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| 1 /* crypto/evp/e_des3.c */ | |
| 2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) | |
| 3 * All rights reserved. | |
| 4 * | |
| 5 * This package is an SSL implementation written | |
| 6 * by Eric Young (eay@cryptsoft.com). | |
| 7 * The implementation was written so as to conform with Netscapes SSL. | |
| 8 * | |
| 9 * This library is free for commercial and non-commercial use as long as | |
| 10 * the following conditions are aheared to. The following conditions | |
| 11 * apply to all code found in this distribution, be it the RC4, RSA, | |
| 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation | |
| 13 * included with this distribution is covered by the same copyright terms | |
| 14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). | |
| 15 * | |
| 16 * Copyright remains Eric Young's, and as such any Copyright notices in | |
| 17 * the code are not to be removed. | |
| 18 * If this package is used in a product, Eric Young should be given attribution | |
| 19 * as the author of the parts of the library used. | |
| 20 * This can be in the form of a textual message at program startup or | |
| 21 * in documentation (online or textual) provided with the package. | |
| 22 * | |
| 23 * Redistribution and use in source and binary forms, with or without | |
| 24 * modification, are permitted provided that the following conditions | |
| 25 * are met: | |
| 26 * 1. Redistributions of source code must retain the copyright | |
| 27 * notice, this list of conditions and the following disclaimer. | |
| 28 * 2. Redistributions in binary form must reproduce the above copyright | |
| 29 * notice, this list of conditions and the following disclaimer in the | |
| 30 * documentation and/or other materials provided with the distribution. | |
| 31 * 3. All advertising materials mentioning features or use of this software | |
| 32 * must display the following acknowledgement: | |
| 33 * "This product includes cryptographic software written by | |
| 34 * Eric Young (eay@cryptsoft.com)" | |
| 35 * The word 'cryptographic' can be left out if the rouines from the library | |
| 36 * being used are not cryptographic related :-). | |
| 37 * 4. If you include any Windows specific code (or a derivative thereof) from | |
| 38 * the apps directory (application code) you must include an acknowledgement: | |
| 39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | |
| 40 * | |
| 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND | |
| 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
| 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 51 * SUCH DAMAGE. | |
| 52 * | |
| 53 * The licence and distribution terms for any publically available version or | |
| 54 * derivative of this code cannot be changed. i.e. this code cannot simply be | |
| 55 * copied and put under another distribution licence | |
| 56 * [including the GNU Public Licence.] | |
| 57 */ | |
| 58 | |
| 59 #include <stdio.h> | |
| 60 #include "cryptlib.h" | |
| 61 #ifndef OPENSSL_NO_DES | |
| 62 #include <openssl/evp.h> | |
| 63 #include <openssl/objects.h> | |
| 64 #include "evp_locl.h" | |
| 65 #include <openssl/des.h> | |
| 66 #include <openssl/rand.h> | |
| 67 | |
| 68 #ifndef OPENSSL_FIPS | |
| 69 | |
| 70 static int des_ede_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, | |
| 71 const unsigned char *iv,int enc); | |
| 72 | |
| 73 static int des_ede3_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, | |
| 74 const unsigned char *iv,int enc); | |
| 75 | |
| 76 static int des3_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr); | |
| 77 | |
| 78 typedef struct | |
| 79 { | |
| 80 DES_key_schedule ks1;/* key schedule */ | |
| 81 DES_key_schedule ks2;/* key schedule (for ede) */ | |
| 82 DES_key_schedule ks3;/* key schedule (for ede3) */ | |
| 83 } DES_EDE_KEY; | |
| 84 | |
| 85 #define data(ctx) ((DES_EDE_KEY *)(ctx)->cipher_data) | |
| 86 | |
| 87 /* Because of various casts and different args can't use IMPLEMENT_BLOCK_CIPHER
*/ | |
| 88 | |
| 89 static int des_ede_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, | |
| 90 const unsigned char *in, size_t inl) | |
| 91 { | |
| 92 BLOCK_CIPHER_ecb_loop() | |
| 93 DES_ecb3_encrypt((const_DES_cblock *)(in + i), | |
| 94 (DES_cblock *)(out + i), | |
| 95 &data(ctx)->ks1, &data(ctx)->ks2, | |
| 96 &data(ctx)->ks3, | |
| 97 ctx->encrypt); | |
| 98 return 1; | |
| 99 } | |
| 100 | |
| 101 static int des_ede_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, | |
| 102 const unsigned char *in, size_t inl) | |
| 103 { | |
| 104 if (inl>=EVP_MAXCHUNK) | |
| 105 { | |
| 106 DES_ede3_ofb64_encrypt(in, out, (long)EVP_MAXCHUNK, | |
| 107 &data(ctx)->ks1, &data(ctx)->ks2, &data(ctx)->ks3
, | |
| 108 (DES_cblock *)ctx->iv, &ctx->num); | |
| 109 inl-=EVP_MAXCHUNK; | |
| 110 in +=EVP_MAXCHUNK; | |
| 111 out+=EVP_MAXCHUNK; | |
| 112 } | |
| 113 if (inl) | |
| 114 DES_ede3_ofb64_encrypt(in, out, (long)inl, | |
| 115 &data(ctx)->ks1, &data(ctx)->ks2, &data(ctx)->ks
3, | |
| 116 (DES_cblock *)ctx->iv, &ctx->num); | |
| 117 | |
| 118 return 1; | |
| 119 } | |
| 120 | |
| 121 static int des_ede_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, | |
| 122 const unsigned char *in, size_t inl) | |
| 123 { | |
| 124 #ifdef KSSL_DEBUG | |
| 125 { | |
| 126 int i; | |
| 127 char *cp; | |
| 128 printf("des_ede_cbc_cipher(ctx=%lx, buflen=%d)\n", ctx, ctx->buf_len); | |
| 129 printf("\t iv= "); | |
| 130 for(i=0;i<8;i++) | |
| 131 printf("%02X",ctx->iv[i]); | |
| 132 printf("\n"); | |
| 133 } | |
| 134 #endif /* KSSL_DEBUG */ | |
| 135 if (inl>=EVP_MAXCHUNK) | |
| 136 { | |
| 137 DES_ede3_cbc_encrypt(in, out, (long)EVP_MAXCHUNK, | |
| 138 &data(ctx)->ks1, &data(ctx)->ks2, &data(ctx)->ks3, | |
| 139 (DES_cblock *)ctx->iv, ctx->encrypt); | |
| 140 inl-=EVP_MAXCHUNK; | |
| 141 in +=EVP_MAXCHUNK; | |
| 142 out+=EVP_MAXCHUNK; | |
| 143 } | |
| 144 if (inl) | |
| 145 DES_ede3_cbc_encrypt(in, out, (long)inl, | |
| 146 &data(ctx)->ks1, &data(ctx)->ks2, &data(ctx)->ks3, | |
| 147 (DES_cblock *)ctx->iv, ctx->encrypt); | |
| 148 return 1; | |
| 149 } | |
| 150 | |
| 151 static int des_ede_cfb64_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, | |
| 152 const unsigned char *in, size_t inl) | |
| 153 { | |
| 154 if (inl>=EVP_MAXCHUNK) | |
| 155 { | |
| 156 DES_ede3_cfb64_encrypt(in, out, (long)EVP_MAXCHUNK, | |
| 157 &data(ctx)->ks1, &data(ctx)->ks2, &data(ctx)->ks3
, | |
| 158 (DES_cblock *)ctx->iv, &ctx->num, ctx->encrypt); | |
| 159 inl-=EVP_MAXCHUNK; | |
| 160 in +=EVP_MAXCHUNK; | |
| 161 out+=EVP_MAXCHUNK; | |
| 162 } | |
| 163 if (inl) | |
| 164 DES_ede3_cfb64_encrypt(in, out, (long)inl, | |
| 165 &data(ctx)->ks1, &data(ctx)->ks2, &data(ctx)->ks3
, | |
| 166 (DES_cblock *)ctx->iv, &ctx->num, ctx->encrypt); | |
| 167 return 1; | |
| 168 } | |
| 169 | |
| 170 /* Although we have a CFB-r implementation for 3-DES, it doesn't pack the right | |
| 171 way, so wrap it here */ | |
| 172 static int des_ede3_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, | |
| 173 const unsigned char *in, size_t inl) | |
| 174 { | |
| 175 size_t n; | |
| 176 unsigned char c[1],d[1]; | |
| 177 | |
| 178 for(n=0 ; n < inl ; ++n) | |
| 179 { | |
| 180 c[0]=(in[n/8]&(1 << (7-n%8))) ? 0x80 : 0; | |
| 181 DES_ede3_cfb_encrypt(c,d,1,1, | |
| 182 &data(ctx)->ks1,&data(ctx)->ks2,&data(ctx)->ks3, | |
| 183 (DES_cblock *)ctx->iv,ctx->encrypt); | |
| 184 out[n/8]=(out[n/8]&~(0x80 >> (unsigned int)(n%8))) | | |
| 185 ((d[0]&0x80) >> (unsigned int)(n%8)); | |
| 186 } | |
| 187 | |
| 188 return 1; | |
| 189 } | |
| 190 | |
| 191 static int des_ede3_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, | |
| 192 const unsigned char *in, size_t inl) | |
| 193 { | |
| 194 while (inl>=EVP_MAXCHUNK) | |
| 195 { | |
| 196 DES_ede3_cfb_encrypt(in,out,8,(long)EVP_MAXCHUNK, | |
| 197 &data(ctx)->ks1,&data(ctx)->ks2,&data(ctx)->ks3, | |
| 198 (DES_cblock *)ctx->iv,ctx->encrypt); | |
| 199 inl-=EVP_MAXCHUNK; | |
| 200 in +=EVP_MAXCHUNK; | |
| 201 out+=EVP_MAXCHUNK; | |
| 202 } | |
| 203 if (inl) | |
| 204 DES_ede3_cfb_encrypt(in,out,8,(long)inl, | |
| 205 &data(ctx)->ks1,&data(ctx)->ks2,&data(ctx)->ks3, | |
| 206 (DES_cblock *)ctx->iv,ctx->encrypt); | |
| 207 return 1; | |
| 208 } | |
| 209 | |
| 210 BLOCK_CIPHER_defs(des_ede, DES_EDE_KEY, NID_des_ede, 8, 16, 8, 64, | |
| 211 EVP_CIPH_RAND_KEY, des_ede_init_key, NULL, | |
| 212 EVP_CIPHER_set_asn1_iv, | |
| 213 EVP_CIPHER_get_asn1_iv, | |
| 214 des3_ctrl) | |
| 215 | |
| 216 #define des_ede3_cfb64_cipher des_ede_cfb64_cipher | |
| 217 #define des_ede3_ofb_cipher des_ede_ofb_cipher | |
| 218 #define des_ede3_cbc_cipher des_ede_cbc_cipher | |
| 219 #define des_ede3_ecb_cipher des_ede_ecb_cipher | |
| 220 | |
| 221 BLOCK_CIPHER_defs(des_ede3, DES_EDE_KEY, NID_des_ede3, 8, 24, 8, 64, | |
| 222 EVP_CIPH_RAND_KEY, des_ede3_init_key, NULL, | |
| 223 EVP_CIPHER_set_asn1_iv, | |
| 224 EVP_CIPHER_get_asn1_iv, | |
| 225 des3_ctrl) | |
| 226 | |
| 227 BLOCK_CIPHER_def_cfb(des_ede3,DES_EDE_KEY,NID_des_ede3,24,8,1, | |
| 228 EVP_CIPH_RAND_KEY, des_ede3_init_key,NULL, | |
| 229 EVP_CIPHER_set_asn1_iv, | |
| 230 EVP_CIPHER_get_asn1_iv, | |
| 231 des3_ctrl) | |
| 232 | |
| 233 BLOCK_CIPHER_def_cfb(des_ede3,DES_EDE_KEY,NID_des_ede3,24,8,8, | |
| 234 EVP_CIPH_RAND_KEY, des_ede3_init_key,NULL, | |
| 235 EVP_CIPHER_set_asn1_iv, | |
| 236 EVP_CIPHER_get_asn1_iv, | |
| 237 des3_ctrl) | |
| 238 | |
| 239 static int des_ede_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, | |
| 240 const unsigned char *iv, int enc) | |
| 241 { | |
| 242 DES_cblock *deskey = (DES_cblock *)key; | |
| 243 #ifdef EVP_CHECK_DES_KEY | |
| 244 if (DES_set_key_checked(&deskey[0],&data(ctx)->ks1) | |
| 245 !! DES_set_key_checked(&deskey[1],&data(ctx)->ks2)) | |
| 246 return 0; | |
| 247 #else | |
| 248 DES_set_key_unchecked(&deskey[0],&data(ctx)->ks1); | |
| 249 DES_set_key_unchecked(&deskey[1],&data(ctx)->ks2); | |
| 250 #endif | |
| 251 memcpy(&data(ctx)->ks3,&data(ctx)->ks1, | |
| 252 sizeof(data(ctx)->ks1)); | |
| 253 return 1; | |
| 254 } | |
| 255 | |
| 256 static int des_ede3_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, | |
| 257 const unsigned char *iv, int enc) | |
| 258 { | |
| 259 DES_cblock *deskey = (DES_cblock *)key; | |
| 260 #ifdef KSSL_DEBUG | |
| 261 { | |
| 262 int i; | |
| 263 printf("des_ede3_init_key(ctx=%lx)\n", ctx); | |
| 264 printf("\tKEY= "); | |
| 265 for(i=0;i<24;i++) printf("%02X",key[i]); printf("\n"); | |
| 266 printf("\t IV= "); | |
| 267 for(i=0;i<8;i++) printf("%02X",iv[i]); printf("\n"); | |
| 268 } | |
| 269 #endif /* KSSL_DEBUG */ | |
| 270 | |
| 271 #ifdef EVP_CHECK_DES_KEY | |
| 272 if (DES_set_key_checked(&deskey[0],&data(ctx)->ks1) | |
| 273 || DES_set_key_checked(&deskey[1],&data(ctx)->ks2) | |
| 274 || DES_set_key_checked(&deskey[2],&data(ctx)->ks3)) | |
| 275 return 0; | |
| 276 #else | |
| 277 DES_set_key_unchecked(&deskey[0],&data(ctx)->ks1); | |
| 278 DES_set_key_unchecked(&deskey[1],&data(ctx)->ks2); | |
| 279 DES_set_key_unchecked(&deskey[2],&data(ctx)->ks3); | |
| 280 #endif | |
| 281 return 1; | |
| 282 } | |
| 283 | |
| 284 static int des3_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr) | |
| 285 { | |
| 286 | |
| 287 DES_cblock *deskey = ptr; | |
| 288 | |
| 289 switch(type) | |
| 290 { | |
| 291 case EVP_CTRL_RAND_KEY: | |
| 292 if (RAND_bytes(ptr, c->key_len) <= 0) | |
| 293 return 0; | |
| 294 DES_set_odd_parity(deskey); | |
| 295 if (c->key_len >= 16) | |
| 296 DES_set_odd_parity(deskey + 1); | |
| 297 if (c->key_len >= 24) | |
| 298 DES_set_odd_parity(deskey + 2); | |
| 299 return 1; | |
| 300 | |
| 301 default: | |
| 302 return -1; | |
| 303 } | |
| 304 } | |
| 305 | |
| 306 const EVP_CIPHER *EVP_des_ede(void) | |
| 307 { | |
| 308 return &des_ede_ecb; | |
| 309 } | |
| 310 | |
| 311 const EVP_CIPHER *EVP_des_ede3(void) | |
| 312 { | |
| 313 return &des_ede3_ecb; | |
| 314 } | |
| 315 #endif | |
| 316 #endif | |
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Chromium Code Reviews
Issue 2072073002:
Delete bundled copy of OpenSSL and replace with README. (Closed)
Base URL: https://chromium.googlesource.com/chromium/deps/openssl@master