+++ /dev/null
-/*
- * Copyright (c) 2000-2001,2011,2014 Apple Inc. All Rights Reserved.
- *
- * The contents of this file constitute Original Code as defined in and are
- * subject to the Apple Public Source License Version 1.2 (the 'License').
- * You may not use this file except in compliance with the License. Please obtain
- * a copy of the License at http://www.apple.com/publicsource and read it before
- * using this file.
- *
- * This Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
- * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT
- * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
- * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the
- * specific language governing rights and limitations under the License.
- */
-
-
-/* crypto/rsa/rsa_sign.c */
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
- *
- * This package is an SSL implementation written
- * by Eric Young (eay@cryptsoft.com).
- * The implementation was written so as to conform with Netscapes SSL.
- *
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to. The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code. The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- *
- * 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 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 acknowledgement:
- * "This product includes cryptographic software written by
- * Eric Young (eay@cryptsoft.com)"
- * The word 'cryptographic' can be left out if the rouines from the library
- * being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
- * the apps directory (application code) you must include an acknowledgement:
- * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
- * ANY EXPRESS 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 AUTHOR OR 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.
- *
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed. i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.]
- */
-
-#include <stdio.h>
-#include "cryptlib.h"
-#include <openssl/bn.h>
-#include <openssl/rsa.h>
-#include <openssl/objects.h>
-#include <openssl/x509.h>
-
-/* Size of an SSL signature: MD5+SHA1 */
-#define SSL_SIG_LENGTH 36
-
-int RSA_sign(int type, unsigned char *m, unsigned int m_len,
- unsigned char *sigret, unsigned int *siglen, RSA *rsa)
- {
- X509_SIG sig;
- ASN1_TYPE parameter;
- int i,j,ret=1;
- unsigned char *p,*s = NULL;
- X509_ALGOR algor;
- ASN1_OCTET_STRING digest;
- if(rsa->flags & RSA_FLAG_SIGN_VER)
- return rsa->meth->rsa_sign(type, m, m_len, sigret, siglen, rsa);
- /* Special case: SSL signature, just check the length */
- if(type == NID_md5_sha1) {
- if(m_len != SSL_SIG_LENGTH) {
- RSAerr(RSA_F_RSA_SIGN,RSA_R_INVALID_MESSAGE_LENGTH);
- return(0);
- }
- i = SSL_SIG_LENGTH;
- s = m;
- } else {
- sig.algor= &algor;
- sig.algor->algorithm=OBJ_nid2obj(type);
- if (sig.algor->algorithm == NULL)
- {
- RSAerr(RSA_F_RSA_SIGN,RSA_R_UNKNOWN_ALGORITHM_TYPE);
- return(0);
- }
- if (sig.algor->algorithm->length == 0)
- {
- RSAerr(RSA_F_RSA_SIGN,RSA_R_THE_ASN1_OBJECT_IDENTIFIER_IS_NOT_KNOWN_FOR_THIS_MD);
- return(0);
- }
- parameter.type=V_ASN1_NULL;
- parameter.value.ptr=NULL;
- sig.algor->parameter= ¶meter;
-
- sig.digest= &digest;
- sig.digest->data=m;
- sig.digest->length=m_len;
-
- i=i2d_X509_SIG(&sig,NULL);
- }
- j=RSA_size(rsa);
- if ((i-RSA_PKCS1_PADDING) > j)
- {
- RSAerr(RSA_F_RSA_SIGN,RSA_R_DIGEST_TOO_BIG_FOR_RSA_KEY);
- return(0);
- }
- if(type != NID_md5_sha1) {
- s=(unsigned char *)Malloc((unsigned int)j+1);
- if (s == NULL)
- {
- RSAerr(RSA_F_RSA_SIGN,ERR_R_MALLOC_FAILURE);
- return(0);
- }
- p=s;
- i2d_X509_SIG(&sig,&p);
- }
- i=RSA_private_encrypt(i,s,sigret,rsa,RSA_PKCS1_PADDING);
- if (i <= 0)
- ret=0;
- else
- *siglen=i;
-
- if(type != NID_md5_sha1) {
- memset(s,0,(unsigned int)j+1);
- Free(s);
- }
- return(ret);
- }
-
-int RSA_verify(int dtype, unsigned char *m, unsigned int m_len,
- unsigned char *sigbuf, unsigned int siglen, RSA *rsa)
- {
- int i,ret=0,sigtype;
- unsigned char *p,*s;
- X509_SIG *sig=NULL;
-
- if (siglen != (unsigned int)RSA_size(rsa))
- {
- RSAerr(RSA_F_RSA_VERIFY,RSA_R_WRONG_SIGNATURE_LENGTH);
- return(0);
- }
-
- if(rsa->flags & RSA_FLAG_SIGN_VER)
- return rsa->meth->rsa_verify(dtype, m, m_len, sigbuf, siglen, rsa);
-
- s=(unsigned char *)Malloc((unsigned int)siglen);
- if (s == NULL)
- {
- RSAerr(RSA_F_RSA_VERIFY,ERR_R_MALLOC_FAILURE);
- goto err;
- }
- if((dtype == NID_md5_sha1) && (m_len != SSL_SIG_LENGTH) ) {
- RSAerr(RSA_F_RSA_VERIFY,RSA_R_INVALID_MESSAGE_LENGTH);
- return(0);
- }
- i=RSA_public_decrypt((int)siglen,sigbuf,s,rsa,RSA_PKCS1_PADDING);
-
- if (i <= 0) goto err;
-
- /* Special case: SSL signature */
- if(dtype == NID_md5_sha1) {
- if((i != SSL_SIG_LENGTH) || memcmp(s, m, SSL_SIG_LENGTH))
- RSAerr(RSA_F_RSA_VERIFY,RSA_R_BAD_SIGNATURE);
- else ret = 1;
- } else {
- p=s;
- sig=d2i_X509_SIG(NULL,&p,(long)i);
-
- if (sig == NULL) goto err;
- sigtype=OBJ_obj2nid(sig->algor->algorithm);
-
-
- #ifdef RSA_DEBUG
- /* put a backward compatibility flag in EAY */
- fprintf(stderr,"in(%s) expect(%s)\n",OBJ_nid2ln(sigtype),
- OBJ_nid2ln(dtype));
- #endif
- if (sigtype != dtype)
- {
- if (((dtype == NID_md5) &&
- (sigtype == NID_md5WithRSAEncryption)) ||
- ((dtype == NID_md2) &&
- (sigtype == NID_md2WithRSAEncryption)))
- {
- /* ok, we will let it through */
- #if !defined(NO_STDIO) && !defined(WIN16)
- fprintf(stderr,"signature has problems, re-make with post SSLeay045\n");
- #endif
- }
- else
- {
- RSAerr(RSA_F_RSA_VERIFY,
- RSA_R_ALGORITHM_MISMATCH);
- goto err;
- }
- }
- if ( ((unsigned int)sig->digest->length != m_len) ||
- (memcmp(m,sig->digest->data,m_len) != 0))
- {
- RSAerr(RSA_F_RSA_VERIFY,RSA_R_BAD_SIGNATURE);
- }
- else
- ret=1;
- }
-err:
- if (sig != NULL) X509_SIG_free(sig);
- memset(s,0,(unsigned int)siglen);
- Free(s);
- return(ret);
- }
-
projects / apple / security.git / blobdiff