/* * Copyright (c) 2000-2001 Apple Computer, 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_saos.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> int RSA_sign_ASN1_OCTET_STRING(int type, unsigned char *m, unsigned int m_len, unsigned char *sigret, unsigned int *siglen, RSA *rsa) { ASN1_OCTET_STRING sig; int i,j,ret=1; unsigned char *p,*s; sig.type=V_ASN1_OCTET_STRING; sig.length=m_len; sig.data=m; i=i2d_ASN1_OCTET_STRING(&sig,NULL); j=RSA_size(rsa); if ((i-RSA_PKCS1_PADDING) > j) { RSAerr(RSA_F_RSA_SIGN_ASN1_OCTET_STRING,RSA_R_DIGEST_TOO_BIG_FOR_RSA_KEY); return(0); } s=(unsigned char *)Malloc((unsigned int)j+1); if (s == NULL) { RSAerr(RSA_F_RSA_SIGN_ASN1_OCTET_STRING,ERR_R_MALLOC_FAILURE); return(0); } p=s; i2d_ASN1_OCTET_STRING(&sig,&p); i=RSA_private_encrypt(i,s,sigret,rsa,RSA_PKCS1_PADDING); if (i <= 0) ret=0; else *siglen=i; memset(s,0,(unsigned int)j+1); Free(s); return(ret); } int RSA_verify_ASN1_OCTET_STRING(int dtype, unsigned char *m, unsigned int m_len, unsigned char *sigbuf, unsigned int siglen, RSA *rsa) { int i,ret=0; unsigned char *p,*s; ASN1_OCTET_STRING *sig=NULL; if (siglen != (unsigned int)RSA_size(rsa)) { RSAerr(RSA_F_RSA_VERIFY_ASN1_OCTET_STRING,RSA_R_WRONG_SIGNATURE_LENGTH); return(0); } s=(unsigned char *)Malloc((unsigned int)siglen); if (s == NULL) { RSAerr(RSA_F_RSA_VERIFY_ASN1_OCTET_STRING,ERR_R_MALLOC_FAILURE); goto err; } i=RSA_public_decrypt((int)siglen,sigbuf,s,rsa,RSA_PKCS1_PADDING); if (i <= 0) goto err; p=s; sig=d2i_ASN1_OCTET_STRING(NULL,&p,(long)i); if (sig == NULL) goto err; if ( ((unsigned int)sig->length != m_len) || (memcmp(m,sig->data,m_len) != 0)) { RSAerr(RSA_F_RSA_VERIFY_ASN1_OCTET_STRING,RSA_R_BAD_SIGNATURE); } else ret=1; err: if (sig != NULL) M_ASN1_OCTET_STRING_free(sig); memset(s,0,(unsigned int)siglen); Free(s); return(ret); }