1c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org/* crypto/evp/p_open.c */ 2c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * All rights reserved. 4c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * 5c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * This package is an SSL implementation written 6c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * by Eric Young (eay@cryptsoft.com). 7c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * The implementation was written so as to conform with Netscapes SSL. 8c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * 9c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * This library is free for commercial and non-commercial use as long as 10c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * the following conditions are aheared to. The following conditions 11c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * apply to all code found in this distribution, be it the RC4, RSA, 12c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * included with this distribution is covered by the same copyright terms 14c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * 16c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * Copyright remains Eric Young's, and as such any Copyright notices in 17c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * the code are not to be removed. 18c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * If this package is used in a product, Eric Young should be given attribution 19c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * as the author of the parts of the library used. 20c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * This can be in the form of a textual message at program startup or 21c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * in documentation (online or textual) provided with the package. 22c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * 23c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * Redistribution and use in source and binary forms, with or without 24c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * modification, are permitted provided that the following conditions 25c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * are met: 26c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * 1. Redistributions of source code must retain the copyright 27c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * notice, this list of conditions and the following disclaimer. 28c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * 2. Redistributions in binary form must reproduce the above copyright 29c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * notice, this list of conditions and the following disclaimer in the 30c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * documentation and/or other materials provided with the distribution. 31c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * 3. All advertising materials mentioning features or use of this software 32c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * must display the following acknowledgement: 33c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * "This product includes cryptographic software written by 34c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * Eric Young (eay@cryptsoft.com)" 35c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * The word 'cryptographic' can be left out if the rouines from the library 36c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * being used are not cryptographic related :-). 37c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * 4. If you include any Windows specific code (or a derivative thereof) from 38c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * the apps directory (application code) you must include an acknowledgement: 39c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * 41c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * SUCH DAMAGE. 52c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * 53c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * The licence and distribution terms for any publically available version or 54c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * derivative of this code cannot be changed. i.e. this code cannot simply be 55c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * copied and put under another distribution licence 56c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org * [including the GNU Public Licence.] 57c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org */ 58c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org 59c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org#include <stdio.h> 60c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org#include "cryptlib.h" 61c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org 62c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org#ifndef OPENSSL_NO_RSA 63c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org 64c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org#include <openssl/evp.h> 65c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org#include <openssl/objects.h> 66c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org#include <openssl/x509.h> 67c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org#include <openssl/rsa.h> 68c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org 69c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.orgint EVP_OpenInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type, 70c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org const unsigned char *ek, int ekl, const unsigned char *iv, 71c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org EVP_PKEY *priv) 72c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org { 73c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org unsigned char *key=NULL; 74c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org int i,size=0,ret=0; 75c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org 76c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org if(type) { 77c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org EVP_CIPHER_CTX_init(ctx); 78c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org if(!EVP_DecryptInit_ex(ctx,type,NULL, NULL,NULL)) return 0; 79c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org } 80c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org 81c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org if(!priv) return 1; 82c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org 83c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org if (priv->type != EVP_PKEY_RSA) 84c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org { 85c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org EVPerr(EVP_F_EVP_OPENINIT,EVP_R_PUBLIC_KEY_NOT_RSA); 86c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org goto err; 87c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org } 88c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org 89c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org size=RSA_size(priv->pkey.rsa); 90c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org key=(unsigned char *)OPENSSL_malloc(size+2); 91c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org if (key == NULL) 92c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org { 93c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org /* ERROR */ 94c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org EVPerr(EVP_F_EVP_OPENINIT,ERR_R_MALLOC_FAILURE); 95c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org goto err; 96c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org } 97c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org 98480da75abf485e7e2a6be5acc0f71842368792c0jnd@chromium.org i=EVP_PKEY_decrypt_old(key,ek,ekl,priv); 99c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org if ((i <= 0) || !EVP_CIPHER_CTX_set_key_length(ctx, i)) 100c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org { 101c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org /* ERROR */ 102c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org goto err; 103c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org } 104c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org if(!EVP_DecryptInit_ex(ctx,NULL,NULL,key,iv)) goto err; 105c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org 106c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org ret=1; 107c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.orgerr: 108c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org if (key != NULL) OPENSSL_cleanse(key,size); 109c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org OPENSSL_free(key); 110c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org return(ret); 111c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org } 112c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org 113c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.orgint EVP_OpenFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl) 114c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org { 115c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org int i; 116c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org 117c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org i=EVP_DecryptFinal_ex(ctx,out,outl); 1182c4508dfe2bc5b6296c01114ed11ddc64b7718c6digit@chromium.org if (i) 1192c4508dfe2bc5b6296c01114ed11ddc64b7718c6digit@chromium.org i = EVP_DecryptInit_ex(ctx,NULL,NULL,NULL,NULL); 120c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org return(i); 121c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org } 122c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org#else /* !OPENSSL_NO_RSA */ 123c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org 124c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org# ifdef PEDANTIC 125c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.orgstatic void *dummy=&dummy; 126c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org# endif 127c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org 128c9490d33b98b7affb729b5f1db13cb0a348471aagl@chromium.org#endif 129