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58964a49 RE |
1 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
2 | * All rights reserved. | |
3 | * | |
4 | * This package is an SSL implementation written | |
5 | * by Eric Young (eay@cryptsoft.com). | |
6 | * The implementation was written so as to conform with Netscapes SSL. | |
0f113f3e | 7 | * |
58964a49 RE |
8 | * This library is free for commercial and non-commercial use as long as |
9 | * the following conditions are aheared to. The following conditions | |
10 | * apply to all code found in this distribution, be it the RC4, RSA, | |
11 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation | |
12 | * included with this distribution is covered by the same copyright terms | |
13 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). | |
0f113f3e | 14 | * |
58964a49 RE |
15 | * Copyright remains Eric Young's, and as such any Copyright notices in |
16 | * the code are not to be removed. | |
17 | * If this package is used in a product, Eric Young should be given attribution | |
18 | * as the author of the parts of the library used. | |
19 | * This can be in the form of a textual message at program startup or | |
20 | * in documentation (online or textual) provided with the package. | |
0f113f3e | 21 | * |
58964a49 RE |
22 | * Redistribution and use in source and binary forms, with or without |
23 | * modification, are permitted provided that the following conditions | |
24 | * are met: | |
25 | * 1. Redistributions of source code must retain the copyright | |
26 | * notice, this list of conditions and the following disclaimer. | |
27 | * 2. Redistributions in binary form must reproduce the above copyright | |
28 | * notice, this list of conditions and the following disclaimer in the | |
29 | * documentation and/or other materials provided with the distribution. | |
30 | * 3. All advertising materials mentioning features or use of this software | |
31 | * must display the following acknowledgement: | |
32 | * "This product includes cryptographic software written by | |
33 | * Eric Young (eay@cryptsoft.com)" | |
34 | * The word 'cryptographic' can be left out if the rouines from the library | |
35 | * being used are not cryptographic related :-). | |
0f113f3e | 36 | * 4. If you include any Windows specific code (or a derivative thereof) from |
58964a49 RE |
37 | * the apps directory (application code) you must include an acknowledgement: |
38 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | |
0f113f3e | 39 | * |
58964a49 RE |
40 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
41 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
42 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
43 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
44 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
45 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
46 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
47 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
48 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
49 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
50 | * SUCH DAMAGE. | |
0f113f3e | 51 | * |
58964a49 RE |
52 | * The licence and distribution terms for any publically available version or |
53 | * derivative of this code cannot be changed. i.e. this code cannot simply be | |
54 | * copied and put under another distribution licence | |
55 | * [including the GNU Public Licence.] | |
56 | */ | |
57 | ||
58 | #include <stdio.h> | |
b39fc560 | 59 | #include "internal/cryptlib.h" |
ec577822 BM |
60 | #include <openssl/evp.h> |
61 | #include <openssl/objects.h> | |
2db6bf6f | 62 | #include "internal/evp_int.h" |
7638370c | 63 | #include "evp_locl.h" |
58964a49 | 64 | |
6b691a5c | 65 | int EVP_CIPHER_param_to_asn1(EVP_CIPHER_CTX *c, ASN1_TYPE *type) |
0f113f3e MC |
66 | { |
67 | int ret; | |
68 | ||
69 | if (c->cipher->set_asn1_parameters != NULL) | |
70 | ret = c->cipher->set_asn1_parameters(c, type); | |
71 | else if (c->cipher->flags & EVP_CIPH_FLAG_DEFAULT_ASN1) { | |
2acdef5e DSH |
72 | switch (EVP_CIPHER_CTX_mode(c)) { |
73 | case EVP_CIPH_WRAP_MODE: | |
4ec36aff DSH |
74 | if (EVP_CIPHER_CTX_nid(c) == NID_id_smime_alg_CMS3DESwrap) |
75 | ASN1_TYPE_set(type, V_ASN1_NULL, NULL); | |
0f113f3e | 76 | ret = 1; |
2acdef5e DSH |
77 | break; |
78 | ||
79 | case EVP_CIPH_GCM_MODE: | |
80 | case EVP_CIPH_CCM_MODE: | |
81 | case EVP_CIPH_XTS_MODE: | |
82 | case EVP_CIPH_OCB_MODE: | |
83 | ret = -1; | |
84 | break; | |
85 | ||
86 | default: | |
0f113f3e | 87 | ret = EVP_CIPHER_set_asn1_iv(c, type); |
2acdef5e | 88 | } |
0f113f3e MC |
89 | } else |
90 | ret = -1; | |
91 | return (ret); | |
92 | } | |
58964a49 | 93 | |
6b691a5c | 94 | int EVP_CIPHER_asn1_to_param(EVP_CIPHER_CTX *c, ASN1_TYPE *type) |
0f113f3e MC |
95 | { |
96 | int ret; | |
97 | ||
98 | if (c->cipher->get_asn1_parameters != NULL) | |
99 | ret = c->cipher->get_asn1_parameters(c, type); | |
100 | else if (c->cipher->flags & EVP_CIPH_FLAG_DEFAULT_ASN1) { | |
2acdef5e DSH |
101 | switch (EVP_CIPHER_CTX_mode(c)) { |
102 | ||
103 | case EVP_CIPH_WRAP_MODE: | |
104 | ret = 1; | |
105 | break; | |
106 | ||
107 | case EVP_CIPH_GCM_MODE: | |
108 | case EVP_CIPH_CCM_MODE: | |
109 | case EVP_CIPH_XTS_MODE: | |
110 | case EVP_CIPH_OCB_MODE: | |
111 | ret = -1; | |
112 | break; | |
113 | ||
114 | default: | |
115 | ret = EVP_CIPHER_get_asn1_iv(c, type); | |
116 | break; | |
117 | } | |
0f113f3e MC |
118 | } else |
119 | ret = -1; | |
120 | return (ret); | |
121 | } | |
58964a49 | 122 | |
6b691a5c | 123 | int EVP_CIPHER_get_asn1_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type) |
0f113f3e MC |
124 | { |
125 | int i = 0; | |
126 | unsigned int l; | |
127 | ||
128 | if (type != NULL) { | |
129 | l = EVP_CIPHER_CTX_iv_length(c); | |
130 | OPENSSL_assert(l <= sizeof(c->iv)); | |
131 | i = ASN1_TYPE_get_octetstring(type, c->oiv, l); | |
132 | if (i != (int)l) | |
133 | return (-1); | |
134 | else if (i > 0) | |
135 | memcpy(c->iv, c->oiv, l); | |
136 | } | |
137 | return (i); | |
138 | } | |
58964a49 | 139 | |
6b691a5c | 140 | int EVP_CIPHER_set_asn1_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type) |
0f113f3e MC |
141 | { |
142 | int i = 0; | |
143 | unsigned int j; | |
144 | ||
145 | if (type != NULL) { | |
146 | j = EVP_CIPHER_CTX_iv_length(c); | |
147 | OPENSSL_assert(j <= sizeof(c->iv)); | |
148 | i = ASN1_TYPE_set_octetstring(type, c->oiv, j); | |
149 | } | |
150 | return (i); | |
151 | } | |
884e8ec6 DSH |
152 | |
153 | /* Convert the various cipher NIDs and dummies to a proper OID NID */ | |
84fa704c | 154 | int EVP_CIPHER_type(const EVP_CIPHER *ctx) |
884e8ec6 | 155 | { |
0f113f3e MC |
156 | int nid; |
157 | ASN1_OBJECT *otmp; | |
158 | nid = EVP_CIPHER_nid(ctx); | |
884e8ec6 | 159 | |
0f113f3e | 160 | switch (nid) { |
884e8ec6 | 161 | |
0f113f3e MC |
162 | case NID_rc2_cbc: |
163 | case NID_rc2_64_cbc: | |
164 | case NID_rc2_40_cbc: | |
884e8ec6 | 165 | |
0f113f3e | 166 | return NID_rc2_cbc; |
884e8ec6 | 167 | |
0f113f3e MC |
168 | case NID_rc4: |
169 | case NID_rc4_40: | |
884e8ec6 | 170 | |
0f113f3e | 171 | return NID_rc4; |
884e8ec6 | 172 | |
0f113f3e MC |
173 | case NID_aes_128_cfb128: |
174 | case NID_aes_128_cfb8: | |
175 | case NID_aes_128_cfb1: | |
8d1ebe0b | 176 | |
0f113f3e | 177 | return NID_aes_128_cfb128; |
8d1ebe0b | 178 | |
0f113f3e MC |
179 | case NID_aes_192_cfb128: |
180 | case NID_aes_192_cfb8: | |
181 | case NID_aes_192_cfb1: | |
8d1ebe0b | 182 | |
0f113f3e | 183 | return NID_aes_192_cfb128; |
8d1ebe0b | 184 | |
0f113f3e MC |
185 | case NID_aes_256_cfb128: |
186 | case NID_aes_256_cfb8: | |
187 | case NID_aes_256_cfb1: | |
8d1ebe0b | 188 | |
0f113f3e | 189 | return NID_aes_256_cfb128; |
8d1ebe0b | 190 | |
0f113f3e MC |
191 | case NID_des_cfb64: |
192 | case NID_des_cfb8: | |
193 | case NID_des_cfb1: | |
8d1ebe0b | 194 | |
0f113f3e | 195 | return NID_des_cfb64; |
8d1ebe0b | 196 | |
0f113f3e MC |
197 | case NID_des_ede3_cfb64: |
198 | case NID_des_ede3_cfb8: | |
199 | case NID_des_ede3_cfb1: | |
7e765bf2 | 200 | |
0f113f3e | 201 | return NID_des_cfb64; |
7e765bf2 | 202 | |
0f113f3e MC |
203 | default: |
204 | /* Check it has an OID and it is valid */ | |
205 | otmp = OBJ_nid2obj(nid); | |
2e430277 | 206 | if (OBJ_get0_data(otmp) == NULL) |
0f113f3e MC |
207 | nid = NID_undef; |
208 | ASN1_OBJECT_free(otmp); | |
209 | return nid; | |
210 | } | |
884e8ec6 DSH |
211 | } |
212 | ||
6343829a | 213 | int EVP_CIPHER_block_size(const EVP_CIPHER *e) |
0f113f3e MC |
214 | { |
215 | return e->block_size; | |
216 | } | |
7806f3dd | 217 | |
6343829a | 218 | int EVP_CIPHER_CTX_block_size(const EVP_CIPHER_CTX *ctx) |
0f113f3e MC |
219 | { |
220 | return ctx->cipher->block_size; | |
221 | } | |
7806f3dd | 222 | |
e79f8773 RL |
223 | int EVP_CIPHER_impl_ctx_size(const EVP_CIPHER *e) |
224 | { | |
225 | return e->ctx_size; | |
226 | } | |
227 | ||
0f113f3e MC |
228 | int EVP_Cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, |
229 | const unsigned char *in, unsigned int inl) | |
230 | { | |
231 | return ctx->cipher->do_cipher(ctx, out, in, inl); | |
232 | } | |
7806f3dd NL |
233 | |
234 | const EVP_CIPHER *EVP_CIPHER_CTX_cipher(const EVP_CIPHER_CTX *ctx) | |
0f113f3e MC |
235 | { |
236 | return ctx->cipher; | |
237 | } | |
7806f3dd | 238 | |
83b06347 RL |
239 | int EVP_CIPHER_CTX_encrypting(const EVP_CIPHER_CTX *ctx) |
240 | { | |
241 | return ctx->encrypt; | |
242 | } | |
243 | ||
7806f3dd | 244 | unsigned long EVP_CIPHER_flags(const EVP_CIPHER *cipher) |
0f113f3e MC |
245 | { |
246 | return cipher->flags; | |
247 | } | |
7806f3dd | 248 | |
7806f3dd | 249 | void *EVP_CIPHER_CTX_get_app_data(const EVP_CIPHER_CTX *ctx) |
0f113f3e MC |
250 | { |
251 | return ctx->app_data; | |
252 | } | |
7806f3dd NL |
253 | |
254 | void EVP_CIPHER_CTX_set_app_data(EVP_CIPHER_CTX *ctx, void *data) | |
0f113f3e MC |
255 | { |
256 | ctx->app_data = data; | |
257 | } | |
7806f3dd | 258 | |
83b06347 RL |
259 | void *EVP_CIPHER_CTX_cipher_data(const EVP_CIPHER_CTX *ctx) |
260 | { | |
261 | return ctx->cipher_data; | |
262 | } | |
263 | ||
6343829a | 264 | int EVP_CIPHER_iv_length(const EVP_CIPHER *cipher) |
0f113f3e MC |
265 | { |
266 | return cipher->iv_len; | |
267 | } | |
7806f3dd | 268 | |
6343829a | 269 | int EVP_CIPHER_CTX_iv_length(const EVP_CIPHER_CTX *ctx) |
0f113f3e MC |
270 | { |
271 | return ctx->cipher->iv_len; | |
272 | } | |
7806f3dd | 273 | |
83b06347 RL |
274 | const unsigned char *EVP_CIPHER_CTX_original_iv(const EVP_CIPHER_CTX *ctx) |
275 | { | |
276 | return ctx->oiv; | |
277 | } | |
278 | ||
279 | const unsigned char *EVP_CIPHER_CTX_iv(const EVP_CIPHER_CTX *ctx) | |
280 | { | |
281 | return ctx->iv; | |
282 | } | |
283 | ||
284 | unsigned char *EVP_CIPHER_CTX_iv_noconst(EVP_CIPHER_CTX *ctx) | |
285 | { | |
286 | return ctx->iv; | |
287 | } | |
288 | ||
289 | unsigned char *EVP_CIPHER_CTX_buf_noconst(EVP_CIPHER_CTX *ctx) | |
290 | { | |
291 | return ctx->buf; | |
292 | } | |
293 | ||
294 | int EVP_CIPHER_CTX_num(const EVP_CIPHER_CTX *ctx) | |
295 | { | |
296 | return ctx->num; | |
297 | } | |
298 | ||
299 | void EVP_CIPHER_CTX_set_num(EVP_CIPHER_CTX *ctx, int num) | |
300 | { | |
301 | ctx->num = num; | |
302 | } | |
303 | ||
6343829a | 304 | int EVP_CIPHER_key_length(const EVP_CIPHER *cipher) |
0f113f3e MC |
305 | { |
306 | return cipher->key_len; | |
307 | } | |
7806f3dd | 308 | |
6343829a | 309 | int EVP_CIPHER_CTX_key_length(const EVP_CIPHER_CTX *ctx) |
0f113f3e MC |
310 | { |
311 | return ctx->key_len; | |
312 | } | |
7806f3dd NL |
313 | |
314 | int EVP_CIPHER_nid(const EVP_CIPHER *cipher) | |
0f113f3e MC |
315 | { |
316 | return cipher->nid; | |
317 | } | |
7806f3dd NL |
318 | |
319 | int EVP_CIPHER_CTX_nid(const EVP_CIPHER_CTX *ctx) | |
0f113f3e MC |
320 | { |
321 | return ctx->cipher->nid; | |
322 | } | |
7806f3dd | 323 | |
0f113f3e MC |
324 | int EVP_MD_block_size(const EVP_MD *md) |
325 | { | |
326 | return md->block_size; | |
327 | } | |
7806f3dd NL |
328 | |
329 | int EVP_MD_type(const EVP_MD *md) | |
0f113f3e MC |
330 | { |
331 | return md->type; | |
332 | } | |
7806f3dd NL |
333 | |
334 | int EVP_MD_pkey_type(const EVP_MD *md) | |
0f113f3e MC |
335 | { |
336 | return md->pkey_type; | |
337 | } | |
7806f3dd | 338 | |
6343829a | 339 | int EVP_MD_size(const EVP_MD *md) |
0f113f3e MC |
340 | { |
341 | if (!md) { | |
342 | EVPerr(EVP_F_EVP_MD_SIZE, EVP_R_MESSAGE_DIGEST_IS_NULL); | |
343 | return -1; | |
344 | } | |
345 | return md->md_size; | |
346 | } | |
7806f3dd | 347 | |
e5fa864f | 348 | unsigned long EVP_MD_flags(const EVP_MD *md) |
0f113f3e MC |
349 | { |
350 | return md->flags; | |
351 | } | |
e5fa864f | 352 | |
2db6bf6f RL |
353 | EVP_MD *EVP_MD_meth_new(int md_type, int pkey_type) |
354 | { | |
355 | EVP_MD *md = (EVP_MD *)OPENSSL_zalloc(sizeof(EVP_MD)); | |
356 | if (md != NULL) { | |
357 | md->type = md_type; | |
358 | md->pkey_type = pkey_type; | |
359 | } | |
360 | return md; | |
361 | } | |
362 | EVP_MD *EVP_MD_meth_dup(const EVP_MD *md) | |
363 | { | |
364 | EVP_MD *to = EVP_MD_meth_new(md->type, md->pkey_type); | |
365 | if (md != NULL) | |
366 | memcpy(to, md, sizeof(*to)); | |
367 | return to; | |
368 | } | |
369 | void EVP_MD_meth_free(EVP_MD *md) | |
370 | { | |
371 | OPENSSL_free(md); | |
372 | } | |
373 | int EVP_MD_meth_set_input_blocksize(EVP_MD *md, int blocksize) | |
374 | { | |
375 | md->block_size = blocksize; | |
376 | return 1; | |
377 | } | |
378 | int EVP_MD_meth_set_result_size(EVP_MD *md, int resultsize) | |
379 | { | |
380 | md->md_size = resultsize; | |
381 | return 1; | |
382 | } | |
383 | int EVP_MD_meth_set_app_datasize(EVP_MD *md, int datasize) | |
384 | { | |
385 | md->ctx_size = datasize; | |
386 | return 1; | |
387 | } | |
388 | int EVP_MD_meth_set_flags(EVP_MD *md, unsigned long flags) | |
389 | { | |
390 | md->flags = flags; | |
391 | return 1; | |
392 | } | |
393 | int EVP_MD_meth_set_init(EVP_MD *md, int (*init)(EVP_MD_CTX *ctx)) | |
394 | { | |
395 | md->init = init; | |
396 | return 1; | |
397 | } | |
398 | int EVP_MD_meth_set_update(EVP_MD *md, int (*update)(EVP_MD_CTX *ctx, | |
399 | const void *data, | |
400 | size_t count)) | |
401 | { | |
402 | md->update = update; | |
403 | return 1; | |
404 | } | |
405 | int EVP_MD_meth_set_final(EVP_MD *md, int (*final)(EVP_MD_CTX *ctx, | |
406 | unsigned char *md)) | |
407 | { | |
408 | md->final = final; | |
409 | return 1; | |
410 | } | |
411 | int EVP_MD_meth_set_copy(EVP_MD *md, int (*copy)(EVP_MD_CTX *to, | |
412 | const EVP_MD_CTX *from)) | |
413 | { | |
414 | md->copy = copy; | |
415 | return 1; | |
416 | } | |
417 | int EVP_MD_meth_set_cleanup(EVP_MD *md, int (*cleanup)(EVP_MD_CTX *ctx)) | |
418 | { | |
419 | md->cleanup = cleanup; | |
420 | return 1; | |
421 | } | |
422 | int EVP_MD_meth_set_ctrl(EVP_MD *md, int (*ctrl)(EVP_MD_CTX *ctx, int cmd, | |
423 | int p1, void *p2)) | |
424 | { | |
425 | md->md_ctrl = ctrl; | |
426 | return 1; | |
427 | } | |
428 | ||
429 | int EVP_MD_meth_get_input_blocksize(const EVP_MD *md) | |
430 | { | |
431 | return md->block_size; | |
432 | } | |
433 | int EVP_MD_meth_get_result_size(const EVP_MD *md) | |
434 | { | |
435 | return md->md_size; | |
436 | } | |
437 | int EVP_MD_meth_get_app_datasize(const EVP_MD *md) | |
438 | { | |
439 | return md->ctx_size; | |
440 | } | |
441 | unsigned long EVP_MD_meth_get_flags(const EVP_MD *md) | |
442 | { | |
443 | return md->block_size; | |
444 | } | |
445 | int (*EVP_MD_meth_get_init(const EVP_MD *md))(EVP_MD_CTX *ctx) | |
446 | { | |
447 | return md->init; | |
448 | } | |
449 | int (*EVP_MD_meth_get_update(const EVP_MD *md))(EVP_MD_CTX *ctx, | |
450 | const void *data, | |
451 | size_t count) | |
452 | { | |
453 | return md->update; | |
454 | } | |
455 | int (*EVP_MD_meth_get_final(const EVP_MD *md))(EVP_MD_CTX *ctx, | |
456 | unsigned char *md) | |
457 | { | |
458 | return md->final; | |
459 | } | |
460 | int (*EVP_MD_meth_get_copy(const EVP_MD *md))(EVP_MD_CTX *to, | |
461 | const EVP_MD_CTX *from) | |
462 | { | |
463 | return md->copy; | |
464 | } | |
465 | int (*EVP_MD_meth_get_cleanup(const EVP_MD *md))(EVP_MD_CTX *ctx) | |
466 | { | |
467 | return md->cleanup; | |
468 | } | |
469 | int (*EVP_MD_meth_get_ctrl(const EVP_MD *md))(EVP_MD_CTX *ctx, int cmd, | |
470 | int p1, void *p2) | |
471 | { | |
472 | return md->md_ctrl; | |
473 | } | |
474 | ||
7806f3dd | 475 | const EVP_MD *EVP_MD_CTX_md(const EVP_MD_CTX *ctx) |
0f113f3e MC |
476 | { |
477 | if (!ctx) | |
478 | return NULL; | |
479 | return ctx->digest; | |
480 | } | |
7806f3dd | 481 | |
7638370c RL |
482 | EVP_PKEY_CTX *EVP_MD_CTX_pkey_ctx(const EVP_MD_CTX *ctx) |
483 | { | |
484 | return ctx->pctx; | |
485 | } | |
486 | ||
487 | void *EVP_MD_CTX_md_data(const EVP_MD_CTX *ctx) | |
488 | { | |
489 | return ctx->md_data; | |
490 | } | |
491 | ||
492 | int (*EVP_MD_CTX_update_fn(EVP_MD_CTX *ctx))(EVP_MD_CTX *ctx, | |
493 | const void *data, size_t count) | |
494 | { | |
495 | return ctx->update; | |
496 | } | |
497 | ||
498 | void EVP_MD_CTX_set_update_fn(EVP_MD_CTX *ctx, | |
499 | int (*update) (EVP_MD_CTX *ctx, | |
500 | const void *data, size_t count)) | |
501 | { | |
502 | ctx->update = update; | |
503 | } | |
504 | ||
7806f3dd | 505 | void EVP_MD_CTX_set_flags(EVP_MD_CTX *ctx, int flags) |
0f113f3e MC |
506 | { |
507 | ctx->flags |= flags; | |
508 | } | |
7806f3dd NL |
509 | |
510 | void EVP_MD_CTX_clear_flags(EVP_MD_CTX *ctx, int flags) | |
0f113f3e MC |
511 | { |
512 | ctx->flags &= ~flags; | |
513 | } | |
7806f3dd NL |
514 | |
515 | int EVP_MD_CTX_test_flags(const EVP_MD_CTX *ctx, int flags) | |
0f113f3e MC |
516 | { |
517 | return (ctx->flags & flags); | |
518 | } | |
e92f9f45 DSH |
519 | |
520 | void EVP_CIPHER_CTX_set_flags(EVP_CIPHER_CTX *ctx, int flags) | |
0f113f3e MC |
521 | { |
522 | ctx->flags |= flags; | |
523 | } | |
e92f9f45 DSH |
524 | |
525 | void EVP_CIPHER_CTX_clear_flags(EVP_CIPHER_CTX *ctx, int flags) | |
0f113f3e MC |
526 | { |
527 | ctx->flags &= ~flags; | |
528 | } | |
e92f9f45 DSH |
529 | |
530 | int EVP_CIPHER_CTX_test_flags(const EVP_CIPHER_CTX *ctx, int flags) | |
0f113f3e MC |
531 | { |
532 | return (ctx->flags & flags); | |
533 | } |