Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
| 2 | * All rights reserved. |
| 3 | * |
| 4 | * This package is an SSL implementation written |
| 5 | * by Eric Young (eay@cryptsoft.com). |
| 6 | * The implementation was written so as to conform with Netscapes SSL. |
| 7 | * |
| 8 | * This library is free for commercial and non-commercial use as long as |
| 9 | * the following conditions are aheared to. The following conditions |
| 10 | * apply to all code found in this distribution, be it the RC4, RSA, |
| 11 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation |
| 12 | * included with this distribution is covered by the same copyright terms |
| 13 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). |
| 14 | * |
| 15 | * Copyright remains Eric Young's, and as such any Copyright notices in |
| 16 | * the code are not to be removed. |
| 17 | * If this package is used in a product, Eric Young should be given attribution |
| 18 | * as the author of the parts of the library used. |
| 19 | * This can be in the form of a textual message at program startup or |
| 20 | * in documentation (online or textual) provided with the package. |
| 21 | * |
| 22 | * Redistribution and use in source and binary forms, with or without |
| 23 | * modification, are permitted provided that the following conditions |
| 24 | * are met: |
| 25 | * 1. Redistributions of source code must retain the copyright |
| 26 | * notice, this list of conditions and the following disclaimer. |
| 27 | * 2. Redistributions in binary form must reproduce the above copyright |
| 28 | * notice, this list of conditions and the following disclaimer in the |
| 29 | * documentation and/or other materials provided with the distribution. |
| 30 | * 3. All advertising materials mentioning features or use of this software |
| 31 | * must display the following acknowledgement: |
| 32 | * "This product includes cryptographic software written by |
| 33 | * Eric Young (eay@cryptsoft.com)" |
| 34 | * The word 'cryptographic' can be left out if the rouines from the library |
| 35 | * being used are not cryptographic related :-). |
| 36 | * 4. If you include any Windows specific code (or a derivative thereof) from |
| 37 | * the apps directory (application code) you must include an acknowledgement: |
| 38 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" |
| 39 | * |
| 40 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
| 41 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 42 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 43 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| 44 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 45 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 46 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 47 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 48 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 49 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 50 | * SUCH DAMAGE. |
| 51 | * |
| 52 | * The licence and distribution terms for any publically available version or |
| 53 | * derivative of this code cannot be changed. i.e. this code cannot simply be |
| 54 | * copied and put under another distribution licence |
| 55 | * [including the GNU Public Licence.] */ |
| 56 | |
| 57 | #include <openssl/cipher.h> |
| 58 | #include <openssl/des.h> |
David Benjamin | 4969cc9 | 2016-04-22 15:02:23 -0400 | [diff] [blame] | 59 | #include <openssl/nid.h> |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 60 | |
| 61 | #include "internal.h" |
Robert Sloan | 8ff0355 | 2017-06-14 12:40:58 -0700 | [diff] [blame^] | 62 | #include "../delocate.h" |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 63 | |
| 64 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 65 | typedef struct { |
| 66 | union { |
| 67 | double align; |
| 68 | DES_key_schedule ks; |
| 69 | } ks; |
| 70 | } EVP_DES_KEY; |
| 71 | |
| 72 | static int des_init_key(EVP_CIPHER_CTX *ctx, const uint8_t *key, |
| 73 | const uint8_t *iv, int enc) { |
| 74 | DES_cblock *deskey = (DES_cblock *)key; |
| 75 | EVP_DES_KEY *dat = (EVP_DES_KEY *)ctx->cipher_data; |
| 76 | |
| 77 | DES_set_key(deskey, &dat->ks.ks); |
| 78 | return 1; |
| 79 | } |
| 80 | |
| 81 | static int des_cbc_cipher(EVP_CIPHER_CTX *ctx, uint8_t *out, const uint8_t *in, |
| 82 | size_t in_len) { |
| 83 | EVP_DES_KEY *dat = (EVP_DES_KEY *)ctx->cipher_data; |
| 84 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 85 | DES_ncbc_encrypt(in, out, in_len, &dat->ks.ks, (DES_cblock *)ctx->iv, |
| 86 | ctx->encrypt); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 87 | |
| 88 | return 1; |
| 89 | } |
| 90 | |
Robert Sloan | 8ff0355 | 2017-06-14 12:40:58 -0700 | [diff] [blame^] | 91 | DEFINE_METHOD_FUNCTION(EVP_CIPHER, EVP_des_cbc) { |
| 92 | memset(out, 0, sizeof(EVP_CIPHER)); |
| 93 | out->nid = NID_des_cbc; |
| 94 | out->block_size = 8; |
| 95 | out->key_len = 8; |
| 96 | out->iv_len = 8; |
| 97 | out->ctx_size = sizeof(EVP_DES_KEY); |
| 98 | out->flags = EVP_CIPH_CBC_MODE; |
| 99 | out->init = des_init_key; |
| 100 | out->cipher = des_cbc_cipher; |
| 101 | } |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 102 | |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 103 | static int des_ecb_cipher(EVP_CIPHER_CTX *ctx, uint8_t *out, const uint8_t *in, |
| 104 | size_t in_len) { |
| 105 | if (in_len < ctx->cipher->block_size) { |
| 106 | return 1; |
| 107 | } |
| 108 | in_len -= ctx->cipher->block_size; |
| 109 | |
| 110 | EVP_DES_KEY *dat = (EVP_DES_KEY *) ctx->cipher_data; |
David Benjamin | 7c0d06c | 2016-08-11 13:26:41 -0400 | [diff] [blame] | 111 | for (size_t i = 0; i <= in_len; i += ctx->cipher->block_size) { |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 112 | DES_ecb_encrypt((DES_cblock *) (in + i), (DES_cblock *) (out + i), |
| 113 | &dat->ks.ks, ctx->encrypt); |
| 114 | } |
| 115 | return 1; |
| 116 | } |
| 117 | |
Robert Sloan | 8ff0355 | 2017-06-14 12:40:58 -0700 | [diff] [blame^] | 118 | DEFINE_METHOD_FUNCTION(EVP_CIPHER, EVP_des_ecb) { |
| 119 | memset(out, 0, sizeof(EVP_CIPHER)); |
| 120 | out->nid = NID_des_ecb; |
| 121 | out->block_size = 8; |
| 122 | out->key_len = 8; |
| 123 | out->iv_len = 0; |
| 124 | out->ctx_size = sizeof(EVP_DES_KEY); |
| 125 | out->flags = EVP_CIPH_ECB_MODE; |
| 126 | out->init = des_init_key; |
| 127 | out->cipher = des_ecb_cipher; |
| 128 | } |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 129 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 130 | typedef struct { |
| 131 | union { |
| 132 | double align; |
| 133 | DES_key_schedule ks[3]; |
| 134 | } ks; |
| 135 | } DES_EDE_KEY; |
| 136 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 137 | static int des_ede3_init_key(EVP_CIPHER_CTX *ctx, const uint8_t *key, |
| 138 | const uint8_t *iv, int enc) { |
| 139 | DES_cblock *deskey = (DES_cblock *)key; |
| 140 | DES_EDE_KEY *dat = (DES_EDE_KEY*) ctx->cipher_data; |
| 141 | |
| 142 | DES_set_key(&deskey[0], &dat->ks.ks[0]); |
| 143 | DES_set_key(&deskey[1], &dat->ks.ks[1]); |
| 144 | DES_set_key(&deskey[2], &dat->ks.ks[2]); |
| 145 | |
| 146 | return 1; |
| 147 | } |
| 148 | |
| 149 | static int des_ede3_cbc_cipher(EVP_CIPHER_CTX *ctx, uint8_t *out, |
| 150 | const uint8_t *in, size_t in_len) { |
| 151 | DES_EDE_KEY *dat = (DES_EDE_KEY*) ctx->cipher_data; |
| 152 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 153 | DES_ede3_cbc_encrypt(in, out, in_len, &dat->ks.ks[0], &dat->ks.ks[1], |
| 154 | &dat->ks.ks[2], (DES_cblock *)ctx->iv, ctx->encrypt); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 155 | |
| 156 | return 1; |
| 157 | } |
| 158 | |
Robert Sloan | 8ff0355 | 2017-06-14 12:40:58 -0700 | [diff] [blame^] | 159 | DEFINE_METHOD_FUNCTION(EVP_CIPHER, EVP_des_ede3_cbc) { |
| 160 | memset(out, 0, sizeof(EVP_CIPHER)); |
| 161 | out->nid = NID_des_ede3_cbc; |
| 162 | out->block_size = 8; |
| 163 | out->key_len = 24; |
| 164 | out->iv_len = 8; |
| 165 | out->ctx_size = sizeof(DES_EDE_KEY); |
| 166 | out->flags = EVP_CIPH_CBC_MODE; |
| 167 | out->init = des_ede3_init_key; |
| 168 | out->cipher = des_ede3_cbc_cipher; |
| 169 | } |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 170 | |
| 171 | static int des_ede_init_key(EVP_CIPHER_CTX *ctx, const uint8_t *key, |
| 172 | const uint8_t *iv, int enc) { |
| 173 | DES_cblock *deskey = (DES_cblock *) key; |
| 174 | DES_EDE_KEY *dat = (DES_EDE_KEY *) ctx->cipher_data; |
| 175 | |
| 176 | DES_set_key(&deskey[0], &dat->ks.ks[0]); |
| 177 | DES_set_key(&deskey[1], &dat->ks.ks[1]); |
| 178 | DES_set_key(&deskey[0], &dat->ks.ks[2]); |
| 179 | |
| 180 | return 1; |
| 181 | } |
| 182 | |
Robert Sloan | 8ff0355 | 2017-06-14 12:40:58 -0700 | [diff] [blame^] | 183 | DEFINE_METHOD_FUNCTION(EVP_CIPHER, EVP_des_ede_cbc) { |
| 184 | memset(out, 0, sizeof(EVP_CIPHER)); |
| 185 | out->nid = NID_des_ede_cbc; |
| 186 | out->block_size = 8; |
| 187 | out->key_len = 16; |
| 188 | out->iv_len = 8; |
| 189 | out->ctx_size = sizeof(DES_EDE_KEY); |
| 190 | out->flags = EVP_CIPH_CBC_MODE; |
| 191 | out->init = des_ede_init_key; |
| 192 | out->cipher = des_ede3_cbc_cipher; |
| 193 | } |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 194 | |
| 195 | static int des_ede_ecb_cipher(EVP_CIPHER_CTX *ctx, uint8_t *out, |
| 196 | const uint8_t *in, size_t in_len) { |
| 197 | if (in_len < ctx->cipher->block_size) { |
| 198 | return 1; |
| 199 | } |
| 200 | in_len -= ctx->cipher->block_size; |
| 201 | |
| 202 | DES_EDE_KEY *dat = (DES_EDE_KEY *) ctx->cipher_data; |
David Benjamin | 7c0d06c | 2016-08-11 13:26:41 -0400 | [diff] [blame] | 203 | for (size_t i = 0; i <= in_len; i += ctx->cipher->block_size) { |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 204 | DES_ecb3_encrypt((DES_cblock *) (in + i), (DES_cblock *) (out + i), |
| 205 | &dat->ks.ks[0], &dat->ks.ks[1], &dat->ks.ks[2], |
| 206 | ctx->encrypt); |
| 207 | } |
| 208 | return 1; |
| 209 | } |
| 210 | |
Robert Sloan | 8ff0355 | 2017-06-14 12:40:58 -0700 | [diff] [blame^] | 211 | DEFINE_METHOD_FUNCTION(EVP_CIPHER, EVP_des_ede) { |
| 212 | memset(out, 0, sizeof(EVP_CIPHER)); |
| 213 | out->nid = NID_des_ede_ecb; |
| 214 | out->block_size = 8; |
| 215 | out->key_len = 16; |
| 216 | out->iv_len = 0; |
| 217 | out->ctx_size = sizeof(DES_EDE_KEY); |
| 218 | out->flags = EVP_CIPH_ECB_MODE; |
| 219 | out->init = des_ede_init_key; |
| 220 | out->cipher = des_ede_ecb_cipher; |
| 221 | } |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 222 | |
Robert Sloan | 8ff0355 | 2017-06-14 12:40:58 -0700 | [diff] [blame^] | 223 | DEFINE_METHOD_FUNCTION(EVP_CIPHER, EVP_des_ede3) { |
| 224 | memset(out, 0, sizeof(EVP_CIPHER)); |
| 225 | out->nid = NID_des_ede3_ecb; |
| 226 | out->block_size = 8; |
| 227 | out->key_len = 24; |
| 228 | out->iv_len = 0; |
| 229 | out->ctx_size = sizeof(DES_EDE_KEY); |
| 230 | out->flags = EVP_CIPH_ECB_MODE; |
| 231 | out->init = des_ede3_init_key; |
| 232 | out->cipher = des_ede_ecb_cipher; |
| 233 | } |