-const were required (to be solved at a later
     time)
4722 4723
     [Richard Levitte]

4724
  *) Make it so the openssl application has all engines loaded by default.
4725 4726
     [Richard Levitte]

4727
  *) Constify the BIGNUM routines a little more.
4728 4729
     [Richard Levitte]

4730
  *) Add the following functions:
4731 4732 4733 4734 4735 4736 4737 4738 4739 4740 4741 4742 4743 4744 4745 4746 4747

	ENGINE_load_cswift()
	ENGINE_load_chil()
	ENGINE_load_atalla()
	ENGINE_load_nuron()
	ENGINE_load_builtin_engines()

     That way, an application can itself choose if external engines that
     are built-in in OpenSSL shall ever be used or not.  The benefit is
     that applications won't have to be linked with libdl or other dso
     libraries unless it's really needed.

     Changed 'openssl engine' to load all engines on demand.
     Changed the engine header files to avoid the duplication of some
     declarations (they differed!).
     [Richard Levitte]

4748
  *) 'openssl engine' can now list capabilities.
4749 4750
     [Richard Levitte]

4751
  *) Better error reporting in 'openssl engine'.
4752 4753
     [Richard Levitte]

4754
  *) Never call load_dh_param(NULL) in s_server.
4755 4756
     [Bodo Moeller]

4757
  *) Add engine application.  It can currently list engines by name and
4758 4759 4760
     identity, and test if they are actually available.
     [Richard Levitte]

4761
  *) Improve RPM specification file by forcing symbolic linking and making
R
Richard Levitte 已提交
4762 4763 4764
     sure the installed documentation is also owned by root.root.
     [Damien Miller <djm@mindrot.org>]

4765
  *) Give the OpenSSL applications more possibilities to make use of
R
Richard Levitte 已提交
4766 4767 4768
     keys (public as well as private) handled by engines.
     [Richard Levitte]

4769
  *) Add OCSP code that comes from CertCo.
R
Richard Levitte 已提交
4770 4771
     [Richard Levitte]

4772
  *) Add VMS support for the Rijndael code.
4773 4774
     [Richard Levitte]

4775
  *) Added untested support for Nuron crypto accelerator.
4776 4777
     [Ben Laurie]

4778
  *) Add support for external cryptographic devices.  This code was
4779 4780 4781
     previously distributed separately as the "engine" branch.
     [Geoff Thorpe, Richard Levitte]

4782
  *) Rework the filename-translation in the DSO code. It is now possible to
4783 4784 4785 4786 4787
     have far greater control over how a "name" is turned into a filename
     depending on the operating environment and any oddities about the
     different shared library filenames on each system.
     [Geoff Thorpe]

4788
  *) Support threads on FreeBSD-elf in Configure.
R
Richard Levitte 已提交
4789 4790
     [Richard Levitte]

4791
  *) Fix for SHA1 assembly problem with MASM: it produces
4792 4793 4794 4795 4796
     warnings about corrupt line number information when assembling
     with debugging information. This is caused by the overlapping
     of two sections.
     [Bernd Matthes <mainbug@celocom.de>, Steve Henson]

4797
  *) NCONF changes.
R
Richard Levitte 已提交
4798 4799 4800 4801 4802 4803 4804 4805 4806 4807
     NCONF_get_number() has no error checking at all.  As a replacement,
     NCONF_get_number_e() is defined (_e for "error checking") and is
     promoted strongly.  The old NCONF_get_number is kept around for
     binary backward compatibility.
     Make it possible for methods to load from something other than a BIO,
     by providing a function pointer that is given a name instead of a BIO.
     For example, this could be used to load configuration data from an
     LDAP server.
     [Richard Levitte]

4808
  *) Fix for non blocking accept BIOs. Added new I/O special reason
4809 4810 4811 4812 4813 4814
     BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
     with non blocking I/O was not possible because no retry code was
     implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
     this case.
     [Steve Henson]

4815
  *) Added the beginnings of Rijndael support.
4816 4817
     [Ben Laurie]

4818
  *) Fix for bug in DirectoryString mask setting. Add support for
4819 4820 4821 4822
     X509_NAME_print_ex() in 'req' and X509_print_ex() function
     to allow certificate printing to more controllable, additional
     'certopt' option to 'x509' to allow new printing options to be
     set.
4823 4824
     [Steve Henson]

4825
  *) Clean old EAY MD5 hack from e_os.h.
R
Richard Levitte 已提交
4826 4827
     [Richard Levitte]

4828
 Changes between 0.9.6l and 0.9.6m  [17 Mar 2004]
4829

4830
  *) Fix null-pointer assignment in do_change_cipher_spec() revealed
M
Mark J. Cox 已提交
4831
     by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4832
     [Joe Orton, Steve Henson]
4833

4834 4835 4836
 Changes between 0.9.6k and 0.9.6l  [04 Nov 2003]

  *) Fix additional bug revealed by the NISCC test suite:
4837

4838
     Stop bug triggering large recursion when presented with
M
Mark J. Cox 已提交
4839
     certain ASN.1 tags (CVE-2003-0851)
4840 4841
     [Steve Henson]

4842 4843
 Changes between 0.9.6j and 0.9.6k  [30 Sep 2003]

4844 4845 4846
  *) Fix various bugs revealed by running the NISCC test suite:

     Stop out of bounds reads in the ASN1 code when presented with
M
Mark J. Cox 已提交
4847
     invalid tags (CVE-2003-0543 and CVE-2003-0544).
4848 4849 4850 4851 4852
     
     If verify callback ignores invalid public key errors don't try to check
     certificate signature with the NULL public key.

     [Steve Henson]
4853

4854 4855 4856 4857 4858
  *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
     if the server requested one: as stated in TLS 1.0 and SSL 3.0
     specifications.
     [Steve Henson]

4859 4860 4861 4862 4863
  *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
     extra data after the compression methods not only for TLS 1.0
     but also for SSL 3.0 (as required by the specification).
     [Bodo Moeller; problem pointed out by Matthias Loepfe]

4864
  *) Change X509_certificate_type() to mark the key as exported/exportable
R
Richard Levitte 已提交
4865 4866
     when it's 512 *bits* long, not 512 bytes.
     [Richard Levitte]
4867

4868 4869 4870 4871 4872 4873 4874 4875 4876 4877 4878 4879 4880 4881 4882 4883 4884 4885 4886 4887 4888 4889 4890 4891 4892
 Changes between 0.9.6i and 0.9.6j  [10 Apr 2003]

  *) Countermeasure against the Klima-Pokorny-Rosa extension of
     Bleichbacher's attack on PKCS #1 v1.5 padding: treat
     a protocol version number mismatch like a decryption error
     in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
     [Bodo Moeller]

  *) Turn on RSA blinding by default in the default implementation
     to avoid a timing attack. Applications that don't want it can call
     RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
     They would be ill-advised to do so in most cases.
     [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]

  *) Change RSA blinding code so that it works when the PRNG is not
     seeded (in this case, the secret RSA exponent is abused as
     an unpredictable seed -- if it is not unpredictable, there
     is no point in blinding anyway).  Make RSA blinding thread-safe
     by remembering the creator's thread ID in rsa->blinding and
     having all other threads use local one-time blinding factors
     (this requires more computation than sharing rsa->blinding, but
     avoids excessive locking; and if an RSA object is not shared
     between threads, blinding will still be very fast).
     [Bodo Moeller]

4893 4894 4895 4896 4897 4898
 Changes between 0.9.6h and 0.9.6i  [19 Feb 2003]

  *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
     via timing by performing a MAC computation even if incorrrect
     block cipher padding has been found.  This is a countermeasure
     against active attacks where the attacker has to distinguish
M
Mark J. Cox 已提交
4899
     between bad padding and a MAC verification error. (CVE-2003-0078)
4900 4901 4902 4903 4904

     [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
     Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
     Martin Vuagnoux (EPFL, Ilion)]

4905
 Changes between 0.9.6g and 0.9.6h  [5 Dec 2002]
D
 
Dr. Stephen Henson 已提交
4906

4907 4908 4909 4910 4911 4912 4913 4914
  *) New function OPENSSL_cleanse(), which is used to cleanse a section of
     memory from it's contents.  This is done with a counter that will
     place alternating values in each byte.  This can be used to solve
     two issues: 1) the removal of calls to memset() by highly optimizing
     compilers, and 2) cleansing with other values than 0, since those can
     be read through on certain media, for example a swap space on disk.
     [Geoff Thorpe]

4915 4916 4917 4918 4919 4920 4921
  *) Bugfix: client side session caching did not work with external caching,
     because the session->cipher setting was not restored when reloading
     from the external cache. This problem was masked, when
     SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
     (Found by Steve Haslam <steve@araqnid.ddts.net>.)
     [Lutz Jaenicke]

4922 4923 4924 4925
  *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
     length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
     [Zeev Lieber <zeev-l@yahoo.com>]

4926 4927 4928 4929 4930 4931
  *) Undo an undocumented change introduced in 0.9.6e which caused
     repeated calls to OpenSSL_add_all_ciphers() and 
     OpenSSL_add_all_digests() to be ignored, even after calling
     EVP_cleanup().
     [Richard Levitte]

4932 4933 4934 4935
  *) Change the default configuration reader to deal with last line not
     being properly terminated.
     [Richard Levitte]

4936 4937 4938 4939 4940
  *) Change X509_NAME_cmp() so it applies the special rules on handling
     DN values that are of type PrintableString, as well as RDNs of type
     emailAddress where the value has the type ia5String.
     [stefank@valicert.com via Richard Levitte]

4941 4942 4943 4944 4945 4946 4947 4948 4949 4950
  *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
     the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
     doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
     the bitwise-OR of the two for use by the majority of applications
     wanting this behaviour, and update the docs. The documented
     behaviour and actual behaviour were inconsistent and had been
     changing anyway, so this is more a bug-fix than a behavioural
     change.
     [Geoff Thorpe, diagnosed by Nadav Har'El]

4951 4952 4953 4954
  *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
     (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
     [Bodo Moeller]

B
Bodo Möller 已提交
4955
  *) Fix initialization code race conditions in
B
Bodo Möller 已提交
4956 4957 4958 4959
        SSLv23_method(),  SSLv23_client_method(),   SSLv23_server_method(),
        SSLv2_method(),   SSLv2_client_method(),    SSLv2_server_method(),
        SSLv3_method(),   SSLv3_client_method(),    SSLv3_server_method(),
        TLSv1_method(),   TLSv1_client_method(),    TLSv1_server_method(),
B
Bodo Möller 已提交
4960 4961
        ssl2_get_cipher_by_char(),
        ssl3_get_cipher_by_char().
B
Bodo Möller 已提交
4962
     [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
B
Bodo Möller 已提交
4963

4964 4965 4966 4967 4968 4969
  *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
     the cached sessions are flushed, as the remove_cb() might use ex_data
     contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
     (see [openssl.org #212]).
     [Geoff Thorpe, Lutz Jaenicke]

D
 
Dr. Stephen Henson 已提交
4970 4971 4972 4973
  *) Fix typo in OBJ_txt2obj which incorrectly passed the content
     length, instead of the encoding length to d2i_ASN1_OBJECT.
     [Steve Henson]

B
Bodo Möller 已提交
4974
 Changes between 0.9.6f and 0.9.6g  [9 Aug 2002]
R
Richard Levitte 已提交
4975

B
Bodo Möller 已提交
4976 4977 4978
  *) [In 0.9.6g-engine release:]
     Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
     [Lynn Gazis <lgazis@rainbow.com>]
R
Richard Levitte 已提交
4979 4980

 Changes between 0.9.6e and 0.9.6f  [8 Aug 2002]
B
Bodo Möller 已提交
4981

4982 4983 4984 4985 4986 4987
  *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
     and get fix the header length calculation.
     [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
	Alon Kantor <alonk@checkpoint.com> (and others),
	Steve Henson]

B
Bodo Möller 已提交
4988 4989 4990 4991
  *) Use proper error handling instead of 'assertions' in buffer
     overflow checks added in 0.9.6e.  This prevents DoS (the
     assertions could call abort()).
     [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4992

4993 4994 4995 4996 4997 4998 4999
 Changes between 0.9.6d and 0.9.6e  [30 Jul 2002]

  *) Add various sanity checks to asn1_get_length() to reject
     the ASN1 length bytes if they exceed sizeof(long), will appear
     negative or the content length exceeds the length of the
     supplied buffer.
     [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
B
Bodo Möller 已提交
5000

5001 5002 5003 5004 5005
  *) Fix cipher selection routines: ciphers without encryption had no flags
     for the cipher strength set and where therefore not handled correctly
     by the selection routines (PR #130).
     [Lutz Jaenicke]

B
Bodo Möller 已提交
5006 5007 5008
  *) Fix EVP_dsa_sha macro.
     [Nils Larsch]

5009 5010 5011 5012 5013 5014 5015 5016 5017 5018 5019 5020 5021
  *) New option
          SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
     for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
     that was added in OpenSSL 0.9.6d.

     As the countermeasure turned out to be incompatible with some
     broken SSL implementations, the new option is part of SSL_OP_ALL.
     SSL_OP_ALL is usually employed when compatibility with weird SSL
     implementations is desired (e.g. '-bugs' option to 's_client' and
     's_server'), so the new option is automatically set in many
     applications.
     [Bodo Moeller]

5022 5023 5024 5025 5026 5027 5028 5029 5030 5031
  *) Changes in security patch:

     Changes marked "(CHATS)" were sponsored by the Defense Advanced
     Research Projects Agency (DARPA) and Air Force Research Laboratory,
     Air Force Materiel Command, USAF, under agreement number
     F30602-01-2-0537.

  *) Add various sanity checks to asn1_get_length() to reject
     the ASN1 length bytes if they exceed sizeof(long), will appear
     negative or the content length exceeds the length of the
M
Mark J. Cox 已提交
5032
     supplied buffer. (CVE-2002-0659)
5033 5034 5035 5036 5037 5038 5039
     [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]

  *) Assertions for various potential buffer overflows, not known to
     happen in practice.
     [Ben Laurie (CHATS)]

  *) Various temporary buffers to hold ASCII versions of integers were
M
Mark J. Cox 已提交
5040
     too small for 64 bit platforms. (CVE-2002-0655)
5041 5042 5043
     [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>

  *) Remote buffer overflow in SSL3 protocol - an attacker could
M
Mark J. Cox 已提交
5044
     supply an oversized session ID to a client. (CVE-2002-0656)
5045 5046 5047
     [Ben Laurie (CHATS)]

  *) Remote buffer overflow in SSL2 protocol - an attacker could
M
Mark J. Cox 已提交
5048
     supply an oversized client master key. (CVE-2002-0656)
5049 5050
     [Ben Laurie (CHATS)]

B
Bodo Möller 已提交
5051
 Changes between 0.9.6c and 0.9.6d  [9 May 2002]
5052

5053 5054 5055 5056
  *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
     encoded as NULL) with id-dsa-with-sha1.
     [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]

B
Bodo Möller 已提交
5057 5058 5059
  *) Check various X509_...() return values in apps/req.c.
     [Nils Larsch <nla@trustcenter.de>]

5060 5061 5062 5063 5064 5065 5066 5067
  *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
     an end-of-file condition would erronously be flagged, when the CRLF
     was just at the end of a processed block. The bug was discovered when
     processing data through a buffering memory BIO handing the data to a
     BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
     <ptsekov@syntrex.com> and Nedelcho Stanev.
     [Lutz Jaenicke]

5068 5069 5070 5071 5072 5073 5074 5075 5076 5077 5078 5079 5080 5081 5082 5083
  *) Implement a countermeasure against a vulnerability recently found
     in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
     before application data chunks to avoid the use of known IVs
     with data potentially chosen by the attacker.
     [Bodo Moeller]

  *) Fix length checks in ssl3_get_client_hello().
     [Bodo Moeller]

  *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
     to prevent ssl3_read_internal() from incorrectly assuming that
     ssl3_read_bytes() found application data while handshake
     processing was enabled when in fact s->s3->in_read_app_data was
     merely automatically cleared during the initial handshake.
     [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]

5084 5085 5086 5087 5088 5089 5090 5091 5092 5093 5094 5095 5096 5097 5098 5099 5100 5101 5102 5103 5104 5105 5106 5107 5108 5109 5110 5111 5112 5113 5114 5115 5116 5117 5118 5119 5120 5121 5122 5123 5124 5125 5126 5127 5128 5129 5130 5131 5132 5133 5134 5135 5136 5137 5138 5139 5140
  *) Fix object definitions for Private and Enterprise: they were not
     recognized in their shortname (=lowercase) representation. Extend
     obj_dat.pl to issue an error when using undefined keywords instead
     of silently ignoring the problem (Svenning Sorensen
     <sss@sss.dnsalias.net>).
     [Lutz Jaenicke]

  *) Fix DH_generate_parameters() so that it works for 'non-standard'
     generators, i.e. generators other than 2 and 5.  (Previously, the
     code did not properly initialise the 'add' and 'rem' values to
     BN_generate_prime().)

     In the new general case, we do not insist that 'generator' is
     actually a primitive root: This requirement is rather pointless;
     a generator of the order-q subgroup is just as good, if not
     better.
     [Bodo Moeller]
 
  *) Map new X509 verification errors to alerts. Discovered and submitted by
     Tom Wu <tom@arcot.com>.
     [Lutz Jaenicke]

  *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
     returning non-zero before the data has been completely received
     when using non-blocking I/O.
     [Bodo Moeller; problem pointed out by John Hughes]

  *) Some of the ciphers missed the strength entry (SSL_LOW etc).
     [Ben Laurie, Lutz Jaenicke]

  *) Fix bug in SSL_clear(): bad sessions were not removed (found by
     Yoram Zahavi <YoramZ@gilian.com>).
     [Lutz Jaenicke]

  *) Add information about CygWin 1.3 and on, and preserve proper
     configuration for the versions before that.
     [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]

  *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
     check whether we deal with a copy of a session and do not delete from
     the cache in this case. Problem reported by "Izhar Shoshani Levi"
     <izhar@checkpoint.com>.
     [Lutz Jaenicke]

  *) Do not store session data into the internal session cache, if it
     is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
     flag is set). Proposed by Aslam <aslam@funk.com>.
     [Lutz Jaenicke]

  *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
     value is 0.
     [Richard Levitte]

  *) [In 0.9.6d-engine release:]
     Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
     [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]

5141 5142 5143
  *) Add the configuration target linux-s390x.
     [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]

5144 5145 5146 5147 5148 5149 5150 5151 5152 5153 5154 5155 5156 5157 5158 5159 5160 5161 5162 5163 5164 5165 5166 5167 5168 5169 5170 5171 5172 5173 5174 5175 5176 5177 5178 5179 5180 5181 5182 5183 5184 5185 5186 5187 5188 5189 5190 5191 5192 5193 5194 5195 5196 5197 5198 5199 5200 5201 5202 5203 5204 5205 5206 5207 5208 5209 5210 5211 5212 5213 5214 5215 5216 5217 5218 5219 5220 5221 5222 5223 5224 5225 5226 5227 5228 5229 5230 5231 5232 5233 5234 5235 5236 5237 5238 5239 5240 5241 5242 5243 5244 5245 5246 5247 5248 5249 5250 5251 5252 5253 5254 5255 5256 5257 5258 5259 5260 5261 5262 5263 5264 5265 5266 5267 5268 5269 5270 5271 5272 5273 5274 5275 5276 5277 5278 5279 5280 5281 5282 5283 5284 5285 5286 5287 5288 5289 5290 5291 5292 5293 5294 5295 5296 5297 5298 5299 5300 5301 5302 5303 5304 5305 5306 5307 5308 5309 5310 5311 5312 5313 5314 5315 5316 5317 5318 5319 5320 5321 5322 5323 5324 5325 5326 5327 5328 5329 5330 5331 5332 5333 5334 5335 5336 5337 5338 5339 5340 5341 5342 5343 5344 5345 5346 5347 5348 5349 5350 5351 5352 5353 5354 5355 5356 5357 5358 5359 5360 5361 5362 5363 5364 5365 5366 5367 5368 5369 5370 5371 5372 5373 5374 5375 5376 5377 5378 5379 5380 5381 5382 5383 5384 5385 5386 5387 5388 5389 5390 5391 5392 5393 5394 5395 5396 5397 5398 5399 5400 5401 5402 5403 5404 5405 5406 5407 5408 5409 5410 5411 5412 5413 5414 5415 5416 5417 5418 5419 5420 5421 5422 5423 5424 5425 5426 5427 5428 5429 5430 5431 5432 5433 5434 5435 5436 5437 5438 5439 5440 5441 5442 5443 5444 5445 5446 5447 5448 5449 5450 5451 5452 5453 5454 5455 5456 5457 5458 5459 5460 5461 5462 5463 5464 5465 5466 5467 5468 5469 5470 5471 5472 5473 5474 5475 5476 5477 5478 5479 5480 5481 5482 5483 5484 5485 5486 5487 5488 5489 5490 5491 5492 5493 5494 5495 5496 5497 5498 5499 5500 5501 5502 5503 5504 5505 5506 5507 5508 5509 5510 5511 5512 5513 5514 5515 5516 5517 5518 5519 5520 5521 5522 5523 5524 5525 5526 5527 5528 5529 5530 5531 5532 5533 5534 5535 5536 5537 5538 5539 5540 5541 5542 5543 5544 5545 5546 5547 5548 5549 5550 5551 5552 5553 5554 5555 5556 5557 5558 5559 5560 5561 5562 5563 5564 5565 5566 5567 5568 5569 5570 5571 5572 5573 5574 5575 5576 5577 5578 5579 5580 5581 5582 5583 5584 5585 5586 5587 5588 5589 5590 5591 5592 5593 5594 5595 5596 5597 5598 5599 5600 5601 5602 5603 5604 5605 5606 5607 5608 5609 5610 5611 5612 5613 5614 5615 5616 5617 5618 5619 5620 5621 5622 5623 5624 5625 5626 5627 5628 5629 5630 5631 5632 5633 5634 5635 5636 5637 5638 5639 5640 5641 5642 5643 5644 5645 5646 5647 5648 5649 5650 5651 5652 5653 5654 5655 5656 5657 5658 5659 5660 5661 5662 5663 5664 5665 5666 5667 5668 5669 5670 5671 5672 5673 5674 5675 5676 5677 5678 5679 5680 5681 5682 5683 5684 5685 5686 5687 5688 5689 5690 5691 5692 5693 5694 5695 5696 5697 5698 5699 5700 5701 5702 5703 5704 5705 5706 5707 5708 5709 5710 5711 5712 5713 5714 5715 5716 5717 5718 5719 5720 5721 5722 5723 5724 5725 5726 5727 5728 5729 5730 5731 5732 5733 5734 5735 5736 5737 5738 5739 5740 5741 5742 5743 5744 5745 5746 5747 5748 5749 5750 5751 5752 5753 5754 5755 5756 5757 5758 5759 5760 5761 5762 5763 5764 5765 5766 5767 5768 5769 5770 5771 5772 5773 5774 5775 5776 5777 5778 5779 5780 5781 5782 5783 5784 5785 5786 5787 5788 5789 5790 5791
  *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
     ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
     variable as an indication that a ClientHello message has been
     received.  As the flag value will be lost between multiple
     invocations of ssl3_accept when using non-blocking I/O, the
     function may not be aware that a handshake has actually taken
     place, thus preventing a new session from being added to the
     session cache.

     To avoid this problem, we now set s->new_session to 2 instead of
     using a local variable.
     [Lutz Jaenicke, Bodo Moeller]

  *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
     if the SSL_R_LENGTH_MISMATCH error is detected.
     [Geoff Thorpe, Bodo Moeller]

  *) New 'shared_ldflag' column in Configure platform table.
     [Richard Levitte]

  *) Fix EVP_CIPHER_mode macro.
     ["Dan S. Camper" <dan@bti.net>]

  *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
     type, we must throw them away by setting rr->length to 0.
     [D P Chang <dpc@qualys.com>]

 Changes between 0.9.6b and 0.9.6c  [21 dec 2001]

  *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
     <Dominikus.Scherkl@biodata.com>.  (The previous implementation
     worked incorrectly for those cases where  range = 10..._2  and
     3*range  is two bits longer than  range.)
     [Bodo Moeller]

  *) Only add signing time to PKCS7 structures if it is not already
     present.
     [Steve Henson]

  *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
     OBJ_ld_ce should be OBJ_id_ce.
     Also some ip-pda OIDs in crypto/objects/objects.txt were
     incorrect (cf. RFC 3039).
     [Matt Cooper, Frederic Giudicelli, Bodo Moeller]

  *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
     returns early because it has nothing to do.
     [Andy Schneider <andy.schneider@bjss.co.uk>]

  *) [In 0.9.6c-engine release:]
     Fix mutex callback return values in crypto/engine/hw_ncipher.c.
     [Andy Schneider <andy.schneider@bjss.co.uk>]

  *) [In 0.9.6c-engine release:]
     Add support for Cryptographic Appliance's keyserver technology.
     (Use engine 'keyclient')
     [Cryptographic Appliances and Geoff Thorpe]

  *) Add a configuration entry for OS/390 Unix.  The C compiler 'c89'
     is called via tools/c89.sh because arguments have to be
     rearranged (all '-L' options must appear before the first object
     modules).
     [Richard Shapiro <rshapiro@abinitio.com>]

  *) [In 0.9.6c-engine release:]
     Add support for Broadcom crypto accelerator cards, backported
     from 0.9.7.
     [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]

  *) [In 0.9.6c-engine release:]
     Add support for SureWare crypto accelerator cards from 
     Baltimore Technologies.  (Use engine 'sureware')
     [Baltimore Technologies and Mark Cox]

  *) [In 0.9.6c-engine release:]
     Add support for crypto accelerator cards from Accelerated
     Encryption Processing, www.aep.ie.  (Use engine 'aep')
     [AEP Inc. and Mark Cox]

  *) Add a configuration entry for gcc on UnixWare.
     [Gary Benson <gbenson@redhat.com>]

  *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
     messages are stored in a single piece (fixed-length part and
     variable-length part combined) and fix various bugs found on the way.
     [Bodo Moeller]

  *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
     instead.  BIO_gethostbyname() does not know what timeouts are
     appropriate, so entries would stay in cache even when they have
     become invalid.
     [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>

  *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
     faced with a pathologically small ClientHello fragment that does
     not contain client_version: Instead of aborting with an error,
     simply choose the highest available protocol version (i.e.,
     TLS 1.0 unless it is disabled).  In practice, ClientHello
     messages are never sent like this, but this change gives us
     strictly correct behaviour at least for TLS.
     [Bodo Moeller]

  *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
     never resets s->method to s->ctx->method when called from within
     one of the SSL handshake functions.
     [Bodo Moeller; problem pointed out by Niko Baric]

  *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
     (sent using the client's version number) if client_version is
     smaller than the protocol version in use.  Also change
     ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
     the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
     the client will at least see that alert.
     [Bodo Moeller]

  *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
     correctly.
     [Bodo Moeller]

  *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
     client receives HelloRequest while in a handshake.
     [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]

  *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
     should end in 'break', not 'goto end' which circuments various
     cleanups done in state SSL_ST_OK.   But session related stuff
     must be disabled for SSL_ST_OK in the case that we just sent a
     HelloRequest.

     Also avoid some overhead by not calling ssl_init_wbio_buffer()
     before just sending a HelloRequest.
     [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]

  *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
     reveal whether illegal block cipher padding was found or a MAC
     verification error occured.  (Neither SSLerr() codes nor alerts
     are directly visible to potential attackers, but the information
     may leak via logfiles.)

     Similar changes are not required for the SSL 2.0 implementation
     because the number of padding bytes is sent in clear for SSL 2.0,
     and the extra bytes are just ignored.  However ssl/s2_pkt.c
     failed to verify that the purported number of padding bytes is in
     the legal range.
     [Bodo Moeller]

  *) Add OpenUNIX-8 support including shared libraries
     (Boyd Lynn Gerber <gerberb@zenez.com>).
     [Lutz Jaenicke]

  *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
     'wristwatch attack' using huge encoding parameters (cf.
     James H. Manger's CRYPTO 2001 paper).  Note that the
     RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
     encoding parameters and hence was not vulnerable.
     [Bodo Moeller]

  *) BN_sqr() bug fix.
     [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]

  *) Rabin-Miller test analyses assume uniformly distributed witnesses,
     so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
     followed by modular reduction.
     [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]

  *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
     equivalent based on BN_pseudo_rand() instead of BN_rand().
     [Bodo Moeller]

  *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
     This function was broken, as the check for a new client hello message
     to handle SGC did not allow these large messages.
     (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
     [Lutz Jaenicke]

  *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
     [Lutz Jaenicke]

  *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
     for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
     [Lutz Jaenicke]

  *) Rework the configuration and shared library support for Tru64 Unix.
     The configuration part makes use of modern compiler features and
     still retains old compiler behavior for those that run older versions
     of the OS.  The shared library support part includes a variant that
     uses the RPATH feature, and is available through the special
     configuration target "alpha-cc-rpath", which will never be selected
     automatically.
     [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]

  *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
     with the same message size as in ssl3_get_certificate_request().
     Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
     messages might inadvertently be reject as too long.
     [Petr Lampa <lampa@fee.vutbr.cz>]

  *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
     [Andy Polyakov]

  *) Modified SSL library such that the verify_callback that has been set
     specificly for an SSL object with SSL_set_verify() is actually being
     used. Before the change, a verify_callback set with this function was
     ignored and the verify_callback() set in the SSL_CTX at the time of
     the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
     to allow the necessary settings.
     [Lutz Jaenicke]

  *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
     explicitly to NULL, as at least on Solaris 8 this seems not always to be
     done automatically (in contradiction to the requirements of the C
     standard). This made problems when used from OpenSSH.
     [Lutz Jaenicke]

  *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
     dh->length and always used

          BN_rand_range(priv_key, dh->p).

     BN_rand_range() is not necessary for Diffie-Hellman, and this
     specific range makes Diffie-Hellman unnecessarily inefficient if
     dh->length (recommended exponent length) is much smaller than the
     length of dh->p.  We could use BN_rand_range() if the order of
     the subgroup was stored in the DH structure, but we only have
     dh->length.

     So switch back to

          BN_rand(priv_key, l, ...)

     where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
     otherwise.
     [Bodo Moeller]

  *) In

          RSA_eay_public_encrypt
          RSA_eay_private_decrypt
          RSA_eay_private_encrypt (signing)
          RSA_eay_public_decrypt (signature verification)

     (default implementations for RSA_public_encrypt,
     RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
     always reject numbers >= n.
     [Bodo Moeller]

  *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
     to synchronize access to 'locking_thread'.  This is necessary on
     systems where access to 'locking_thread' (an 'unsigned long'
     variable) is not atomic.
     [Bodo Moeller]

  *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
     *before* setting the 'crypto_lock_rand' flag.  The previous code had
     a race condition if 0 is a valid thread ID.
     [Travis Vitek <vitek@roguewave.com>]

  *) Add support for shared libraries under Irix.
     [Albert Chin-A-Young <china@thewrittenword.com>]

  *) Add configuration option to build on Linux on both big-endian and
     little-endian MIPS.
     [Ralf Baechle <ralf@uni-koblenz.de>]

  *) Add the possibility to create shared libraries on HP-UX.
     [Richard Levitte]

 Changes between 0.9.6a and 0.9.6b  [9 Jul 2001]

  *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
     to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
     Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
     PRNG state recovery was possible based on the output of
     one PRNG request appropriately sized to gain knowledge on
     'md' followed by enough consecutive 1-byte PRNG requests
     to traverse all of 'state'.

     1. When updating 'md_local' (the current thread's copy of 'md')
        during PRNG output generation, hash all of the previous
        'md_local' value, not just the half used for PRNG output.

     2. Make the number of bytes from 'state' included into the hash
        independent from the number of PRNG bytes requested.

     The first measure alone would be sufficient to avoid
     Markku-Juhani's attack.  (Actually it had never occurred
     to me that the half of 'md_local' used for chaining was the
     half from which PRNG output bytes were taken -- I had always
     assumed that the secret half would be used.)  The second
     measure makes sure that additional data from 'state' is never
     mixed into 'md_local' in small portions; this heuristically
     further strengthens the PRNG.
     [Bodo Moeller]

  *) Fix crypto/bn/asm/mips3.s.
     [Andy Polyakov]

  *) When only the key is given to "enc", the IV is undefined. Print out
     an error message in this case.
     [Lutz Jaenicke]

  *) Handle special case when X509_NAME is empty in X509 printing routines.
     [Steve Henson]

  *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
     positive and less than q.
     [Bodo Moeller]

  *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
     used: it isn't thread safe and the add_lock_callback should handle
     that itself.
     [Paul Rose <Paul.Rose@bridge.com>]

  *) Verify that incoming data obeys the block size in
     ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
     [Bodo Moeller]

  *) Fix OAEP check.
     [Ulf Möller, Bodo Möller]

  *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
     RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
     when fixing the server behaviour for backwards-compatible 'client
     hello' messages.  (Note that the attack is impractical against
     SSL 3.0 and TLS 1.0 anyway because length and version checking
     means that the probability of guessing a valid ciphertext is
     around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
     paper.)

     Before 0.9.5, the countermeasure (hide the error by generating a
     random 'decryption result') did not work properly because
     ERR_clear_error() was missing, meaning that SSL_get_error() would
     detect the supposedly ignored error.

     Both problems are now fixed.
     [Bodo Moeller]

  *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
     (previously it was 1024).
     [Bodo Moeller]

  *) Fix for compatibility mode trust settings: ignore trust settings
     unless some valid trust or reject settings are present.
     [Steve Henson]

  *) Fix for blowfish EVP: its a variable length cipher.
     [Steve Henson]

  *) Fix various bugs related to DSA S/MIME verification. Handle missing
     parameters in DSA public key structures and return an error in the
     DSA routines if parameters are absent.
     [Steve Henson]

  *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
     in the current directory if neither $RANDFILE nor $HOME was set.
     RAND_file_name() in 0.9.6a returned NULL in this case.  This has
     caused some confusion to Windows users who haven't defined $HOME.
     Thus RAND_file_name() is changed again: e_os.h can define a
     DEFAULT_HOME, which will be used if $HOME is not set.
     For Windows, we use "C:"; on other platforms, we still require
     environment variables.

  *) Move 'if (!initialized) RAND_poll()' into regions protected by
     CRYPTO_LOCK_RAND.  This is not strictly necessary, but avoids
     having multiple threads call RAND_poll() concurrently.
     [Bodo Moeller]

  *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
     combination of a flag and a thread ID variable.
     Otherwise while one thread is in ssleay_rand_bytes (which sets the
     flag), *other* threads can enter ssleay_add_bytes without obeying
     the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
     that they do not hold after the first thread unsets add_do_not_lock).
     [Bodo Moeller]

  *) Change bctest again: '-x' expressions are not available in all
     versions of 'test'.
     [Bodo Moeller]

 Changes between 0.9.6 and 0.9.6a  [5 Apr 2001]

  *) Fix a couple of memory leaks in PKCS7_dataDecode()
     [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]

  *) Change Configure and Makefiles to provide EXE_EXT, which will contain
     the default extension for executables, if any.  Also, make the perl
     scripts that use symlink() to test if it really exists and use "cp"
     if it doesn't.  All this made OpenSSL compilable and installable in
     CygWin.
     [Richard Levitte]

  *) Fix for asn1_GetSequence() for indefinite length constructed data.
     If SEQUENCE is length is indefinite just set c->slen to the total
     amount of data available.
     [Steve Henson, reported by shige@FreeBSD.org]
     [This change does not apply to 0.9.7.]

  *) Change bctest to avoid here-documents inside command substitution
     (workaround for FreeBSD /bin/sh bug).
     For compatibility with Ultrix, avoid shell functions (introduced
     in the bctest version that searches along $PATH).
     [Bodo Moeller]

  *) Rename 'des_encrypt' to 'des_encrypt1'.  This avoids the clashes
     with des_encrypt() defined on some operating systems, like Solaris
     and UnixWare.
     [Richard Levitte]

  *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
     On the Importance of Eliminating Errors in Cryptographic
     Computations, J. Cryptology 14 (2001) 2, 101-119,
     http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
     [Ulf Moeller]
  
  *) MIPS assembler BIGNUM division bug fix. 
     [Andy Polyakov]

  *) Disabled incorrect Alpha assembler code.
     [Richard Levitte]

  *) Fix PKCS#7 decode routines so they correctly update the length
     after reading an EOC for the EXPLICIT tag.
     [Steve Henson]
     [This change does not apply to 0.9.7.]

  *) Fix bug in PKCS#12 key generation routines. This was triggered
     if a 3DES key was generated with a 0 initial byte. Include
     PKCS12_BROKEN_KEYGEN compilation option to retain the old
     (but broken) behaviour.
     [Steve Henson]

  *) Enhance bctest to search for a working bc along $PATH and print
     it when found.
     [Tim Rice <tim@multitalents.net> via Richard Levitte]

  *) Fix memory leaks in err.c: free err_data string if necessary;
     don't write to the wrong index in ERR_set_error_data.
     [Bodo Moeller]

  *) Implement ssl23_peek (analogous to ssl23_read), which previously
     did not exist.
     [Bodo Moeller]

  *) Replace rdtsc with _emit statements for VC++ version 5.
     [Jeremy Cooper <jeremy@baymoo.org>]

  *) Make it possible to reuse SSLv2 sessions.
     [Richard Levitte]

  *) In copy_email() check for >= 0 as a return value for
     X509_NAME_get_index_by_NID() since 0 is a valid index.
     [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]

  *) Avoid coredump with unsupported or invalid public keys by checking if
     X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
     PKCS7_verify() fails with non detached data.
     [Steve Henson]

  *) Don't use getenv in library functions when run as setuid/setgid.
     New function OPENSSL_issetugid().
     [Ulf Moeller]

  *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
     due to incorrect handling of multi-threading:

     1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().

     2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().

     3. Count how many times MemCheck_off() has been called so that
        nested use can be treated correctly.  This also avoids 
        inband-signalling in the previous code (which relied on the
        assumption that thread ID 0 is impossible).
     [Bodo Moeller]

  *) Add "-rand" option also to s_client and s_server.
     [Lutz Jaenicke]

  *) Fix CPU detection on Irix 6.x.
     [Kurt Hockenbury <khockenb@stevens-tech.edu> and
      "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]

  *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
     was empty.
     [Steve Henson]
     [This change does not apply to 0.9.7.]

  *) Use the cached encoding of an X509_NAME structure rather than
     copying it. This is apparently the reason for the libsafe "errors"
     but the code is actually correct.
     [Steve Henson]

  *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
     Bleichenbacher's DSA attack.
     Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
     to be set and top=0 forces the highest bit to be set; top=-1 is new
     and leaves the highest bit random.
     [Ulf Moeller, Bodo Moeller]

  *) In the NCONF_...-based implementations for CONF_... queries
     (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
     a temporary CONF structure with the data component set to NULL
     (which gives segmentation faults in lh_retrieve).
     Instead, use NULL for the CONF pointer in CONF_get_string and
     CONF_get_number (which may use environment variables) and directly
     return NULL from CONF_get_section.
     [Bodo Moeller]

  *) Fix potential buffer overrun for EBCDIC.
     [Ulf Moeller]

  *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
     keyUsage if basicConstraints absent for a CA.
     [Steve Henson]

  *) Make SMIME_write_PKCS7() write mail header values with a format that
     is more generally accepted (no spaces before the semicolon), since
     some programs can't parse those values properly otherwise.  Also make
     sure BIO's that break lines after each write do not create invalid
     headers.
     [Richard Levitte]

  *) Make the CRL encoding routines work with empty SEQUENCE OF. The
     macros previously used would not encode an empty SEQUENCE OF
     and break the signature.
     [Steve Henson]
     [This change does not apply to 0.9.7.]

  *) Zero the premaster secret after deriving the master secret in
     DH ciphersuites.
     [Steve Henson]

  *) Add some EVP_add_digest_alias registrations (as found in
     OpenSSL_add_all_digests()) to SSL_library_init()
     aka OpenSSL_add_ssl_algorithms().  This provides improved
     compatibility with peers using X.509 certificates
     with unconventional AlgorithmIdentifier OIDs.
     [Bodo Moeller]

  *) Fix for Irix with NO_ASM.
     ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]

  *) ./config script fixes.
     [Ulf Moeller, Richard Levitte]

  *) Fix 'openssl passwd -1'.
     [Bodo Moeller]

  *) Change PKCS12_key_gen_asc() so it can cope with non null
     terminated strings whose length is passed in the passlen
     parameter, for example from PEM callbacks. This was done
     by adding an extra length parameter to asc2uni().
     [Steve Henson, reported by <oddissey@samsung.co.kr>]

  *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
     call failed, free the DSA structure.
     [Bodo Moeller]

  *) Fix to uni2asc() to cope with zero length Unicode strings.
     These are present in some PKCS#12 files.
     [Steve Henson]

  *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
     Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
     when writing a 32767 byte record.
     [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]

  *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
     obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.

     (RSA objects have a reference count access to which is protected
     by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
     so they are meant to be shared between threads.)
     [Bodo Moeller, Geoff Thorpe; original patch submitted by
     "Reddie, Steven" <Steven.Reddie@ca.com>]

  *) Fix a deadlock in CRYPTO_mem_leaks().
     [Bodo Moeller]

  *) Use better test patterns in bntest.
     [Ulf Möller]

  *) rand_win.c fix for Borland C.
     [Ulf Möller]
 
  *) BN_rshift bugfix for n == 0.
     [Bodo Moeller]

  *) Add a 'bctest' script that checks for some known 'bc' bugs
     so that 'make test' does not abort just because 'bc' is broken.
     [Bodo Moeller]

  *) Store verify_result within SSL_SESSION also for client side to
     avoid potential security hole. (Re-used sessions on the client side
     always resulted in verify_result==X509_V_OK, not using the original
     result of the server certificate verification.)
     [Lutz Jaenicke]

  *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
     SSL3_RT_APPLICATION_DATA, return 0.
     Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
     [Bodo Moeller]

  *) Fix SSL_peek:
     Both ssl2_peek and ssl3_peek, which were totally broken in earlier
     releases, have been re-implemented by renaming the previous
     implementations of ssl2_read and ssl3_read to ssl2_read_internal
     and ssl3_read_internal, respectively, and adding 'peek' parameters
     to them.  The new ssl[23]_{read,peek} functions are calls to
     ssl[23]_read_internal with the 'peek' flag set appropriately.
     A 'peek' parameter has also been added to ssl3_read_bytes, which
     does the actual work for ssl3_read_internal.
     [Bodo Moeller]

  *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
     the method-specific "init()" handler. Also clean up ex_data after
     calling the method-specific "finish()" handler. Previously, this was
     happening the other way round.
     [Geoff Thorpe]

  *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
     The previous value, 12, was not always sufficient for BN_mod_exp().
     [Bodo Moeller]

  *) Make sure that shared libraries get the internal name engine with
     the full version number and not just 0.  This should mark the
     shared libraries as not backward compatible.  Of course, this should
     be changed again when we can guarantee backward binary compatibility.
     [Richard Levitte]

  *) Fix typo in get_cert_by_subject() in by_dir.c
     [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]

  *) Rework the system to generate shared libraries:

     - Make note of the expected extension for the shared libraries and
       if there is a need for symbolic links from for example libcrypto.so.0
       to libcrypto.so.0.9.7.  There is extended info in Configure for
       that.

     - Make as few rebuilds of the shared libraries as possible.

     - Still avoid linking the OpenSSL programs with the shared libraries.

     - When installing, install the shared libraries separately from the
       static ones.
     [Richard Levitte]

5792 5793 5794 5795 5796 5797 5798 5799
  *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.

     Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
     and not in SSL_clear because the latter is also used by the
     accept/connect functions; previously, the settings made by
     SSL_set_read_ahead would be lost during the handshake.
     [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]     

R
Richard Levitte 已提交
5800 5801 5802 5803
  *) Correct util/mkdef.pl to be selective about disabled algorithms.
     Previously, it would create entries for disableed algorithms no
     matter what.
     [Richard Levitte]
5804

5805 5806 5807
  *) Added several new manual pages for SSL_* function.
     [Lutz Jaenicke]

5808
 Changes between 0.9.5a and 0.9.6  [24 Sep 2000]
D
Dr. Stephen Henson 已提交
5809

B
Bodo Möller 已提交
5810 5811 5812 5813 5814
  *) In ssl23_get_client_hello, generate an error message when faced
     with an initial SSL 3.0/TLS record that is too small to contain the
     first two bytes of the ClientHello message, i.e. client_version.
     (Note that this is a pathologic case that probably has never happened
     in real life.)  The previous approach was to use the version number
B
typo  
Bodo Möller 已提交
5815
     from the record header as a substitute; but our protocol choice
B
Bodo Möller 已提交
5816 5817 5818 5819
     should not depend on that one because it is not authenticated
     by the Finished messages.
     [Bodo Moeller]

U
Ulf Möller 已提交
5820 5821 5822
  *) More robust randomness gathering functions for Windows.
     [Jeffrey Altman <jaltman@columbia.edu>]

D
 
Dr. Stephen Henson 已提交
5823 5824 5825 5826 5827 5828 5829 5830
  *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
     not set then we don't setup the error code for issuer check errors
     to avoid possibly overwriting other errors which the callback does
     handle. If an application does set the flag then we assume it knows
     what it is doing and can handle the new informational codes
     appropriately.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
5831 5832 5833 5834 5835 5836 5837 5838 5839 5840 5841 5842
  *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
     a general "ANY" type, as such it should be able to decode anything
     including tagged types. However it didn't check the class so it would
     wrongly interpret tagged types in the same way as their universal
     counterpart and unknown types were just rejected. Changed so that the
     tagged and unknown types are handled in the same way as a SEQUENCE:
     that is the encoding is stored intact. There is also a new type
     "V_ASN1_OTHER" which is used when the class is not universal, in this
     case we have no idea what the actual type is so we just lump them all
     together.
     [Steve Henson]

5843 5844 5845 5846 5847 5848 5849 5850 5851 5852 5853 5854 5855 5856 5857 5858
  *) On VMS, stdout may very well lead to a file that is written to
     in a record-oriented fashion.  That means that every write() will
     write a separate record, which will be read separately by the
     programs trying to read from it.  This can be very confusing.

     The solution is to put a BIO filter in the way that will buffer
     text until a linefeed is reached, and then write everything a
     line at a time, so every record written will be an actual line,
     not chunks of lines and not (usually doesn't happen, but I've
     seen it once) several lines in one record.  BIO_f_linebuffer() is
     the answer.

     Currently, it's a VMS-only method, because that's where it has
     been tested well enough.
     [Richard Levitte]

5859
  *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5860
     it can return incorrect results.
5861 5862
     (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
     but it was in 0.9.6-beta[12].)
5863 5864
     [Bodo Moeller]

5865 5866 5867 5868 5869
  *) Disable the check for content being present when verifying detached
     signatures in pk7_smime.c. Some versions of Netscape (wrongly)
     include zero length content when signing messages.
     [Steve Henson]

5870 5871
  *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
     BIO_ctrl (for BIO pairs).
U
Ulf Möller 已提交
5872
     [Bodo Möller]
5873

5874 5875 5876
  *) Add DSO method for VMS.
     [Richard Levitte]

5877 5878 5879 5880
  *) Bug fix: Montgomery multiplication could produce results with the
     wrong sign.
     [Ulf Möller]

5881 5882 5883 5884 5885 5886 5887 5888
  *) Add RPM specification openssl.spec and modify it to build three
     packages.  The default package contains applications, application
     documentation and run-time libraries.  The devel package contains
     include files, static libraries and function documentation.  The
     doc package contains the contents of the doc directory.  The original
     openssl.spec was provided by Damien Miller <djm@mindrot.org>.
     [Richard Levitte]
     
5889 5890 5891
  *) Add a large number of documentation files for many SSL routines.
     [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]

5892 5893 5894
  *) Add a configuration entry for Sony News 4.
     [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]

U
Ulf Möller 已提交
5895 5896
  *) Don't set the two most significant bits to one when generating a
     random number < q in the DSA library.
5897
     [Ulf Möller]
U
Ulf Möller 已提交
5898

5899 5900 5901 5902 5903 5904 5905 5906 5907
  *) New SSL API mode 'SSL_MODE_AUTO_RETRY'.  This disables the default
     behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
     the underlying transport is blocking) if a handshake took place.
     (The default behaviour is needed by applications such as s_client
     and s_server that use select() to determine when to use SSL_read;
     but for applications that know in advance when to expect data, it
     just makes things more complicated.)
     [Bodo Moeller]

B
Ben Laurie 已提交
5908 5909 5910 5911
  *) Add RAND_egd_bytes(), which gives control over the number of bytes read
     from EGD.
     [Ben Laurie]

5912 5913 5914 5915
  *) Add a few more EBCDIC conditionals that make `req' and `x509'
     work better on such systems.
     [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]

5916 5917 5918 5919 5920
  *) Add two demo programs for PKCS12_parse() and PKCS12_create().
     Update PKCS12_parse() so it copies the friendlyName and the
     keyid to the certificates aux info.
     [Steve Henson]

5921 5922 5923 5924
  *) Fix bug in PKCS7_verify() which caused an infinite loop
     if there was more than one signature.
     [Sven Uszpelkat <su@celocom.de>]

5925 5926 5927 5928 5929 5930
  *) Major change in util/mkdef.pl to include extra information
     about each symbol, as well as presentig variables as well
     as functions.  This change means that there's n more need
     to rebuild the .num files when some algorithms are excluded.
     [Richard Levitte]

D
Dr. Stephen Henson 已提交
5931 5932 5933
  *) Allow the verify time to be set by an application,
     rather than always using the current time.
     [Steve Henson]
5934
  
D
Dr. Stephen Henson 已提交
5935 5936 5937 5938 5939 5940
  *) Phase 2 verify code reorganisation. The certificate
     verify code now looks up an issuer certificate by a
     number of criteria: subject name, authority key id
     and key usage. It also verifies self signed certificates
     by the same criteria. The main comparison function is
     X509_check_issued() which performs these checks.
5941
 
D
Dr. Stephen Henson 已提交
5942 5943
     Lot of changes were necessary in order to support this
     without completely rewriting the lookup code.
5944
 
D
Dr. Stephen Henson 已提交
5945
     Authority and subject key identifier are now cached.
5946
 
D
Dr. Stephen Henson 已提交
5947 5948 5949 5950
     The LHASH 'certs' is X509_STORE has now been replaced
     by a STACK_OF(X509_OBJECT). This is mainly because an
     LHASH can't store or retrieve multiple objects with
     the same hash value.
5951

D
Dr. Stephen Henson 已提交
5952 5953 5954 5955
     As a result various functions (which were all internal
     use only) have changed to handle the new X509_STORE
     structure. This will break anything that messed round
     with X509_STORE internally.
5956
 
D
Dr. Stephen Henson 已提交
5957 5958
     The functions X509_STORE_add_cert() now checks for an
     exact match, rather than just subject name.
5959
 
D
Dr. Stephen Henson 已提交
5960 5961 5962 5963 5964 5965 5966
     The X509_STORE API doesn't directly support the retrieval
     of multiple certificates matching a given criteria, however
     this can be worked round by performing a lookup first
     (which will fill the cache with candidate certificates)
     and then examining the cache for matches. This is probably
     the best we can do without throwing out X509_LOOKUP
     entirely (maybe later...).
5967
 
D
Dr. Stephen Henson 已提交
5968
     The X509_VERIFY_CTX structure has been enhanced considerably.
5969
 
D
Dr. Stephen Henson 已提交
5970 5971 5972 5973 5974 5975 5976 5977
     All certificate lookup operations now go via a get_issuer()
     callback. Although this currently uses an X509_STORE it
     can be replaced by custom lookups. This is a simple way
     to bypass the X509_STORE hackery necessary to make this
     work and makes it possible to use more efficient techniques
     in future. A very simple version which uses a simple
     STACK for its trusted certificate store is also provided
     using X509_STORE_CTX_trusted_stack().
5978
 
D
Dr. Stephen Henson 已提交
5979 5980
     The verify_cb() and verify() callbacks now have equivalents
     in the X509_STORE_CTX structure.
5981
 
D
Dr. Stephen Henson 已提交
5982 5983 5984
     X509_STORE_CTX also has a 'flags' field which can be used
     to customise the verify behaviour.
     [Steve Henson]
5985
 
5986 5987 5988 5989 5990 5991 5992 5993 5994 5995 5996
  *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which 
     excludes S/MIME capabilities.
     [Steve Henson]

  *) When a certificate request is read in keep a copy of the
     original encoding of the signed data and use it when outputing
     again. Signatures then use the original encoding rather than
     a decoded, encoded version which may cause problems if the
     request is improperly encoded.
     [Steve Henson]

B
Bodo Möller 已提交
5997 5998 5999
  *) For consistency with other BIO_puts implementations, call
     buffer_write(b, ...) directly in buffer_puts instead of calling
     BIO_write(b, ...).
B
Bodo Möller 已提交
6000 6001

     In BIO_puts, increment b->num_write as in BIO_write.
B
Bodo Möller 已提交
6002 6003
     [Peter.Sylvester@EdelWeb.fr]

6004 6005 6006 6007 6008 6009 6010 6011 6012 6013
  *) Fix BN_mul_word for the case where the word is 0. (We have to use
     BN_zero, we may not return a BIGNUM with an array consisting of
     words set to zero.)
     [Bodo Moeller]

  *) Avoid calling abort() from within the library when problems are
     detected, except if preprocessor symbols have been defined
     (such as REF_CHECK, BN_DEBUG etc.).
     [Bodo Moeller]

6014 6015 6016 6017 6018
  *) New openssl application 'rsautl'. This utility can be
     used for low level RSA operations. DER public key
     BIO/fp routines also added.
     [Steve Henson]

B
Bodo Möller 已提交
6019 6020 6021
  *) New Configure entry and patches for compiling on QNX 4.
     [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]

B
Ben Laurie 已提交
6022 6023 6024 6025 6026
  *) A demo state-machine implementation was sponsored by
     Nuron (http://www.nuron.com/) and is now available in
     demos/state_machine.
     [Ben Laurie]

6027 6028 6029 6030
  *) New options added to the 'dgst' utility for signature
     generation and verification.
     [Steve Henson]

6031 6032 6033 6034 6035 6036
  *) Unrecognized PKCS#7 content types are now handled via a
     catch all ASN1_TYPE structure. This allows unsupported
     types to be stored as a "blob" and an application can
     encode and decode it manually.
     [Steve Henson]

6037
  *) Fix various signed/unsigned issues to make a_strex.c
D
 
Dr. Stephen Henson 已提交
6038 6039 6040 6041 6042 6043 6044 6045
     compile under VC++.
     [Oscar Jacobsson <oscar.jacobsson@celocom.com>]

  *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
     length if passed a buffer. ASN1_INTEGER_to_BN failed
     if passed a NULL BN and its argument was negative.
     [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]

D
Dr. Stephen Henson 已提交
6046 6047 6048 6049 6050 6051 6052
  *) Modification to PKCS#7 encoding routines to output definite
     length encoding. Since currently the whole structures are in
     memory there's not real point in using indefinite length 
     constructed encoding. However if OpenSSL is compiled with
     the flag PKCS7_INDEFINITE_ENCODING the old form is used.
     [Steve Henson]

6053 6054 6055
  *) Added BIO_vprintf() and BIO_vsnprintf().
     [Richard Levitte]

6056 6057 6058 6059 6060 6061 6062 6063 6064 6065 6066 6067 6068 6069 6070 6071 6072 6073 6074 6075 6076 6077 6078 6079
  *) Added more prefixes to parse for in the the strings written
     through a logging bio, to cover all the levels that are available
     through syslog.  The prefixes are now:

	PANIC, EMERG, EMR	=>	LOG_EMERG
	ALERT, ALR		=>	LOG_ALERT
	CRIT, CRI		=>	LOG_CRIT
	ERROR, ERR		=>	LOG_ERR
	WARNING, WARN, WAR	=>	LOG_WARNING
	NOTICE, NOTE, NOT	=>	LOG_NOTICE
	INFO, INF		=>	LOG_INFO
	DEBUG, DBG		=>	LOG_DEBUG

     and as before, if none of those prefixes are present at the
     beginning of the string, LOG_ERR is chosen.

     On Win32, the LOG_* levels are mapped according to this:

	LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR	=> EVENTLOG_ERROR_TYPE
	LOG_WARNING				=> EVENTLOG_WARNING_TYPE
	LOG_NOTICE, LOG_INFO, LOG_DEBUG		=> EVENTLOG_INFORMATION_TYPE

     [Richard Levitte]

6080 6081 6082 6083 6084 6085
  *) Made it possible to reconfigure with just the configuration
     argument "reconf" or "reconfigure".  The command line arguments
     are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
     and are retrieved from there when reconfiguring.
     [Richard Levitte]

6086
  *) MD4 implemented.
6087
     [Assar Westerlund <assar@sics.se>, Richard Levitte]
6088

6089 6090 6091
  *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
     [Richard Levitte]

6092 6093 6094 6095 6096 6097 6098 6099 6100 6101 6102 6103 6104
  *) The obj_dat.pl script was messing up the sorting of object
     names. The reason was that it compared the quoted version
     of strings as a result "OCSP" > "OCSP Signing" because
     " > SPACE. Changed script to store unquoted versions of
     names and add quotes on output. It was also omitting some
     names from the lookup table if they were given a default
     value (that is if SN is missing it is given the same
     value as LN and vice versa), these are now added on the
     grounds that if an object has a name we should be able to
     look it up. Finally added warning output when duplicate
     short or long names are found.
     [Steve Henson]

6105
  *) Changes needed for Tandem NSK.
U
Ulf Möller 已提交
6106
     [Scott Uroff <scott@xypro.com>]
6107

B
Bodo Möller 已提交
6108 6109 6110 6111 6112
  *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
     RSA_padding_check_SSLv23(), special padding was never detected
     and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
     version rollback attacks was not effective.

6113 6114 6115 6116 6117 6118
     In s23_clnt.c, don't use special rollback-attack detection padding
     (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
     client; similarly, in s23_srvr.c, don't do the rollback check if
     SSL 2.0 is the only protocol enabled in the server.
     [Bodo Moeller]

6119 6120 6121 6122 6123
  *) Make it possible to get hexdumps of unprintable data with 'openssl
     asn1parse'.  By implication, the functions ASN1_parse_dump() and
     BIO_dump_indent() are added.
     [Richard Levitte]

D
 
Dr. Stephen Henson 已提交
6124 6125 6126 6127 6128 6129 6130
  *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
     these print out strings and name structures based on various
     flags including RFC2253 support and proper handling of
     multibyte characters. Added options to the 'x509' utility 
     to allow the various flags to be set.
     [Steve Henson]

6131 6132 6133 6134 6135 6136 6137 6138 6139 6140 6141 6142 6143 6144 6145 6146 6147
  *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
     Also change the functions X509_cmp_current_time() and
     X509_gmtime_adj() work with an ASN1_TIME structure,
     this will enable certificates using GeneralizedTime in validity
     dates to be checked.
     [Steve Henson]

  *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
     negative public key encodings) on by default,
     NO_NEG_PUBKEY_BUG can be set to disable it.
     [Steve Henson]

  *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
     content octets. An i2c_ASN1_OBJECT is unnecessary because
     the encoding can be trivially obtained from the structure.
     [Steve Henson]

B
Bodo Möller 已提交
6148 6149 6150 6151
  *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
     not read locks (CRYPTO_r_[un]lock).
     [Bodo Moeller]

6152 6153 6154 6155 6156
  *) A first attempt at creating official support for shared
     libraries through configuration.  I've kept it so the
     default is static libraries only, and the OpenSSL programs
     are always statically linked for now, but there are
     preparations for dynamic linking in place.
6157
     This has been tested on Linux and Tru64.
6158 6159
     [Richard Levitte]

6160 6161 6162 6163 6164
  *) Randomness polling function for Win9x, as described in:
     Peter Gutmann, Software Generation of Practically Strong
     Random Numbers.
     [Ulf Möller]

D
 
Dr. Stephen Henson 已提交
6165 6166 6167 6168
  *) Fix so PRNG is seeded in req if using an already existing
     DSA key.
     [Steve Henson]

6169 6170 6171 6172 6173 6174 6175 6176 6177 6178
  *) New options to smime application. -inform and -outform
     allow alternative formats for the S/MIME message including
     PEM and DER. The -content option allows the content to be
     specified separately. This should allow things like Netscape
     form signing output easier to verify.
     [Steve Henson]

  *) Fix the ASN1 encoding of tags using the 'long form'.
     [Steve Henson]

D
 
Dr. Stephen Henson 已提交
6179 6180 6181 6182 6183 6184 6185 6186 6187 6188 6189 6190
  *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
     STRING types. These convert content octets to and from the
     underlying type. The actual tag and length octets are
     already assumed to have been read in and checked. These
     are needed because all other string types have virtually
     identical handling apart from the tag. By having versions
     of the ASN1 functions that just operate on content octets
     IMPLICIT tagging can be handled properly. It also allows
     the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
     and ASN1_INTEGER are identical apart from the tag.
     [Steve Henson]

R
Richard Levitte 已提交
6191 6192 6193 6194 6195 6196 6197 6198 6199 6200 6201 6202 6203 6204 6205 6206 6207
  *) Change the handling of OID objects as follows:

     - New object identifiers are inserted in objects.txt, following
       the syntax given in objects.README.
     - objects.pl is used to process obj_mac.num and create a new
       obj_mac.h.
     - obj_dat.pl is used to create a new obj_dat.h, using the data in
       obj_mac.h.

     This is currently kind of a hack, and the perl code in objects.pl
     isn't very elegant, but it works as I intended.  The simplest way
     to check that it worked correctly is to look in obj_dat.h and
     check the array nid_objs and make sure the objects haven't moved
     around (this is important!).  Additions are OK, as well as
     consistent name changes. 
     [Richard Levitte]

6208 6209 6210
  *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
     [Bodo Moeller]

R
Richard Levitte 已提交
6211
  *) Addition of the command line parameter '-rand file' to 'openssl req'.
R
Richard Levitte 已提交
6212 6213 6214
     The given file adds to whatever has already been seeded into the
     random pool through the RANDFILE configuration file option or
     environment variable, or the default random state file.
R
Richard Levitte 已提交
6215 6216
     [Richard Levitte]

6217 6218 6219 6220 6221 6222
  *) mkstack.pl now sorts each macro group into lexical order.
     Previously the output order depended on the order the files
     appeared in the directory, resulting in needless rewriting
     of safestack.h .
     [Steve Henson]

D
 
Dr. Stephen Henson 已提交
6223 6224 6225 6226 6227 6228
  *) Patches to make OpenSSL compile under Win32 again. Mostly
     work arounds for the VC++ problem that it treats func() as
     func(void). Also stripped out the parts of mkdef.pl that
     added extra typesafe functions: these no longer exist.
     [Steve Henson]

6229 6230 6231 6232 6233 6234 6235 6236 6237
  *) Reorganisation of the stack code. The macros are now all 
     collected in safestack.h . Each macro is defined in terms of
     a "stack macro" of the form SKM_<name>(type, a, b). The 
     DEBUG_SAFESTACK is now handled in terms of function casts,
     this has the advantage of retaining type safety without the
     use of additional functions. If DEBUG_SAFESTACK is not defined
     then the non typesafe macros are used instead. Also modified the
     mkstack.pl script to handle the new form. Needs testing to see
     if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
D
 
Dr. Stephen Henson 已提交
6238 6239
     the default if no major problems. Similar behaviour for ASN1_SET_OF
     and PKCS12_STACK_OF.
6240 6241
     [Steve Henson]

6242 6243 6244 6245 6246 6247 6248 6249 6250 6251 6252 6253
  *) When some versions of IIS use the 'NET' form of private key the
     key derivation algorithm is different. Normally MD5(password) is
     used as a 128 bit RC4 key. In the modified case
     MD5(MD5(password) + "SGCKEYSALT")  is used insted. Added some
     new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
     as the old Netscape_RSA functions except they have an additional
     'sgckey' parameter which uses the modified algorithm. Also added
     an -sgckey command line option to the rsa utility. Thanks to 
     Adrian Peck <bertie@ncipher.com> for posting details of the modified
     algorithm to openssl-dev.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
6254 6255 6256 6257 6258
  *) The evp_local.h macros were using 'c.##kname' which resulted in
     invalid expansion on some systems (SCO 5.0.5 for example).
     Corrected to 'c.kname'.
     [Phillip Porch <root@theporch.com>]

6259 6260 6261 6262 6263 6264
  *) New X509_get1_email() and X509_REQ_get1_email() functions that return
     a STACK of email addresses from a certificate or request, these look
     in the subject name and the subject alternative name extensions and 
     omit any duplicate addresses.
     [Steve Henson]

6265 6266 6267 6268 6269 6270 6271 6272 6273 6274 6275
  *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
     This makes DSA verification about 2 % faster.
     [Bodo Moeller]

  *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
     (meaning that now 2^5 values will be precomputed, which is only 4 KB
     plus overhead for 1024 bit moduli).
     This makes exponentiations about 0.5 % faster for 1024 bit
     exponents (as measured by "openssl speed rsa2048").
     [Bodo Moeller]

B
Bodo Möller 已提交
6276 6277 6278 6279 6280 6281 6282 6283
  *) Rename memory handling macros to avoid conflicts with other
     software:
          Malloc         =>  OPENSSL_malloc
          Malloc_locked  =>  OPENSSL_malloc_locked
          Realloc        =>  OPENSSL_realloc
          Free           =>  OPENSSL_free
     [Richard Levitte]

6284 6285
  *) New function BN_mod_exp_mont_word for small bases (roughly 15%
     faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
B
Bodo Möller 已提交
6286 6287
     [Bodo Moeller]

U
Ulf Möller 已提交
6288 6289 6290
  *) CygWin32 support.
     [John Jarvie <jjarvie@newsguy.com>]

6291 6292 6293 6294 6295 6296 6297 6298
  *) The type-safe stack code has been rejigged. It is now only compiled
     in when OpenSSL is configured with the DEBUG_SAFESTACK option and
     by default all type-specific stack functions are "#define"d back to
     standard stack functions. This results in more streamlined output
     but retains the type-safety checking possibilities of the original
     approach.
     [Geoff Thorpe]

6299 6300 6301 6302 6303 6304 6305 6306 6307
  *) The STACK code has been cleaned up, and certain type declarations
     that didn't make a lot of sense have been brought in line. This has
     also involved a cleanup of sorts in safestack.h to more correctly
     map type-safe stack functions onto their plain stack counterparts.
     This work has also resulted in a variety of "const"ifications of
     lots of the code, especially "_cmp" operations which should normally
     be prototyped with "const" parameters anyway.
     [Geoff Thorpe]

B
Bodo Möller 已提交
6308 6309 6310 6311 6312 6313 6314 6315 6316 6317 6318 6319 6320
  *) When generating bytes for the first time in md_rand.c, 'stir the pool'
     by seeding with STATE_SIZE dummy bytes (with zero entropy count).
     (The PRNG state consists of two parts, the large pool 'state' and 'md',
     where all of 'md' is used each time the PRNG is used, but 'state'
     is used only indexed by a cyclic counter. As entropy may not be
     well distributed from the beginning, 'md' is important as a
     chaining variable. However, the output function chains only half
     of 'md', i.e. 80 bits.  ssleay_rand_add, on the other hand, chains
     all of 'md', and seeding with STATE_SIZE dummy bytes will result
     in all of 'state' being rewritten, with the new values depending
     on virtually all of 'md'.  This overcomes the 80 bit limitation.)
     [Bodo Moeller]

D
 
Dr. Stephen Henson 已提交
6321 6322 6323 6324 6325 6326 6327 6328 6329 6330 6331 6332 6333 6334 6335 6336
  *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
     the handshake is continued after ssl_verify_cert_chain();
     otherwise, if SSL_VERIFY_NONE is set, remaining error codes
     can lead to 'unexplainable' connection aborts later.
     [Bodo Moeller; problem tracked down by Lutz Jaenicke]

  *) Major EVP API cipher revision.
     Add hooks for extra EVP features. This allows various cipher
     parameters to be set in the EVP interface. Support added for variable
     key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
     setting of RC2 and RC5 parameters.

     Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
     ciphers.

     Remove lots of duplicated code from the EVP library. For example *every*
6337 6338 6339 6340
     cipher init() function handles the 'iv' in the same way according to the
     cipher mode. They also all do nothing if the 'key' parameter is NULL and
     for CFB and OFB modes they zero ctx->num.

D
 
Dr. Stephen Henson 已提交
6341 6342
     New functionality allows removal of S/MIME code RC2 hack.

D
Dr. Stephen Henson 已提交
6343 6344 6345
     Most of the routines have the same form and so can be declared in terms
     of macros.

6346 6347 6348 6349
     By shifting this to the top level EVP_CipherInit() it can be removed from
     all individual ciphers. If the cipher wants to handle IVs or keys
     differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
     flags.
D
 
Dr. Stephen Henson 已提交
6350 6351 6352 6353

     Change lots of functions like EVP_EncryptUpdate() to now return a
     value: although software versions of the algorithms cannot fail
     any installed hardware versions can.
D
 
Dr. Stephen Henson 已提交
6354 6355
     [Steve Henson]

6356 6357 6358 6359 6360 6361 6362 6363 6364 6365 6366 6367
  *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
     this option is set, tolerate broken clients that send the negotiated
     protocol version number instead of the requested protocol version
     number.
     [Bodo Moeller]

  *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
     i.e. non-zero for export ciphersuites, zero otherwise.
     Previous versions had this flag inverted, inconsistent with
     rsa_tmp_cb (..._TMP_RSA_CB).
     [Bodo Moeller; problem reported by Amit Chopra]

6368 6369 6370 6371
  *) Add missing DSA library text string. Work around for some IIS
     key files with invalid SEQUENCE encoding.
     [Steve Henson]

6372 6373 6374 6375
  *) Add a document (doc/standards.txt) that list all kinds of standards
     and so on that are implemented in OpenSSL.
     [Richard Levitte]

6376 6377 6378 6379 6380 6381
  *) Enhance c_rehash script. Old version would mishandle certificates
     with the same subject name hash and wouldn't handle CRLs at all.
     Added -fingerprint option to crl utility, to support new c_rehash
     features.
     [Steve Henson]

6382
  *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6383
     [Ulf Möller]
6384

6385 6386 6387 6388 6389
  *) Fix for SSL server purpose checking. Server checking was
     rejecting certificates which had extended key usage present
     but no ssl client purpose.
     [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]

6390 6391 6392 6393 6394 6395 6396 6397 6398 6399 6400 6401 6402
  *) Make PKCS#12 code work with no password. The PKCS#12 spec
     is a little unclear about how a blank password is handled.
     Since the password in encoded as a BMPString with terminating
     double NULL a zero length password would end up as just the
     double NULL. However no password at all is different and is
     handled differently in the PKCS#12 key generation code. NS
     treats a blank password as zero length. MSIE treats it as no
     password on export: but it will try both on import. We now do
     the same: PKCS12_parse() tries zero length and no password if
     the password is set to "" or NULL (NULL is now a valid password:
     it wasn't before) as does the pkcs12 application.
     [Steve Henson]

B
Bodo Möller 已提交
6403 6404 6405 6406 6407
  *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
     perror when PEM_read_bio_X509_REQ fails, the error message must
     be obtained from the error queue.
     [Bodo Moeller]

6408 6409 6410 6411 6412 6413
  *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
     it in ERR_remove_state if appropriate, and change ERR_get_state
     accordingly to avoid race conditions (this is necessary because
     thread_hash is no longer constant once set).
     [Bodo Moeller]

U
 
Ulf Möller 已提交
6414 6415 6416
  *) Bugfix for linux-elf makefile.one.
     [Ulf Möller]

6417 6418 6419 6420 6421 6422 6423
  *) RSA_get_default_method() will now cause a default
     RSA_METHOD to be chosen if one doesn't exist already.
     Previously this was only set during a call to RSA_new()
     or RSA_new_method(NULL) meaning it was possible for
     RSA_get_default_method() to return NULL.
     [Geoff Thorpe]

6424 6425 6426 6427 6428 6429 6430
  *) Added native name translation to the existing DSO code
     that will convert (if the flag to do so is set) filenames
     that are sufficiently small and have no path information
     into a canonical native form. Eg. "blah" converted to
     "libblah.so" or "blah.dll" etc.
     [Geoff Thorpe]

B
Bodo Möller 已提交
6431 6432 6433 6434 6435 6436
  *) New function ERR_error_string_n(e, buf, len) which is like
     ERR_error_string(e, buf), but writes at most 'len' bytes
     including the 0 terminator.  For ERR_error_string_n, 'buf'
     may not be NULL.
     [Damien Miller <djm@mindrot.org>, Bodo Moeller]

6437 6438 6439 6440 6441 6442 6443 6444 6445 6446 6447 6448 6449
  *) CONF library reworked to become more general.  A new CONF
     configuration file reader "class" is implemented as well as a
     new functions (NCONF_*, for "New CONF") to handle it.  The now
     old CONF_* functions are still there, but are reimplemented to
     work in terms of the new functions.  Also, a set of functions
     to handle the internal storage of the configuration data is
     provided to make it easier to write new configuration file
     reader "classes" (I can definitely see something reading a
     configuration file in XML format, for example), called _CONF_*,
     or "the configuration storage API"...

     The new configuration file reading functions are:

6450 6451
        NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
        NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6452

6453
        NCONF_default, NCONF_WIN32
6454

6455
        NCONF_dump_fp, NCONF_dump_bio
6456 6457 6458 6459 6460 6461 6462 6463 6464 6465 6466 6467 6468

     NCONF_default and NCONF_WIN32 are method (or "class") choosers,
     NCONF_new creates a new CONF object.  This works in the same way
     as other interfaces in OpenSSL, like the BIO interface.
     NCONF_dump_* dump the internal storage of the configuration file,
     which is useful for debugging.  All other functions take the same
     arguments as the old CONF_* functions wth the exception of the
     first that must be a `CONF *' instead of a `LHASH *'.

     To make it easer to use the new classes with the old CONF_* functions,
     the function CONF_set_default_method is provided.
     [Richard Levitte]

6469 6470 6471 6472 6473 6474
  *) Add '-tls1' option to 'openssl ciphers', which was already
     mentioned in the documentation but had not been implemented.
     (This option is not yet really useful because even the additional
     experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
     [Bodo Moeller]

6475 6476 6477 6478
  *) Initial DSO code added into libcrypto for letting OpenSSL (and
     OpenSSL-based applications) load shared libraries and bind to
     them in a portable way.
     [Geoff Thorpe, with contributions from Richard Levitte]
6479

6480 6481 6482
 Changes between 0.9.5 and 0.9.5a  [1 Apr 2000]

  *) Make sure _lrotl and _lrotr are only used with MSVC.
6483

6484 6485 6486
  *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
     (the default implementation of RAND_status).

6487 6488 6489 6490 6491
  *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
     to '-clrext' (= clear extensions), as intended and documented.
     [Bodo Moeller; inconsistency pointed out by Michael Attili
     <attili@amaxo.com>]

D
Dr. Stephen Henson 已提交
6492 6493 6494 6495
  *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
     was larger than the MD block size.      
     [Steve Henson, pointed out by Yost William <YostW@tce.com>]

6496 6497 6498 6499 6500 6501 6502
  *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
     fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
     using the passed key: if the passed key was a private key the result
     of X509_print(), for example, would be to print out all the private key
     components.
     [Steve Henson]

6503 6504 6505 6506
  *) des_quad_cksum() byte order bug fix.
     [Ulf Möller, using the problem description in krb4-0.9.7, where
      the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]

6507 6508 6509 6510
  *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
     discouraged.
     [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]

B
Bodo Möller 已提交
6511 6512
  *) For easily testing in shell scripts whether some command
     'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
B
Bodo Möller 已提交
6513
     returns with exit code 0 iff no command of the given name is available.
B
Bodo Möller 已提交
6514
     'no-XXX' is printed in this case, 'XXX' otherwise.  In both cases,
6515 6516 6517 6518 6519
     the output goes to stdout and nothing is printed to stderr.
     Additional arguments are always ignored.

     Since for each cipher there is a command of the same name,
     the 'no-cipher' compilation switches can be tested this way.
B
Bodo Möller 已提交
6520 6521 6522

     ('openssl no-XXX' is not able to detect pseudo-commands such
     as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6523 6524
     [Bodo Moeller]

6525 6526 6527
  *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
     [Bodo Moeller]

6528 6529 6530 6531 6532 6533 6534 6535 6536
  *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
     is set; it will be thrown away anyway because each handshake creates
     its own key.
     ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
     to parameters -- in previous versions (since OpenSSL 0.9.3) the
     'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
     you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
     [Bodo Moeller]

B
Bodo Möller 已提交
6537 6538 6539 6540 6541 6542
  *) New s_client option -ign_eof: EOF at stdin is ignored, and
     'Q' and 'R' lose their special meanings (quit/renegotiate).
     This is part of what -quiet does; unlike -quiet, -ign_eof
     does not suppress any output.
     [Richard Levitte]

B
Bodo Möller 已提交
6543
  *) Add compatibility options to the purpose and trust code. The
6544 6545 6546 6547 6548 6549 6550 6551 6552 6553 6554
     purpose X509_PURPOSE_ANY is "any purpose" which automatically
     accepts a certificate or CA, this was the previous behaviour,
     with all the associated security issues.

     X509_TRUST_COMPAT is the old trust behaviour: only and
     automatically trust self signed roots in certificate store. A
     new trust setting X509_TRUST_DEFAULT is used to specify that
     a purpose has no associated trust setting and it should instead
     use the value in the default purpose.
     [Steve Henson]

6555 6556 6557 6558
  *) Fix the PKCS#8 DSA private key code so it decodes keys again
     and fix a memory leak.
     [Steve Henson]

6559 6560 6561 6562 6563 6564
  *) In util/mkerr.pl (which implements 'make errors'), preserve
     reason strings from the previous version of the .c file, as
     the default to have only downcase letters (and digits) in
     automatically generated reasons codes is not always appropriate.
     [Bodo Moeller]

6565 6566 6567 6568 6569 6570
  *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
     using strerror.  Previously, ERR_reason_error_string() returned
     library names as reason strings for SYSerr; but SYSerr is a special
     case where small numbers are errno values, not library numbers.
     [Bodo Moeller]

6571 6572 6573 6574 6575 6576 6577 6578 6579
  *) Add '-dsaparam' option to 'openssl dhparam' application.  This
     converts DSA parameters into DH parameters. (When creating parameters,
     DSA_generate_parameters is used.)
     [Bodo Moeller]

  *) Include 'length' (recommended exponent length) in C code generated
     by 'openssl dhparam -C'.
     [Bodo Moeller]

6580 6581 6582 6583 6584
  *) The second argument to set_label in perlasm was already being used
     so couldn't be used as a "file scope" flag. Moved to third argument
     which was free.
     [Steve Henson]

6585 6586 6587 6588
  *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
     instead of RAND_bytes for encryption IVs and salts.
     [Bodo Moeller]

6589 6590 6591 6592 6593
  *) Include RAND_status() into RAND_METHOD instead of implementing
     it only for md_rand.c  Otherwise replacing the PRNG by calling
     RAND_set_rand_method would be impossible.
     [Bodo Moeller]

6594 6595 6596 6597
  *) Don't let DSA_generate_key() enter an infinite loop if the random
     number generation fails.
     [Bodo Moeller]

B
Bodo Möller 已提交
6598 6599 6600
  *) New 'rand' application for creating pseudo-random output.
     [Bodo Moeller]

6601 6602 6603
  *) Added configuration support for Linux/IA64
     [Rolf Haberrecker <rolf@suse.de>]

U
Ulf Möller 已提交
6604 6605 6606
  *) Assembler module support for Mingw32.
     [Ulf Möller]

6607 6608 6609 6610 6611
  *) Shared library support for HPUX (in shlib/).
     [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]

  *) Shared library support for Solaris gcc.
     [Lutz Behnke <behnke@trustcenter.de>]
6612

R
Richard Levitte 已提交
6613
 Changes between 0.9.4 and 0.9.5  [28 Feb 2000]
U
Ulf Möller 已提交
6614

6615 6616 6617 6618
  *) PKCS7_encrypt() was adding text MIME headers twice because they
     were added manually and by SMIME_crlf_copy().
     [Steve Henson]

6619 6620 6621
  *) In bntest.c don't call BN_rand with zero bits argument.
     [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]

U
Ulf Möller 已提交
6622
  *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6623
     case was implemented. This caused BN_div_recp() to fail occasionally.
U
Ulf Möller 已提交
6624 6625
     [Ulf Möller]

6626 6627 6628 6629 6630 6631 6632
  *) Add an optional second argument to the set_label() in the perl
     assembly language builder. If this argument exists and is set
     to 1 it signals that the assembler should use a symbol whose 
     scope is the entire file, not just the current function. This
     is needed with MASM which uses the format label:: for this scope.
     [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]

6633 6634 6635 6636 6637 6638
  *) Change the ASN1 types so they are typedefs by default. Before
     almost all types were #define'd to ASN1_STRING which was causing
     STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
     for example.
     [Steve Henson]

6639 6640 6641 6642 6643 6644 6645 6646
  *) Change names of new functions to the new get1/get0 naming
     convention: After 'get1', the caller owns a reference count
     and has to call ..._free; 'get0' returns a pointer to some
     data structure without incrementing reference counters.
     (Some of the existing 'get' functions increment a reference
     counter, some don't.)
     Similarly, 'set1' and 'add1' functions increase reference
     counters or duplicate objects.
6647 6648
     [Steve Henson]

6649 6650 6651 6652
  *) Allow for the possibility of temp RSA key generation failure:
     the code used to assume it always worked and crashed on failure.
     [Steve Henson]

U
Ulf Möller 已提交
6653 6654 6655 6656
  *) Fix potential buffer overrun problem in BIO_printf().
     [Ulf Möller, using public domain code by Patrick Powell; problem
      pointed out by David Sacerdote <das33@cornell.edu>]

U
Ulf Möller 已提交
6657 6658 6659 6660 6661 6662
  *) Support EGD <http://www.lothar.com/tech/crypto/>.  New functions
     RAND_egd() and RAND_status().  In the command line application,
     the EGD socket can be specified like a seed file using RANDFILE
     or -rand.
     [Ulf Möller]

D
 
Dr. Stephen Henson 已提交
6663 6664 6665 6666 6667 6668 6669 6670 6671 6672
  *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
     Some CAs (e.g. Verisign) distribute certificates in this form.
     [Steve Henson]

  *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
     list to exclude them. This means that no special compilation option
     is needed to use anonymous DH: it just needs to be included in the
     cipher list.
     [Steve Henson]

6673 6674 6675 6676 6677
  *) Change the EVP_MD_CTX_type macro so its meaning consistent with
     EVP_MD_type. The old functionality is available in a new macro called
     EVP_MD_md(). Change code that uses it and update docs.
     [Steve Henson]

6678 6679 6680 6681 6682 6683
  *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
     where the 'void *' argument is replaced by a function pointer argument.
     Previously 'void *' was abused to point to functions, which works on
     many platforms, but is not correct.  As these functions are usually
     called by macros defined in OpenSSL header files, most source code
     should work without changes.
U
Ulf Möller 已提交
6684
     [Richard Levitte]
6685 6686 6687 6688 6689 6690 6691 6692 6693

  *) <openssl/opensslconf.h> (which is created by Configure) now contains
     sections with information on -D... compiler switches used for
     compiling the library so that applications can see them.  To enable
     one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
     must be defined.  E.g.,
        #define OPENSSL_ALGORITHM_DEFINES
        #include <openssl/opensslconf.h>
     defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
U
Ulf Möller 已提交
6694
     [Richard Levitte, Ulf and Bodo Möller]
6695

6696 6697 6698 6699
  *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
     record layer.
     [Bodo Moeller]

6700 6701 6702 6703 6704
  *) Change the 'other' type in certificate aux info to a STACK_OF
     X509_ALGOR. Although not an AlgorithmIdentifier as such it has
     the required ASN1 format: arbitrary types determined by an OID.
     [Steve Henson]

6705 6706 6707 6708 6709 6710
  *) Add some PEM_write_X509_REQ_NEW() functions and a command line
     argument to 'req'. This is not because the function is newer or
     better than others it just uses the work 'NEW' in the certificate
     request header lines. Some software needs this.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
6711 6712 6713 6714 6715 6716 6717 6718
  *) Reorganise password command line arguments: now passwords can be
     obtained from various sources. Delete the PEM_cb function and make
     it the default behaviour: i.e. if the callback is NULL and the
     usrdata argument is not NULL interpret it as a null terminated pass
     phrase. If usrdata and the callback are NULL then the pass phrase
     is prompted for as usual.
     [Steve Henson]

6719 6720 6721 6722 6723
  *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
     the support is automatically enabled. The resulting binaries will
     autodetect the card and use it if present.
     [Ben Laurie and Compaq Inc.]

6724 6725 6726 6727 6728 6729
  *) Work around for Netscape hang bug. This sends certificate request
     and server done in one record. Since this is perfectly legal in the
     SSL/TLS protocol it isn't a "bug" option and is on by default. See
     the bugs/SSLv3 entry for more info.
     [Steve Henson]

6730 6731 6732
  *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
     [Andy Polyakov]

6733 6734 6735 6736
  *) Add -rand argument to smime and pkcs12 applications and read/write
     of seed file.
     [Steve Henson]

B
Bodo Möller 已提交
6737
  *) New 'passwd' tool for crypt(3) and apr1 password hashes.
B
Bodo Möller 已提交
6738 6739
     [Bodo Moeller]

6740 6741 6742
  *) Add command line password options to the remaining applications.
     [Steve Henson]

6743 6744 6745 6746 6747 6748 6749
  *) Bug fix for BN_div_recp() for numerators with an even number of
     bits.
     [Ulf Möller]

  *) More tests in bntest.c, and changed test_bn output.
     [Ulf Möller]

6750 6751 6752
  *) ./config recognizes MacOS X now.
     [Andy Polyakov]

6753 6754 6755 6756
  *) Bug fix for BN_div() when the first words of num and divsor are
     equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
     [Ulf Möller]

6757 6758 6759 6760
  *) Add support for various broken PKCS#8 formats, and command line
     options to produce them.
     [Steve Henson]

6761 6762 6763 6764 6765 6766 6767 6768
  *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
     get temporary BIGNUMs from a BN_CTX.
     [Ulf Möller]

  *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
     for p == 0.
     [Ulf Möller]

6769 6770 6771 6772 6773 6774 6775 6776 6777
  *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
     include a #define from the old name to the new. The original intent
     was that statically linked binaries could for example just call
     SSLeay_add_all_ciphers() to just add ciphers to the table and not
     link with digests. This never worked becayse SSLeay_add_all_digests()
     and SSLeay_add_all_ciphers() were in the same source file so calling
     one would link with the other. They are now in separate source files.
     [Steve Henson]

D
 
Dr. Stephen Henson 已提交
6778 6779 6780
  *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
     [Steve Henson]

6781 6782 6783 6784 6785
  *) Use a less unusual form of the Miller-Rabin primality test (it used
     a binary algorithm for exponentiation integrated into the Miller-Rabin
     loop, our standard modexp algorithms are faster).
     [Bodo Moeller]

B
Bodo Möller 已提交
6786
  *) Support for the EBCDIC character set completed.
U
Ulf Möller 已提交
6787 6788
     [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]

U
Ulf Möller 已提交
6789 6790 6791 6792
  *) Source code cleanups: use const where appropriate, eliminate casts,
     use void * instead of char * in lhash.
     [Ulf Möller] 

6793 6794 6795 6796 6797 6798 6799 6800 6801 6802 6803 6804 6805 6806 6807 6808
  *) Bugfix: ssl3_send_server_key_exchange was not restartable
     (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
     this the server could overwrite ephemeral keys that the client
     has already seen).
     [Bodo Moeller]

  *) Turn DSA_is_prime into a macro that calls BN_is_prime,
     using 50 iterations of the Rabin-Miller test.

     DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
     iterations of the Rabin-Miller test as required by the appendix
     to FIPS PUB 186[-1]) instead of DSA_is_prime.
     As BN_is_prime_fasttest includes trial division, DSA parameter
     generation becomes much faster.

     This implies a change for the callback functions in DSA_is_prime
6809 6810 6811 6812 6813 6814 6815 6816 6817
     and DSA_generate_parameters: The callback function is called once
     for each positive witness in the Rabin-Miller test, not just
     occasionally in the inner loop; and the parameters to the
     callback function now provide an iteration count for the outer
     loop rather than for the current invocation of the inner loop.
     DSA_generate_parameters additionally can call the callback
     function with an 'iteration count' of -1, meaning that a
     candidate has passed the trial division test (when q is generated 
     from an application-provided seed, trial division is skipped).
6818 6819
     [Bodo Moeller]

6820
  *) New function BN_is_prime_fasttest that optionally does trial
6821 6822 6823
     division before starting the Rabin-Miller test and has
     an additional BN_CTX * argument (whereas BN_is_prime always
     has to allocate at least one BN_CTX).
6824 6825 6826
     'callback(1, -1, cb_arg)' is called when a number has passed the
     trial division stage.
     [Bodo Moeller]
6827

D
Dr. Stephen Henson 已提交
6828 6829 6830 6831
  *) Fix for bug in CRL encoding. The validity dates weren't being handled
     as ASN1_TIME.
     [Steve Henson]

D
 
Dr. Stephen Henson 已提交
6832 6833 6834
  *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
     [Steve Henson]

U
Ulf Möller 已提交
6835 6836
  *) New function BN_pseudo_rand().
     [Ulf Möller]
6837

U
Ulf Möller 已提交
6838 6839 6840 6841 6842 6843
  *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
     bignum version of BN_from_montgomery() with the working code from
     SSLeay 0.9.0 (the word based version is faster anyway), and clean up
     the comments.
     [Ulf Möller]

B
Bodo Möller 已提交
6844 6845 6846 6847 6848
  *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
     made it impossible to use the same SSL_SESSION data structure in
     SSL2 clients in multiple threads.
     [Bodo Moeller]

B
Bodo Möller 已提交
6849 6850 6851 6852
  *) The return value of RAND_load_file() no longer counts bytes obtained
     by stat().  RAND_load_file(..., -1) is new and uses the complete file
     to seed the PRNG (previously an explicit byte count was required).
     [Ulf Möller, Bodo Möller]
B
Bodo Möller 已提交
6853

D
 
Dr. Stephen Henson 已提交
6854 6855 6856 6857
  *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
     used (char *) instead of (void *) and had casts all over the place.
     [Steve Henson]

6858 6859 6860
  *) Make BN_generate_prime() return NULL on error if ret!=NULL.
     [Ulf Möller]

6861 6862 6863 6864
  *) Retain source code compatibility for BN_prime_checks macro:
     BN_is_prime(..., BN_prime_checks, ...) now uses
     BN_prime_checks_for_size to determine the appropriate number of
     Rabin-Miller iterations.
6865 6866 6867 6868 6869 6870 6871
     [Ulf Möller]

  *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
     DH_CHECK_P_NOT_SAFE_PRIME.
     (Check if this is true? OpenPGP calls them "strong".)
     [Ulf Möller]

D
 
Dr. Stephen Henson 已提交
6872 6873 6874 6875 6876
  *) Merge the functionality of "dh" and "gendh" programs into a new program
     "dhparam". The old programs are retained for now but will handle DH keys
     (instead of parameters) in future.
     [Steve Henson]

6877 6878 6879 6880 6881 6882 6883 6884 6885 6886 6887 6888 6889 6890 6891 6892 6893 6894 6895 6896 6897
  *) Make the ciphers, s_server and s_client programs check the return values
     when a new cipher list is set.
     [Steve Henson]

  *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
     ciphers. Before when the 56bit ciphers were enabled the sorting was
     wrong.

     The syntax for the cipher sorting has been extended to support sorting by
     cipher-strength (using the strength_bits hard coded in the tables).
     The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).

     Fix a bug in the cipher-command parser: when supplying a cipher command
     string with an "undefined" symbol (neither command nor alphanumeric
     [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
     an error is flagged.

     Due to the strength-sorting extension, the code of the
     ssl_create_cipher_list() function was completely rearranged. I hope that
     the readability was also increased :-)
     [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
D
 
Dr. Stephen Henson 已提交
6898

6899 6900 6901 6902 6903 6904 6905
  *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
     for the first serial number and places 2 in the serial number file. This
     avoids problems when the root CA is created with serial number zero and
     the first user certificate has the same issuer name and serial number
     as the root CA.
     [Steve Henson]

6906 6907 6908 6909
  *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
     the new code. Add documentation for this stuff.
     [Steve Henson]

6910 6911 6912 6913 6914 6915 6916 6917 6918 6919
  *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
     X509_*() to X509at_*() on the grounds that they don't handle X509
     structures and behave in an analagous way to the X509v3 functions:
     they shouldn't be called directly but wrapper functions should be used
     instead.

     So we also now have some wrapper functions that call the X509at functions
     when passed certificate requests. (TO DO: similar things can be done with
     PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
     things. Some of these need some d2i or i2d and print functionality
6920
     because they handle more complex structures.)
6921 6922
     [Steve Henson]

6923 6924 6925 6926 6927
  *) Add missing #ifndefs that caused missing symbols when building libssl
     as a shared library without RSA.  Use #ifndef NO_SSL2 instead of
     NO_RSA in ssl/s2*.c. 
     [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]

6928
  *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6929 6930
     has a return value which indicates the quality of the random data
     (1 = ok, 0 = not seeded).  Also an error is recorded on the thread's
6931
     error queue. New function RAND_pseudo_bytes() generates output that is
6932 6933 6934
     guaranteed to be unique but not unpredictable. RAND_add is like
     RAND_seed, but takes an extra argument for an entropy estimate
     (RAND_seed always assumes full entropy).
6935 6936
     [Ulf Möller]

6937 6938
  *) Do more iterations of Rabin-Miller probable prime test (specifically,
     3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6939
     instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6940
     in crypto/bn/bn_prime.c for the complete table).  This guarantees a
6941
     false-positive rate of at most 2^-80 for random input.
6942 6943
     [Bodo Moeller]

6944
  *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6945 6946
     [Bodo Moeller]

6947 6948
  *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
     in the 0.9.5 release), this returns the chain
6949 6950 6951 6952 6953 6954 6955 6956 6957
     from an X509_CTX structure with a dup of the stack and all
     the X509 reference counts upped: so the stack will exist
     after X509_CTX_cleanup() has been called. Modify pkcs12.c
     to use this.

     Also make SSL_SESSION_print() print out the verify return
     code.
     [Steve Henson]

6958 6959 6960 6961 6962 6963
  *) Add manpage for the pkcs12 command. Also change the default
     behaviour so MAC iteration counts are used unless the new
     -nomaciter option is used. This improves file security and
     only older versions of MSIE (4.0 for example) need it.
     [Steve Henson]

6964 6965 6966
  *) Honor the no-xxx Configure options when creating .DEF files.
     [Ulf Möller]

6967 6968 6969 6970 6971 6972 6973 6974 6975 6976 6977
  *) Add PKCS#10 attributes to field table: challengePassword, 
     unstructuredName and unstructuredAddress. These are taken from
     draft PKCS#9 v2.0 but are compatible with v1.2 provided no 
     international characters are used.

     More changes to X509_ATTRIBUTE code: allow the setting of types
     based on strings. Remove the 'loc' parameter when adding
     attributes because these will be a SET OF encoding which is sorted
     in ASN1 order.
     [Steve Henson]

6978 6979 6980 6981 6982 6983 6984 6985 6986
  *) Initial changes to the 'req' utility to allow request generation
     automation. This will allow an application to just generate a template
     file containing all the field values and have req construct the
     request.

     Initial support for X509_ATTRIBUTE handling. Stacks of these are
     used all over the place including certificate requests and PKCS#7
     structures. They are currently handled manually where necessary with
     some primitive wrappers for PKCS#7. The new functions behave in a
6987
     manner analogous to the X509 extension functions: they allow
6988 6989 6990 6991 6992
     attributes to be looked up by NID and added.

     Later something similar to the X509V3 code would be desirable to
     automatically handle the encoding, decoding and printing of the
     more complex types. The string types like challengePassword can
6993
     be handled by the string table functions.
6994 6995 6996 6997 6998 6999 7000 7001 7002

     Also modified the multi byte string table handling. Now there is
     a 'global mask' which masks out certain types. The table itself
     can use the flag STABLE_NO_MASK to ignore the mask setting: this
     is useful when for example there is only one permissible type
     (as in countryName) and using the mask might result in no valid
     types at all.
     [Steve Henson]

7003 7004 7005 7006 7007 7008 7009 7010 7011 7012
  *) Clean up 'Finished' handling, and add functions SSL_get_finished and
     SSL_get_peer_finished to allow applications to obtain the latest
     Finished messages sent to the peer or expected from the peer,
     respectively.  (SSL_get_peer_finished is usually the Finished message
     actually received from the peer, otherwise the protocol will be aborted.)

     As the Finished message are message digests of the complete handshake
     (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
     be used for external authentication procedures when the authentication
     provided by SSL/TLS is not desired or is not enough.
7013 7014
     [Bodo Moeller]

7015 7016
  *) Enhanced support for Alpha Linux is added. Now ./config checks if
     the host supports BWX extension and if Compaq C is present on the
7017
     $PATH. Just exploiting of the BWX extension results in 20-30%
7018 7019 7020 7021 7022
     performance kick for some algorithms, e.g. DES and RC4 to mention
     a couple. Compaq C in turn generates ~20% faster code for MD5 and
     SHA1.
     [Andy Polyakov]

7023 7024 7025 7026 7027 7028 7029 7030 7031 7032 7033
  *) Add support for MS "fast SGC". This is arguably a violation of the
     SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
     weak crypto and after checking the certificate is SGC a second one
     with strong crypto. MS SGC stops the first handshake after receiving
     the server certificate message and sends a second client hello. Since
     a server will typically do all the time consuming operations before
     expecting any further messages from the client (server key exchange
     is the most expensive) there is little difference between the two.

     To get OpenSSL to support MS SGC we have to permit a second client
     hello message after we have sent server done. In addition we have to
7034
     reset the MAC if we do get this second client hello.
7035 7036
     [Steve Henson]

7037 7038 7039 7040 7041 7042 7043 7044
  *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
     if a DER encoded private key is RSA or DSA traditional format. Changed
     d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
     format DER encoded private key. Newer code should use PKCS#8 format which
     has the key type encoded in the ASN1 structure. Added DER private key
     support to pkcs8 application.
     [Steve Henson]

7045 7046 7047 7048 7049 7050 7051 7052
  *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
     ciphersuites has been selected (as required by the SSL 3/TLS 1
     specifications).  Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
     is set, we interpret this as a request to violate the specification
     (the worst that can happen is a handshake failure, and 'correct'
     behaviour would result in a handshake failure anyway).
     [Bodo Moeller]

7053 7054 7055 7056 7057 7058 7059 7060
  *) In SSL_CTX_add_session, take into account that there might be multiple
     SSL_SESSION structures with the same session ID (e.g. when two threads
     concurrently obtain them from an external cache).
     The internal cache can handle only one SSL_SESSION with a given ID,
     so if there's a conflict, we now throw out the old one to achieve
     consistency.
     [Bodo Moeller]

7061 7062 7063 7064 7065 7066 7067
  *) Add OIDs for idea and blowfish in CBC mode. This will allow both
     to be used in PKCS#5 v2.0 and S/MIME.  Also add checking to
     some routines that use cipher OIDs: some ciphers do not have OIDs
     defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
     example.
     [Steve Henson]

7068 7069 7070 7071 7072 7073 7074 7075 7076
  *) Simplify the trust setting structure and code. Now we just have
     two sequences of OIDs for trusted and rejected settings. These will
     typically have values the same as the extended key usage extension
     and any application specific purposes.

     The trust checking code now has a default behaviour: it will just
     check for an object with the same NID as the passed id. Functions can
     be provided to override either the default behaviour or the behaviour
     for a given id. SSL client, server and email already have functions
7077
     in place for compatibility: they check the NID and also return "trusted"
7078 7079 7080
     if the certificate is self signed.
     [Steve Henson]

7081 7082 7083 7084
  *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
     traditional format into an EVP_PKEY structure.
     [Steve Henson]

7085 7086
  *) Add a password callback function PEM_cb() which either prompts for
     a password if usr_data is NULL or otherwise assumes it is a null
7087
     terminated password. Allow passwords to be passed on command line
7088 7089 7090
     environment or config files in a few more utilities.
     [Steve Henson]

7091 7092 7093 7094 7095 7096
  *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
     keys. Add some short names for PKCS#8 PBE algorithms and allow them
     to be specified on the command line for the pkcs8 and pkcs12 utilities.
     Update documentation.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
7097 7098
  *) Support for ASN1 "NULL" type. This could be handled before by using
     ASN1_TYPE but there wasn't any function that would try to read a NULL
7099
     and produce an error if it couldn't. For compatibility we also have
D
Dr. Stephen Henson 已提交
7100 7101 7102 7103
     ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
     don't allocate anything because they don't need to.
     [Steve Henson]

7104 7105 7106 7107
  *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
     for details.
     [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]

7108 7109 7110
  *) Rebuild of the memory allocation routines used by OpenSSL code and
     possibly others as well.  The purpose is to make an interface that
     provide hooks so anyone can build a separate set of allocation and
7111 7112 7113
     deallocation routines to be used by OpenSSL, for example memory
     pool implementations, or something else, which was previously hard
     since Malloc(), Realloc() and Free() were defined as macros having
R
Richard Levitte 已提交
7114 7115 7116 7117
     the values malloc, realloc and free, respectively (except for Win32
     compilations).  The same is provided for memory debugging code.
     OpenSSL already comes with functionality to find memory leaks, but
     this gives people a chance to debug other memory problems.
7118

7119 7120
     With these changes, a new set of functions and macros have appeared:

7121 7122 7123 7124 7125
       CRYPTO_set_mem_debug_functions()	        [F]
       CRYPTO_get_mem_debug_functions()         [F]
       CRYPTO_dbg_set_options()	                [F]
       CRYPTO_dbg_get_options()                 [F]
       CRYPTO_malloc_debug_init()               [M]
7126 7127 7128

     The memory debug functions are NULL by default, unless the library
     is compiled with CRYPTO_MDEBUG or friends is defined.  If someone
7129 7130 7131 7132 7133 7134 7135 7136
     wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
     gives the standard debugging functions that come with OpenSSL) or
     CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
     provided by the library user) must be used.  When the standard
     debugging functions are used, CRYPTO_dbg_set_options can be used to
     request additional information:
     CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
     the CRYPTO_MDEBUG_xxx macro when compiling the library.   
7137 7138 7139 7140 7141 7142 7143 7144 7145 7146 7147 7148 7149 7150

     Also, things like CRYPTO_set_mem_functions will always give the
     expected result (the new set of functions is used for allocation
     and deallocation) at all times, regardless of platform and compiler
     options.

     To finish it up, some functions that were never use in any other
     way than through macros have a new API and new semantic:

       CRYPTO_dbg_malloc()
       CRYPTO_dbg_realloc()
       CRYPTO_dbg_free()

     All macros of value have retained their old syntax.
7151
     [Richard Levitte and Bodo Moeller]
7152

D
Dr. Stephen Henson 已提交
7153 7154 7155 7156 7157 7158
  *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
     ordering of SMIMECapabilities wasn't in "strength order" and there
     was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
     algorithm.
     [Steve Henson]

7159 7160 7161 7162
  *) Some ASN1 types with illegal zero length encoding (INTEGER,
     ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
     [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]

7163 7164 7165 7166 7167 7168 7169 7170
  *) Merge in my S/MIME library for OpenSSL. This provides a simple
     S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
     functionality to handle multipart/signed properly) and a utility
     called 'smime' to call all this stuff. This is based on code I
     originally wrote for Celo who have kindly allowed it to be
     included in OpenSSL.
     [Steve Henson]

7171 7172 7173 7174 7175 7176 7177 7178
  *) Add variants des_set_key_checked and des_set_key_unchecked of
     des_set_key (aka des_key_sched).  Global variable des_check_key
     decides which of these is called by des_set_key; this way
     des_check_key behaves as it always did, but applications and
     the library itself, which was buggy for des_check_key == 1,
     have a cleaner way to pick the version they need.
     [Bodo Moeller]

D
Dr. Stephen Henson 已提交
7179 7180 7181 7182
  *) New function PKCS12_newpass() which changes the password of a
     PKCS12 structure.
     [Steve Henson]

7183 7184 7185 7186 7187 7188 7189 7190 7191 7192 7193 7194
  *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
     dynamic mix. In both cases the ids can be used as an index into the
     table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
     functions so they accept a list of the field values and the
     application doesn't need to directly manipulate the X509_TRUST
     structure.
     [Steve Henson]

  *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
     need initialising.
     [Steve Henson]

7195 7196 7197 7198 7199 7200 7201 7202 7203 7204 7205 7206 7207 7208 7209 7210 7211 7212 7213 7214
  *) Modify the way the V3 extension code looks up extensions. This now
     works in a similar way to the object code: we have some "standard"
     extensions in a static table which is searched with OBJ_bsearch()
     and the application can add dynamic ones if needed. The file
     crypto/x509v3/ext_dat.h now has the info: this file needs to be
     updated whenever a new extension is added to the core code and kept
     in ext_nid order. There is a simple program 'tabtest.c' which checks
     this. New extensions are not added too often so this file can readily
     be maintained manually.

     There are two big advantages in doing things this way. The extensions
     can be looked up immediately and no longer need to be "added" using
     X509V3_add_standard_extensions(): this function now does nothing.
     [Side note: I get *lots* of email saying the extension code doesn't
      work because people forget to call this function]
     Also no dynamic allocation is done unless new extensions are added:
     so if we don't add custom extensions there is no need to call
     X509V3_EXT_cleanup().
     [Steve Henson]

7215 7216 7217 7218 7219 7220
  *) Modify enc utility's salting as follows: make salting the default. Add a
     magic header, so unsalted files fail gracefully instead of just decrypting
     to garbage. This is because not salting is a big security hole, so people
     should be discouraged from doing it.
     [Ben Laurie]

7221 7222 7223 7224 7225 7226 7227 7228
  *) Fixes and enhancements to the 'x509' utility. It allowed a message
     digest to be passed on the command line but it only used this
     parameter when signing a certificate. Modified so all relevant
     operations are affected by the digest parameter including the
     -fingerprint and -x509toreq options. Also -x509toreq choked if a
     DSA key was used because it didn't fix the digest.
     [Steve Henson]

7229 7230 7231 7232 7233
  *) Initial certificate chain verify code. Currently tests the untrusted
     certificates for consistency with the verify purpose (which is set
     when the X509_STORE_CTX structure is set up) and checks the pathlength.

     There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7234 7235
     this is because it will reject chains with invalid extensions whereas
     every previous version of OpenSSL and SSLeay made no checks at all.
7236 7237 7238 7239 7240 7241 7242

     Trust code: checks the root CA for the relevant trust settings. Trust
     settings have an initial value consistent with the verify purpose: e.g.
     if the verify purpose is for SSL client use it expects the CA to be
     trusted for SSL client use. However the default value can be changed to
     permit custom trust settings: one example of this would be to only trust
     certificates from a specific "secure" set of CAs.
7243 7244 7245 7246

     Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
     which should be used for version portability: especially since the
     verify structure is likely to change more often now.
7247

7248 7249 7250 7251
     SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
     to set them. If not set then assume SSL clients will verify SSL servers
     and vice versa.

7252 7253 7254 7255
     Two new options to the verify program: -untrusted allows a set of
     untrusted certificates to be passed in and -purpose which sets the
     intended purpose of the certificate. If a purpose is set then the
     new chain verify code is used to check extension consistency.
7256 7257 7258
     [Steve Henson]

  *) Support for the authority information access extension.
7259 7260
     [Steve Henson]

7261 7262 7263 7264 7265
  *) Modify RSA and DSA PEM read routines to transparently handle
     PKCS#8 format private keys. New *_PUBKEY_* functions that handle
     public keys in a format compatible with certificate
     SubjectPublicKeyInfo structures. Unfortunately there were already
     functions called *_PublicKey_* which used various odd formats so
7266
     these are retained for compatibility: however the DSA variants were
7267 7268 7269 7270 7271 7272 7273 7274 7275 7276
     never in a public release so they have been deleted. Changed dsa/rsa
     utilities to handle the new format: note no releases ever handled public
     keys so we should be OK.

     The primary motivation for this change is to avoid the same fiasco
     that dogs private keys: there are several incompatible private key
     formats some of which are standard and some OpenSSL specific and
     require various evil hacks to allow partial transparent handling and
     even then it doesn't work with DER formats. Given the option anything
     other than PKCS#8 should be dumped: but the other formats have to
7277
     stay in the name of compatibility.
7278 7279 7280 7281 7282 7283

     With public keys and the benefit of hindsight one standard format 
     is used which works with EVP_PKEY, RSA or DSA structures: though
     it clearly returns an error if you try to read the wrong kind of key.

     Added a -pubkey option to the 'x509' utility to output the public key.
7284 7285 7286 7287 7288 7289
     Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
     (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
     EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
     that do the same as the EVP_PKEY_assign_*() except they up the
     reference count of the added key (they don't "swallow" the
     supplied key).
7290 7291 7292 7293 7294 7295 7296 7297 7298 7299 7300 7301 7302 7303 7304 7305 7306
     [Steve Henson]

  *) Fixes to crypto/x509/by_file.c the code to read in certificates and
     CRLs would fail if the file contained no certificates or no CRLs:
     added a new function to read in both types and return the number
     read: this means that if none are read it will be an error. The
     DER versions of the certificate and CRL reader would always fail
     because it isn't possible to mix certificates and CRLs in DER format
     without choking one or the other routine. Changed this to just read
     a certificate: this is the best we can do. Also modified the code
     in apps/verify.c to take notice of return codes: it was previously
     attempting to read in certificates from NULL pointers and ignoring
     any errors: this is one reason why the cert and CRL reader seemed
     to work. It doesn't check return codes from the default certificate
     routines: these may well fail if the certificates aren't installed.
     [Steve Henson]

7307 7308 7309
  *) Code to support otherName option in GeneralName.
     [Steve Henson]

7310 7311 7312 7313 7314 7315 7316 7317 7318 7319 7320 7321 7322
  *) First update to verify code. Change the verify utility
     so it warns if it is passed a self signed certificate:
     for consistency with the normal behaviour. X509_verify
     has been modified to it will now verify a self signed
     certificate if *exactly* the same certificate appears
     in the store: it was previously impossible to trust a
     single self signed certificate. This means that:
     openssl verify ss.pem
     now gives a warning about a self signed certificate but
     openssl verify -CAfile ss.pem ss.pem
     is OK.
     [Steve Henson]

7323 7324 7325 7326 7327 7328 7329 7330 7331 7332 7333
  *) For servers, store verify_result in SSL_SESSION data structure
     (and add it to external session representation).
     This is needed when client certificate verifications fails,
     but an application-provided verification callback (set by
     SSL_CTX_set_cert_verify_callback) allows accepting the session
     anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
     but returns 1): When the session is reused, we have to set
     ssl->verify_result to the appropriate error code to avoid
     security holes.
     [Bodo Moeller, problem pointed out by Lutz Jaenicke]

7334 7335 7336
  *) Fix a bug in the new PKCS#7 code: it didn't consider the
     case in PKCS7_dataInit() where the signed PKCS7 structure
     didn't contain any existing data because it was being created.
7337
     [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7338

7339 7340 7341 7342 7343
  *) Add a salt to the key derivation routines in enc.c. This
     forms the first 8 bytes of the encrypted file. Also add a
     -S option to allow a salt to be input on the command line.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
7344 7345 7346 7347 7348 7349
  *) New function X509_cmp(). Oddly enough there wasn't a function
     to compare two certificates. We do this by working out the SHA1
     hash and comparing that. X509_cmp() will be needed by the trust
     code.
     [Steve Henson]

B
Bodo Möller 已提交
7350 7351
  *) SSL_get1_session() is like SSL_get_session(), but increments
     the reference count in the SSL_SESSION returned.
7352 7353
     [Geoff Thorpe <geoff@eu.c2.net>]

7354 7355 7356 7357 7358
  *) Fix for 'req': it was adding a null to request attributes.
     Also change the X509_LOOKUP and X509_INFO code to handle
     certificate auxiliary information.
     [Steve Henson]

7359 7360 7361 7362
  *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
     the 'enc' command.
     [Steve Henson]

7363 7364
  *) Add the possibility to add extra information to the memory leak
     detecting output, to form tracebacks, showing from where each
7365 7366 7367 7368 7369
     allocation was originated: CRYPTO_push_info("constant string") adds
     the string plus current file name and line number to a per-thread
     stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
     is like calling CYRPTO_pop_info() until the stack is empty.
     Also updated memory leak detection code to be multi-thread-safe.
7370 7371
     [Richard Levitte]

7372
  *) Add options -text and -noout to pkcs7 utility and delete the
D
 
Dr. Stephen Henson 已提交
7373 7374 7375
     encryption options which never did anything. Update docs.
     [Steve Henson]

7376 7377 7378 7379 7380 7381
  *) Add options to some of the utilities to allow the pass phrase
     to be included on either the command line (not recommended on
     OSes like Unix) or read from the environment. Update the
     manpages and fix a few bugs.
     [Steve Henson]

7382 7383 7384
  *) Add a few manpages for some of the openssl commands.
     [Steve Henson]

7385 7386 7387 7388
  *) Fix the -revoke option in ca. It was freeing up memory twice,
     leaking and not finding already revoked certificates.
     [Steve Henson]

7389 7390 7391 7392 7393
  *) Extensive changes to support certificate auxiliary information.
     This involves the use of X509_CERT_AUX structure and X509_AUX
     functions. An X509_AUX function such as PEM_read_X509_AUX()
     can still read in a certificate file in the usual way but it
     will also read in any additional "auxiliary information". By
7394
     doing things this way a fair degree of compatibility can be
7395 7396 7397 7398 7399 7400 7401 7402 7403 7404
     retained: existing certificates can have this information added
     using the new 'x509' options. 

     Current auxiliary information includes an "alias" and some trust
     settings. The trust settings will ultimately be used in enhanced
     certificate chain verification routines: currently a certificate
     can only be trusted if it is self signed and then it is trusted
     for all purposes.
     [Steve Henson]

7405 7406 7407 7408 7409
  *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
     The problem was that one of the replacement routines had not been working
     since SSLeay releases.  For now the offending routine has been replaced
     with non-optimised assembler.  Even so, this now gives around 95%
     performance improvement for 1024 bit RSA signs.
7410 7411
     [Mark Cox]

7412 7413 7414 7415 7416
  *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2 
     handling. Most clients have the effective key size in bits equal to
     the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
     A few however don't do this and instead use the size of the decrypted key
     to determine the RC2 key length and the AlgorithmIdentifier to determine
7417
     the effective key length. In this case the effective key length can still
7418 7419 7420 7421 7422 7423
     be 40 bits but the key length can be 168 bits for example. This is fixed
     by manually forcing an RC2 key into the EVP_PKEY structure because the
     EVP code can't currently handle unusual RC2 key sizes: it always assumes
     the key length and effective key length are equal.
     [Steve Henson]

7424 7425 7426 7427 7428 7429 7430 7431 7432 7433 7434 7435 7436 7437 7438 7439 7440 7441
  *) Add a bunch of functions that should simplify the creation of 
     X509_NAME structures. Now you should be able to do:
     X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
     and have it automatically work out the correct field type and fill in
     the structures. The more adventurous can try:
     X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
     and it will (hopefully) work out the correct multibyte encoding.
     [Steve Henson]

  *) Change the 'req' utility to use the new field handling and multibyte
     copy routines. Before the DN field creation was handled in an ad hoc
     way in req, ca, and x509 which was rather broken and didn't support
     BMPStrings or UTF8Strings. Since some software doesn't implement
     BMPStrings or UTF8Strings yet, they can be enabled using the config file
     using the dirstring_type option. See the new comment in the default
     openssl.cnf for more info.
     [Steve Henson]

B
Bodo Möller 已提交
7442
  *) Make crypto/rand/md_rand.c more robust:
7443
     - Assure unique random numbers after fork().
B
Bodo Möller 已提交
7444 7445 7446 7447 7448 7449 7450 7451
     - Make sure that concurrent threads access the global counter and
       md serializably so that we never lose entropy in them
       or use exactly the same state in multiple threads.
       Access to the large state is not always serializable because
       the additional locking could be a performance killer, and
       md should be large enough anyway.
     [Bodo Moeller]

7452 7453 7454 7455 7456
  *) New file apps/app_rand.c with commonly needed functionality
     for handling the random seed file.

     Use the random seed file in some applications that previously did not:
          ca,
7457
          dsaparam -genkey (which also ignored its '-rand' option), 
7458 7459 7460 7461 7462
          s_client,
          s_server,
          x509 (when signing).
     Except on systems with /dev/urandom, it is crucial to have a random
     seed file at least for key creation, DSA signing, and for DH exchanges;
B
Bodo Möller 已提交
7463
     for RSA signatures we could do without one.
7464 7465

     gendh and gendsa (unlike genrsa) used to read only the first byte
7466
     of each file listed in the '-rand' option.  The function as previously
7467
     found in genrsa is now in app_rand.c and is used by all programs
7468
     that support '-rand'.
7469 7470 7471 7472 7473 7474 7475 7476 7477 7478
     [Bodo Moeller]

  *) In RAND_write_file, use mode 0600 for creating files;
     don't just chmod when it may be too late.
     [Bodo Moeller]

  *) Report an error from X509_STORE_load_locations
     when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
     [Bill Perry]

7479 7480 7481 7482 7483 7484 7485
  *) New function ASN1_mbstring_copy() this copies a string in either
     ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
     into an ASN1_STRING type. A mask of permissible types is passed
     and it chooses the "minimal" type to use or an error if not type
     is suitable.
     [Steve Henson]

7486 7487 7488 7489 7490 7491
  *) Add function equivalents to the various macros in asn1.h. The old
     macros are retained with an M_ prefix. Code inside the library can
     use the M_ macros. External code (including the openssl utility)
     should *NOT* in order to be "shared library friendly".
     [Steve Henson]

7492 7493 7494 7495 7496 7497 7498 7499
  *) Add various functions that can check a certificate's extensions
     to see if it usable for various purposes such as SSL client,
     server or S/MIME and CAs of these types. This is currently 
     VERY EXPERIMENTAL but will ultimately be used for certificate chain
     verification. Also added a -purpose flag to x509 utility to
     print out all the purposes.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
7500 7501 7502 7503
  *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
     functions.
     [Steve Henson]

7504 7505 7506 7507 7508 7509
  *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
     for, obtain and decode and extension and obtain its critical flag.
     This allows all the necessary extension code to be handled in a
     single function call.
     [Steve Henson]

7510 7511 7512 7513
  *) RC4 tune-up featuring 30-40% performance improvement on most RISC
     platforms. See crypto/rc4/rc4_enc.c for further details.
     [Andy Polyakov]

7514 7515 7516 7517 7518
  *) New -noout option to asn1parse. This causes no output to be produced
     its main use is when combined with -strparse and -out to extract data
     from a file (which may not be in ASN.1 format).
     [Steve Henson]

7519 7520 7521 7522
  *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
     when producing the local key id.
     [Richard Levitte <levitte@stacken.kth.se>]

7523 7524 7525 7526 7527 7528
  *) New option -dhparam in s_server. This allows a DH parameter file to be
     stated explicitly. If it is not stated then it tries the first server
     certificate file. The previous behaviour hard coded the filename
     "server.pem".
     [Steve Henson]

7529 7530 7531 7532 7533 7534
  *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
     a public key to be input or output. For example:
     openssl rsa -in key.pem -pubout -out pubkey.pem
     Also added necessary DSA public key functions to handle this.
     [Steve Henson]

D
 
Dr. Stephen Henson 已提交
7535 7536 7537 7538 7539 7540 7541 7542 7543 7544
  *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
     in the message. This was handled by allowing
     X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
     [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]

  *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
     to the end of the strings whereas this didn't. This would cause problems
     if strings read with d2i_ASN1_bytes() were later modified.
     [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]

7545 7546 7547 7548 7549 7550 7551 7552 7553 7554 7555 7556 7557 7558
  *) Fix for base64 decode bug. When a base64 bio reads only one line of
     data and it contains EOF it will end up returning an error. This is
     caused by input 46 bytes long. The cause is due to the way base64
     BIOs find the start of base64 encoded data. They do this by trying a
     trial decode on each line until they find one that works. When they
     do a flag is set and it starts again knowing it can pass all the
     data directly through the decoder. Unfortunately it doesn't reset
     the context it uses. This means that if EOF is reached an attempt
     is made to pass two EOFs through the context and this causes the
     resulting error. This can also cause other problems as well. As is
     usual with these problems it takes *ages* to find and the fix is
     trivial: move one line.
     [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]

7559 7560 7561 7562 7563 7564 7565 7566 7567 7568 7569 7570 7571
  *) Ugly workaround to get s_client and s_server working under Windows. The
     old code wouldn't work because it needed to select() on sockets and the
     tty (for keypresses and to see if data could be written). Win32 only
     supports select() on sockets so we select() with a 1s timeout on the
     sockets and then see if any characters are waiting to be read, if none
     are present then we retry, we also assume we can always write data to
     the tty. This isn't nice because the code then blocks until we've
     received a complete line of data and it is effectively polling the
     keyboard at 1s intervals: however it's quite a bit better than not
     working at all :-) A dedicated Windows application might handle this
     with an event loop for example.
     [Steve Henson]

7572 7573 7574 7575 7576 7577 7578 7579 7580 7581 7582
  *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
     and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
     will be called when RSA_sign() and RSA_verify() are used. This is useful
     if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
     For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
     should *not* be used: RSA_sign() and RSA_verify() must be used instead.
     This necessitated the support of an extra signature type NID_md5_sha1
     for SSL signatures and modifications to the SSL library to use it instead
     of calling RSA_public_decrypt() and RSA_private_encrypt().
     [Steve Henson]

7583 7584 7585
  *) Add new -verify -CAfile and -CApath options to the crl program, these
     will lookup a CRL issuers certificate and verify the signature in a
     similar way to the verify program. Tidy up the crl program so it
7586
     no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7587 7588 7589 7590
     less strict. It will now permit CRL extensions even if it is not
     a V2 CRL: this will allow it to tolerate some broken CRLs.
     [Steve Henson]

7591 7592 7593 7594 7595
  *) Initialize all non-automatic variables each time one of the openssl
     sub-programs is started (this is necessary as they may be started
     multiple times from the "OpenSSL>" prompt).
     [Lennart Bang, Bodo Moeller]

7596 7597 7598 7599 7600 7601 7602
  *) Preliminary compilation option RSA_NULL which disables RSA crypto without
     removing all other RSA functionality (this is what NO_RSA does). This
     is so (for example) those in the US can disable those operations covered
     by the RSA patent while allowing storage and parsing of RSA keys and RSA
     key generation.
     [Steve Henson]

7603
  *) Non-copying interface to BIO pairs.
7604
     (still largely untested)
7605 7606
     [Bodo Moeller]

7607 7608 7609 7610
  *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
     ASCII string. This was handled independently in various places before.
     [Steve Henson]

7611 7612 7613 7614
  *) New functions UTF8_getc() and UTF8_putc() that parse and generate
     UTF8 strings a character at a time.
     [Steve Henson]

7615 7616 7617 7618 7619
  *) Use client_version from client hello to select the protocol
     (s23_srvr.c) and for RSA client key exchange verification
     (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
     [Bodo Moeller]

7620 7621 7622 7623 7624 7625 7626
  *) Add various utility functions to handle SPKACs, these were previously
     handled by poking round in the structure internals. Added new function
     NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
     print, verify and generate SPKACs. Based on an original idea from
     Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
     [Steve Henson]

A
Andy Polyakov 已提交
7627 7628 7629
  *) RIPEMD160 is operational on all platforms and is back in 'make test'.
     [Andy Polyakov]

7630 7631 7632 7633 7634 7635 7636 7637
  *) Allow the config file extension section to be overwritten on the
     command line. Based on an original idea from Massimiliano Pala
     <madwolf@comune.modena.it>. The new option is called -extensions
     and can be applied to ca, req and x509. Also -reqexts to override
     the request extensions in req and -crlexts to override the crl extensions
     in ca.
     [Steve Henson]

7638 7639 7640 7641 7642 7643 7644
  *) Add new feature to the SPKAC handling in ca.  Now you can include
     the same field multiple times by preceding it by "XXXX." for example:
     1.OU="Unit name 1"
     2.OU="Unit name 2"
     this is the same syntax as used in the req config file.
     [Steve Henson]

7645 7646 7647 7648 7649 7650
  *) Allow certificate extensions to be added to certificate requests. These
     are specified in a 'req_extensions' option of the req section of the
     config file. They can be printed out with the -text option to req but
     are otherwise ignored at present.
     [Steve Henson]

7651
  *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7652
     data read consists of only the final block it would not decrypted because
7653 7654 7655 7656 7657
     EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
     A misplaced 'break' also meant the decrypted final block might not be
     copied until the next read.
     [Steve Henson]

7658 7659 7660 7661 7662
  *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
     a few extra parameters to the DH structure: these will be useful if
     for example we want the value of 'q' or implement X9.42 DH.
     [Steve Henson]

7663 7664 7665 7666 7667 7668 7669 7670
  *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
     provides hooks that allow the default DSA functions or functions on a
     "per key" basis to be replaced. This allows hardware acceleration and
     hardware key storage to be handled without major modification to the
     library. Also added low level modexp hooks and CRYPTO_EX structure and 
     associated functions.
     [Steve Henson]

7671 7672 7673 7674 7675 7676 7677 7678 7679
  *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
     as "read only": it can't be written to and the buffer it points to will
     not be freed. Reading from a read only BIO is much more efficient than
     a normal memory BIO. This was added because there are several times when
     an area of memory needs to be read from a BIO. The previous method was
     to create a memory BIO and write the data to it, this results in two
     copies of the data and an O(n^2) reading algorithm. There is a new
     function BIO_new_mem_buf() which creates a read only memory BIO from
     an area of memory. Also modified the PKCS#7 routines to use read only
7680
     memory BIOs.
7681 7682
     [Steve Henson]

7683 7684 7685 7686 7687 7688
  *) Bugfix: ssl23_get_client_hello did not work properly when called in
     state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
     a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
     but a retry condition occured while trying to read the rest.
     [Bodo Moeller]

7689 7690 7691 7692 7693 7694 7695 7696
  *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
     NID_pkcs7_encrypted by default: this was wrong since this should almost
     always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
     the encrypted data type: this is a more sensible place to put it and it
     allows the PKCS#12 code to be tidied up that duplicated this
     functionality.
     [Steve Henson]

7697 7698 7699 7700 7701
  *) Changed obj_dat.pl script so it takes its input and output files on
     the command line. This should avoid shell escape redirection problems
     under Win32.
     [Steve Henson]

7702
  *) Initial support for certificate extension requests, these are included
7703 7704
     in things like Xenroll certificate requests. Included functions to allow
     extensions to be obtained and added.
7705 7706
     [Steve Henson]

B
Bodo Möller 已提交
7707 7708 7709 7710
  *) -crlf option to s_client and s_server for sending newlines as
     CRLF (as required by many protocols).
     [Bodo Moeller]

B
Bodo Möller 已提交
7711
 Changes between 0.9.3a and 0.9.4  [09 Aug 1999]
7712
  
B
Bodo Möller 已提交
7713
  *) Install libRSAglue.a when OpenSSL is built with RSAref.
7714
     [Ralf S. Engelschall]
7715

7716 7717 7718
  *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
     [Andrija Antonijevic <TheAntony2@bigfoot.com>]

7719 7720 7721 7722
  *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
     program.
     [Steve Henson]

7723 7724 7725 7726 7727 7728 7729 7730 7731 7732 7733 7734 7735 7736 7737 7738 7739 7740 7741 7742 7743
  *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
     DH parameters/keys (q is lost during that conversion, but the resulting
     DH parameters contain its length).

     For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
     much faster than DH_generate_parameters (which creates parameters
     where p = 2*q + 1), and also the smaller q makes DH computations
     much more efficient (160-bit exponentiation instead of 1024-bit
     exponentiation); so this provides a convenient way to support DHE
     ciphersuites in SSL/TLS servers (see ssl/ssltest.c).  It is of
     utter importance to use
         SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
     or
         SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
     when such DH parameters are used, because otherwise small subgroup
     attacks may become possible!
     [Bodo Moeller]

  *) Avoid memory leak in i2d_DHparams.
     [Bodo Moeller]

7744 7745 7746 7747
  *) Allow the -k option to be used more than once in the enc program:
     this allows the same encrypted message to be read by multiple recipients.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
7748 7749 7750 7751 7752 7753
  *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
     an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
     it will always use the numerical form of the OID, even if it has a short
     or long name.
     [Steve Henson]

7754 7755 7756 7757
  *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
     method only got called if p,q,dmp1,dmq1,iqmp components were present,
     otherwise bn_mod_exp was called. In the case of hardware keys for example
     no private key components need be present and it might store extra data
7758 7759 7760
     in the RSA structure, which cannot be accessed from bn_mod_exp.
     By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
     private key operations.
7761 7762
     [Steve Henson]

A
Andy Polyakov 已提交
7763 7764 7765
  *) Added support for SPARC Linux.
     [Andy Polyakov]

7766 7767 7768 7769 7770 7771 7772 7773
  *) pem_password_cb function type incompatibly changed from
          typedef int pem_password_cb(char *buf, int size, int rwflag);
     to
          ....(char *buf, int size, int rwflag, void *userdata);
     so that applications can pass data to their callbacks:
     The PEM[_ASN1]_{read,write}... functions and macros now take an
     additional void * argument, which is just handed through whenever
     the password callback is called.
7774
     [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7775 7776 7777 7778 7779 7780 7781 7782 7783 7784

     New function SSL_CTX_set_default_passwd_cb_userdata.

     Compatibility note: As many C implementations push function arguments
     onto the stack in reverse order, the new library version is likely to
     interoperate with programs that have been compiled with the old
     pem_password_cb definition (PEM_whatever takes some data that
     happens to be on the stack as its last argument, and the callback
     just ignores this garbage); but there is no guarantee whatsoever that
     this will work.
B
Bodo Möller 已提交
7785

7786 7787 7788
  *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
     (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
     problems not only on Windows, but also on some Unix platforms.
7789
     To avoid problematic command lines, these definitions are now in an
7790 7791
     auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
     for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7792 7793
     [Bodo Moeller]

7794 7795 7796
  *) MIPS III/IV assembler module is reimplemented.
     [Andy Polyakov]

U
Ulf Möller 已提交
7797 7798 7799 7800
  *) More DES library cleanups: remove references to srand/rand and
     delete an unused file.
     [Ulf Möller]

7801 7802 7803 7804 7805 7806
  *) Add support for the the free Netwide assembler (NASM) under Win32,
     since not many people have MASM (ml) and it can be hard to obtain.
     This is currently experimental but it seems to work OK and pass all
     the tests. Check out INSTALL.W32 for info.
     [Steve Henson]

B
Bodo Möller 已提交
7807 7808 7809 7810 7811 7812
  *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
     without temporary keys kept an extra copy of the server key,
     and connections with temporary keys did not free everything in case
     of an error.
     [Bodo Moeller]

B
Bodo Möller 已提交
7813 7814 7815 7816
  *) New function RSA_check_key and new openssl rsa option -check
     for verifying the consistency of RSA keys.
     [Ulf Moeller, Bodo Moeller]

7817 7818 7819 7820 7821
  *) Various changes to make Win32 compile work: 
     1. Casts to avoid "loss of data" warnings in p5_crpt2.c
     2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
        comparison" warnings.
     3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7822
     [Steve Henson]
7823

7824 7825 7826 7827 7828
  *) Add a debugging option to PKCS#5 v2 key generation function: when
     you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
     derived keys are printed to stderr.
     [Steve Henson]

7829 7830 7831
  *) Copy the flags in ASN1_STRING_dup().
     [Roman E. Pavlov <pre@mo.msk.ru>]

7832 7833 7834 7835 7836 7837 7838 7839 7840 7841 7842 7843 7844 7845 7846
  *) The x509 application mishandled signing requests containing DSA
     keys when the signing key was also DSA and the parameters didn't match.

     It was supposed to omit the parameters when they matched the signing key:
     the verifying software was then supposed to automatically use the CA's
     parameters if they were absent from the end user certificate.

     Omitting parameters is no longer recommended. The test was also
     the wrong way round! This was probably due to unusual behaviour in
     EVP_cmp_parameters() which returns 1 if the parameters match. 
     This meant that parameters were omitted when they *didn't* match and
     the certificate was useless. Certificates signed with 'ca' didn't have
     this bug.
     [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]

7847 7848
  *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
     The interface is as follows:
B
Bodo Möller 已提交
7849 7850 7851 7852 7853 7854 7855 7856 7857 7858 7859
     Applications can use
         CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
         CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
     "off" is now the default.
     The library internally uses
         CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
         CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
     to disable memory-checking temporarily.

     Some inconsistent states that previously were possible (and were
     even the default) are now avoided.
7860 7861 7862 7863

     -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
     with each memory chunk allocated; this is occasionally more helpful
     than just having a counter.
7864 7865 7866 7867 7868

     -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.

     -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
     extensions.
B
Bodo Möller 已提交
7869 7870
     [Bodo Moeller]

7871 7872 7873
  *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
     which largely parallels "options", but is for changing API behaviour,
     whereas "options" are about protocol behaviour.
7874
     Initial "mode" flags are:
7875 7876 7877 7878 7879 7880 7881 7882 7883

     SSL_MODE_ENABLE_PARTIAL_WRITE   Allow SSL_write to report success when
                                     a single record has been written.
     SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER  Don't insist that SSL_write
                                     retries use the same buffer location.
                                     (But all of the contents must be
                                     copied!)
     [Bodo Moeller]

7884
  *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7885 7886
     worked.

U
Ulf Möller 已提交
7887 7888 7889
  *) Fix problems with no-hmac etc.
     [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]

7890 7891 7892 7893 7894
  *) New functions RSA_get_default_method(), RSA_set_method() and
     RSA_get_method(). These allows replacement of RSA_METHODs without having
     to mess around with the internals of an RSA structure.
     [Steve Henson]

B
Bodo Möller 已提交
7895 7896 7897 7898 7899
  *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
     Also really enable memory leak checks in openssl.c and in some
     test programs.
     [Chad C. Mulligan, Bodo Moeller]

7900 7901 7902 7903 7904 7905 7906 7907
  *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
     up the length of negative integers. This has now been simplified to just
     store the length when it is first determined and use it later, rather
     than trying to keep track of where data is copied and updating it to
     point to the end.
     [Steve Henson, reported by Brien Wheeler
      <bwheeler@authentica-security.com>]

7908 7909 7910 7911 7912 7913 7914 7915
  *) Add a new function PKCS7_signatureVerify. This allows the verification
     of a PKCS#7 signature but with the signing certificate passed to the
     function itself. This contrasts with PKCS7_dataVerify which assumes the
     certificate is present in the PKCS#7 structure. This isn't always the
     case: certificates can be omitted from a PKCS#7 structure and be
     distributed by "out of band" means (such as a certificate database).
     [Steve Henson]

7916 7917 7918 7919 7920
  *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
     function prototypes in pem.h, also change util/mkdef.pl to add the
     necessary function names. 
     [Steve Henson]

7921
  *) mk1mf.pl (used by Windows builds) did not properly read the
7922
     options set by Configure in the top level Makefile, and Configure
B
Bodo Möller 已提交
7923
     was not even able to write more than one option correctly.
7924
     Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7925 7926
     [Bodo Moeller]

7927 7928 7929 7930 7931
  *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
     file to be loaded from a BIO or FILE pointer. The BIO version will
     for example allow memory BIOs to contain config info.
     [Steve Henson]

B
Bodo Möller 已提交
7932 7933 7934
  *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
     Whoever hopes to achieve shared-library compatibility across versions
     must use this, not the compile-time macro.
B
Bodo Möller 已提交
7935 7936 7937 7938
     (Exercise 0.9.4: Which is the minimum library version required by
     such programs?)
     Note: All this applies only to multi-threaded programs, others don't
     need locks.
B
Bodo Möller 已提交
7939 7940
     [Bodo Moeller]

B
Bodo Möller 已提交
7941 7942 7943 7944 7945 7946 7947 7948 7949 7950
  *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
     through a BIO pair triggered the default case, i.e.
     SSLerr(...,SSL_R_UNKNOWN_STATE).
     [Bodo Moeller]

  *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
     can use the SSL library even if none of the specific BIOs is
     appropriate.
     [Bodo Moeller]

7951 7952 7953 7954
  *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
     for the encoded length.
     [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]

7955 7956 7957
  *) Add initial documentation of the X509V3 functions.
     [Steve Henson]

7958 7959 7960 7961 7962 7963
  *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and 
     PEM_write_bio_PKCS8PrivateKey() that are equivalent to
     PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
     secure PKCS#8 private key format with a high iteration count.
     [Steve Henson]

7964 7965 7966 7967
  *) Fix determination of Perl interpreter: A perl or perl5
     _directory_ in $PATH was also accepted as the interpreter.
     [Ralf S. Engelschall]

7968 7969 7970 7971 7972 7973
  *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
     wrong with it but it was very old and did things like calling
     PEM_ASN1_read() directly and used MD5 for the hash not to mention some
     unusual formatting.
     [Steve Henson]

7974 7975 7976 7977 7978 7979 7980 7981 7982 7983
  *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
     to use the new extension code.
     [Steve Henson]

  *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
     with macros. This should make it easier to change their form, add extra
     arguments etc. Fix a few PEM prototypes which didn't have cipher as a
     constant.
     [Steve Henson]

B
Bodo Möller 已提交
7984 7985 7986 7987 7988
  *) Add to configuration table a new entry that can specify an alternative
     name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
     according to Mark Crispin <MRC@Panda.COM>.
     [Bodo Moeller]

7989
#if 0
7990 7991
  *) DES CBC did not update the IV. Weird.
     [Ben Laurie]
7992
#else
7993 7994 7995
     des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
     Changing the behaviour of the former might break existing programs --
     where IV updating is needed, des_ncbc_encrypt can be used.
7996
#endif
7997

7998 7999 8000 8001 8002 8003
  *) When bntest is run from "make test" it drives bc to check its
     calculations, as well as internally checking them. If an internal check
     fails, it needs to cause bc to give a non-zero result or make test carries
     on without noticing the failure. Fixed.
     [Ben Laurie]

8004 8005 8006
  *) DES library cleanups.
     [Ulf Möller]

8007 8008 8009 8010 8011 8012 8013 8014
  *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
     used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
     ciphers. NOTE: although the key derivation function has been verified
     against some published test vectors it has not been extensively tested
     yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
     of v2.0.
     [Steve Henson]

B
Bodo Möller 已提交
8015 8016
  *) Instead of "mkdir -p", which is not fully portable, use new
     Perl script "util/mkdir-p.pl".
B
Bodo Möller 已提交
8017
     [Bodo Moeller]
B
Bodo Möller 已提交
8018

8019 8020 8021 8022 8023 8024 8025 8026 8027 8028 8029
  *) Rewrite the way password based encryption (PBE) is handled. It used to
     assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
     structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
     but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
     the 'parameter' field of the AlgorithmIdentifier is passed to the
     underlying key generation function so it must do its own ASN1 parsing.
     This has also changed the EVP_PBE_CipherInit() function which now has a
     'parameter' argument instead of literal salt and iteration count values
     and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
     [Steve Henson]

8030
  *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8031 8032 8033 8034 8035
     and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
     Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
     KEY" because this clashed with PKCS#8 unencrypted string. Since this
     value was just used as a "magic string" and not used directly its
     value doesn't matter.
8036 8037
     [Steve Henson]

8038 8039 8040 8041
  *) Introduce some semblance of const correctness to BN. Shame C doesn't
     support mutable.
     [Ben Laurie]

B
Bodo Möller 已提交
8042
  *) "linux-sparc64" configuration (ultrapenguin).
B
Bodo Möller 已提交
8043
     [Ray Miller <ray.miller@oucs.ox.ac.uk>]
B
Bodo Möller 已提交
8044 8045
     "linux-sparc" configuration.
     [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
B
Bodo Möller 已提交
8046

8047 8048 8049 8050 8051 8052 8053 8054 8055 8056
  *) config now generates no-xxx options for missing ciphers.
     [Ulf Möller]

  *) Support the EBCDIC character set (work in progress).
     File ebcdic.c not yet included because it has a different license.
     [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]

  *) Support BS2000/OSD-POSIX.
     [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]

B
Ben Laurie 已提交
8057 8058 8059
  *) Make callbacks for key generation use void * instead of char *.
     [Ben Laurie]

B
Ben Laurie 已提交
8060 8061 8062
  *) Make S/MIME samples compile (not yet tested).
     [Ben Laurie]

B
Bodo Möller 已提交
8063 8064 8065
  *) Additional typesafe stacks.
     [Ben Laurie]

B
Bodo Möller 已提交
8066
  *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
B
Bodo Möller 已提交
8067 8068
     [Bodo Moeller]

B
Bodo Möller 已提交
8069

B
Ben Laurie 已提交
8070
 Changes between 0.9.3 and 0.9.3a  [29 May 1999]
8071

B
Bodo Möller 已提交
8072 8073
  *) New configuration variant "sco5-gcc".

B
Bodo Möller 已提交
8074
  *) Updated some demos.
B
Bodo Möller 已提交
8075
     [Sean O Riordain, Wade Scholine]
B
Bodo Möller 已提交
8076

B
Bodo Möller 已提交
8077 8078 8079 8080 8081 8082
  *) Add missing BIO_free at exit of pkcs12 application.
     [Wu Zhigang]

  *) Fix memory leak in conf.c.
     [Steve Henson]

8083 8084 8085 8086 8087 8088 8089 8090 8091 8092 8093 8094 8095
  *) Updates for Win32 to assembler version of MD5.
     [Steve Henson]

  *) Set #! path to perl in apps/der_chop to where we found it
     instead of using a fixed path.
     [Bodo Moeller]

  *) SHA library changes for irix64-mips4-cc.
     [Andy Polyakov]

  *) Improvements for VMS support.
     [Richard Levitte]

B
Bodo Möller 已提交
8096

B
Bodo Möller 已提交
8097
 Changes between 0.9.2b and 0.9.3  [24 May 1999]
U
Ulf Möller 已提交
8098

8099 8100 8101 8102
  *) Bignum library bug fix. IRIX 6 passes "make test" now!
     This also avoids the problems with SC4.2 and unpatched SC5.  
     [Andy Polyakov <appro@fy.chalmers.se>]

8103 8104 8105 8106 8107 8108 8109 8110 8111 8112 8113 8114
  *) New functions sk_num, sk_value and sk_set to replace the previous macros.
     These are required because of the typesafe stack would otherwise break 
     existing code. If old code used a structure member which used to be STACK
     and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
     sk_num or sk_value it would produce an error because the num, data members
     are not present in STACK_OF. Now it just produces a warning. sk_set
     replaces the old method of assigning a value to sk_value
     (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
     that does this will no longer work (and should use sk_set instead) but
     this could be regarded as a "questionable" behaviour anyway.
     [Steve Henson]

8115 8116 8117 8118
  *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
     correctly handle encrypted S/MIME data.
     [Steve Henson]

B
Bodo Möller 已提交
8119
  *) Change type of various DES function arguments from des_cblock
B
Typo.  
Bodo Möller 已提交
8120
     (which means, in function argument declarations, pointer to char)
B
Bodo Möller 已提交
8121 8122 8123 8124 8125 8126 8127
     to des_cblock * (meaning pointer to array with 8 char elements),
     which allows the compiler to do more typechecking; it was like
     that back in SSLeay, but with lots of ugly casts.

     Introduce new type const_des_cblock.
     [Bodo Moeller]

8128 8129 8130 8131 8132
  *) Reorganise the PKCS#7 library and get rid of some of the more obvious
     problems: find RecipientInfo structure that matches recipient certificate
     and initialise the ASN1 structures properly based on passed cipher.
     [Steve Henson]

B
Ben Laurie 已提交
8133 8134 8135
  *) Belatedly make the BN tests actually check the results.
     [Ben Laurie]

8136 8137 8138 8139 8140 8141
  *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
     to and from BNs: it was completely broken. New compilation option
     NEG_PUBKEY_BUG to allow for some broken certificates that encode public
     key elements as negative integers.
     [Steve Henson]

U
Ulf Möller 已提交
8142 8143 8144
  *) Reorganize and speed up MD5.
     [Andy Polyakov <appro@fy.chalmers.se>]

U
Ulf Möller 已提交
8145 8146
  *) VMS support.
     [Richard Levitte <richard@levitte.org>]
8147

8148 8149 8150 8151 8152
  *) New option -out to asn1parse to allow the parsed structure to be
     output to a file. This is most useful when combined with the -strparse
     option to examine the output of things like OCTET STRINGS.
     [Steve Henson]

8153 8154 8155 8156 8157 8158 8159
  *) Make SSL library a little more fool-proof by not requiring any longer
     that SSL_set_{accept,connect}_state be called before
     SSL_{accept,connect} may be used (SSL_set_..._state is omitted
     in many applications because usually everything *appeared* to work as
     intended anyway -- now it really works as intended).
     [Bodo Moeller]

U
Ulf Möller 已提交
8160 8161 8162
  *) Move openssl.cnf out of lib/.
     [Ulf Möller]

8163 8164 8165 8166 8167
  *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
     -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
     -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+ 
     [Ralf S. Engelschall]

8168 8169 8170 8171
  *) Various fixes to the EVP and PKCS#7 code. It may now be able to
     handle PKCS#7 enveloped data properly.
     [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]

8172 8173 8174 8175 8176 8177 8178 8179 8180 8181 8182 8183 8184 8185 8186 8187
  *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
     copying pointers.  The cert_st handling is changed by this in
     various ways (and thus what used to be known as ctx->default_cert
     is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
     any longer when s->cert does not give us what we need).
     ssl_cert_instantiate becomes obsolete by this change.
     As soon as we've got the new code right (possibly it already is?),
     we have solved a couple of bugs of the earlier code where s->cert
     was used as if it could not have been shared with other SSL structures.

     Note that using the SSL API in certain dirty ways now will result
     in different behaviour than observed with earlier library versions:
     Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
     does not influence s as it used to.
     
     In order to clean up things more thoroughly, inside SSL_SESSION
8188 8189 8190 8191 8192
     we don't use CERT any longer, but a new structure SESS_CERT
     that holds per-session data (if available); currently, this is
     the peer's certificate chain and, for clients, the server's certificate
     and temporary key.  CERT holds only those values that can have
     meaningful defaults in an SSL_CTX.
8193 8194
     [Bodo Moeller]

8195 8196 8197 8198 8199 8200
  *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
     from the internal representation. Various PKCS#7 fixes: remove some
     evil casts and set the enc_dig_alg field properly based on the signing
     key type.
     [Steve Henson]

8201 8202 8203 8204 8205 8206 8207 8208 8209 8210 8211 8212
  *) Allow PKCS#12 password to be set from the command line or the
     environment. Let 'ca' get its config file name from the environment
     variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
     and 'x509').
     [Steve Henson]

  *) Allow certificate policies extension to use an IA5STRING for the
     organization field. This is contrary to the PKIX definition but
     VeriSign uses it and IE5 only recognises this form. Document 'x509'
     extension option.
     [Steve Henson]

B
Ben Laurie 已提交
8213 8214 8215 8216
  *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
     without disallowing inline assembler and the like for non-pedantic builds.
     [Ben Laurie]

8217 8218 8219 8220 8221 8222
  *) Support Borland C++ builder.
     [Janez Jere <jj@void.si>, modified by Ulf Möller]

  *) Support Mingw32.
     [Ulf Möller]

8223 8224 8225
  *) SHA-1 cleanups and performance enhancements.
     [Andy Polyakov <appro@fy.chalmers.se>]

U
Ulf Möller 已提交
8226
  *) Sparc v8plus assembler for the bignum library.
8227
     [Andy Polyakov <appro@fy.chalmers.se>]
U
Ulf Möller 已提交
8228

8229 8230 8231 8232 8233 8234
  *) Accept any -xxx and +xxx compiler options in Configure.
     [Ulf Möller]

  *) Update HPUX configuration.
     [Anonymous]
  
8235 8236 8237
  *) Add missing sk_<type>_unshift() function to safestack.h
     [Ralf S. Engelschall]

8238 8239 8240 8241 8242 8243
  *) New function SSL_CTX_use_certificate_chain_file that sets the
     "extra_cert"s in addition to the certificate.  (This makes sense
     only for "PEM" format files, as chains as a whole are not
     DER-encoded.)
     [Bodo Moeller]

8244 8245 8246 8247 8248 8249 8250
  *) Support verify_depth from the SSL API.
     x509_vfy.c had what can be considered an off-by-one-error:
     Its depth (which was not part of the external interface)
     was actually counting the number of certificates in a chain;
     now it really counts the depth.
     [Bodo Moeller]

8251 8252 8253 8254 8255 8256
  *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
     instead of X509err, which often resulted in confusing error
     messages since the error codes are not globally unique
     (e.g. an alleged error in ssl3_accept when a certificate
     didn't match the private key).

8257
  *) New function SSL_CTX_set_session_id_context that allows to set a default
B
Bodo Möller 已提交
8258 8259
     value (so that you don't need SSL_set_session_id_context for each
     connection using the SSL_CTX).
8260 8261
     [Bodo Moeller]

U
Ulf Möller 已提交
8262 8263 8264
  *) OAEP decoding bug fix.
     [Ulf Möller]

8265 8266 8267 8268
  *) Support INSTALL_PREFIX for package builders, as proposed by
     David Harris.
     [Bodo Moeller]

B
 
Bodo Möller 已提交
8269 8270 8271 8272 8273
  *) New Configure options "threads" and "no-threads".  For systems
     where the proper compiler options are known (currently Solaris
     and Linux), "threads" is the default.
     [Bodo Moeller]

8274 8275 8276
  *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
     [Bodo Moeller]

8277 8278 8279 8280 8281
  *) Install various scripts to $(OPENSSLDIR)/misc, not to
     $(INSTALLTOP)/bin -- they shouldn't clutter directories
     such as /usr/local/bin.
     [Bodo Moeller]

U
Ulf Möller 已提交
8282
  *) "make linux-shared" to build shared libraries.
8283
     [Niels Poppe <niels@netbox.org>]
U
Ulf Möller 已提交
8284

8285 8286 8287
  *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
     [Ulf Möller]

8288 8289 8290 8291
  *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
     extension adding in x509 utility.
     [Steve Henson]

8292 8293 8294
  *) Remove NOPROTO sections and error code comments.
     [Ulf Möller]

8295 8296 8297 8298
  *) Partial rewrite of the DEF file generator to now parse the ANSI
     prototypes.
     [Steve Henson]

8299
  *) New Configure options --prefix=DIR and --openssldir=DIR.
U
Ulf Möller 已提交
8300
     [Ulf Möller]
8301

8302 8303 8304 8305 8306 8307 8308 8309
  *) Complete rewrite of the error code script(s). It is all now handled
     by one script at the top level which handles error code gathering,
     header rewriting and C source file generation. It should be much better
     than the old method: it now uses a modified version of Ulf's parser to
     read the ANSI prototypes in all header files (thus the old K&R definitions
     aren't needed for error creation any more) and do a better job of
     translating function codes into names. The old 'ASN1 error code imbedded
     in a comment' is no longer necessary and it doesn't use .err files which
8310 8311
     have now been deleted. Also the error code call doesn't have to appear all
     on one line (which resulted in some large lines...).
8312 8313
     [Steve Henson]

B
 
Bodo Möller 已提交
8314
  *) Change #include filenames from <foo.h> to <openssl/foo.h>.
B
 
Bodo Möller 已提交
8315 8316
     [Bodo Moeller]

8317 8318 8319 8320
  *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
     0 (which usually indicates a closed connection), but continue reading.
     [Bodo Moeller]

B
 
Bodo Möller 已提交
8321 8322 8323
  *) Fix some race conditions.
     [Bodo Moeller]

8324 8325 8326 8327
  *) Add support for CRL distribution points extension. Add Certificate
     Policies and CRL distribution points documentation.
     [Steve Henson]

8328 8329 8330
  *) Move the autogenerated header file parts to crypto/opensslconf.h.
     [Ulf Möller]

B
Ben Laurie 已提交
8331 8332 8333 8334 8335
  *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
     8 of keying material. Merlin has also confirmed interop with this fix
     between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
     [Merlin Hughes <merlin@baltimore.ie>]

U
Ulf Möller 已提交
8336 8337 8338 8339 8340
  *) Fix lots of warnings.
     [Richard Levitte <levitte@stacken.kth.se>]
 
  *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
     the directory spec didn't end with a LIST_SEPARATOR_CHAR.
B
Ben Laurie 已提交
8341
     [Richard Levitte <levitte@stacken.kth.se>]
U
Ulf Möller 已提交
8342
 
U
Ulf Möller 已提交
8343 8344 8345
  *) Fix problems with sizeof(long) == 8.
     [Andy Polyakov <appro@fy.chalmers.se>]

U
Ulf Möller 已提交
8346 8347 8348
  *) Change functions to ANSI C.
     [Ulf Möller]

U
Ulf Möller 已提交
8349 8350 8351
  *) Fix typos in error codes.
     [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]

8352 8353 8354
  *) Remove defunct assembler files from Configure.
     [Ulf Möller]

U
Ulf Möller 已提交
8355 8356 8357
  *) SPARC v8 assembler BIGNUM implementation.
     [Andy Polyakov <appro@fy.chalmers.se>]

8358
  *) Support for Certificate Policies extension: both print and set.
8359
     Various additions to support the r2i method this uses.
8360 8361
     [Steve Henson]

B
Ben Laurie 已提交
8362 8363 8364 8365
  *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
     return a const string when you are expecting an allocated buffer.
     [Ben Laurie]

8366 8367
  *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
     types DirectoryString and DisplayText.
8368 8369
     [Steve Henson]

8370 8371 8372 8373
  *) Add code to allow r2i extensions to access the configuration database,
     add an LHASH database driver and add several ctx helper functions.
     [Steve Henson]

8374 8375 8376 8377
  *) Fix an evil bug in bn_expand2() which caused various BN functions to
     fail when they extended the size of a BIGNUM.
     [Steve Henson]

8378 8379 8380 8381
  *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
     support typesafe stack.
     [Steve Henson]

B
Typo.  
Ben Laurie 已提交
8382 8383 8384
  *) Fix typo in SSL_[gs]et_options().
     [Nils Frostberg <nils@medcom.se>]

8385 8386 8387 8388
  *) Delete various functions and files that belonged to the (now obsolete)
     old X509V3 handling code.
     [Steve Henson]

U
Ulf Möller 已提交
8389 8390 8391
  *) New Configure option "rsaref".
     [Ulf Möller]

8392 8393 8394
  *) Don't auto-generate pem.h.
     [Bodo Moeller]

B
Ben Laurie 已提交
8395 8396 8397
  *) Introduce type-safe ASN.1 SETs.
     [Ben Laurie]

8398
  *) Convert various additional casted stacks to type-safe STACK_OF() variants.
B
Ben Laurie 已提交
8399
     [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8400

B
Ben Laurie 已提交
8401 8402 8403 8404 8405 8406 8407
  *) Introduce type-safe STACKs. This will almost certainly break lots of code
     that links with OpenSSL (well at least cause lots of warnings), but fear
     not: the conversion is trivial, and it eliminates loads of evil casts. A
     few STACKed things have been converted already. Feel free to convert more.
     In the fullness of time, I'll do away with the STACK type altogether.
     [Ben Laurie]

8408 8409 8410 8411 8412 8413
  *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
     specified in <certfile> by updating the entry in the index.txt file.
     This way one no longer has to edit the index.txt file manually for
     revoking a certificate. The -revoke option does the gory details now.
     [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]

8414 8415 8416 8417 8418
  *) Fix `openssl crl -noout -text' combination where `-noout' killed the
     `-text' option at all and this way the `-noout -text' combination was
     inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
     [Ralf S. Engelschall]

8419 8420 8421 8422 8423
  *) Make sure a corresponding plain text error message exists for the
     X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
     verify callback function determined that a certificate was revoked.
     [Ralf S. Engelschall]

B
 
Bodo Möller 已提交
8424 8425 8426 8427 8428 8429 8430 8431
  *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
     ciphers that were excluded, e.g. by -DNO_IDEA.  Also, test
     all available cipers including rc5, which was forgotten until now.
     In order to let the testing shell script know which algorithms
     are available, a new (up to now undocumented) command
     "openssl list-cipher-commands" is used.
     [Bodo Moeller]

8432 8433 8434 8435
  *) Bugfix: s_client occasionally would sleep in select() when
     it should have checked SSL_pending() first.
     [Bodo Moeller]

U
Ulf Möller 已提交
8436 8437 8438 8439 8440
  *) New functions DSA_do_sign and DSA_do_verify to provide access to
     the raw DSA values prior to ASN.1 encoding.
     [Ulf Möller]

  *) Tweaks to Configure
B
Bodo Möller 已提交
8441
     [Niels Poppe <niels@netbox.org>]
U
Ulf Möller 已提交
8442

8443 8444 8445 8446
  *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
     yet...
     [Steve Henson]

8447 8448 8449
  *) New variables $(RANLIB) and $(PERL) in the Makefiles.
     [Ulf Möller]

U
Ulf Möller 已提交
8450 8451 8452 8453
  *) New config option to avoid instructions that are illegal on the 80386.
     The default code is faster, but requires at least a 486.
     [Ulf Möller]
  
8454 8455 8456 8457 8458 8459 8460 8461
  *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
     SSL2_SERVER_VERSION (not used at all) macros, which are now the
     same as SSL2_VERSION anyway.
     [Bodo Moeller]

  *) New "-showcerts" option for s_client.
     [Bodo Moeller]

8462 8463 8464 8465
  *) Still more PKCS#12 integration. Add pkcs12 application to openssl
     application. Various cleanups and fixes.
     [Steve Henson]

8466 8467 8468 8469 8470
  *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
     modify error routines to work internally. Add error codes and PBE init
     to library startup routines.
     [Steve Henson]

8471 8472 8473 8474 8475
  *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
     packing functions to asn1 and evp. Changed function names and error
     codes along the way.
     [Steve Henson]

8476 8477
  *) PKCS12 integration: and so it begins... First of several patches to
     slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8478
     objects to objects.h
8479 8480
     [Steve Henson]

8481 8482 8483 8484
  *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
     and display support for Thawte strong extranet extension.
     [Steve Henson]

B
Ben Laurie 已提交
8485 8486 8487
  *) Add LinuxPPC support.
     [Jeff Dubrule <igor@pobox.org>]

8488 8489 8490 8491
  *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
     bn_div_words in alpha.s.
     [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]

8492 8493 8494 8495
  *) Make sure the RSA OAEP test is skipped under -DRSAref because
     OAEP isn't supported when OpenSSL is built with RSAref.
     [Ulf Moeller <ulf@fitug.de>]

8496 8497 8498 8499
  *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h 
     so they no longer are missing under -DNOPROTO. 
     [Soren S. Jorvang <soren@t.dk>]

8500 8501

 Changes between 0.9.1c and 0.9.2b  [22 Mar 1999]
8502

B
Ben Laurie 已提交
8503 8504 8505 8506 8507 8508 8509 8510 8511 8512
  *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
     doesn't work when the session is reused. Coming soon!
     [Ben Laurie]

  *) Fix a security hole, that allows sessions to be reused in the wrong
     context thus bypassing client cert protection! All software that uses
     client certs and session caches in multiple contexts NEEDS PATCHING to
     allow session reuse! A fuller solution is in the works.
     [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]

8513 8514 8515 8516 8517 8518
  *) Some more source tree cleanups (removed obsolete files
     crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
     permission on "config" script to be executable) and a fix for the INSTALL
     document.
     [Ulf Moeller <ulf@fitug.de>]

8519 8520 8521 8522
  *) Remove some legacy and erroneous uses of malloc, free instead of
     Malloc, Free.
     [Lennart Bang <lob@netstream.se>, with minor changes by Steve]

B
Ben Laurie 已提交
8523 8524 8525
  *) Make rsa_oaep_test return non-zero on error.
     [Ulf Moeller <ulf@fitug.de>]

B
Ben Laurie 已提交
8526 8527 8528 8529 8530
  *) Add support for native Solaris shared libraries. Configure
     solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
     if someone would make that last step automatic.
     [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]

8531 8532 8533
  *) ctx_size was not built with the right compiler during "make links". Fixed.
     [Ben Laurie]

8534 8535 8536 8537 8538 8539
  *) Change the meaning of 'ALL' in the cipher list. It now means "everything
     except NULL ciphers". This means the default cipher list will no longer
     enable NULL ciphers. They need to be specifically enabled e.g. with
     the string "DEFAULT:eNULL".
     [Steve Henson]

8540 8541 8542 8543 8544
  *) Fix to RSA private encryption routines: if p < q then it would
     occasionally produce an invalid result. This will only happen with
     externally generated keys because OpenSSL (and SSLeay) ensure p > q.
     [Steve Henson]

8545 8546 8547 8548 8549 8550 8551
  *) Be less restrictive and allow also `perl util/perlpath.pl
     /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
     because this way one can also use an interpreter named `perl5' (which is
     usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
     installed as `perl').
     [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]

8552 8553 8554
  *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
     [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]

8555 8556 8557
  *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
     advapi32.lib to Win32 build and change the pem test comparision
     to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8558 8559 8560
     suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
     and crypto/des/ede_cbcm_enc.c.
     [Steve Henson]
8561

B
Ben Laurie 已提交
8562 8563 8564
  *) DES quad checksum was broken on big-endian architectures. Fixed.
     [Ben Laurie]

8565 8566 8567 8568 8569
  *) Comment out two functions in bio.h that aren't implemented. Fix up the
     Win32 test batch file so it (might) work again. The Win32 test batch file
     is horrible: I feel ill....
     [Steve Henson]

8570 8571 8572 8573
  *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
     in e_os.h. Audit of header files to check ANSI and non ANSI
     sections: 10 functions were absent from non ANSI section and not exported
     from Windows DLLs. Fixed up libeay.num for new functions.
8574
     [Steve Henson]
8575

8576 8577 8578
  *) Make `openssl version' output lines consistent.
     [Ralf S. Engelschall]

8579 8580 8581 8582 8583
  *) Fix Win32 symbol export lists for BIO functions: Added
     BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
     to ms/libeay{16,32}.def.
     [Ralf S. Engelschall]

8584 8585 8586 8587 8588 8589 8590 8591 8592
  *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
     fine under Unix and passes some trivial tests I've now added. But the
     whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
     added to make sure no one expects that this stuff really works in the
     OpenSSL 0.9.2 release.  Additionally I've started to clean the XS sources
     up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
     openssl_bio.xs.
     [Ralf S. Engelschall]

B
Ben Laurie 已提交
8593 8594 8595
  *) Fix the generation of two part addresses in perl.
     [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]

B
Ben Laurie 已提交
8596 8597 8598
  *) Add config entry for Linux on MIPS.
     [John Tobey <jtobey@channel1.com>]

B
Ben Laurie 已提交
8599
  *) Make links whenever Configure is run, unless we are on Windoze.
B
Ben Laurie 已提交
8600 8601
     [Ben Laurie]

8602 8603 8604
  *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
     Currently only issuerAltName and AuthorityKeyIdentifier make any sense
     in CRLs.
8605
     [Steve Henson]
8606

8607 8608 8609 8610 8611 8612 8613 8614 8615 8616 8617 8618
  *) Add a useful kludge to allow package maintainers to specify compiler and
     other platforms details on the command line without having to patch the
     Configure script everytime: One now can use ``perl Configure
     <id>:<details>'', i.e. platform ids are allowed to have details appended
     to them (seperated by colons). This is treated as there would be a static
     pre-configured entry in Configure's %table under key <id> with value
     <details> and ``perl Configure <id>'' is called.  So, when you want to
     perform a quick test-compile under FreeBSD 3.1 with pgcc and without
     assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
     now, which overrides the FreeBSD-elf entry on-the-fly.
     [Ralf S. Engelschall]

B
Ben Laurie 已提交
8619 8620 8621
  *) Disable new TLS1 ciphersuites by default: they aren't official yet.
     [Ben Laurie]

8622 8623 8624 8625 8626 8627
  *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
     on the `perl Configure ...' command line. This way one can compile
     OpenSSL libraries with Position Independent Code (PIC) which is needed
     for linking it into DSOs.
     [Ralf S. Engelschall]

B
Ben Laurie 已提交
8628 8629 8630 8631
  *) Remarkably, export ciphers were totally broken and no-one had noticed!
     Fixed.
     [Ben Laurie]

8632 8633 8634 8635 8636 8637 8638
  *) Cleaned up the LICENSE document: The official contact for any license
     questions now is the OpenSSL core team under openssl-core@openssl.org.
     And add a paragraph about the dual-license situation to make sure people
     recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
     to the OpenSSL toolkit.
     [Ralf S. Engelschall]

8639 8640 8641 8642 8643 8644 8645 8646
  *) General source tree makefile cleanups: Made `making xxx in yyy...'
     display consistent in the source tree and replaced `/bin/rm' by `rm'.
     Additonally cleaned up the `make links' target: Remove unnecessary
     semicolons, subsequent redundant removes, inline point.sh into mklink.sh
     to speed processing and no longer clutter the display with confusing
     stuff. Instead only the actually done links are displayed.
     [Ralf S. Engelschall]

B
Ben Laurie 已提交
8647 8648 8649 8650 8651 8652
  *) Permit null encryption ciphersuites, used for authentication only. It used
     to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
     It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
     encryption.
     [Ben Laurie]

8653 8654 8655 8656 8657 8658
  *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
     signed attributes when verifying signatures (this would break them), 
     the detached data encoding was wrong and public keys obtained using
     X509_get_pubkey() weren't freed.
     [Steve Henson]

8659 8660 8661 8662 8663 8664
  *) Add text documentation for the BUFFER functions. Also added a work around
     to a Win95 console bug. This was triggered by the password read stuff: the
     last character typed gets carried over to the next fread(). If you were 
     generating a new cert request using 'req' for example then the last
     character of the passphrase would be CR which would then enter the first
     field as blank.
8665 8666
     [Steve Henson]

8667 8668 8669 8670 8671 8672
  *) Added the new `Includes OpenSSL Cryptography Software' button as
     doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
     button and can be used by applications based on OpenSSL to show the
     relationship to the OpenSSL project.  
     [Ralf S. Engelschall]

8673 8674 8675 8676
  *) Remove confusing variables in function signatures in files
     ssl/ssl_lib.c and ssl/ssl.h.
     [Lennart Bong <lob@kulthea.stacken.kth.se>]

8677 8678 8679
  *) Don't install bss_file.c under PREFIX/include/
     [Lennart Bong <lob@kulthea.stacken.kth.se>]

8680 8681 8682 8683 8684 8685 8686
  *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
     functions that return function pointers and has support for NT specific
     stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
     #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
     unsigned to signed types: this was killing the Win32 compile.
     [Steve Henson]

8687 8688 8689 8690 8691
  *) Add new certificate file to stack functions,
     SSL_add_dir_cert_subjects_to_stack() and
     SSL_add_file_cert_subjects_to_stack().  These largely supplant
     SSL_load_client_CA_file(), and can be used to add multiple certs easily
     to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8692 8693 8694 8695
     This means that Apache-SSL and similar packages don't have to mess around
     to add as many CAs as they want to the preferred list.
     [Ben Laurie]

8696 8697 8698 8699 8700
  *) Experiment with doxygen documentation. Currently only partially applied to
     ssl/ssl_lib.c.
     See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
     openssl.doxy as the configuration file.
     [Ben Laurie]
8701 8702 8703
  
  *) Get rid of remaining C++-style comments which strict C compilers hate.
     [Ralf S. Engelschall, pointed out by Carlos Amengual]
8704

8705 8706 8707 8708
  *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
     compiled in by default: it has problems with large keys.
     [Steve Henson]

8709 8710 8711 8712 8713 8714 8715 8716 8717 8718 8719 8720 8721 8722 8723 8724 8725 8726
  *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
     DH private keys and/or callback functions which directly correspond to
     their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
     is needed for applications which have to configure certificates on a
     per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
     (e.g. s_server). 
        For the RSA certificate situation is makes no difference, but
     for the DSA certificate situation this fixes the "no shared cipher"
     problem where the OpenSSL cipher selection procedure failed because the
     temporary keys were not overtaken from the context and the API provided
     no way to reconfigure them. 
        The new functions now let applications reconfigure the stuff and they
     are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
     SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback.  Additionally a new
     non-public-API function ssl_cert_instantiate() is used as a helper
     function and also to reduce code redundancy inside ssl_rsa.c.
     [Ralf S. Engelschall]

8727 8728 8729 8730 8731
  *) Move s_server -dcert and -dkey options out of the undocumented feature
     area because they are useful for the DSA situation and should be
     recognized by the users.
     [Ralf S. Engelschall]

8732 8733 8734 8735 8736 8737
  *) Fix the cipher decision scheme for export ciphers: the export bits are
     *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
     SSL_EXP_MASK.  So, the original variable has to be used instead of the
     already masked variable.
     [Richard Levitte <levitte@stacken.kth.se>]

8738 8739 8740
  *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
     [Richard Levitte <levitte@stacken.kth.se>]

8741 8742 8743 8744 8745
  *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
     from `int' to `unsigned int' because it's a length and initialized by
     EVP_DigestFinal() which expects an `unsigned int *'.
     [Richard Levitte <levitte@stacken.kth.se>]

8746 8747 8748 8749
  *) Don't hard-code path to Perl interpreter on shebang line of Configure
     script. Instead use the usual Shell->Perl transition trick.
     [Ralf S. Engelschall]

8750 8751 8752 8753 8754 8755 8756 8757 8758 8759 8760
  *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
     (in addition to RSA certificates) to match the behaviour of `openssl dsa
     -noout -modulus' as it's already the case for `openssl rsa -noout
     -modulus'.  For RSA the -modulus is the real "modulus" while for DSA
     currently the public key is printed (a decision which was already done by
     `openssl dsa -modulus' in the past) which serves a similar purpose.
     Additionally the NO_RSA no longer completely removes the whole -modulus
     option; it now only avoids using the RSA stuff. Same applies to NO_DSA
     now, too.
     [Ralf S.  Engelschall]

B
Ben Laurie 已提交
8761 8762 8763 8764
  *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
     BIO. See the source (crypto/evp/bio_ok.c) for more info.
     [Arne Ansper <arne@ats.cyber.ee>]

8765 8766 8767 8768 8769
  *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
     to be added. Now both 'req' and 'ca' can use new objects defined in the
     config file.
     [Steve Henson]

B
Ben Laurie 已提交
8770 8771 8772
  *) Add cool BIO that does syslog (or event log on NT).
     [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]

8773 8774 8775 8776 8777 8778
  *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
     TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
     TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
     Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
     [Ben Laurie]

8779 8780 8781
  *) Add preliminary config info for new extension code.
     [Steve Henson]

8782 8783 8784
  *) Make RSA_NO_PADDING really use no padding.
     [Ulf Moeller <ulf@fitug.de>]

8785 8786 8787
  *) Generate errors when private/public key check is done.
     [Ben Laurie]

8788 8789 8790 8791
  *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
     for some CRL extensions and new objects added.
     [Steve Henson]

8792 8793 8794 8795
  *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
     key usage extension and fuller support for authority key id.
     [Steve Henson]

B
Ben Laurie 已提交
8796 8797 8798 8799 8800 8801 8802 8803 8804
  *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
     padding method for RSA, which is recommended for new applications in PKCS
     #1 v2.0 (RFC 2437, October 1998).
     OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
     foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
     against Bleichbacher's attack on RSA.
     [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
      Ben Laurie]

8805 8806 8807 8808 8809 8810 8811 8812 8813
  *) Updates to the new SSL compression code
     [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]

  *) Fix so that the version number in the master secret, when passed
     via RSA, checks that if TLS was proposed, but we roll back to SSLv3
     (because the server will not accept higher), that the version number
     is 0x03,0x01, not 0x03,0x00
     [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]

8814 8815
  *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
     leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8816
     in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8817 8818
     [Steve Henson]

8819 8820 8821
  *) Support for RAW extensions where an arbitrary extension can be
     created by including its DER encoding. See apps/openssl.cnf for
     an example.
8822
     [Steve Henson]
8823

8824 8825 8826 8827
  *) Make sure latest Perl versions don't interpret some generated C array
     code as Perl array code in the crypto/err/err_genc.pl script.
     [Lars Weber <3weber@informatik.uni-hamburg.de>]

8828 8829 8830 8831 8832 8833
  *) Modify ms/do_ms.bat to not generate assembly language makefiles since
     not many people have the assembler. Various Win32 compilation fixes and
     update to the INSTALL.W32 file with (hopefully) more accurate Win32
     build instructions.
     [Steve Henson]

8834 8835 8836 8837 8838 8839
  *) Modify configure script 'Configure' to automatically create crypto/date.h
     file under Win32 and also build pem.h from pem.org. New script
     util/mkfiles.pl to create the MINFO file on environments that can't do a
     'make files': perl util/mkfiles.pl >MINFO should work.
     [Steve Henson]

8840 8841 8842 8843 8844 8845
  *) Major rework of DES function declarations, in the pursuit of correctness
     and purity. As a result, many evil casts evaporated, and some weirdness,
     too. You may find this causes warnings in your code. Zapping your evil
     casts will probably fix them. Mostly.
     [Ben Laurie]

8846 8847 8848 8849 8850 8851
  *) Fix for a typo in asn1.h. Bug fix to object creation script
     obj_dat.pl. It considered a zero in an object definition to mean
     "end of object": none of the objects in objects.h have any zeros
     so it wasn't spotted.
     [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]

B
Ben Laurie 已提交
8852 8853 8854 8855 8856 8857
  *) Add support for Triple DES Cipher Block Chaining with Output Feedback
     Masking (CBCM). In the absence of test vectors, the best I have been able
     to do is check that the decrypt undoes the encrypt, so far. Send me test
     vectors if you have them.
     [Ben Laurie]

R
Ralf S. Engelschall 已提交
8858
  *) Correct calculation of key length for export ciphers (too much space was
8859 8860 8861
     allocated for null ciphers). This has not been tested!
     [Ben Laurie]

8862 8863 8864 8865 8866 8867 8868
  *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
     message is now correct (it understands "crypto" and "ssl" on its
     command line). There is also now an "update" option. This will update
     the util/ssleay.num and util/libeay.num files with any new functions.
     If you do a: 
     perl util/mkdef.pl crypto ssl update
     it will update them.
8869
     [Steve Henson]
8870

8871 8872 8873 8874 8875 8876 8877 8878 8879
  *) Overhauled the Perl interface (perl/*):
     - ported BN stuff to OpenSSL's different BN library
     - made the perl/ source tree CVS-aware
     - renamed the package from SSLeay to OpenSSL (the files still contain
       their history because I've copied them in the repository)
     - removed obsolete files (the test scripts will be replaced
       by better Test::Harness variants in the future)
     [Ralf S. Engelschall]

R
Ralf S. Engelschall 已提交
8880 8881 8882 8883 8884 8885 8886 8887 8888 8889 8890
  *) First cut for a very conservative source tree cleanup:
     1. merge various obsolete readme texts into doc/ssleay.txt
     where we collect the old documents and readme texts.
     2. remove the first part of files where I'm already sure that we no
     longer need them because of three reasons: either they are just temporary
     files which were left by Eric or they are preserved original files where
     I've verified that the diff is also available in the CVS via "cvs diff
     -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
     the crypto/md/ stuff).
     [Ralf S. Engelschall]

8891 8892 8893 8894 8895 8896 8897
  *) More extension code. Incomplete support for subject and issuer alt
     name, issuer and authority key id. Change the i2v function parameters
     and add an extra 'crl' parameter in the X509V3_CTX structure: guess
     what that's for :-) Fix to ASN1 macro which messed up
     IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
     [Steve Henson]

8898 8899 8900 8901
  *) Preliminary support for ENUMERATED type. This is largely copied from the
     INTEGER code.
     [Steve Henson]

8902 8903 8904
  *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
     [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]

8905 8906 8907
  *) Make sure `make rehash' target really finds the `openssl' program.
     [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]

8908 8909 8910 8911
  *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
     like to hear about it if this slows down other processors.
     [Ben Laurie]

8912 8913 8914
  *) Add CygWin32 platform information to Configure script.
     [Alan Batie <batie@aahz.jf.intel.com>]

8915 8916
  *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
     [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8917 8918 8919
  
  *) New program nseq to manipulate netscape certificate sequences
     [Steve Henson]
R
Ralf S. Engelschall 已提交
8920

8921 8922 8923 8924
  *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
     few typos.
     [Steve Henson]

8925 8926 8927 8928 8929
  *) Fixes to BN code.  Previously the default was to define BN_RECURSION
     but the BN code had some problems that would cause failures when
     doing certificate verification and some other functions.
     [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]

8930 8931 8932
  *) Add ASN1 and PEM code to support netscape certificate sequences.
     [Steve Henson]

8933 8934 8935
  *) Add ASN1 and PEM code to support netscape certificate sequences.
     [Steve Henson]

8936 8937 8938
  *) Add several PKIX and private extended key usage OIDs.
     [Steve Henson]

8939 8940 8941 8942
  *) Modify the 'ca' program to handle the new extension code. Modify
     openssl.cnf for new extension format, add comments.
     [Steve Henson]

8943 8944 8945 8946 8947
  *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
     and add a sample to openssl.cnf so req -x509 now adds appropriate
     CA extensions.
     [Steve Henson]

8948 8949
  *) Continued X509 V3 changes. Add to other makefiles, integrate with the
     error code, add initial support to X509_print() and x509 application.
8950
     [Steve Henson]
8951

8952 8953 8954 8955 8956
  *) Takes a deep breath and start addding X509 V3 extension support code. Add
     files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
     stuff is currently isolated and isn't even compiled yet.
     [Steve Henson]

8957 8958 8959 8960 8961 8962 8963
  *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
     ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
     Removed the versions check from X509 routines when loading extensions:
     this allows certain broken certificates that don't set the version
     properly to be processed.
     [Steve Henson]

8964 8965 8966 8967 8968
  *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
     Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
     can still be regenerated with "make depend".
     [Ben Laurie]

B
Ben Laurie 已提交
8969 8970 8971
  *) Spelling mistake in C version of CAST-128.
     [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]

8972 8973 8974 8975 8976 8977 8978 8979 8980
  *) Changes to the error generation code. The perl script err-code.pl 
     now reads in the old error codes and retains the old numbers, only
     adding new ones if necessary. It also only changes the .err files if new
     codes are added. The makefiles have been modified to only insert errors
     when needed (to avoid needlessly modifying header files). This is done
     by only inserting errors if the .err file is newer than the auto generated
     C file. To rebuild all the error codes from scratch (the old behaviour)
     either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
     or delete all the .err files.
8981
     [Steve Henson]
8982

8983 8984 8985 8986 8987 8988 8989 8990 8991 8992
  *) CAST-128 was incorrectly implemented for short keys. The C version has
     been fixed, but is untested. The assembler versions are also fixed, but
     new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
     to regenerate it if needed.
     [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
      Hagino <itojun@kame.net>]

  *) File was opened incorrectly in randfile.c.
     [Ulf Möller <ulf@fitug.de>]

8993 8994 8995 8996 8997 8998 8999
  *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
     functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
     GeneralizedTime. ASN1_TIME is the proper type used in certificates et
     al: it's just almost always a UTCTime. Note this patch adds new error
     codes so do a "make errors" if there are problems.
     [Steve Henson]

B
Ben Laurie 已提交
9000 9001 9002
  *) Correct Linux 1 recognition in config.
     [Ulf Möller <ulf@fitug.de>]

B
Ben Laurie 已提交
9003 9004 9005
  *) Remove pointless MD5 hash when using DSA keys in ca.
     [Anonymous <nobody@replay.com>]

9006 9007 9008 9009 9010
  *) Generate an error if given an empty string as a cert directory. Also
     generate an error if handed NULL (previously returned 0 to indicate an
     error, but didn't set one).
     [Ben Laurie, reported by Anonymous <nobody@replay.com>]

B
Ben Laurie 已提交
9011 9012 9013
  *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
     [Ben Laurie]

9014 9015 9016 9017
  *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
     parameters. This was causing a warning which killed off the Win32 compile.
     [Steve Henson]

D
 
Dr. Stephen Henson 已提交
9018 9019 9020
  *) Remove C++ style comments from crypto/bn/bn_local.h.
     [Neil Costigan <neil.costigan@celocom.com>]

9021 9022 9023 9024 9025 9026 9027 9028
  *) The function OBJ_txt2nid was broken. It was supposed to return a nid
     based on a text string, looking up short and long names and finally
     "dot" format. The "dot" format stuff didn't work. Added new function
     OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote 
     OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
     OID is not part of the table.
     [Steve Henson]

9029 9030 9031 9032
  *) Add prototypes to X509 lookup/verify methods, fixing a bug in
     X509_LOOKUP_by_alias().
     [Ben Laurie]

B
Ben Laurie 已提交
9033 9034 9035
  *) Sort openssl functions by name.
     [Ben Laurie]

9036 9037 9038 9039 9040
  *) Get the gendsa program working (hopefully) and add it to app list. Remove
     encryption from sample DSA keys (in case anyone is interested the password
     was "1234").
     [Steve Henson]

B
Ben Laurie 已提交
9041 9042 9043
  *) Make _all_ *_free functions accept a NULL pointer.
     [Frans Heymans <fheymans@isaserver.be>]

B
Ben Laurie 已提交
9044 9045 9046 9047
  *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
     NULL pointers.
     [Anonymous <nobody@replay.com>]

B
Ben Laurie 已提交
9048 9049 9050
  *) s_server should send the CAfile as acceptable CAs, not its own cert.
     [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]

B
Ben Laurie 已提交
9051 9052 9053
  *) Don't blow it for numeric -newkey arguments to apps/req.
     [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]

B
Ben Laurie 已提交
9054 9055 9056
  *) Temp key "for export" tests were wrong in s3_srvr.c.
     [Anonymous <nobody@replay.com>]

9057 9058 9059 9060
  *) Add prototype for temp key callback functions
     SSL_CTX_set_tmp_{rsa,dh}_callback().
     [Ben Laurie]

9061 9062
  *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
     DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9063
     [Steve Henson]
9064

B
Ben Laurie 已提交
9065 9066 9067
  *) X509_name_add_entry() freed the wrong thing after an error.
     [Arne Ansper <arne@ats.cyber.ee>]

B
Ben Laurie 已提交
9068 9069 9070
  *) rsa_eay.c would attempt to free a NULL context.
     [Arne Ansper <arne@ats.cyber.ee>]

9071 9072 9073
  *) BIO_s_socket() had a broken should_retry() on Windoze.
     [Arne Ansper <arne@ats.cyber.ee>]

B
Ben Laurie 已提交
9074 9075 9076
  *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
     [Arne Ansper <arne@ats.cyber.ee>]

9077 9078 9079 9080 9081
  *) Make sure the already existing X509_STORE->depth variable is initialized
     in X509_STORE_new(), but document the fact that this variable is still
     unused in the certificate verification process.
     [Ralf S. Engelschall]

9082
  *) Fix the various library and apps files to free up pkeys obtained from
9083
     X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9084 9085
     [Steve Henson]

B
Ben Laurie 已提交
9086 9087 9088 9089
  *) Fix reference counting in X509_PUBKEY_get(). This makes
     demos/maurice/example2.c work, amongst others, probably.
     [Steve Henson and Ben Laurie]

9090 9091 9092 9093
  *) First cut of a cleanup for apps/. First the `ssleay' program is now named
     `openssl' and second, the shortcut symlinks for the `openssl <command>'
     are no longer created. This way we have a single and consistent command
     line interface `openssl <command>', similar to `cvs <command>'.
B
Ben Laurie 已提交
9094
     [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9095

9096 9097 9098 9099
  *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
     BIT STRING wrapper always have zero unused bits.
     [Steve Henson]

9100 9101 9102
  *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
     [Steve Henson]

9103 9104 9105
  *) Make the top-level INSTALL documentation easier to understand.
     [Paul Sutton]

9106 9107 9108
  *) Makefiles updated to exit if an error occurs in a sub-directory
     make (including if user presses ^C) [Paul Sutton]

B
Ben Laurie 已提交
9109 9110 9111 9112 9113 9114 9115 9116 9117
  *) Make Montgomery context stuff explicit in RSA data structure.
     [Ben Laurie]

  *) Fix build order of pem and err to allow for generated pem.h.
     [Ben Laurie]

  *) Fix renumbering bug in X509_NAME_delete_entry().
     [Ben Laurie]

S
stephen 已提交
9118 9119 9120 9121 9122 9123 9124 9125 9126 9127 9128 9129 9130
  *) Enhanced the err-ins.pl script so it makes the error library number 
     global and can add a library name. This is needed for external ASN1 and
     other error libraries.
     [Steve Henson]

  *) Fixed sk_insert which never worked properly.
     [Steve Henson]

  *) Fix ASN1 macros so they can handle indefinite length construted 
     EXPLICIT tags. Some non standard certificates use these: they can now
     be read in.
     [Steve Henson]

9131 9132 9133 9134 9135 9136
  *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
     into a single doc/ssleay.txt bundle. This way the information is still
     preserved but no longer messes up this directory. Now it's new room for
     the new set of documenation files.
     [Ralf S. Engelschall]

9137 9138 9139 9140 9141 9142 9143 9144 9145
  *) SETs were incorrectly DER encoded. This was a major pain, because they
     shared code with SEQUENCEs, which aren't coded the same. This means that
     almost everything to do with SETs or SEQUENCEs has either changed name or
     number of arguments.
     [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]

  *) Fix test data to work with the above.
     [Ben Laurie]

9146 9147
  *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
     was already fixed by Eric for 0.9.1 it seems.
9148
     [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9149

B
Ben Laurie 已提交
9150 9151 9152
  *) Autodetect FreeBSD3.
     [Ben Laurie]

9153 9154 9155 9156 9157 9158 9159
  *) Fix various bugs in Configure. This affects the following platforms:
     nextstep
     ncr-scde
     unixware-2.0
     unixware-2.0-pentium
     sco5-cc.
     [Ben Laurie]
R
Ralf S. Engelschall 已提交
9160

B
Ben Laurie 已提交
9161 9162 9163 9164 9165 9166 9167
  *) Eliminate generated files from CVS. Reorder tests to regenerate files
     before they are needed.
     [Ben Laurie]

  *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
     [Ben Laurie]

9168 9169

 Changes between 0.9.1b and 0.9.1c  [23-Dec-1998]
R
Ralf S. Engelschall 已提交
9170

R
Ralf S. Engelschall 已提交
9171 9172
  *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and 
     changed SSLeay to OpenSSL in version strings.
R
Ralf S. Engelschall 已提交
9173
     [Ralf S. Engelschall]
R
Ralf S. Engelschall 已提交
9174 9175 9176
  
  *) Some fixups to the top-level documents.
     [Paul Sutton]
9177

9178 9179 9180 9181 9182 9183
  *) Fixed the nasty bug where rsaref.h was not found under compile-time
     because the symlink to include/ was missing.
     [Ralf S. Engelschall]

  *) Incorporated the popular no-RSA/DSA-only patches 
     which allow to compile a RSA-free SSLeay.
R
Ralf S. Engelschall 已提交
9184
     [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9185 9186 9187 9188 9189 9190 9191 9192

  *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
     when "ssleay" is still not found.
     [Ralf S. Engelschall]

  *) Added more platforms to Configure: Cray T3E, HPUX 11, 
     [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]

9193 9194 9195 9196 9197 9198 9199 9200 9201 9202 9203 9204 9205 9206 9207 9208 9209 9210 9211 9212 9213 9214 9215 9216 9217 9218 9219
  *) Updated the README file.
     [Ralf S. Engelschall]

  *) Added various .cvsignore files in the CVS repository subdirs
     to make a "cvs update" really silent.
     [Ralf S. Engelschall]

  *) Recompiled the error-definition header files and added
     missing symbols to the Win32 linker tables.
     [Ralf S. Engelschall]

  *) Cleaned up the top-level documents;
     o new files: CHANGES and LICENSE
     o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay 
     o merged COPYRIGHT into LICENSE
     o removed obsolete TODO file
     o renamed MICROSOFT to INSTALL.W32
     [Ralf S. Engelschall]

  *) Removed dummy files from the 0.9.1b source tree: 
     crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
     crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
     crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
     crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
     util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
     [Ralf S. Engelschall]

9220
  *) Added various platform portability fixes.
R
Ralf S. Engelschall 已提交
9221
     [Mark J. Cox]
9222

R
Ralf S. Engelschall 已提交
9223
  *) The Genesis of the OpenSSL rpject:
9224
     We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9225
     Young and Tim J. Hudson created while they were working for C2Net until
9226
     summer 1998.
R
Ralf S. Engelschall 已提交
9227
     [The OpenSSL Project]
9228
 
9229 9230

 Changes between 0.9.0b and 0.9.1b  [not released]
9231 9232 9233 9234 9235 9236 9237 9238 9239 9240 9241 9242 9243 9244 9245 9246 9247 9248 9249 9250 9251 9252 9253 9254 9255 9256 9257 9258 9259 9260 9261 9262 9263 9264 9265 9266 9267 9268 9269 9270 9271 9272 9273 9274 9275 9276 9277 9278 9279 9280 9281 9282 9283 9284 9285 9286 9287 9288 9289 9290 9291 9292 9293 9294 9295 9296 9297 9298 9299 9300 9301 9302 9303 9304 9305 9306 9307 9308 9309 9310 9311 9312 9313 9314 9315 9316 9317 9318 9319 9320 9321 9322 9323 9324 9325 9326 9327 9328 9329 9330

  *) Updated a few CA certificates under certs/
     [Eric A. Young]

  *) Changed some BIGNUM api stuff.
     [Eric A. Young]

  *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD, 
     DGUX x86, Linux Alpha, etc.
     [Eric A. Young]

  *) New COMP library [crypto/comp/] for SSL Record Layer Compression: 
     RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
     available).
     [Eric A. Young]

  *) Add -strparse option to asn1pars program which parses nested 
     binary structures 
     [Dr Stephen Henson <shenson@bigfoot.com>]

  *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
     [Eric A. Young]

  *) DSA fix for "ca" program.
     [Eric A. Young]

  *) Added "-genkey" option to "dsaparam" program.
     [Eric A. Young]

  *) Added RIPE MD160 (rmd160) message digest.
     [Eric A. Young]

  *) Added -a (all) option to "ssleay version" command.
     [Eric A. Young]

  *) Added PLATFORM define which is the id given to Configure.
     [Eric A. Young]

  *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
     [Eric A. Young]

  *) Extended the ASN.1 parser routines.
     [Eric A. Young]

  *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
     [Eric A. Young]

  *) Added a BN_CTX to the BN library.
     [Eric A. Young]

  *) Fixed the weak key values in DES library
     [Eric A. Young]

  *) Changed API in EVP library for cipher aliases.
     [Eric A. Young]

  *) Added support for RC2/64bit cipher.
     [Eric A. Young]

  *) Converted the lhash library to the crypto/mem.c functions.
     [Eric A. Young]

  *) Added more recognized ASN.1 object ids.
     [Eric A. Young]

  *) Added more RSA padding checks for SSL/TLS.
     [Eric A. Young]

  *) Added BIO proxy/filter functionality.
     [Eric A. Young]

  *) Added extra_certs to SSL_CTX which can be used
     send extra CA certificates to the client in the CA cert chain sending
     process. It can be configured with SSL_CTX_add_extra_chain_cert().
     [Eric A. Young]

  *) Now Fortezza is denied in the authentication phase because
     this is key exchange mechanism is not supported by SSLeay at all.
     [Eric A. Young]

  *) Additional PKCS1 checks.
     [Eric A. Young]

  *) Support the string "TLSv1" for all TLS v1 ciphers.
     [Eric A. Young]

  *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
     ex_data index of the SSL context in the X509_STORE_CTX ex_data.
     [Eric A. Young]

  *) Fixed a few memory leaks.
     [Eric A. Young]

  *) Fixed various code and comment typos.
     [Eric A. Young]

  *) A minor bug in ssl/s3_clnt.c where there would always be 4 0 
     bytes sent in the client random.
     [Edward Bishop <ebishop@spyglass.com>]