1300548Sadrian/* crypto/evp/p_sign.c */ 2300548Sadrian/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3300548Sadrian * All rights reserved. 4300548Sadrian * 5300548Sadrian * This package is an SSL implementation written 6300548Sadrian * by Eric Young (eay@cryptsoft.com). 7300548Sadrian * The implementation was written so as to conform with Netscapes SSL. 8300548Sadrian * 9300548Sadrian * This library is free for commercial and non-commercial use as long as 10300548Sadrian * the following conditions are aheared to. The following conditions 11300548Sadrian * apply to all code found in this distribution, be it the RC4, RSA, 12300548Sadrian * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13300548Sadrian * included with this distribution is covered by the same copyright terms 14300548Sadrian * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15300548Sadrian * 16300548Sadrian * Copyright remains Eric Young's, and as such any Copyright notices in 17300548Sadrian * the code are not to be removed. 18300548Sadrian * If this package is used in a product, Eric Young should be given attribution 19300548Sadrian * as the author of the parts of the library used. 20300548Sadrian * This can be in the form of a textual message at program startup or 21300548Sadrian * in documentation (online or textual) provided with the package. 22300548Sadrian * 23300548Sadrian * Redistribution and use in source and binary forms, with or without 24300548Sadrian * modification, are permitted provided that the following conditions 25300548Sadrian * are met: 26300548Sadrian * 1. Redistributions of source code must retain the copyright 27300548Sadrian * notice, this list of conditions and the following disclaimer. 28300548Sadrian * 2. Redistributions in binary form must reproduce the above copyright 29300548Sadrian * notice, this list of conditions and the following disclaimer in the 30300548Sadrian * documentation and/or other materials provided with the distribution. 31300548Sadrian * 3. All advertising materials mentioning features or use of this software 32300548Sadrian * must display the following acknowledgement: 33300548Sadrian * "This product includes cryptographic software written by 34300548Sadrian * Eric Young (eay@cryptsoft.com)" 35300548Sadrian * The word 'cryptographic' can be left out if the rouines from the library 36300548Sadrian * being used are not cryptographic related :-). 37300548Sadrian * 4. If you include any Windows specific code (or a derivative thereof) from 38300548Sadrian * the apps directory (application code) you must include an acknowledgement: 39300548Sadrian * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40300548Sadrian * 41300548Sadrian * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42300548Sadrian * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43300548Sadrian * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44300548Sadrian * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45300548Sadrian * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46300548Sadrian * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47300548Sadrian * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48300548Sadrian * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49300548Sadrian * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50300548Sadrian * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51300702Sadrian * SUCH DAMAGE. 52300702Sadrian * 53300702Sadrian * The licence and distribution terms for any publically available version or 54300702Sadrian * derivative of this code cannot be changed. i.e. this code cannot simply be 55300702Sadrian * copied and put under another distribution licence 56300702Sadrian * [including the GNU Public Licence.] 57300702Sadrian */ 58300702Sadrian 59300702Sadrian#include <stdio.h> 60300702Sadrian#include "cryptlib.h" 61300702Sadrian#include <openssl/evp.h> 62300702Sadrian#include <openssl/objects.h> 63300702Sadrian#include <openssl/x509.h> 64300702Sadrian 65300702Sadrian#ifdef undef 66300548Sadrianvoid EVP_SignInit(EVP_MD_CTX *ctx, EVP_MD *type) 67300548Sadrian{ 68300548Sadrian EVP_DigestInit_ex(ctx, type); 69300548Sadrian} 70300548Sadrian 71300548Sadrianvoid EVP_SignUpdate(EVP_MD_CTX *ctx, unsigned char *data, unsigned int count) 72300548Sadrian{ 73300548Sadrian EVP_DigestUpdate(ctx, data, count); 74300548Sadrian} 75300548Sadrian#endif 76300548Sadrian 77300548Sadrianint EVP_SignFinal(EVP_MD_CTX *ctx, unsigned char *sigret, 78300548Sadrian unsigned int *siglen, EVP_PKEY *pkey) 79300548Sadrian{ 80300548Sadrian unsigned char m[EVP_MAX_MD_SIZE]; 81300548Sadrian unsigned int m_len; 82300548Sadrian int i, ok = 0, v; 83300548Sadrian EVP_MD_CTX tmp_ctx; 84300548Sadrian 85300548Sadrian *siglen = 0; 86300548Sadrian for (i = 0; i < 4; i++) { 87300548Sadrian v = ctx->digest->required_pkey_type[i]; 88300548Sadrian if (v == 0) 89300548Sadrian break; 90300548Sadrian if (pkey->type == v) { 91300548Sadrian ok = 1; 92300548Sadrian break; 93300548Sadrian } 94300548Sadrian } 95300548Sadrian if (!ok) { 96300548Sadrian EVPerr(EVP_F_EVP_SIGNFINAL, EVP_R_WRONG_PUBLIC_KEY_TYPE); 97300548Sadrian return (0); 98300548Sadrian } 99300548Sadrian if (ctx->digest->sign == NULL) { 100300548Sadrian EVPerr(EVP_F_EVP_SIGNFINAL, EVP_R_NO_SIGN_FUNCTION_CONFIGURED); 101300548Sadrian return (0); 102300548Sadrian } 103300548Sadrian EVP_MD_CTX_init(&tmp_ctx); 104300702Sadrian EVP_MD_CTX_copy_ex(&tmp_ctx, ctx); 105300548Sadrian if (ctx->digest->flags & EVP_MD_FLAG_SVCTX) { 106300548Sadrian EVP_MD_SVCTX sctmp; 107300548Sadrian sctmp.mctx = &tmp_ctx; 108300548Sadrian sctmp.key = pkey->pkey.ptr; 109300548Sadrian i = ctx->digest->sign(ctx->digest->type, 110300548Sadrian NULL, -1, sigret, siglen, &sctmp); 111300548Sadrian } else { 112300548Sadrian EVP_DigestFinal_ex(&tmp_ctx, &(m[0]), &m_len); 113300548Sadrian i = ctx->digest->sign(ctx->digest->type, m, m_len, sigret, siglen, 114300548Sadrian pkey->pkey.ptr); 115300548Sadrian } 116300548Sadrian EVP_MD_CTX_cleanup(&tmp_ctx); 117 return i; 118} 119