3 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
6 /* ====================================================================
7 * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in
18 * the documentation and/or other materials provided with the
21 * 3. All advertising materials mentioning features or use of this
22 * software must display the following acknowledgment:
23 * "This product includes software developed by the OpenSSL Project
24 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27 * endorse or promote products derived from this software without
28 * prior written permission. For written permission, please contact
29 * licensing@OpenSSL.org.
31 * 5. Products derived from this software may not be called "OpenSSL"
32 * nor may "OpenSSL" appear in their names without prior written
33 * permission of the OpenSSL Project.
35 * 6. Redistributions of any form whatsoever must retain the following
37 * "This product includes software developed by the OpenSSL Project
38 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51 * OF THE POSSIBILITY OF SUCH DAMAGE.
52 * ====================================================================
54 * This product includes cryptographic software written by Eric Young
55 * (eay@cryptsoft.com). This product includes software written by Tim
56 * Hudson (tjh@cryptsoft.com).
60 /* Macros to code block cipher wrappers */
62 /* Wrapper functions for each cipher mode */
64 #define BLOCK_CIPHER_ecb_loop() \
66 bl = ctx->cipher->block_size;\
67 if(inl < bl) return 1;\
69 for(i=0; i <= inl; i+=bl)
71 #define BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \
72 static int cname##_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int inl) \
74 BLOCK_CIPHER_ecb_loop() \
75 cprefix##_ecb_encrypt(in + i, out + i, &((kstruct *)ctx->cipher_data)->ksched, ctx->encrypt);\
79 #define BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched) \
80 static int cname##_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int inl) \
82 cprefix##_ofb##cbits##_encrypt(in, out, (long)inl, &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, &ctx->num);\
86 #define BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \
87 static int cname##_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int inl) \
89 cprefix##_cbc_encrypt(in, out, (long)inl, &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, ctx->encrypt);\
93 #define BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched) \
94 static int cname##_cfb##cbits##_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int inl) \
96 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);\
100 #define BLOCK_CIPHER_all_funcs(cname, cprefix, cbits, kstruct, ksched) \
101 BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \
102 BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched) \
103 BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \
104 BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched)
106 #define BLOCK_CIPHER_def1(cname, nmode, mode, MODE, kstruct, nid, block_size, \
107 key_len, iv_len, flags, init_key, cleanup, \
108 set_asn1, get_asn1, ctrl) \
109 static const EVP_CIPHER cname##_##mode = { \
110 nid##_##nmode, block_size, key_len, iv_len, \
111 flags | EVP_CIPH_##MODE##_MODE, \
113 cname##_##mode##_cipher, \
120 const EVP_CIPHER *EVP_##cname##_##mode(void) { return &cname##_##mode; }
122 #define BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, \
123 iv_len, flags, init_key, cleanup, set_asn1, \
125 BLOCK_CIPHER_def1(cname, cbc, cbc, CBC, kstruct, nid, block_size, key_len, \
126 iv_len, flags, init_key, cleanup, set_asn1, get_asn1, ctrl)
128 #define BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, \
129 iv_len, cbits, flags, init_key, cleanup, \
130 set_asn1, get_asn1, ctrl) \
131 BLOCK_CIPHER_def1(cname, cfb##cbits, cfb##cbits, CFB, kstruct, nid, 1, \
132 key_len, iv_len, flags, init_key, cleanup, set_asn1, \
135 #define BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, \
136 iv_len, cbits, flags, init_key, cleanup, \
137 set_asn1, get_asn1, ctrl) \
138 BLOCK_CIPHER_def1(cname, ofb##cbits, ofb, OFB, kstruct, nid, 1, \
139 key_len, iv_len, flags, init_key, cleanup, set_asn1, \
142 #define BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, \
143 flags, init_key, cleanup, set_asn1, \
145 BLOCK_CIPHER_def1(cname, ecb, ecb, ECB, kstruct, nid, block_size, key_len, \
146 0, flags, init_key, cleanup, set_asn1, get_asn1, ctrl)
148 #define BLOCK_CIPHER_defs(cname, kstruct, \
149 nid, block_size, key_len, iv_len, cbits, flags, \
150 init_key, cleanup, set_asn1, get_asn1, ctrl) \
151 BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, iv_len, flags, \
152 init_key, cleanup, set_asn1, get_asn1, ctrl) \
153 BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, iv_len, cbits, \
154 flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \
155 BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, iv_len, cbits, \
156 flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \
157 BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, flags, \
158 init_key, cleanup, set_asn1, get_asn1, ctrl)
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,\
170 sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
171 sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
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,\
183 sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
184 sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
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,\
196 sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
197 sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
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,\
209 sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
210 sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
215 const EVP_CIPHER *EVP_##cname##_ecb(void) { return &cname##_ecb; }
218 #define IMPLEMENT_BLOCK_CIPHER(cname, ksched, cprefix, kstruct, nid, \
219 block_size, key_len, iv_len, cbits, \
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, \
227 #define EVP_C_DATA(kstruct, ctx) ((kstruct *)(ctx)->cipher_data)
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)
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
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