evp_locl.h revision 296465 
1/* evp_locl.h */
2/*
3 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
4 * 2000.
5 */
6/* ====================================================================
7 * Copyright (c) 1999 The OpenSSL Project.  All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 *
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
19 *    distribution.
20 *
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/)"
25 *
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.
30 *
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.
34 *
35 * 6. Redistributions of any form whatsoever must retain the following
36 *    acknowledgment:
37 *    "This product includes software developed by the OpenSSL Project
38 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 *
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 * ====================================================================
53 *
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).
57 *
58 */
59
60/* Macros to code block cipher wrappers */
61
62/* Wrapper functions for each cipher mode */
63
64#define BLOCK_CIPHER_ecb_loop() \
65        unsigned int i, bl; \
66        bl = ctx->cipher->block_size;\
67        if(inl < bl) return 1;\
68        inl -= bl; \
69        for(i=0; i <= inl; i+=bl)
70
71#define BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \
72static int cname##_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int inl) \
73{\
74        BLOCK_CIPHER_ecb_loop() \
75                cprefix##_ecb_encrypt(in + i, out + i, &((kstruct *)ctx->cipher_data)->ksched, ctx->encrypt);\
76        return 1;\
77}
78
79#define BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched) \
80static int cname##_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int inl) \
81{\
82        cprefix##_ofb##cbits##_encrypt(in, out, (long)inl, &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, &ctx->num);\
83        return 1;\
84}
85
86#define BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \
87static int cname##_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int inl) \
88{\
89        cprefix##_cbc_encrypt(in, out, (long)inl, &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, ctx->encrypt);\
90        return 1;\
91}
92
93#define BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched) \
94static int cname##_cfb##cbits##_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int inl) \
95{\
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);\
97        return 1;\
98}
99
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)
105
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) \
109static const EVP_CIPHER cname##_##mode = { \
110        nid##_##nmode, block_size, key_len, iv_len, \
111        flags | EVP_CIPH_##MODE##_MODE, \
112        init_key, \
113        cname##_##mode##_cipher, \
114        cleanup, \
115        sizeof(kstruct), \
116        set_asn1, get_asn1,\
117        ctrl, \
118        NULL \
119}; \
120const EVP_CIPHER *EVP_##cname##_##mode(void) { return &cname##_##mode; }
121
122#define BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, \
123                             iv_len, flags, init_key, cleanup, set_asn1, \
124                             get_asn1, ctrl) \
125BLOCK_CIPHER_def1(cname, cbc, cbc, CBC, kstruct, nid, block_size, key_len, \
126                  iv_len, flags, init_key, cleanup, set_asn1, get_asn1, ctrl)
127
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) \
131BLOCK_CIPHER_def1(cname, cfb##cbits, cfb##cbits, CFB, kstruct, nid, 1, \
132                  key_len, iv_len, flags, init_key, cleanup, set_asn1, \
133                  get_asn1, ctrl)
134
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) \
138BLOCK_CIPHER_def1(cname, ofb##cbits, ofb, OFB, kstruct, nid, 1, \
139                  key_len, iv_len, flags, init_key, cleanup, set_asn1, \
140                  get_asn1, ctrl)
141
142#define BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, \
143                             flags, init_key, cleanup, set_asn1, \
144                             get_asn1, ctrl) \
145BLOCK_CIPHER_def1(cname, ecb, ecb, ECB, kstruct, nid, block_size, key_len, \
146                  0, flags, init_key, cleanup, set_asn1, get_asn1, ctrl)
147
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) \
151BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, iv_len, flags, \
152                     init_key, cleanup, set_asn1, get_asn1, ctrl) \
153BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, iv_len, cbits, \
154                     flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \
155BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, iv_len, cbits, \
156                     flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \
157BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, flags, \
158                     init_key, cleanup, set_asn1, get_asn1, ctrl)
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,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