/* crypto/evp/e_des3.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.] */ #ifndef NO_DES #include <stdio.h> #include "cryptlib.h" #include <openssl/evp.h> #include <openssl/objects.h> #include "evp_locl.h" static int des_ede_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, const unsigned char *iv,int enc); static int des_ede3_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, const unsigned char *iv,int enc); /* Because of various casts and different args can't use IMPLEMENT_BLOCK_CIPHER */ static int des_ede_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int inl) { BLOCK_CIPHER_ecb_loop() des_ecb3_encrypt((des_cblock *)(in + i), (des_cblock *)(out + i), ctx->c.des_ede.ks1, ctx->c.des_ede.ks2, ctx->c.des_ede.ks3, ctx->encrypt); return 1; } static int des_ede_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int inl) { des_ede3_ofb64_encrypt(in, out, (long)inl, ctx->c.des_ede.ks1, ctx->c.des_ede.ks2, ctx->c.des_ede.ks3, (des_cblock *)ctx->iv, &ctx->num); return 1; } static int des_ede_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int inl) { des_ede3_cbc_encrypt(in, out, (long)inl, ctx->c.des_ede.ks1, ctx->c.des_ede.ks2, ctx->c.des_ede.ks3, (des_cblock *)ctx->iv, ctx->encrypt); return 1; } static int des_ede_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int inl) { des_ede3_cfb64_encrypt(in, out, (long)inl, ctx->c.des_ede.ks1, ctx->c.des_ede.ks2, ctx->c.des_ede.ks3, (des_cblock *)ctx->iv, &ctx->num, ctx->encrypt); return 1; } #define NID_des_ede_ecb NID_des_ede BLOCK_CIPHER_defs(des_ede, des_ede, NID_des_ede, 8, 16, 8, 0, des_ede_init_key, NULL, EVP_CIPHER_set_asn1_iv, EVP_CIPHER_get_asn1_iv, NULL) #define NID_des_ede3_ecb NID_des_ede3 #define des_ede3_cfb_cipher des_ede_cfb_cipher #define des_ede3_ofb_cipher des_ede_ofb_cipher #define des_ede3_cbc_cipher des_ede_cbc_cipher #define des_ede3_ecb_cipher des_ede_ecb_cipher BLOCK_CIPHER_defs(des_ede3, des_ede, NID_des_ede3, 8, 24, 8, 0, des_ede3_init_key, NULL, EVP_CIPHER_set_asn1_iv, EVP_CIPHER_get_asn1_iv, NULL) static int des_ede_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, const unsigned char *iv, int enc) { des_cblock *deskey = (des_cblock *)key; des_set_key_unchecked(&deskey[0],ctx->c.des_ede.ks1); des_set_key_unchecked(&deskey[1],ctx->c.des_ede.ks2); memcpy( (char *)ctx->c.des_ede.ks3, (char *)ctx->c.des_ede.ks1, sizeof(ctx->c.des_ede.ks1)); return 1; } static int des_ede3_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, const unsigned char *iv, int enc) { des_cblock *deskey = (des_cblock *)key; des_set_key_unchecked(&deskey[0],ctx->c.des_ede.ks1); des_set_key_unchecked(&deskey[1],ctx->c.des_ede.ks2); des_set_key_unchecked(&deskey[2],ctx->c.des_ede.ks3); return 1; } EVP_CIPHER *EVP_des_ede(void) { return &des_ede_ecb; } EVP_CIPHER *EVP_des_ede3(void) { return &des_ede3_ecb; } #endif