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Commit | Line | Data |
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5da2f69f | 1 | /* evp_locl.h */ |
2e597528 | 2 | /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL |
5da2f69f DSH |
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() \ | |
b444ac3e | 64 | size_t i, bl; \ |
c938563a RL |
65 | bl = ctx->cipher->block_size;\ |
66 | if(inl < bl) return 1;\ | |
67 | inl -= bl; \ | |
34f0a193 | 68 | for(i=0; i <= inl; i+=bl) |
5da2f69f | 69 | |
dbad1690 | 70 | #define BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \ |
b444ac3e | 71 | static int cname##_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t 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 | ||
b444ac3e AP |
78 | #define EVP_MAXCHUNK ((size_t)1<<(sizeof(long)*8-2)) |
79 | ||
a6cd8707 | 80 | #define BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched) \ |
b444ac3e | 81 | static int cname##_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \ |
5da2f69f | 82 | {\ |
b444ac3e AP |
83 | while(inl>=EVP_MAXCHUNK)\ |
84 | {\ | |
85 | cprefix##_ofb##cbits##_encrypt(in, out, (long)EVP_MAXCHUNK, &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, &ctx->num);\ | |
86 | inl-=EVP_MAXCHUNK;\ | |
87 | in +=EVP_MAXCHUNK;\ | |
88 | out+=EVP_MAXCHUNK;\ | |
89 | }\ | |
90 | if (inl)\ | |
91 | cprefix##_ofb##cbits##_encrypt(in, out, (long)inl, &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, &ctx->num);\ | |
5da2f69f DSH |
92 | return 1;\ |
93 | } | |
94 | ||
dbad1690 | 95 | #define BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \ |
b444ac3e | 96 | static int cname##_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \ |
5da2f69f | 97 | {\ |
b444ac3e AP |
98 | while(inl>=EVP_MAXCHUNK) \ |
99 | {\ | |
100 | cprefix##_cbc_encrypt(in, out, (long)EVP_MAXCHUNK, &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, ctx->encrypt);\ | |
101 | inl-=EVP_MAXCHUNK;\ | |
102 | in +=EVP_MAXCHUNK;\ | |
103 | out+=EVP_MAXCHUNK;\ | |
104 | }\ | |
105 | if (inl)\ | |
106 | cprefix##_cbc_encrypt(in, out, (long)inl, &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, ctx->encrypt);\ | |
5da2f69f DSH |
107 | return 1;\ |
108 | } | |
109 | ||
a6cd8707 | 110 | #define BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched) \ |
b444ac3e | 111 | static int cname##_cfb##cbits##_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \ |
5da2f69f | 112 | {\ |
b444ac3e AP |
113 | size_t chunk=EVP_MAXCHUNK;\ |
114 | if (cbits==1) chunk>>=3;\ | |
115 | if (inl<chunk) chunk=inl;\ | |
116 | while(inl && inl>=chunk)\ | |
117 | {\ | |
118 | cprefix##_cfb##cbits##_encrypt(in, out, (long)(cbits==1?chunk*8:chunk), &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, &ctx->num, ctx->encrypt);\ | |
119 | inl-=chunk;\ | |
120 | in +=chunk;\ | |
121 | out+=chunk;\ | |
122 | if(inl<chunk) chunk=inl;\ | |
123 | }\ | |
5da2f69f DSH |
124 | return 1;\ |
125 | } | |
126 | ||
a6cd8707 | 127 | #define BLOCK_CIPHER_all_funcs(cname, cprefix, cbits, kstruct, ksched) \ |
dbad1690 | 128 | BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \ |
a6cd8707 | 129 | BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched) \ |
dbad1690 | 130 | BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \ |
a6cd8707 | 131 | BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched) |
5da2f69f | 132 | |
c518ade1 BL |
133 | #define BLOCK_CIPHER_def1(cname, nmode, mode, MODE, kstruct, nid, block_size, \ |
134 | key_len, iv_len, flags, init_key, cleanup, \ | |
135 | set_asn1, get_asn1, ctrl) \ | |
136 | static const EVP_CIPHER cname##_##mode = { \ | |
137 | nid##_##nmode, block_size, key_len, iv_len, \ | |
138 | flags | EVP_CIPH_##MODE##_MODE, \ | |
139 | init_key, \ | |
140 | cname##_##mode##_cipher, \ | |
141 | cleanup, \ | |
dbad1690 | 142 | sizeof(kstruct), \ |
c518ade1 BL |
143 | set_asn1, get_asn1,\ |
144 | ctrl, \ | |
145 | NULL \ | |
146 | }; \ | |
147 | const EVP_CIPHER *EVP_##cname##_##mode(void) { return &cname##_##mode; } | |
148 | ||
149 | #define BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, \ | |
150 | iv_len, flags, init_key, cleanup, set_asn1, \ | |
151 | get_asn1, ctrl) \ | |
152 | BLOCK_CIPHER_def1(cname, cbc, cbc, CBC, kstruct, nid, block_size, key_len, \ | |
153 | iv_len, flags, init_key, cleanup, set_asn1, get_asn1, ctrl) | |
154 | ||
3f6db7f5 | 155 | #define BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, \ |
a6cd8707 RL |
156 | iv_len, cbits, flags, init_key, cleanup, \ |
157 | set_asn1, get_asn1, ctrl) \ | |
8d1ebe0b | 158 | BLOCK_CIPHER_def1(cname, cfb##cbits, cfb##cbits, CFB, kstruct, nid, 1, \ |
a6cd8707 RL |
159 | key_len, iv_len, flags, init_key, cleanup, set_asn1, \ |
160 | get_asn1, ctrl) | |
c518ade1 | 161 | |
3f6db7f5 | 162 | #define BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, \ |
a6cd8707 RL |
163 | iv_len, cbits, flags, init_key, cleanup, \ |
164 | set_asn1, get_asn1, ctrl) \ | |
3f6db7f5 | 165 | BLOCK_CIPHER_def1(cname, ofb##cbits, ofb, OFB, kstruct, nid, 1, \ |
a6cd8707 RL |
166 | key_len, iv_len, flags, init_key, cleanup, set_asn1, \ |
167 | get_asn1, ctrl) | |
c518ade1 BL |
168 | |
169 | #define BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, \ | |
170 | iv_len, flags, init_key, cleanup, set_asn1, \ | |
171 | get_asn1, ctrl) \ | |
172 | BLOCK_CIPHER_def1(cname, ecb, ecb, ECB, kstruct, nid, block_size, key_len, \ | |
173 | iv_len, flags, init_key, cleanup, set_asn1, get_asn1, ctrl) | |
174 | ||
175 | #define BLOCK_CIPHER_defs(cname, kstruct, \ | |
a6cd8707 | 176 | nid, block_size, key_len, iv_len, cbits, flags, \ |
c518ade1 BL |
177 | init_key, cleanup, set_asn1, get_asn1, ctrl) \ |
178 | BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, iv_len, flags, \ | |
179 | init_key, cleanup, set_asn1, get_asn1, ctrl) \ | |
3f6db7f5 | 180 | BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, iv_len, cbits, \ |
a6cd8707 | 181 | flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \ |
3f6db7f5 | 182 | BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, iv_len, cbits, \ |
a6cd8707 | 183 | flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \ |
c518ade1 BL |
184 | BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, iv_len, flags, \ |
185 | init_key, cleanup, set_asn1, get_asn1, ctrl) | |
186 | ||
187 | ||
188 | /* | |
5da2f69f DSH |
189 | #define BLOCK_CIPHER_defs(cname, kstruct, \ |
190 | nid, block_size, key_len, iv_len, flags,\ | |
191 | init_key, cleanup, set_asn1, get_asn1, ctrl)\ | |
13588350 | 192 | static const EVP_CIPHER cname##_cbc = {\ |
5da2f69f DSH |
193 | nid##_cbc, block_size, key_len, iv_len, \ |
194 | flags | EVP_CIPH_CBC_MODE,\ | |
195 | init_key,\ | |
196 | cname##_cbc_cipher,\ | |
197 | cleanup,\ | |
198 | sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\ | |
e366f2b8 | 199 | sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\ |
5da2f69f DSH |
200 | set_asn1, get_asn1,\ |
201 | ctrl, \ | |
202 | NULL \ | |
203 | };\ | |
13588350 DSH |
204 | const EVP_CIPHER *EVP_##cname##_cbc(void) { return &cname##_cbc; }\ |
205 | static const EVP_CIPHER cname##_cfb = {\ | |
5da2f69f DSH |
206 | nid##_cfb64, 1, key_len, iv_len, \ |
207 | flags | EVP_CIPH_CFB_MODE,\ | |
208 | init_key,\ | |
209 | cname##_cfb_cipher,\ | |
210 | cleanup,\ | |
211 | sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\ | |
e366f2b8 | 212 | sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\ |
5da2f69f DSH |
213 | set_asn1, get_asn1,\ |
214 | ctrl,\ | |
215 | NULL \ | |
216 | };\ | |
13588350 DSH |
217 | const EVP_CIPHER *EVP_##cname##_cfb(void) { return &cname##_cfb; }\ |
218 | static const EVP_CIPHER cname##_ofb = {\ | |
5da2f69f DSH |
219 | nid##_ofb64, 1, key_len, iv_len, \ |
220 | flags | EVP_CIPH_OFB_MODE,\ | |
221 | init_key,\ | |
222 | cname##_ofb_cipher,\ | |
223 | cleanup,\ | |
224 | sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\ | |
e366f2b8 | 225 | sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\ |
5da2f69f DSH |
226 | set_asn1, get_asn1,\ |
227 | ctrl,\ | |
228 | NULL \ | |
229 | };\ | |
13588350 DSH |
230 | const EVP_CIPHER *EVP_##cname##_ofb(void) { return &cname##_ofb; }\ |
231 | static const EVP_CIPHER cname##_ecb = {\ | |
5da2f69f DSH |
232 | nid##_ecb, block_size, key_len, iv_len, \ |
233 | flags | EVP_CIPH_ECB_MODE,\ | |
234 | init_key,\ | |
235 | cname##_ecb_cipher,\ | |
236 | cleanup,\ | |
237 | sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\ | |
e366f2b8 | 238 | sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\ |
5da2f69f DSH |
239 | set_asn1, get_asn1,\ |
240 | ctrl,\ | |
241 | NULL \ | |
242 | };\ | |
13588350 | 243 | const EVP_CIPHER *EVP_##cname##_ecb(void) { return &cname##_ecb; } |
c518ade1 | 244 | */ |
5da2f69f | 245 | |
dbad1690 | 246 | #define IMPLEMENT_BLOCK_CIPHER(cname, ksched, cprefix, kstruct, nid, \ |
a6cd8707 RL |
247 | block_size, key_len, iv_len, cbits, \ |
248 | flags, init_key, \ | |
dbad1690 | 249 | cleanup, set_asn1, get_asn1, ctrl) \ |
a6cd8707 | 250 | BLOCK_CIPHER_all_funcs(cname, cprefix, cbits, kstruct, ksched) \ |
dbad1690 | 251 | BLOCK_CIPHER_defs(cname, kstruct, nid, block_size, key_len, iv_len, \ |
a6cd8707 RL |
252 | cbits, flags, init_key, cleanup, set_asn1, \ |
253 | get_asn1, ctrl) | |
5da2f69f | 254 | |
dbad1690 | 255 | #define EVP_C_DATA(kstruct, ctx) ((kstruct *)(ctx)->cipher_data) |
8d1ebe0b RL |
256 | |
257 | #define IMPLEMENT_CFBR(cipher,cprefix,kstruct,ksched,keysize,cbits,iv_len) \ | |
258 | BLOCK_CIPHER_func_cfb(cipher##_##keysize,cprefix,cbits,kstruct,ksched) \ | |
259 | BLOCK_CIPHER_def_cfb(cipher##_##keysize,kstruct, \ | |
260 | NID_##cipher##_##keysize, keysize/8, iv_len, cbits, \ | |
261 | 0, cipher##_init_key, NULL, \ | |
262 | EVP_CIPHER_set_asn1_iv, \ | |
263 | EVP_CIPHER_get_asn1_iv, \ | |
264 | NULL) | |
0b6f3c66 | 265 | |
0b6f3c66 DSH |
266 | struct evp_pkey_ctx_st |
267 | { | |
268 | /* Method associated with this operation */ | |
269 | const EVP_PKEY_METHOD *pmeth; | |
c9777d26 DSH |
270 | /* Engine that implements this method or NULL if builtin */ |
271 | ENGINE *engine; | |
0b6f3c66 DSH |
272 | /* Key: may be NULL */ |
273 | EVP_PKEY *pkey; | |
d87e6152 DSH |
274 | /* Peer key for key agreement, may be NULL */ |
275 | EVP_PKEY *peerkey; | |
0b6f3c66 DSH |
276 | /* Actual operation */ |
277 | int operation; | |
278 | /* Algorithm specific data */ | |
279 | void *data; | |
f5cda4cb DSH |
280 | /* Application specific data */ |
281 | void *app_data; | |
282 | /* Keygen callback */ | |
283 | EVP_PKEY_gen_cb *pkey_gencb; | |
284 | /* implementation specific keygen data */ | |
285 | int *keygen_info; | |
286 | int keygen_info_count; | |
0b6f3c66 DSH |
287 | } /* EVP_PKEY_CTX */; |
288 | ||
b010b7c4 | 289 | #define EVP_PKEY_FLAG_DYNAMIC 1 |
ba30bad5 | 290 | |
0b6f3c66 DSH |
291 | struct evp_pkey_method_st |
292 | { | |
293 | int pkey_id; | |
5da98aa6 | 294 | int flags; |
07e970c7 | 295 | |
5da98aa6 | 296 | int (*init)(EVP_PKEY_CTX *ctx); |
8bdcef40 | 297 | int (*copy)(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src); |
07e970c7 | 298 | void (*cleanup)(EVP_PKEY_CTX *ctx); |
f733a5ef | 299 | |
0b6f3c66 | 300 | int (*paramgen_init)(EVP_PKEY_CTX *ctx); |
f5cda4cb | 301 | int (*paramgen)(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey); |
0b6f3c66 DSH |
302 | |
303 | int (*keygen_init)(EVP_PKEY_CTX *ctx); | |
f5cda4cb | 304 | int (*keygen)(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey); |
0b6f3c66 | 305 | |
cd763898 | 306 | int (*sign_init)(EVP_PKEY_CTX *ctx); |
eaff5a14 DSH |
307 | int (*sign)(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen, |
308 | const unsigned char *tbs, size_t tbslen); | |
0b6f3c66 | 309 | |
cd763898 | 310 | int (*verify_init)(EVP_PKEY_CTX *ctx); |
eaff5a14 DSH |
311 | int (*verify)(EVP_PKEY_CTX *ctx, |
312 | const unsigned char *sig, size_t siglen, | |
313 | const unsigned char *tbs, size_t tbslen); | |
0b6f3c66 | 314 | |
cd763898 | 315 | int (*verify_recover_init)(EVP_PKEY_CTX *ctx); |
0b6f3c66 | 316 | int (*verify_recover)(EVP_PKEY_CTX *ctx, |
eaff5a14 DSH |
317 | unsigned char *rout, size_t *routlen, |
318 | const unsigned char *sig, size_t siglen); | |
0b6f3c66 | 319 | |
cd763898 | 320 | int (*signctx_init)(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx); |
eaff5a14 | 321 | int (*signctx)(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen, |
0b6f3c66 DSH |
322 | EVP_MD_CTX *mctx); |
323 | ||
cd763898 | 324 | int (*verifyctx_init)(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx); |
a58a6368 | 325 | int (*verifyctx)(EVP_PKEY_CTX *ctx, const unsigned char *sig,int siglen, |
0b6f3c66 DSH |
326 | EVP_MD_CTX *mctx); |
327 | ||
cd763898 | 328 | int (*encrypt_init)(EVP_PKEY_CTX *ctx); |
eaff5a14 DSH |
329 | int (*encrypt)(EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen, |
330 | const unsigned char *in, size_t inlen); | |
0b6f3c66 | 331 | |
cd763898 | 332 | int (*decrypt_init)(EVP_PKEY_CTX *ctx); |
eaff5a14 DSH |
333 | int (*decrypt)(EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen, |
334 | const unsigned char *in, size_t inlen); | |
0b6f3c66 | 335 | |
d87e6152 | 336 | int (*derive_init)(EVP_PKEY_CTX *ctx); |
eaff5a14 | 337 | int (*derive)(EVP_PKEY_CTX *ctx, unsigned char *key, size_t *keylen); |
d87e6152 | 338 | |
0b6f3c66 DSH |
339 | int (*ctrl)(EVP_PKEY_CTX *ctx, int type, int p1, void *p2); |
340 | int (*ctrl_str)(EVP_PKEY_CTX *ctx, const char *type, const char *value); | |
341 | ||
0b6f3c66 DSH |
342 | |
343 | } /* EVP_PKEY_METHOD */; | |
f5cda4cb DSH |
344 | |
345 | void evp_pkey_set_cb_translate(BN_GENCB *cb, EVP_PKEY_CTX *ctx); |