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1/* evp_locl.h */
2/* Written by Dr Stephen N Henson (shenson@bigfoot.com) 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@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@cryptsoft.com). This product includes software written by Tim
55 * Hudson (tjh@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) \
71static 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) \
79static 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) \
86static 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) \
93static 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)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) \
108static 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}; \
119const 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) \
124BLOCK_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) \
130BLOCK_CIPHER_def1(cname, cfb##cbits, cfb##cbits, CFB, kstruct, nid, 1, \
131 key_len, iv_len, flags, init_key, cleanup, set_asn1, \
132 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) \
137BLOCK_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 iv_len, flags, init_key, cleanup, set_asn1, \
143 get_asn1, ctrl) \
144BLOCK_CIPHER_def1(cname, ecb, ecb, ECB, kstruct, nid, block_size, key_len, \
145 iv_len, 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) \
150BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, iv_len, flags, \
151 init_key, cleanup, set_asn1, get_asn1, ctrl) \
152BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, iv_len, cbits, \
153 flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \
154BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, iv_len, cbits, \
155 flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \
156BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, iv_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)\
164static 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};\
176const EVP_CIPHER *EVP_##cname##_cbc(void) { return &cname##_cbc; }\
177static 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};\
189const EVP_CIPHER *EVP_##cname##_cfb(void) { return &cname##_cfb; }\
190static 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};\
202const EVP_CIPHER *EVP_##cname##_ofb(void) { return &cname##_ofb; }\
203static 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};\
215const 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,flags) \
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 flags, cipher##_init_key, NULL, \
234 EVP_CIPHER_set_asn1_iv, \
235 EVP_CIPHER_get_asn1_iv, \
236 NULL)
237
238#ifdef OPENSSL_FIPS
239#define RC2_set_key private_RC2_set_key
240#define RC4_set_key private_RC4_set_key
241#define CAST_set_key private_CAST_set_key
242#define RC5_32_set_key private_RC5_32_set_key
243#define BF_set_key private_BF_set_key
244#define idea_set_encrypt_key private_idea_set_encrypt_key
245
246#define MD5_Init private_MD5_Init
247#define MD4_Init private_MD4_Init
248#define MD2_Init private_MD2_Init
249#define MDC2_Init private_MDC2_Init
250#define SHA_Init private_SHA_Init
251
252#endif
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