/* crypto/asn1/a_sign.c */
-/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
+/* ====================================================================
+ * Copyright (c) 1998-2003 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>
-#include <sys/types.h>
-#include <sys/stat.h>
#include "cryptlib.h"
-#include "bn.h"
-#include "evp.h"
-#include "x509.h"
-#include "objects.h"
-#include "buffer.h"
-#include "pem.h"
-int ASN1_sign(i2d,algor1,algor2,signature,data,pkey,type)
-int (*i2d)();
-X509_ALGOR *algor1;
-X509_ALGOR *algor2;
-ASN1_BIT_STRING *signature;
-char *data;
-EVP_PKEY *pkey;
-EVP_MD *type;
+#ifndef NO_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+
+#include <openssl/bn.h>
+#include <openssl/evp.h>
+#include <openssl/x509.h>
+#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)
{
EVP_MD_CTX ctx;
unsigned char *p,*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)
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);
}
}
inl=i2d(data,NULL);
- buf_in=(unsigned char *)Malloc((unsigned int)inl);
+ buf_in=(unsigned char *)OPENSSL_malloc((unsigned int)inl);
outll=outl=EVP_PKEY_size(pkey);
- buf_out=(unsigned char *)Malloc((unsigned int)outl);
+ buf_out=(unsigned char *)OPENSSL_malloc((unsigned int)outl);
if ((buf_in == NULL) || (buf_out == NULL))
{
outl=0;
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))
ASN1err(ASN1_F_ASN1_SIGN,ERR_R_EVP_LIB);
goto err;
}
- if (signature->data != NULL) Free((char *)signature->data);
+ 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)
+ { OPENSSL_cleanse((char *)buf_in,(unsigned int)inl); OPENSSL_free(buf_in); }
+ if (buf_out != NULL)
+ { OPENSSL_cleanse((char *)buf_out,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 ||
+ type->pkey_type == NID_ecdsa_with_SHA1)
+ {
+ /* special case: RFC 3279 tells us to omit 'parameters'
+ * with id-dsa-with-sha1 and ecdsa-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))
+ {
+ 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:
- memset(&ctx,0,sizeof(ctx));
+ EVP_MD_CTX_cleanup(&ctx);
if (buf_in != NULL)
- { memset((char *)buf_in,0,(unsigned int)inl); Free((char *)buf_in); }
+ { OPENSSL_cleanse((char *)buf_in,(unsigned int)inl); OPENSSL_free(buf_in); }
if (buf_out != NULL)
- { memset((char *)buf_out,0,outll); Free((char *)buf_out); }
+ { OPENSSL_cleanse((char *)buf_out,outll); OPENSSL_free(buf_out); }
return(outl);
}
projects / openssl.git / blobdiff