/* 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 #include #include #include "internal.h" typedef struct { union { double align; DES_key_schedule ks; } ks; } EVP_DES_KEY; static int des_init_key(EVP_CIPHER_CTX *ctx, const uint8_t *key, const uint8_t *iv, int enc) { DES_cblock *deskey = (DES_cblock *)key; EVP_DES_KEY *dat = (EVP_DES_KEY *)ctx->cipher_data; DES_set_key(deskey, &dat->ks.ks); return 1; } static int des_cbc_cipher(EVP_CIPHER_CTX *ctx, uint8_t *out, const uint8_t *in, size_t in_len) { EVP_DES_KEY *dat = (EVP_DES_KEY *)ctx->cipher_data; DES_ncbc_encrypt(in, out, in_len, &dat->ks.ks, (DES_cblock *)ctx->iv, ctx->encrypt); return 1; } static const EVP_CIPHER des_cbc = { NID_des_cbc, 8 /* block_size */, 8 /* key_size */, 8 /* iv_len */, sizeof(EVP_DES_KEY), EVP_CIPH_CBC_MODE, NULL /* app_data */, des_init_key, des_cbc_cipher, NULL /* cleanup */, NULL /* ctrl */, }; const EVP_CIPHER *EVP_des_cbc(void) { return &des_cbc; } static int des_ecb_cipher(EVP_CIPHER_CTX *ctx, uint8_t *out, const uint8_t *in, size_t in_len) { if (in_len < ctx->cipher->block_size) { return 1; } in_len -= ctx->cipher->block_size; EVP_DES_KEY *dat = (EVP_DES_KEY *) ctx->cipher_data; size_t i; for (i = 0; i <= in_len; i += ctx->cipher->block_size) { DES_ecb_encrypt((DES_cblock *) (in + i), (DES_cblock *) (out + i), &dat->ks.ks, ctx->encrypt); } return 1; } static const EVP_CIPHER des_ecb = { NID_des_ecb, 8 /* block_size */, 8 /* key_size */, 0 /* iv_len */, sizeof(EVP_DES_KEY), EVP_CIPH_ECB_MODE, NULL /* app_data */, des_init_key, des_ecb_cipher, NULL /* cleanup */, NULL /* ctrl */, }; const EVP_CIPHER *EVP_des_ecb(void) { return &des_ecb; } typedef struct { union { double align; DES_key_schedule ks[3]; } ks; } DES_EDE_KEY; static int des_ede3_init_key(EVP_CIPHER_CTX *ctx, const uint8_t *key, const uint8_t *iv, int enc) { DES_cblock *deskey = (DES_cblock *)key; DES_EDE_KEY *dat = (DES_EDE_KEY*) ctx->cipher_data; DES_set_key(&deskey[0], &dat->ks.ks[0]); DES_set_key(&deskey[1], &dat->ks.ks[1]); DES_set_key(&deskey[2], &dat->ks.ks[2]); return 1; } static int des_ede3_cbc_cipher(EVP_CIPHER_CTX *ctx, uint8_t *out, const uint8_t *in, size_t in_len) { DES_EDE_KEY *dat = (DES_EDE_KEY*) ctx->cipher_data; DES_ede3_cbc_encrypt(in, out, in_len, &dat->ks.ks[0], &dat->ks.ks[1], &dat->ks.ks[2], (DES_cblock *)ctx->iv, ctx->encrypt); return 1; } static const EVP_CIPHER des3_cbc = { NID_des_ede3_cbc, 8 /* block_size */, 24 /* key_size */, 8 /* iv_len */, sizeof(DES_EDE_KEY), EVP_CIPH_CBC_MODE, NULL /* app_data */, des_ede3_init_key, des_ede3_cbc_cipher, NULL /* cleanup */, NULL /* ctrl */, }; const EVP_CIPHER *EVP_des_ede3_cbc(void) { return &des3_cbc; }