1*0Sstevel@tonic-gate /* crypto/evp/p_verify.c */ 2*0Sstevel@tonic-gate /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3*0Sstevel@tonic-gate * All rights reserved. 4*0Sstevel@tonic-gate * 5*0Sstevel@tonic-gate * This package is an SSL implementation written 6*0Sstevel@tonic-gate * by Eric Young (eay@cryptsoft.com). 7*0Sstevel@tonic-gate * The implementation was written so as to conform with Netscapes SSL. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * This library is free for commercial and non-commercial use as long as 10*0Sstevel@tonic-gate * the following conditions are aheared to. The following conditions 11*0Sstevel@tonic-gate * apply to all code found in this distribution, be it the RC4, RSA, 12*0Sstevel@tonic-gate * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13*0Sstevel@tonic-gate * included with this distribution is covered by the same copyright terms 14*0Sstevel@tonic-gate * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15*0Sstevel@tonic-gate * 16*0Sstevel@tonic-gate * Copyright remains Eric Young's, and as such any Copyright notices in 17*0Sstevel@tonic-gate * the code are not to be removed. 18*0Sstevel@tonic-gate * If this package is used in a product, Eric Young should be given attribution 19*0Sstevel@tonic-gate * as the author of the parts of the library used. 20*0Sstevel@tonic-gate * This can be in the form of a textual message at program startup or 21*0Sstevel@tonic-gate * in documentation (online or textual) provided with the package. 22*0Sstevel@tonic-gate * 23*0Sstevel@tonic-gate * Redistribution and use in source and binary forms, with or without 24*0Sstevel@tonic-gate * modification, are permitted provided that the following conditions 25*0Sstevel@tonic-gate * are met: 26*0Sstevel@tonic-gate * 1. Redistributions of source code must retain the copyright 27*0Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer. 28*0Sstevel@tonic-gate * 2. Redistributions in binary form must reproduce the above copyright 29*0Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer in the 30*0Sstevel@tonic-gate * documentation and/or other materials provided with the distribution. 31*0Sstevel@tonic-gate * 3. All advertising materials mentioning features or use of this software 32*0Sstevel@tonic-gate * must display the following acknowledgement: 33*0Sstevel@tonic-gate * "This product includes cryptographic software written by 34*0Sstevel@tonic-gate * Eric Young (eay@cryptsoft.com)" 35*0Sstevel@tonic-gate * The word 'cryptographic' can be left out if the rouines from the library 36*0Sstevel@tonic-gate * being used are not cryptographic related :-). 37*0Sstevel@tonic-gate * 4. If you include any Windows specific code (or a derivative thereof) from 38*0Sstevel@tonic-gate * the apps directory (application code) you must include an acknowledgement: 39*0Sstevel@tonic-gate * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40*0Sstevel@tonic-gate * 41*0Sstevel@tonic-gate * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42*0Sstevel@tonic-gate * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43*0Sstevel@tonic-gate * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44*0Sstevel@tonic-gate * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45*0Sstevel@tonic-gate * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46*0Sstevel@tonic-gate * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47*0Sstevel@tonic-gate * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48*0Sstevel@tonic-gate * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49*0Sstevel@tonic-gate * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50*0Sstevel@tonic-gate * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51*0Sstevel@tonic-gate * SUCH DAMAGE. 52*0Sstevel@tonic-gate * 53*0Sstevel@tonic-gate * The licence and distribution terms for any publically available version or 54*0Sstevel@tonic-gate * derivative of this code cannot be changed. i.e. this code cannot simply be 55*0Sstevel@tonic-gate * copied and put under another distribution licence 56*0Sstevel@tonic-gate * [including the GNU Public Licence.] 57*0Sstevel@tonic-gate */ 58*0Sstevel@tonic-gate 59*0Sstevel@tonic-gate #include <stdio.h> 60*0Sstevel@tonic-gate #include "cryptlib.h" 61*0Sstevel@tonic-gate #include <openssl/evp.h> 62*0Sstevel@tonic-gate #include <openssl/objects.h> 63*0Sstevel@tonic-gate #include <openssl/x509.h> 64*0Sstevel@tonic-gate 65*0Sstevel@tonic-gate int EVP_VerifyFinal(EVP_MD_CTX *ctx, unsigned char *sigbuf, 66*0Sstevel@tonic-gate unsigned int siglen, EVP_PKEY *pkey) 67*0Sstevel@tonic-gate { 68*0Sstevel@tonic-gate unsigned char m[EVP_MAX_MD_SIZE]; 69*0Sstevel@tonic-gate unsigned int m_len; 70*0Sstevel@tonic-gate int i,ok=0,v; 71*0Sstevel@tonic-gate MS_STATIC EVP_MD_CTX tmp_ctx; 72*0Sstevel@tonic-gate 73*0Sstevel@tonic-gate for (i=0; i<4; i++) 74*0Sstevel@tonic-gate { 75*0Sstevel@tonic-gate v=ctx->digest->required_pkey_type[i]; 76*0Sstevel@tonic-gate if (v == 0) break; 77*0Sstevel@tonic-gate if (pkey->type == v) 78*0Sstevel@tonic-gate { 79*0Sstevel@tonic-gate ok=1; 80*0Sstevel@tonic-gate break; 81*0Sstevel@tonic-gate } 82*0Sstevel@tonic-gate } 83*0Sstevel@tonic-gate if (!ok) 84*0Sstevel@tonic-gate { 85*0Sstevel@tonic-gate EVPerr(EVP_F_EVP_VERIFYFINAL,EVP_R_WRONG_PUBLIC_KEY_TYPE); 86*0Sstevel@tonic-gate return(-1); 87*0Sstevel@tonic-gate } 88*0Sstevel@tonic-gate EVP_MD_CTX_init(&tmp_ctx); 89*0Sstevel@tonic-gate EVP_MD_CTX_copy_ex(&tmp_ctx,ctx); 90*0Sstevel@tonic-gate EVP_DigestFinal_ex(&tmp_ctx,&(m[0]),&m_len); 91*0Sstevel@tonic-gate EVP_MD_CTX_cleanup(&tmp_ctx); 92*0Sstevel@tonic-gate if (ctx->digest->verify == NULL) 93*0Sstevel@tonic-gate { 94*0Sstevel@tonic-gate EVPerr(EVP_F_EVP_VERIFYFINAL,EVP_R_NO_VERIFY_FUNCTION_CONFIGURED); 95*0Sstevel@tonic-gate return(0); 96*0Sstevel@tonic-gate } 97*0Sstevel@tonic-gate 98*0Sstevel@tonic-gate return(ctx->digest->verify(ctx->digest->type,m,m_len, 99*0Sstevel@tonic-gate sigbuf,siglen,pkey->pkey.ptr)); 100*0Sstevel@tonic-gate } 101*0Sstevel@tonic-gate 102