1 /* evp_locl.h */ 2 /* Written by Dr Stephen N Henson (steve (at) openssl.org) for the OpenSSL 3 * project 2000. 4 */ 5 /* ==================================================================== 6 * Copyright (c) 1999 The OpenSSL Project. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in 17 * the documentation and/or other materials provided with the 18 * distribution. 19 * 20 * 3. All advertising materials mentioning features or use of this 21 * software must display the following acknowledgment: 22 * "This product includes software developed by the OpenSSL Project 23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 24 * 25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 26 * endorse or promote products derived from this software without 27 * prior written permission. For written permission, please contact 28 * licensing (at) OpenSSL.org. 29 * 30 * 5. Products derived from this software may not be called "OpenSSL" 31 * nor may "OpenSSL" appear in their names without prior written 32 * permission of the OpenSSL Project. 33 * 34 * 6. Redistributions of any form whatsoever must retain the following 35 * acknowledgment: 36 * "This product includes software developed by the OpenSSL Project 37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 38 * 39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 50 * OF THE POSSIBILITY OF SUCH DAMAGE. 51 * ==================================================================== 52 * 53 * This product includes cryptographic software written by Eric Young 54 * (eay (at) cryptsoft.com). This product includes software written by Tim 55 * Hudson (tjh (at) cryptsoft.com). 56 * 57 */ 58 59 /* Macros to code block cipher wrappers */ 60 61 /* Wrapper functions for each cipher mode */ 62 63 #define BLOCK_CIPHER_ecb_loop() \ 64 unsigned int i, bl; \ 65 bl = ctx->cipher->block_size;\ 66 if(inl < bl) return 1;\ 67 inl -= bl; \ 68 for(i=0; i <= inl; i+=bl) 69 70 #define BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \ 71 static int cname##_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int inl) \ 72 {\ 73 BLOCK_CIPHER_ecb_loop() \ 74 cprefix##_ecb_encrypt(in + i, out + i, &((kstruct *)ctx->cipher_data)->ksched, ctx->encrypt);\ 75 return 1;\ 76 } 77 78 #define BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched) \ 79 static int cname##_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int inl) \ 80 {\ 81 cprefix##_ofb##cbits##_encrypt(in, out, (long)inl, &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, &ctx->num);\ 82 return 1;\ 83 } 84 85 #define BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \ 86 static int cname##_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int inl) \ 87 {\ 88 cprefix##_cbc_encrypt(in, out, (long)inl, &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, ctx->encrypt);\ 89 return 1;\ 90 } 91 92 #define BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched) \ 93 static int cname##_cfb##cbits##_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int inl) \ 94 {\ 95 cprefix##_cfb##cbits##_encrypt(in, out, (long)((cbits==1) && !(ctx->flags & EVP_CIPH_FLAG_LENGTH_BITS) ?inl*8:inl), &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, &ctx->num, ctx->encrypt);\ 96 return 1;\ 97 } 98 99 #define BLOCK_CIPHER_all_funcs(cname, cprefix, cbits, kstruct, ksched) \ 100 BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \ 101 BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched) \ 102 BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \ 103 BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched) 104 105 #define BLOCK_CIPHER_def1(cname, nmode, mode, MODE, kstruct, nid, block_size, \ 106 key_len, iv_len, flags, init_key, cleanup, \ 107 set_asn1, get_asn1, ctrl) \ 108 static const EVP_CIPHER cname##_##mode = { \ 109 nid##_##nmode, block_size, key_len, iv_len, \ 110 flags | EVP_CIPH_##MODE##_MODE, \ 111 init_key, \ 112 cname##_##mode##_cipher, \ 113 cleanup, \ 114 sizeof(kstruct), \ 115 set_asn1, get_asn1,\ 116 ctrl, \ 117 NULL \ 118 }; \ 119 const EVP_CIPHER *EVP_##cname##_##mode(void) { return &cname##_##mode; } 120 121 #define BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, \ 122 iv_len, flags, init_key, cleanup, set_asn1, \ 123 get_asn1, ctrl) \ 124 BLOCK_CIPHER_def1(cname, cbc, cbc, CBC, kstruct, nid, block_size, key_len, \ 125 iv_len, flags, init_key, cleanup, set_asn1, get_asn1, ctrl) 126 127 #define BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, \ 128 iv_len, cbits, flags, init_key, cleanup, \ 129 set_asn1, get_asn1, ctrl) \ 130 BLOCK_CIPHER_def1(cname, cfb##cbits, cfb##cbits, CFB, kstruct, nid, \ 131 (cbits + 7)/8, key_len, iv_len, \ 132 flags, init_key, cleanup, set_asn1, get_asn1, ctrl) 133 134 #define BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, \ 135 iv_len, cbits, flags, init_key, cleanup, \ 136 set_asn1, get_asn1, ctrl) \ 137 BLOCK_CIPHER_def1(cname, ofb##cbits, ofb, OFB, kstruct, nid, 1, \ 138 key_len, iv_len, flags, init_key, cleanup, set_asn1, \ 139 get_asn1, ctrl) 140 141 #define BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, \ 142 flags, init_key, cleanup, set_asn1, \ 143 get_asn1, ctrl) \ 144 BLOCK_CIPHER_def1(cname, ecb, ecb, ECB, kstruct, nid, block_size, key_len, \ 145 0, flags, init_key, cleanup, set_asn1, get_asn1, ctrl) 146 147 #define BLOCK_CIPHER_defs(cname, kstruct, \ 148 nid, block_size, key_len, iv_len, cbits, flags, \ 149 init_key, cleanup, set_asn1, get_asn1, ctrl) \ 150 BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, iv_len, flags, \ 151 init_key, cleanup, set_asn1, get_asn1, ctrl) \ 152 BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, iv_len, cbits, \ 153 flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \ 154 BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, iv_len, cbits, \ 155 flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \ 156 BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, flags, \ 157 init_key, cleanup, set_asn1, get_asn1, ctrl) 158 159 160 /* 161 #define BLOCK_CIPHER_defs(cname, kstruct, \ 162 nid, block_size, key_len, iv_len, flags,\ 163 init_key, cleanup, set_asn1, get_asn1, ctrl)\ 164 static const EVP_CIPHER cname##_cbc = {\ 165 nid##_cbc, block_size, key_len, iv_len, \ 166 flags | EVP_CIPH_CBC_MODE,\ 167 init_key,\ 168 cname##_cbc_cipher,\ 169 cleanup,\ 170 sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\ 171 sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\ 172 set_asn1, get_asn1,\ 173 ctrl, \ 174 NULL \ 175 };\ 176 const EVP_CIPHER *EVP_##cname##_cbc(void) { return &cname##_cbc; }\ 177 static const EVP_CIPHER cname##_cfb = {\ 178 nid##_cfb64, 1, key_len, iv_len, \ 179 flags | EVP_CIPH_CFB_MODE,\ 180 init_key,\ 181 cname##_cfb_cipher,\ 182 cleanup,\ 183 sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\ 184 sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\ 185 set_asn1, get_asn1,\ 186 ctrl,\ 187 NULL \ 188 };\ 189 const EVP_CIPHER *EVP_##cname##_cfb(void) { return &cname##_cfb; }\ 190 static const EVP_CIPHER cname##_ofb = {\ 191 nid##_ofb64, 1, key_len, iv_len, \ 192 flags | EVP_CIPH_OFB_MODE,\ 193 init_key,\ 194 cname##_ofb_cipher,\ 195 cleanup,\ 196 sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\ 197 sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\ 198 set_asn1, get_asn1,\ 199 ctrl,\ 200 NULL \ 201 };\ 202 const EVP_CIPHER *EVP_##cname##_ofb(void) { return &cname##_ofb; }\ 203 static const EVP_CIPHER cname##_ecb = {\ 204 nid##_ecb, block_size, key_len, iv_len, \ 205 flags | EVP_CIPH_ECB_MODE,\ 206 init_key,\ 207 cname##_ecb_cipher,\ 208 cleanup,\ 209 sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\ 210 sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\ 211 set_asn1, get_asn1,\ 212 ctrl,\ 213 NULL \ 214 };\ 215 const EVP_CIPHER *EVP_##cname##_ecb(void) { return &cname##_ecb; } 216 */ 217 218 #define IMPLEMENT_BLOCK_CIPHER(cname, ksched, cprefix, kstruct, nid, \ 219 block_size, key_len, iv_len, cbits, \ 220 flags, init_key, \ 221 cleanup, set_asn1, get_asn1, ctrl) \ 222 BLOCK_CIPHER_all_funcs(cname, cprefix, cbits, kstruct, ksched) \ 223 BLOCK_CIPHER_defs(cname, kstruct, nid, block_size, key_len, iv_len, \ 224 cbits, flags, init_key, cleanup, set_asn1, \ 225 get_asn1, ctrl) 226 227 #define EVP_C_DATA(kstruct, ctx) ((kstruct *)(ctx)->cipher_data) 228 229 #define IMPLEMENT_CFBR(cipher,cprefix,kstruct,ksched,keysize,cbits,iv_len,fl) \ 230 BLOCK_CIPHER_func_cfb(cipher##_##keysize,cprefix,cbits,kstruct,ksched) \ 231 BLOCK_CIPHER_def_cfb(cipher##_##keysize,kstruct, \ 232 NID_##cipher##_##keysize, keysize/8, iv_len, cbits, \ 233 (fl)|EVP_CIPH_FLAG_DEFAULT_ASN1, \ 234 cipher##_init_key, NULL, NULL, NULL, NULL) 235 236 #ifdef OPENSSL_FIPS 237 #define RC2_set_key private_RC2_set_key 238 #define RC4_set_key private_RC4_set_key 239 #define CAST_set_key private_CAST_set_key 240 #define RC5_32_set_key private_RC5_32_set_key 241 #define BF_set_key private_BF_set_key 242 #define Camellia_set_key private_Camellia_set_key 243 #define idea_set_encrypt_key private_idea_set_encrypt_key 244 245 #define MD5_Init private_MD5_Init 246 #define MD4_Init private_MD4_Init 247 #define MD2_Init private_MD2_Init 248 #define MDC2_Init private_MDC2_Init 249 #define SHA_Init private_SHA_Init 250 251 #endif 252 253
