1*0Sstevel@tonic-gate /* crypto/evp/e_des.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 #ifndef OPENSSL_NO_DES 60*0Sstevel@tonic-gate #include <stdio.h> 61*0Sstevel@tonic-gate #include "cryptlib.h" 62*0Sstevel@tonic-gate #include <openssl/evp.h> 63*0Sstevel@tonic-gate #include <openssl/objects.h> 64*0Sstevel@tonic-gate #include "evp_locl.h" 65*0Sstevel@tonic-gate #include <openssl/des.h> 66*0Sstevel@tonic-gate 67*0Sstevel@tonic-gate static int des_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, 68*0Sstevel@tonic-gate const unsigned char *iv, int enc); 69*0Sstevel@tonic-gate 70*0Sstevel@tonic-gate /* Because of various casts and different names can't use IMPLEMENT_BLOCK_CIPHER */ 71*0Sstevel@tonic-gate 72*0Sstevel@tonic-gate static int des_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, 73*0Sstevel@tonic-gate const unsigned char *in, unsigned int inl) 74*0Sstevel@tonic-gate { 75*0Sstevel@tonic-gate BLOCK_CIPHER_ecb_loop() 76*0Sstevel@tonic-gate DES_ecb_encrypt((DES_cblock *)(in + i), (DES_cblock *)(out + i), ctx->cipher_data, ctx->encrypt); 77*0Sstevel@tonic-gate return 1; 78*0Sstevel@tonic-gate } 79*0Sstevel@tonic-gate 80*0Sstevel@tonic-gate static int des_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, 81*0Sstevel@tonic-gate const unsigned char *in, unsigned int inl) 82*0Sstevel@tonic-gate { 83*0Sstevel@tonic-gate DES_ofb64_encrypt(in, out, (long)inl, ctx->cipher_data, (DES_cblock *)ctx->iv, &ctx->num); 84*0Sstevel@tonic-gate return 1; 85*0Sstevel@tonic-gate } 86*0Sstevel@tonic-gate 87*0Sstevel@tonic-gate static int des_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, 88*0Sstevel@tonic-gate const unsigned char *in, unsigned int inl) 89*0Sstevel@tonic-gate { 90*0Sstevel@tonic-gate DES_ncbc_encrypt(in, out, (long)inl, ctx->cipher_data, 91*0Sstevel@tonic-gate (DES_cblock *)ctx->iv, ctx->encrypt); 92*0Sstevel@tonic-gate return 1; 93*0Sstevel@tonic-gate } 94*0Sstevel@tonic-gate 95*0Sstevel@tonic-gate static int des_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, 96*0Sstevel@tonic-gate const unsigned char *in, unsigned int inl) 97*0Sstevel@tonic-gate { 98*0Sstevel@tonic-gate DES_cfb64_encrypt(in, out, (long)inl, ctx->cipher_data, 99*0Sstevel@tonic-gate (DES_cblock *)ctx->iv, &ctx->num, ctx->encrypt); 100*0Sstevel@tonic-gate return 1; 101*0Sstevel@tonic-gate } 102*0Sstevel@tonic-gate 103*0Sstevel@tonic-gate BLOCK_CIPHER_defs(des, DES_key_schedule, NID_des, 8, 8, 8, 64, 104*0Sstevel@tonic-gate 0, des_init_key, NULL, 105*0Sstevel@tonic-gate EVP_CIPHER_set_asn1_iv, 106*0Sstevel@tonic-gate EVP_CIPHER_get_asn1_iv, 107*0Sstevel@tonic-gate NULL) 108*0Sstevel@tonic-gate 109*0Sstevel@tonic-gate 110*0Sstevel@tonic-gate static int des_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, 111*0Sstevel@tonic-gate const unsigned char *iv, int enc) 112*0Sstevel@tonic-gate { 113*0Sstevel@tonic-gate DES_cblock *deskey = (DES_cblock *)key; 114*0Sstevel@tonic-gate 115*0Sstevel@tonic-gate DES_set_key_unchecked(deskey,ctx->cipher_data); 116*0Sstevel@tonic-gate return 1; 117*0Sstevel@tonic-gate } 118*0Sstevel@tonic-gate 119*0Sstevel@tonic-gate #endif 120