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5da2f69f DSH |
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() \ | |
c938563a RL |
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) \ | |
5da2f69f | 69 | |
dbad1690 | 70 | #define BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \ |
1921eaad | 71 | static int cname##_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int inl) \ |
5da2f69f DSH |
72 | {\ |
73 | BLOCK_CIPHER_ecb_loop() \ | |
dbad1690 | 74 | cprefix##_ecb_encrypt(in + i, out + i, &((kstruct *)ctx->cipher_data)->ksched, ctx->encrypt);\ |
5da2f69f DSH |
75 | return 1;\ |
76 | } | |
77 | ||
a6cd8707 | 78 | #define BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched) \ |
1921eaad | 79 | static int cname##_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int inl) \ |
5da2f69f | 80 | {\ |
a6cd8707 | 81 | cprefix##_ofb##cbits##_encrypt(in, out, (long)inl, &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, &ctx->num);\ |
5da2f69f DSH |
82 | return 1;\ |
83 | } | |
84 | ||
dbad1690 | 85 | #define BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \ |
1921eaad | 86 | static int cname##_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int inl) \ |
5da2f69f | 87 | {\ |
dbad1690 | 88 | cprefix##_cbc_encrypt(in, out, (long)inl, &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, ctx->encrypt);\ |
5da2f69f DSH |
89 | return 1;\ |
90 | } | |
91 | ||
a6cd8707 | 92 | #define BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched) \ |
8d1ebe0b | 93 | static int cname##_cfb##cbits##_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int inl) \ |
5da2f69f | 94 | {\ |
a6cd8707 | 95 | cprefix##_cfb##cbits##_encrypt(in, out, (long)inl, &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, &ctx->num, ctx->encrypt);\ |
5da2f69f DSH |
96 | return 1;\ |
97 | } | |
98 | ||
a6cd8707 | 99 | #define BLOCK_CIPHER_all_funcs(cname, cprefix, cbits, kstruct, ksched) \ |
dbad1690 | 100 | BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \ |
a6cd8707 | 101 | BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched) \ |
dbad1690 | 102 | BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \ |
a6cd8707 | 103 | BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched) |
5da2f69f | 104 | |
c518ade1 BL |
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, \ | |
dbad1690 | 114 | sizeof(kstruct), \ |
c518ade1 BL |
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 | ||
3f6db7f5 | 127 | #define BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, \ |
a6cd8707 RL |
128 | iv_len, cbits, flags, init_key, cleanup, \ |
129 | set_asn1, get_asn1, ctrl) \ | |
8d1ebe0b | 130 | BLOCK_CIPHER_def1(cname, cfb##cbits, cfb##cbits, CFB, kstruct, nid, 1, \ |
a6cd8707 RL |
131 | key_len, iv_len, flags, init_key, cleanup, set_asn1, \ |
132 | get_asn1, ctrl) | |
c518ade1 | 133 | |
3f6db7f5 | 134 | #define BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, \ |
a6cd8707 RL |
135 | iv_len, cbits, flags, init_key, cleanup, \ |
136 | set_asn1, get_asn1, ctrl) \ | |
3f6db7f5 | 137 | BLOCK_CIPHER_def1(cname, ofb##cbits, ofb, OFB, kstruct, nid, 1, \ |
a6cd8707 RL |
138 | key_len, iv_len, flags, init_key, cleanup, set_asn1, \ |
139 | get_asn1, ctrl) | |
c518ade1 BL |
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) \ | |
144 | BLOCK_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, \ | |
a6cd8707 | 148 | nid, block_size, key_len, iv_len, cbits, flags, \ |
c518ade1 BL |
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) \ | |
3f6db7f5 | 152 | BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, iv_len, cbits, \ |
a6cd8707 | 153 | flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \ |
3f6db7f5 | 154 | BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, iv_len, cbits, \ |
a6cd8707 | 155 | flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \ |
c518ade1 BL |
156 | BLOCK_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 | /* | |
5da2f69f DSH |
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)\ | |
13588350 | 164 | static const EVP_CIPHER cname##_cbc = {\ |
5da2f69f DSH |
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))+\ | |
e366f2b8 | 171 | sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\ |
5da2f69f DSH |
172 | set_asn1, get_asn1,\ |
173 | ctrl, \ | |
174 | NULL \ | |
175 | };\ | |
13588350 DSH |
176 | const EVP_CIPHER *EVP_##cname##_cbc(void) { return &cname##_cbc; }\ |
177 | static const EVP_CIPHER cname##_cfb = {\ | |
5da2f69f DSH |
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))+\ | |
e366f2b8 | 184 | sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\ |
5da2f69f DSH |
185 | set_asn1, get_asn1,\ |
186 | ctrl,\ | |
187 | NULL \ | |
188 | };\ | |
13588350 DSH |
189 | const EVP_CIPHER *EVP_##cname##_cfb(void) { return &cname##_cfb; }\ |
190 | static const EVP_CIPHER cname##_ofb = {\ | |
5da2f69f DSH |
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))+\ | |
e366f2b8 | 197 | sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\ |
5da2f69f DSH |
198 | set_asn1, get_asn1,\ |
199 | ctrl,\ | |
200 | NULL \ | |
201 | };\ | |
13588350 DSH |
202 | const EVP_CIPHER *EVP_##cname##_ofb(void) { return &cname##_ofb; }\ |
203 | static const EVP_CIPHER cname##_ecb = {\ | |
5da2f69f DSH |
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))+\ | |
e366f2b8 | 210 | sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\ |
5da2f69f DSH |
211 | set_asn1, get_asn1,\ |
212 | ctrl,\ | |
213 | NULL \ | |
214 | };\ | |
13588350 | 215 | const EVP_CIPHER *EVP_##cname##_ecb(void) { return &cname##_ecb; } |
c518ade1 | 216 | */ |
5da2f69f | 217 | |
dbad1690 | 218 | #define IMPLEMENT_BLOCK_CIPHER(cname, ksched, cprefix, kstruct, nid, \ |
a6cd8707 RL |
219 | block_size, key_len, iv_len, cbits, \ |
220 | flags, init_key, \ | |
dbad1690 | 221 | cleanup, set_asn1, get_asn1, ctrl) \ |
a6cd8707 | 222 | BLOCK_CIPHER_all_funcs(cname, cprefix, cbits, kstruct, ksched) \ |
dbad1690 | 223 | BLOCK_CIPHER_defs(cname, kstruct, nid, block_size, key_len, iv_len, \ |
a6cd8707 RL |
224 | cbits, flags, init_key, cleanup, set_asn1, \ |
225 | get_asn1, ctrl) | |
5da2f69f | 226 | |
dbad1690 | 227 | #define EVP_C_DATA(kstruct, ctx) ((kstruct *)(ctx)->cipher_data) |
8d1ebe0b RL |
228 | |
229 | #define IMPLEMENT_CFBR(cipher,cprefix,kstruct,ksched,keysize,cbits,iv_len) \ | |
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 | 0, cipher##_init_key, NULL, \ | |
234 | EVP_CIPHER_set_asn1_iv, \ | |
235 | EVP_CIPHER_get_asn1_iv, \ | |
236 | NULL) | |
0b6f3c66 | 237 | |
0b6f3c66 DSH |
238 | struct evp_pkey_ctx_st |
239 | { | |
240 | /* Method associated with this operation */ | |
241 | const EVP_PKEY_METHOD *pmeth; | |
242 | /* Key: may be NULL */ | |
243 | EVP_PKEY *pkey; | |
244 | /* Actual operation */ | |
245 | int operation; | |
246 | /* Algorithm specific data */ | |
247 | void *data; | |
f5cda4cb DSH |
248 | /* Application specific data */ |
249 | void *app_data; | |
250 | /* Keygen callback */ | |
251 | EVP_PKEY_gen_cb *pkey_gencb; | |
252 | /* implementation specific keygen data */ | |
253 | int *keygen_info; | |
254 | int keygen_info_count; | |
0b6f3c66 DSH |
255 | } /* EVP_PKEY_CTX */; |
256 | ||
0b6f3c66 DSH |
257 | struct evp_pkey_method_st |
258 | { | |
259 | int pkey_id; | |
5da98aa6 | 260 | int flags; |
07e970c7 | 261 | |
5da98aa6 | 262 | int (*init)(EVP_PKEY_CTX *ctx); |
07e970c7 | 263 | void (*cleanup)(EVP_PKEY_CTX *ctx); |
f733a5ef | 264 | |
0b6f3c66 | 265 | int (*paramgen_init)(EVP_PKEY_CTX *ctx); |
f5cda4cb | 266 | int (*paramgen)(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey); |
0b6f3c66 DSH |
267 | |
268 | int (*keygen_init)(EVP_PKEY_CTX *ctx); | |
f5cda4cb | 269 | int (*keygen)(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey); |
0b6f3c66 | 270 | |
cd763898 | 271 | int (*sign_init)(EVP_PKEY_CTX *ctx); |
0b6f3c66 | 272 | int (*sign)(EVP_PKEY_CTX *ctx, unsigned char *sig, int *siglen, |
a58a6368 | 273 | const unsigned char *tbs, int tbslen); |
0b6f3c66 | 274 | |
cd763898 | 275 | int (*verify_init)(EVP_PKEY_CTX *ctx); |
a58a6368 DSH |
276 | int (*verify)(EVP_PKEY_CTX *ctx, const unsigned char *sig, int siglen, |
277 | const unsigned char *tbs, int tbslen); | |
0b6f3c66 | 278 | |
cd763898 | 279 | int (*verify_recover_init)(EVP_PKEY_CTX *ctx); |
0b6f3c66 DSH |
280 | int (*verify_recover)(EVP_PKEY_CTX *ctx, |
281 | unsigned char *rout, int *routlen, | |
a58a6368 | 282 | const unsigned char *sig, int siglen); |
0b6f3c66 | 283 | |
cd763898 | 284 | int (*signctx_init)(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx); |
0b6f3c66 DSH |
285 | int (*signctx)(EVP_PKEY_CTX *ctx, unsigned char *sig, int *siglen, |
286 | EVP_MD_CTX *mctx); | |
287 | ||
cd763898 | 288 | int (*verifyctx_init)(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx); |
a58a6368 | 289 | int (*verifyctx)(EVP_PKEY_CTX *ctx, const unsigned char *sig,int siglen, |
0b6f3c66 DSH |
290 | EVP_MD_CTX *mctx); |
291 | ||
cd763898 | 292 | int (*encrypt_init)(EVP_PKEY_CTX *ctx); |
0b6f3c66 | 293 | int (*encrypt)(EVP_PKEY_CTX *ctx, unsigned char *out, int *outlen, |
a58a6368 | 294 | const unsigned char *in, int inlen); |
0b6f3c66 | 295 | |
cd763898 | 296 | int (*decrypt_init)(EVP_PKEY_CTX *ctx); |
0b6f3c66 | 297 | int (*decrypt)(EVP_PKEY_CTX *ctx, unsigned char *out, int *outlen, |
a58a6368 | 298 | const unsigned char *in, int inlen); |
0b6f3c66 DSH |
299 | |
300 | int (*ctrl)(EVP_PKEY_CTX *ctx, int type, int p1, void *p2); | |
301 | int (*ctrl_str)(EVP_PKEY_CTX *ctx, const char *type, const char *value); | |
302 | ||
0b6f3c66 DSH |
303 | |
304 | } /* EVP_PKEY_METHOD */; | |
f5cda4cb DSH |
305 | |
306 | void evp_pkey_set_cb_translate(BN_GENCB *cb, EVP_PKEY_CTX *ctx); |