Update S/MIME code to use default digest.

crypto/pkcs7/pk7_lib.c

@@ -390,6 +390,20 @@ PKCS7_SIGNER_INFO *PKCS7_add_signature(PKCS7 *p7, X509 *x509, EVP_PKEY *pkey,
 	{
 	PKCS7_SIGNER_INFO *si;
 
+	if (dgst == NULL)
+		{
+		int def_nid;
+		if (EVP_PKEY_get_default_digest_nid(pkey, &def_nid) <= 0)
+			goto err;
+		dgst = EVP_get_digestbynid(def_nid);
+		if (dgst == NULL)
+			{
+			PKCS7err(PKCS7_F_PKCS7_ADD_SIGNATURE,
+						PKCS7_R_NO_DEFAULT_DIGEST);
+			goto err;
+			}
+		}
+
 	if ((si=PKCS7_SIGNER_INFO_new()) == NULL) goto err;
 	if (!PKCS7_SIGNER_INFO_set(si,x509,pkey,dgst)) goto err;
 	if (!PKCS7_add_signer(p7,si)) goto err;

crypto/pkcs7/pk7_smime.c

@@ -86,7 +86,7 @@ PKCS7 *PKCS7_sign(X509 *signcert, EVP_PKEY *pkey, STACK_OF(X509) *certs,
 
 	PKCS7_content_new(p7, NID_pkcs7_data);
 
-    	if (!(si = PKCS7_add_signature(p7,signcert,pkey,EVP_sha1()))) {
+    	if (!(si = PKCS7_add_signature(p7,signcert,pkey,NULL))) {
 		PKCS7err(PKCS7_F_PKCS7_SIGN,PKCS7_R_PKCS7_ADD_SIGNATURE_ERROR);
 		PKCS7_free(p7);
 		return NULL;

crypto/pkcs7/pkcs7.h

@@ -394,6 +394,7 @@ void ERR_load_PKCS7_strings(void);
 #define PKCS7_F_PKCS7_ADD_CERTIFICATE			 100
 #define PKCS7_F_PKCS7_ADD_CRL				 101
 #define PKCS7_F_PKCS7_ADD_RECIPIENT_INFO		 102
+#define PKCS7_F_PKCS7_ADD_SIGNATURE			 131
 #define PKCS7_F_PKCS7_ADD_SIGNER			 103
 #define PKCS7_F_PKCS7_BIO_ADD_DIGEST			 125
 #define PKCS7_F_PKCS7_CTRL				 104
@@ -440,6 +441,7 @@ void ERR_load_PKCS7_strings(void);
 #define PKCS7_R_MISSING_CERIPEND_INFO			 103
 #define PKCS7_R_NO_CONTENT				 122
 #define PKCS7_R_NO_CONTENT_TYPE				 135
+#define PKCS7_R_NO_DEFAULT_DIGEST			 151
 #define PKCS7_R_NO_MULTIPART_BODY_FAILURE		 136
 #define PKCS7_R_NO_MULTIPART_BOUNDARY			 137
 #define PKCS7_R_NO_RECIPIENT_MATCHES_CERTIFICATE	 115

crypto/pkcs7/pkcs7err.c

@@ -76,6 +76,7 @@ static ERR_STRING_DATA PKCS7_str_functs[]=
 {ERR_FUNC(PKCS7_F_PKCS7_ADD_CERTIFICATE),	"PKCS7_add_certificate"},
 {ERR_FUNC(PKCS7_F_PKCS7_ADD_CRL),	"PKCS7_add_crl"},
 {ERR_FUNC(PKCS7_F_PKCS7_ADD_RECIPIENT_INFO),	"PKCS7_add_recipient_info"},
+{ERR_FUNC(PKCS7_F_PKCS7_ADD_SIGNATURE),	"PKCS7_add_signature"},
 {ERR_FUNC(PKCS7_F_PKCS7_ADD_SIGNER),	"PKCS7_add_signer"},
 {ERR_FUNC(PKCS7_F_PKCS7_BIO_ADD_DIGEST),	"PKCS7_BIO_ADD_DIGEST"},
 {ERR_FUNC(PKCS7_F_PKCS7_CTRL),	"PKCS7_CTRL"},
@@ -125,6 +126,7 @@ static ERR_STRING_DATA PKCS7_str_reasons[]=
 {ERR_REASON(PKCS7_R_MISSING_CERIPEND_INFO),"missing ceripend info"},
 {ERR_REASON(PKCS7_R_NO_CONTENT)          ,"no content"},
 {ERR_REASON(PKCS7_R_NO_CONTENT_TYPE)     ,"no content type"},
+{ERR_REASON(PKCS7_R_NO_DEFAULT_DIGEST)   ,"no default digest"},
 {ERR_REASON(PKCS7_R_NO_MULTIPART_BODY_FAILURE),"no multipart body failure"},
 {ERR_REASON(PKCS7_R_NO_MULTIPART_BOUNDARY),"no multipart boundary"},
 {ERR_REASON(PKCS7_R_NO_RECIPIENT_MATCHES_CERTIFICATE),"no recipient matches certificate"},