OpenSSL 0.9.7 stable 2002 05 08 merge

1 files changed, 149 insertions, 3 deletions

diff --git a/src/lib/libcrypto/asn1/a_sign.c b/src/lib/libcrypto/asn1/a_sign.c
index 4c651706d2..de53b44144 100644
--- a/src/lib/libcrypto/asn1/a_sign.c
+++ b/src/lib/libcrypto/asn1/a_sign.c
@@ -55,6 +55,59 @@
  * copied and put under another distribution licence
  * [including the GNU Public Licence.]
  */
+/* ====================================================================
+ * Copyright (c) 1998-2002 The OpenSSL Project.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer. 
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ *    software must display the following acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    openssl-core@openssl.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com).  This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
 
 #include <stdio.h>
 #include <time.h>
@@ -71,6 +124,8 @@
 #include <openssl/objects.h>
 #include <openssl/buffer.h>
 
+#ifndef NO_ASN1_OLD
+
 int ASN1_sign(int (*i2d)(), X509_ALGOR *algor1, X509_ALGOR *algor2,
              ASN1_BIT_STRING *signature, char *data, EVP_PKEY *pkey,
              const EVP_MD *type)
@@ -80,6 +135,7 @@ int ASN1_sign(int (*i2d)(), X509_ALGOR *algor1, X509_ALGOR *algor2,
         int i,inl=0,outl=0,outll=0;
         X509_ALGOR *a;
 
+        EVP_MD_CTX_init(&ctx);
         for (i=0; i<2; i++)
                 {
                 if (i == 0)
@@ -87,7 +143,14 @@ int ASN1_sign(int (*i2d)(), X509_ALGOR *algor1, X509_ALGOR *algor2,
                 else
                         a=algor2;
                 if (a == NULL) continue;
-                if (    (a->parameter == NULL) || 
+                if (type->pkey_type == NID_dsaWithSHA1)
+                        {
+                        /* special case: RFC 2459 tells us to omit 'parameters'
+                         * with id-dsa-with-sha1 */
+                        ASN1_TYPE_free(a->parameter);
+                        a->parameter = NULL;
+                        }
+                else if ((a->parameter == NULL) || 
                         (a->parameter->type != V_ASN1_NULL))
                         {
                         ASN1_TYPE_free(a->parameter);
@@ -120,7 +183,90 @@ int ASN1_sign(int (*i2d)(), X509_ALGOR *algor1, X509_ALGOR *algor2,
         p=buf_in;
 
         i2d(data,&p);
-        EVP_SignInit(&ctx,type);
+        EVP_SignInit_ex(&ctx,type, NULL);
+        EVP_SignUpdate(&ctx,(unsigned char *)buf_in,inl);
+        if (!EVP_SignFinal(&ctx,(unsigned char *)buf_out,
+                        (unsigned int *)&outl,pkey))
+                {
+                outl=0;
+                ASN1err(ASN1_F_ASN1_SIGN,ERR_R_EVP_LIB);
+                goto err;
+                }
+        if (signature->data != NULL) OPENSSL_free(signature->data);
+        signature->data=buf_out;
+        buf_out=NULL;
+        signature->length=outl;
+        /* In the interests of compatibility, I'll make sure that
+         * the bit string has a 'not-used bits' value of 0
+         */
+        signature->flags&= ~(ASN1_STRING_FLAG_BITS_LEFT|0x07);
+        signature->flags|=ASN1_STRING_FLAG_BITS_LEFT;
+err:
+        EVP_MD_CTX_cleanup(&ctx);
+        if (buf_in != NULL)
+                { memset((char *)buf_in,0,(unsigned int)inl); OPENSSL_free(buf_in); }
+        if (buf_out != NULL)
+                { memset((char *)buf_out,0,outll); OPENSSL_free(buf_out); }
+        return(outl);
+        }
+
+#endif
+
+int ASN1_item_sign(const ASN1_ITEM *it, X509_ALGOR *algor1, X509_ALGOR *algor2,
+             ASN1_BIT_STRING *signature, void *asn, EVP_PKEY *pkey,
+             const EVP_MD *type)
+        {
+        EVP_MD_CTX ctx;
+        unsigned char *buf_in=NULL,*buf_out=NULL;
+        int i,inl=0,outl=0,outll=0;
+        X509_ALGOR *a;
+
+        EVP_MD_CTX_init(&ctx);
+        for (i=0; i<2; i++)
+                {
+                if (i == 0)
+                        a=algor1;
+                else
+                        a=algor2;
+                if (a == NULL) continue;
+                if (type->pkey_type == NID_dsaWithSHA1)
+                        {
+                        /* special case: RFC 2459 tells us to omit 'parameters'
+                         * with id-dsa-with-sha1 */
+                        ASN1_TYPE_free(a->parameter);
+                        a->parameter = NULL;
+                        }
+                else if ((a->parameter == NULL) || 
+                        (a->parameter->type != V_ASN1_NULL))
+                        {
+                        ASN1_TYPE_free(a->parameter);
+                        if ((a->parameter=ASN1_TYPE_new()) == NULL) goto err;
+                        a->parameter->type=V_ASN1_NULL;
+                        }
+                ASN1_OBJECT_free(a->algorithm);
+                a->algorithm=OBJ_nid2obj(type->pkey_type);
+                if (a->algorithm == NULL)
+                        {
+                        ASN1err(ASN1_F_ASN1_SIGN,ASN1_R_UNKNOWN_OBJECT_TYPE);
+                        goto err;
+                        }
+                if (a->algorithm->length == 0)
+                        {
+                        ASN1err(ASN1_F_ASN1_SIGN,ASN1_R_THE_ASN1_OBJECT_IDENTIFIER_IS_NOT_KNOWN_FOR_THIS_MD);
+                        goto err;
+                        }
+                }
+        inl=ASN1_item_i2d(asn,&buf_in, it);
+        outll=outl=EVP_PKEY_size(pkey);
+        buf_out=(unsigned char *)OPENSSL_malloc((unsigned int)outl);
+        if ((buf_in == NULL) || (buf_out == NULL))
+                {
+                outl=0;
+                ASN1err(ASN1_F_ASN1_SIGN,ERR_R_MALLOC_FAILURE);
+                goto err;
+                }
+
+        EVP_SignInit_ex(&ctx,type, NULL);
         EVP_SignUpdate(&ctx,(unsigned char *)buf_in,inl);
         if (!EVP_SignFinal(&ctx,(unsigned char *)buf_out,
                         (unsigned int *)&outl,pkey))
@@ -139,7 +285,7 @@ int ASN1_sign(int (*i2d)(), X509_ALGOR *algor1, X509_ALGOR *algor2,
         signature->flags&= ~(ASN1_STRING_FLAG_BITS_LEFT|0x07);
         signature->flags|=ASN1_STRING_FLAG_BITS_LEFT;
 err:
-        memset(&ctx,0,sizeof(ctx));
+        EVP_MD_CTX_cleanup(&ctx);
         if (buf_in != NULL)
                 { memset((char *)buf_in,0,(unsigned int)inl); OPENSSL_free(buf_in); }
         if (buf_out != NULL)