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62867571 | 1 | /* |
4333b89f | 2 | * Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved. |
58964a49 | 3 | * |
4a8b0c55 | 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
62867571 RS |
5 | * this file except in compliance with the License. You can obtain a copy |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
58964a49 RE |
8 | */ |
9 | ||
41bbba53 P |
10 | /* |
11 | * EVP _meth_ APIs are deprecated for public use, but still ok for | |
12 | * internal use. | |
13 | */ | |
14 | #include "internal/deprecated.h" | |
15 | ||
58964a49 | 16 | #include <stdio.h> |
b39fc560 | 17 | #include "internal/cryptlib.h" |
ec577822 BM |
18 | #include <openssl/evp.h> |
19 | #include <openssl/objects.h> | |
718b133a MC |
20 | #include <openssl/params.h> |
21 | #include <openssl/core_names.h> | |
ff64702b | 22 | #include <openssl/dh.h> |
023b188c | 23 | #include <openssl/ec.h> |
25f2138b | 24 | #include "crypto/evp.h" |
924663c3 | 25 | #include "crypto/asn1.h" |
3653d0c2 | 26 | #include "internal/provider.h" |
706457b7 | 27 | #include "evp_local.h" |
58964a49 | 28 | |
f844f9eb | 29 | #if !defined(FIPS_MODULE) |
6b691a5c | 30 | int EVP_CIPHER_param_to_asn1(EVP_CIPHER_CTX *c, ASN1_TYPE *type) |
924663c3 JZ |
31 | { |
32 | return evp_cipher_param_to_asn1_ex(c, type, NULL); | |
33 | } | |
34 | ||
35 | int EVP_CIPHER_asn1_to_param(EVP_CIPHER_CTX *c, ASN1_TYPE *type) | |
36 | { | |
37 | return evp_cipher_asn1_to_param_ex(c, type, NULL); | |
38 | } | |
39 | ||
40 | int EVP_CIPHER_get_asn1_iv(EVP_CIPHER_CTX *ctx, ASN1_TYPE *type) | |
41 | { | |
42 | int i = 0; | |
43 | unsigned int l; | |
44 | ||
45 | if (type != NULL) { | |
46 | unsigned char iv[EVP_MAX_IV_LENGTH]; | |
47 | ||
48 | l = EVP_CIPHER_CTX_iv_length(ctx); | |
49 | if (!ossl_assert(l <= sizeof(iv))) | |
50 | return -1; | |
51 | i = ASN1_TYPE_get_octetstring(type, iv, l); | |
52 | if (i != (int)l) | |
53 | return -1; | |
54 | ||
55 | if (!EVP_CipherInit_ex(ctx, NULL, NULL, NULL, iv, -1)) | |
56 | return -1; | |
57 | } | |
58 | return i; | |
59 | } | |
60 | ||
61 | int EVP_CIPHER_set_asn1_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type) | |
62 | { | |
63 | int i = 0; | |
64 | unsigned int j; | |
65 | unsigned char *oiv = NULL; | |
66 | ||
67 | if (type != NULL) { | |
68 | oiv = (unsigned char *)EVP_CIPHER_CTX_original_iv(c); | |
69 | j = EVP_CIPHER_CTX_iv_length(c); | |
70 | OPENSSL_assert(j <= sizeof(c->iv)); | |
71 | i = ASN1_TYPE_set_octetstring(type, oiv, j); | |
72 | } | |
73 | return i; | |
74 | } | |
75 | ||
76 | int evp_cipher_param_to_asn1_ex(EVP_CIPHER_CTX *c, ASN1_TYPE *type, | |
77 | evp_cipher_aead_asn1_params *asn1_params) | |
0f113f3e | 78 | { |
c96399e2 | 79 | int ret = -1; /* Assume the worst */ |
718b133a | 80 | const EVP_CIPHER *cipher = c->cipher; |
0f113f3e | 81 | |
c96399e2 RL |
82 | /* |
83 | * For legacy implementations, we detect custom AlgorithmIdentifier | |
84 | * parameter handling by checking if the function pointer | |
85 | * cipher->set_asn1_parameters is set. We know that this pointer | |
86 | * is NULL for provided implementations. | |
87 | * | |
88 | * Otherwise, for any implementation, we check the flag | |
89 | * EVP_CIPH_FLAG_CUSTOM_ASN1. If it isn't set, we apply | |
90 | * default AI parameter extraction. | |
91 | * | |
92 | * Otherwise, for provided implementations, we convert |type| to | |
93 | * a DER encoded blob and pass to the implementation in OSSL_PARAM | |
94 | * form. | |
95 | * | |
96 | * If none of the above applies, this operation is unsupported. | |
97 | */ | |
98 | if (cipher->set_asn1_parameters != NULL) { | |
718b133a | 99 | ret = cipher->set_asn1_parameters(c, type); |
c96399e2 | 100 | } else if ((EVP_CIPHER_flags(cipher) & EVP_CIPH_FLAG_CUSTOM_ASN1) == 0) { |
718b133a | 101 | switch (EVP_CIPHER_mode(cipher)) { |
2acdef5e | 102 | case EVP_CIPH_WRAP_MODE: |
c96399e2 | 103 | if (EVP_CIPHER_is_a(cipher, SN_id_smime_alg_CMS3DESwrap)) |
4ec36aff | 104 | ASN1_TYPE_set(type, V_ASN1_NULL, NULL); |
0f113f3e | 105 | ret = 1; |
2acdef5e DSH |
106 | break; |
107 | ||
108 | case EVP_CIPH_GCM_MODE: | |
924663c3 JZ |
109 | ret = evp_cipher_set_asn1_aead_params(c, type, asn1_params); |
110 | break; | |
111 | ||
2acdef5e DSH |
112 | case EVP_CIPH_CCM_MODE: |
113 | case EVP_CIPH_XTS_MODE: | |
114 | case EVP_CIPH_OCB_MODE: | |
49c9c1b3 | 115 | ret = -2; |
2acdef5e DSH |
116 | break; |
117 | ||
118 | default: | |
0f113f3e | 119 | ret = EVP_CIPHER_set_asn1_iv(c, type); |
2acdef5e | 120 | } |
c96399e2 RL |
121 | } else if (cipher->prov != NULL) { |
122 | OSSL_PARAM params[3], *p = params; | |
123 | unsigned char *der = NULL, *derp; | |
124 | ||
125 | /* | |
126 | * We make two passes, the first to get the appropriate buffer size, | |
127 | * and the second to get the actual value. | |
128 | */ | |
129 | *p++ = OSSL_PARAM_construct_octet_string(OSSL_CIPHER_PARAM_ALG_ID, | |
130 | NULL, 0); | |
131 | *p = OSSL_PARAM_construct_end(); | |
132 | ||
133 | if (!EVP_CIPHER_CTX_get_params(c, params)) | |
134 | goto err; | |
135 | ||
136 | /* ... but, we should get a return size too! */ | |
99ea4f02 P |
137 | if (OSSL_PARAM_modified(params) |
138 | && params[0].return_size != 0 | |
c96399e2 RL |
139 | && (der = OPENSSL_malloc(params[0].return_size)) != NULL) { |
140 | params[0].data = der; | |
141 | params[0].data_size = params[0].return_size; | |
99ea4f02 | 142 | OSSL_PARAM_set_all_unmodified(params); |
c96399e2 RL |
143 | derp = der; |
144 | if (EVP_CIPHER_CTX_get_params(c, params) | |
99ea4f02 | 145 | && OSSL_PARAM_modified(params) |
c96399e2 RL |
146 | && d2i_ASN1_TYPE(&type, (const unsigned char **)&derp, |
147 | params[0].return_size) != NULL) { | |
148 | ret = 1; | |
149 | } | |
150 | OPENSSL_free(der); | |
151 | } | |
152 | } else { | |
153 | ret = -2; | |
154 | } | |
155 | ||
156 | err: | |
51ba9ebd | 157 | if (ret == -2) |
9311d0c4 | 158 | ERR_raise(ERR_LIB_EVP, EVP_R_UNSUPPORTED_CIPHER); |
51ba9ebd | 159 | else if (ret <= 0) |
9311d0c4 | 160 | ERR_raise(ERR_LIB_EVP, EVP_R_CIPHER_PARAMETER_ERROR); |
49c9c1b3 DO |
161 | if (ret < -1) |
162 | ret = -1; | |
26a7d938 | 163 | return ret; |
0f113f3e | 164 | } |
58964a49 | 165 | |
924663c3 JZ |
166 | int evp_cipher_asn1_to_param_ex(EVP_CIPHER_CTX *c, ASN1_TYPE *type, |
167 | evp_cipher_aead_asn1_params *asn1_params) | |
0f113f3e | 168 | { |
c96399e2 | 169 | int ret = -1; /* Assume the worst */ |
718b133a MC |
170 | const EVP_CIPHER *cipher = c->cipher; |
171 | ||
c96399e2 RL |
172 | /* |
173 | * For legacy implementations, we detect custom AlgorithmIdentifier | |
174 | * parameter handling by checking if there the function pointer | |
175 | * cipher->get_asn1_parameters is set. We know that this pointer | |
176 | * is NULL for provided implementations. | |
177 | * | |
178 | * Otherwise, for any implementation, we check the flag | |
179 | * EVP_CIPH_FLAG_CUSTOM_ASN1. If it isn't set, we apply | |
180 | * default AI parameter creation. | |
181 | * | |
182 | * Otherwise, for provided implementations, we get the AI parameter | |
183 | * in DER encoded form from the implementation by requesting the | |
184 | * appropriate OSSL_PARAM and converting the result to a ASN1_TYPE. | |
185 | * | |
186 | * If none of the above applies, this operation is unsupported. | |
187 | */ | |
188 | if (cipher->get_asn1_parameters != NULL) { | |
718b133a | 189 | ret = cipher->get_asn1_parameters(c, type); |
c96399e2 | 190 | } else if ((EVP_CIPHER_flags(cipher) & EVP_CIPH_FLAG_CUSTOM_ASN1) == 0) { |
718b133a | 191 | switch (EVP_CIPHER_mode(cipher)) { |
2acdef5e DSH |
192 | case EVP_CIPH_WRAP_MODE: |
193 | ret = 1; | |
194 | break; | |
195 | ||
196 | case EVP_CIPH_GCM_MODE: | |
924663c3 JZ |
197 | ret = evp_cipher_get_asn1_aead_params(c, type, asn1_params); |
198 | break; | |
199 | ||
2acdef5e DSH |
200 | case EVP_CIPH_CCM_MODE: |
201 | case EVP_CIPH_XTS_MODE: | |
202 | case EVP_CIPH_OCB_MODE: | |
49c9c1b3 | 203 | ret = -2; |
2acdef5e DSH |
204 | break; |
205 | ||
206 | default: | |
207 | ret = EVP_CIPHER_get_asn1_iv(c, type); | |
2acdef5e | 208 | } |
c96399e2 RL |
209 | } else if (cipher->prov != NULL) { |
210 | OSSL_PARAM params[3], *p = params; | |
211 | unsigned char *der = NULL; | |
212 | int derl = -1; | |
213 | ||
214 | if ((derl = i2d_ASN1_TYPE(type, &der)) >= 0) { | |
215 | *p++ = | |
216 | OSSL_PARAM_construct_octet_string(OSSL_CIPHER_PARAM_ALG_ID, | |
217 | der, (size_t)derl); | |
218 | *p = OSSL_PARAM_construct_end(); | |
219 | if (EVP_CIPHER_CTX_set_params(c, params)) | |
220 | ret = 1; | |
221 | OPENSSL_free(der); | |
222 | } | |
223 | } else { | |
224 | ret = -2; | |
225 | } | |
226 | ||
51ba9ebd | 227 | if (ret == -2) |
9311d0c4 | 228 | ERR_raise(ERR_LIB_EVP, EVP_R_UNSUPPORTED_CIPHER); |
51ba9ebd | 229 | else if (ret <= 0) |
9311d0c4 | 230 | ERR_raise(ERR_LIB_EVP, EVP_R_CIPHER_PARAMETER_ERROR); |
49c9c1b3 DO |
231 | if (ret < -1) |
232 | ret = -1; | |
26a7d938 | 233 | return ret; |
0f113f3e | 234 | } |
58964a49 | 235 | |
924663c3 JZ |
236 | int evp_cipher_get_asn1_aead_params(EVP_CIPHER_CTX *c, ASN1_TYPE *type, |
237 | evp_cipher_aead_asn1_params *asn1_params) | |
0f113f3e MC |
238 | { |
239 | int i = 0; | |
924663c3 JZ |
240 | long tl; |
241 | unsigned char iv[EVP_MAX_IV_LENGTH]; | |
0f113f3e | 242 | |
924663c3 JZ |
243 | if (type == NULL || asn1_params == NULL) |
244 | return 0; | |
718b133a | 245 | |
924663c3 JZ |
246 | i = asn1_type_get_octetstring_int(type, &tl, NULL, EVP_MAX_IV_LENGTH); |
247 | if (i <= 0) | |
248 | return -1; | |
249 | asn1_type_get_octetstring_int(type, &tl, iv, i); | |
250 | ||
251 | memcpy(asn1_params->iv, iv, i); | |
252 | asn1_params->iv_len = i; | |
718b133a | 253 | |
26a7d938 | 254 | return i; |
0f113f3e | 255 | } |
58964a49 | 256 | |
924663c3 JZ |
257 | int evp_cipher_set_asn1_aead_params(EVP_CIPHER_CTX *c, ASN1_TYPE *type, |
258 | evp_cipher_aead_asn1_params *asn1_params) | |
0f113f3e | 259 | { |
924663c3 JZ |
260 | if (type == NULL || asn1_params == NULL) |
261 | return 0; | |
0f113f3e | 262 | |
924663c3 JZ |
263 | return asn1_type_set_octetstring_int(type, asn1_params->tag_len, |
264 | asn1_params->iv, asn1_params->iv_len); | |
0f113f3e | 265 | } |
f844f9eb | 266 | #endif /* !defined(FIPS_MODULE) */ |
884e8ec6 DSH |
267 | |
268 | /* Convert the various cipher NIDs and dummies to a proper OID NID */ | |
84fa704c | 269 | int EVP_CIPHER_type(const EVP_CIPHER *ctx) |
884e8ec6 | 270 | { |
0f113f3e | 271 | int nid; |
0f113f3e | 272 | nid = EVP_CIPHER_nid(ctx); |
884e8ec6 | 273 | |
0f113f3e | 274 | switch (nid) { |
884e8ec6 | 275 | |
0f113f3e MC |
276 | case NID_rc2_cbc: |
277 | case NID_rc2_64_cbc: | |
278 | case NID_rc2_40_cbc: | |
884e8ec6 | 279 | |
0f113f3e | 280 | return NID_rc2_cbc; |
884e8ec6 | 281 | |
0f113f3e MC |
282 | case NID_rc4: |
283 | case NID_rc4_40: | |
884e8ec6 | 284 | |
0f113f3e | 285 | return NID_rc4; |
884e8ec6 | 286 | |
0f113f3e MC |
287 | case NID_aes_128_cfb128: |
288 | case NID_aes_128_cfb8: | |
289 | case NID_aes_128_cfb1: | |
8d1ebe0b | 290 | |
0f113f3e | 291 | return NID_aes_128_cfb128; |
8d1ebe0b | 292 | |
0f113f3e MC |
293 | case NID_aes_192_cfb128: |
294 | case NID_aes_192_cfb8: | |
295 | case NID_aes_192_cfb1: | |
8d1ebe0b | 296 | |
0f113f3e | 297 | return NID_aes_192_cfb128; |
8d1ebe0b | 298 | |
0f113f3e MC |
299 | case NID_aes_256_cfb128: |
300 | case NID_aes_256_cfb8: | |
301 | case NID_aes_256_cfb1: | |
8d1ebe0b | 302 | |
0f113f3e | 303 | return NID_aes_256_cfb128; |
8d1ebe0b | 304 | |
0f113f3e MC |
305 | case NID_des_cfb64: |
306 | case NID_des_cfb8: | |
307 | case NID_des_cfb1: | |
8d1ebe0b | 308 | |
0f113f3e | 309 | return NID_des_cfb64; |
8d1ebe0b | 310 | |
0f113f3e MC |
311 | case NID_des_ede3_cfb64: |
312 | case NID_des_ede3_cfb8: | |
313 | case NID_des_ede3_cfb1: | |
7e765bf2 | 314 | |
0f113f3e | 315 | return NID_des_cfb64; |
7e765bf2 | 316 | |
0f113f3e | 317 | default: |
f844f9eb | 318 | #ifdef FIPS_MODULE |
319e518a MC |
319 | return NID_undef; |
320 | #else | |
321 | { | |
322 | /* Check it has an OID and it is valid */ | |
323 | ASN1_OBJECT *otmp = OBJ_nid2obj(nid); | |
324 | ||
325 | if (OBJ_get0_data(otmp) == NULL) | |
326 | nid = NID_undef; | |
327 | ASN1_OBJECT_free(otmp); | |
328 | return nid; | |
329 | } | |
330 | #endif | |
0f113f3e | 331 | } |
884e8ec6 DSH |
332 | } |
333 | ||
3c957bcd | 334 | int evp_cipher_cache_constants(EVP_CIPHER *cipher) |
0f113f3e | 335 | { |
a054d15c | 336 | int ok, aead = 0, custom_iv = 0, cts = 0, multiblock = 0; |
3c957bcd SL |
337 | size_t ivlen = 0; |
338 | size_t blksz = 0; | |
339 | size_t keylen = 0; | |
340 | unsigned int mode = 0; | |
a054d15c | 341 | OSSL_PARAM params[9]; |
3c957bcd SL |
342 | |
343 | params[0] = OSSL_PARAM_construct_size_t(OSSL_CIPHER_PARAM_BLOCK_SIZE, &blksz); | |
344 | params[1] = OSSL_PARAM_construct_size_t(OSSL_CIPHER_PARAM_IVLEN, &ivlen); | |
345 | params[2] = OSSL_PARAM_construct_size_t(OSSL_CIPHER_PARAM_KEYLEN, &keylen); | |
346 | params[3] = OSSL_PARAM_construct_uint(OSSL_CIPHER_PARAM_MODE, &mode); | |
a054d15c SL |
347 | params[4] = OSSL_PARAM_construct_int(OSSL_CIPHER_PARAM_AEAD, &aead); |
348 | params[5] = OSSL_PARAM_construct_int(OSSL_CIPHER_PARAM_CUSTOM_IV, | |
349 | &custom_iv); | |
350 | params[6] = OSSL_PARAM_construct_int(OSSL_CIPHER_PARAM_CTS, &cts); | |
351 | params[7] = OSSL_PARAM_construct_int(OSSL_CIPHER_PARAM_TLS1_MULTIBLOCK, | |
352 | &multiblock); | |
353 | params[8] = OSSL_PARAM_construct_end(); | |
459b15d4 | 354 | ok = evp_do_ciph_getparams(cipher, params); |
3c957bcd | 355 | if (ok) { |
3c957bcd SL |
356 | cipher->block_size = blksz; |
357 | cipher->iv_len = ivlen; | |
358 | cipher->key_len = keylen; | |
a054d15c SL |
359 | cipher->flags = mode; |
360 | if (aead) | |
361 | cipher->flags |= EVP_CIPH_FLAG_AEAD_CIPHER; | |
362 | if (custom_iv) | |
363 | cipher->flags |= EVP_CIPH_CUSTOM_IV; | |
364 | if (cts) | |
365 | cipher->flags |= EVP_CIPH_FLAG_CTS; | |
366 | if (multiblock) | |
367 | cipher->flags |= EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK; | |
368 | /* Provided implementations may have a custom cipher_cipher */ | |
369 | if (cipher->prov != NULL && cipher->ccipher != NULL) | |
370 | cipher->flags |= EVP_CIPH_FLAG_CUSTOM_CIPHER; | |
3c957bcd SL |
371 | } |
372 | return ok; | |
373 | } | |
13273237 | 374 | |
3c957bcd SL |
375 | int EVP_CIPHER_block_size(const EVP_CIPHER *cipher) |
376 | { | |
377 | return cipher->block_size; | |
0f113f3e | 378 | } |
7806f3dd | 379 | |
6343829a | 380 | int EVP_CIPHER_CTX_block_size(const EVP_CIPHER_CTX *ctx) |
0f113f3e | 381 | { |
718b133a | 382 | return EVP_CIPHER_block_size(ctx->cipher); |
0f113f3e | 383 | } |
7806f3dd | 384 | |
e79f8773 RL |
385 | int EVP_CIPHER_impl_ctx_size(const EVP_CIPHER *e) |
386 | { | |
387 | return e->ctx_size; | |
388 | } | |
389 | ||
0f113f3e MC |
390 | int EVP_Cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, |
391 | const unsigned char *in, unsigned int inl) | |
392 | { | |
718b133a | 393 | if (ctx->cipher->prov != NULL) { |
f7397f0d RL |
394 | /* |
395 | * If the provided implementation has a ccipher function, we use it, | |
396 | * and translate its return value like this: 0 => -1, 1 => outlen | |
397 | * | |
398 | * Otherwise, we call the cupdate function if in != NULL, or cfinal | |
399 | * if in == NULL. Regardless of which, we return what we got. | |
400 | */ | |
401 | int ret = -1; | |
402 | size_t outl = 0; | |
403 | size_t blocksize = EVP_CIPHER_CTX_block_size(ctx); | |
f79858ac | 404 | |
718b133a | 405 | if (ctx->cipher->ccipher != NULL) |
f7397f0d RL |
406 | ret = ctx->cipher->ccipher(ctx->provctx, out, &outl, |
407 | inl + (blocksize == 1 ? 0 : blocksize), | |
408 | in, (size_t)inl) | |
409 | ? (int)outl : -1; | |
410 | else if (in != NULL) | |
411 | ret = ctx->cipher->cupdate(ctx->provctx, out, &outl, | |
412 | inl + (blocksize == 1 ? 0 : blocksize), | |
413 | in, (size_t)inl); | |
414 | else | |
415 | ret = ctx->cipher->cfinal(ctx->provctx, out, &outl, | |
416 | blocksize == 1 ? 0 : blocksize); | |
417 | ||
418 | return ret; | |
718b133a MC |
419 | } |
420 | ||
0f113f3e MC |
421 | return ctx->cipher->do_cipher(ctx, out, in, inl); |
422 | } | |
7806f3dd NL |
423 | |
424 | const EVP_CIPHER *EVP_CIPHER_CTX_cipher(const EVP_CIPHER_CTX *ctx) | |
0f113f3e MC |
425 | { |
426 | return ctx->cipher; | |
427 | } | |
7806f3dd | 428 | |
83b06347 RL |
429 | int EVP_CIPHER_CTX_encrypting(const EVP_CIPHER_CTX *ctx) |
430 | { | |
431 | return ctx->encrypt; | |
432 | } | |
433 | ||
7806f3dd | 434 | unsigned long EVP_CIPHER_flags(const EVP_CIPHER *cipher) |
0f113f3e | 435 | { |
3c957bcd | 436 | return cipher->flags; |
0f113f3e | 437 | } |
7806f3dd | 438 | |
7806f3dd | 439 | void *EVP_CIPHER_CTX_get_app_data(const EVP_CIPHER_CTX *ctx) |
0f113f3e MC |
440 | { |
441 | return ctx->app_data; | |
442 | } | |
7806f3dd NL |
443 | |
444 | void EVP_CIPHER_CTX_set_app_data(EVP_CIPHER_CTX *ctx, void *data) | |
0f113f3e MC |
445 | { |
446 | ctx->app_data = data; | |
447 | } | |
7806f3dd | 448 | |
44ab2dfd | 449 | void *EVP_CIPHER_CTX_get_cipher_data(const EVP_CIPHER_CTX *ctx) |
83b06347 RL |
450 | { |
451 | return ctx->cipher_data; | |
452 | } | |
453 | ||
98ee7543 MC |
454 | void *EVP_CIPHER_CTX_set_cipher_data(EVP_CIPHER_CTX *ctx, void *cipher_data) |
455 | { | |
456 | void *old_cipher_data; | |
457 | ||
458 | old_cipher_data = ctx->cipher_data; | |
459 | ctx->cipher_data = cipher_data; | |
460 | ||
461 | return old_cipher_data; | |
462 | } | |
463 | ||
6343829a | 464 | int EVP_CIPHER_iv_length(const EVP_CIPHER *cipher) |
0f113f3e | 465 | { |
3c957bcd | 466 | return cipher->iv_len; |
0f113f3e | 467 | } |
7806f3dd | 468 | |
6343829a | 469 | int EVP_CIPHER_CTX_iv_length(const EVP_CIPHER_CTX *ctx) |
0f113f3e | 470 | { |
88d87082 SL |
471 | int rv, len = EVP_CIPHER_iv_length(ctx->cipher); |
472 | size_t v = len; | |
a672a02a SL |
473 | OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END }; |
474 | ||
1c3ace68 | 475 | params[0] = OSSL_PARAM_construct_size_t(OSSL_CIPHER_PARAM_IVLEN, &v); |
7dddf2fc SL |
476 | rv = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params); |
477 | if (rv == EVP_CTRL_RET_UNSUPPORTED) | |
478 | goto legacy; | |
1c3ace68 | 479 | return rv != 0 ? (int)v : -1; |
7dddf2fc SL |
480 | /* TODO (3.0) Remove legacy support */ |
481 | legacy: | |
482 | if ((EVP_CIPHER_flags(ctx->cipher) & EVP_CIPH_CUSTOM_IV_LENGTH) != 0) { | |
483 | rv = EVP_CIPHER_CTX_ctrl((EVP_CIPHER_CTX *)ctx, EVP_CTRL_GET_IVLEN, | |
484 | 0, &len); | |
88d87082 | 485 | return (rv == 1) ? len : -1; |
7dddf2fc | 486 | } |
88d87082 | 487 | return len; |
0f113f3e | 488 | } |
7806f3dd | 489 | |
dc64dc2e SL |
490 | int EVP_CIPHER_CTX_tag_length(const EVP_CIPHER_CTX *ctx) |
491 | { | |
492 | int ret; | |
493 | size_t v = 0; | |
494 | OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END }; | |
495 | ||
496 | params[0] = OSSL_PARAM_construct_size_t(OSSL_CIPHER_PARAM_AEAD_TAGLEN, &v); | |
497 | ret = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params); | |
498 | return ret == 1 ? (int)v : 0; | |
499 | } | |
500 | ||
79f4417e | 501 | #ifndef OPENSSL_NO_DEPRECATED_3_0 |
83b06347 RL |
502 | const unsigned char *EVP_CIPHER_CTX_original_iv(const EVP_CIPHER_CTX *ctx) |
503 | { | |
089cb623 SL |
504 | int ok; |
505 | const unsigned char *v = ctx->oiv; | |
506 | OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END }; | |
507 | ||
508 | params[0] = | |
509 | OSSL_PARAM_construct_octet_ptr(OSSL_CIPHER_PARAM_IV, | |
510 | (void **)&v, sizeof(ctx->oiv)); | |
511 | ok = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params); | |
512 | ||
513 | return ok != 0 ? v : NULL; | |
83b06347 RL |
514 | } |
515 | ||
13273237 RL |
516 | /* |
517 | * OSSL_PARAM_OCTET_PTR gets us the pointer to the running IV in the provider | |
518 | */ | |
83b06347 RL |
519 | const unsigned char *EVP_CIPHER_CTX_iv(const EVP_CIPHER_CTX *ctx) |
520 | { | |
459b15d4 | 521 | int ok; |
13273237 | 522 | const unsigned char *v = ctx->iv; |
459b15d4 | 523 | OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END }; |
13273237 | 524 | |
459b15d4 | 525 | params[0] = |
0d83b7b9 TM |
526 | OSSL_PARAM_construct_octet_ptr(OSSL_CIPHER_PARAM_UPDATED_IV, |
527 | (void **)&v, sizeof(ctx->iv)); | |
459b15d4 SL |
528 | ok = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params); |
529 | ||
530 | return ok != 0 ? v : NULL; | |
83b06347 RL |
531 | } |
532 | ||
533 | unsigned char *EVP_CIPHER_CTX_iv_noconst(EVP_CIPHER_CTX *ctx) | |
534 | { | |
459b15d4 | 535 | int ok; |
13273237 | 536 | unsigned char *v = ctx->iv; |
459b15d4 SL |
537 | OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END }; |
538 | ||
539 | params[0] = | |
0d83b7b9 TM |
540 | OSSL_PARAM_construct_octet_ptr(OSSL_CIPHER_PARAM_UPDATED_IV, |
541 | (void **)&v, sizeof(ctx->iv)); | |
459b15d4 | 542 | ok = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params); |
13273237 | 543 | |
459b15d4 | 544 | return ok != 0 ? v : NULL; |
83b06347 | 545 | } |
79f4417e BK |
546 | #endif /* OPENSSL_NO_DEPRECATED_3_0_0 */ |
547 | ||
0d83b7b9 | 548 | int EVP_CIPHER_CTX_get_updated_iv(EVP_CIPHER_CTX *ctx, void *buf, size_t len) |
79f4417e BK |
549 | { |
550 | OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END }; | |
551 | ||
552 | params[0] = | |
0d83b7b9 | 553 | OSSL_PARAM_construct_octet_string(OSSL_CIPHER_PARAM_UPDATED_IV, buf, len); |
79f4417e BK |
554 | return evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params); |
555 | } | |
556 | ||
0d83b7b9 | 557 | int EVP_CIPHER_CTX_get_original_iv(EVP_CIPHER_CTX *ctx, void *buf, size_t len) |
79f4417e BK |
558 | { |
559 | OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END }; | |
560 | ||
561 | params[0] = | |
562 | OSSL_PARAM_construct_octet_string(OSSL_CIPHER_PARAM_IV, buf, len); | |
563 | return evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params); | |
564 | } | |
83b06347 RL |
565 | |
566 | unsigned char *EVP_CIPHER_CTX_buf_noconst(EVP_CIPHER_CTX *ctx) | |
567 | { | |
568 | return ctx->buf; | |
569 | } | |
570 | ||
571 | int EVP_CIPHER_CTX_num(const EVP_CIPHER_CTX *ctx) | |
572 | { | |
1c3ace68 SL |
573 | int ok; |
574 | unsigned int v = (unsigned int)ctx->num; | |
459b15d4 | 575 | OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END }; |
13273237 | 576 | |
1c3ace68 | 577 | params[0] = OSSL_PARAM_construct_uint(OSSL_CIPHER_PARAM_NUM, &v); |
459b15d4 SL |
578 | ok = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params); |
579 | ||
1c3ace68 | 580 | return ok != 0 ? (int)v : EVP_CTRL_RET_UNSUPPORTED; |
83b06347 RL |
581 | } |
582 | ||
13273237 | 583 | int EVP_CIPHER_CTX_set_num(EVP_CIPHER_CTX *ctx, int num) |
83b06347 | 584 | { |
459b15d4 | 585 | int ok; |
1c3ace68 | 586 | unsigned int n = (unsigned int)num; |
459b15d4 | 587 | OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END }; |
13273237 | 588 | |
1c3ace68 | 589 | params[0] = OSSL_PARAM_construct_uint(OSSL_CIPHER_PARAM_NUM, &n); |
459b15d4 SL |
590 | ok = evp_do_ciph_ctx_setparams(ctx->cipher, ctx->provctx, params); |
591 | ||
592 | if (ok != 0) | |
1c3ace68 | 593 | ctx->num = (int)n; |
13273237 | 594 | return ok != 0; |
83b06347 RL |
595 | } |
596 | ||
6343829a | 597 | int EVP_CIPHER_key_length(const EVP_CIPHER *cipher) |
0f113f3e | 598 | { |
3c957bcd | 599 | return cipher->key_len; |
0f113f3e | 600 | } |
7806f3dd | 601 | |
6343829a | 602 | int EVP_CIPHER_CTX_key_length(const EVP_CIPHER_CTX *ctx) |
0f113f3e | 603 | { |
1c3ace68 SL |
604 | int ok; |
605 | size_t v = ctx->key_len; | |
459b15d4 SL |
606 | OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END }; |
607 | ||
1c3ace68 | 608 | params[0] = OSSL_PARAM_construct_size_t(OSSL_CIPHER_PARAM_KEYLEN, &v); |
459b15d4 | 609 | ok = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params); |
13273237 | 610 | |
1c3ace68 | 611 | return ok != 0 ? (int)v : EVP_CTRL_RET_UNSUPPORTED; |
0f113f3e | 612 | } |
7806f3dd NL |
613 | |
614 | int EVP_CIPHER_nid(const EVP_CIPHER *cipher) | |
0f113f3e MC |
615 | { |
616 | return cipher->nid; | |
617 | } | |
7806f3dd NL |
618 | |
619 | int EVP_CIPHER_CTX_nid(const EVP_CIPHER_CTX *ctx) | |
0f113f3e MC |
620 | { |
621 | return ctx->cipher->nid; | |
622 | } | |
7806f3dd | 623 | |
7cfa1717 RL |
624 | int EVP_CIPHER_is_a(const EVP_CIPHER *cipher, const char *name) |
625 | { | |
e4a1d023 RL |
626 | if (cipher->prov != NULL) |
627 | return evp_is_a(cipher->prov, cipher->name_id, NULL, name); | |
628 | return evp_is_a(NULL, 0, EVP_CIPHER_name(cipher), name); | |
7cfa1717 RL |
629 | } |
630 | ||
506cb0f6 RL |
631 | int EVP_CIPHER_number(const EVP_CIPHER *cipher) |
632 | { | |
633 | return cipher->name_id; | |
634 | } | |
635 | ||
c750bc08 RL |
636 | const char *EVP_CIPHER_name(const EVP_CIPHER *cipher) |
637 | { | |
638 | if (cipher->prov != NULL) | |
f7c16d48 | 639 | return evp_first_name(cipher->prov, cipher->name_id); |
f844f9eb | 640 | #ifndef FIPS_MODULE |
c750bc08 RL |
641 | return OBJ_nid2sn(EVP_CIPHER_nid(cipher)); |
642 | #else | |
643 | return NULL; | |
644 | #endif | |
645 | } | |
646 | ||
f651c727 RL |
647 | void EVP_CIPHER_names_do_all(const EVP_CIPHER *cipher, |
648 | void (*fn)(const char *name, void *data), | |
649 | void *data) | |
650 | { | |
651 | if (cipher->prov != NULL) | |
652 | evp_names_do_all(cipher->prov, cipher->name_id, fn, data); | |
653 | } | |
654 | ||
1d2622d4 RL |
655 | const OSSL_PROVIDER *EVP_CIPHER_provider(const EVP_CIPHER *cipher) |
656 | { | |
657 | return cipher->prov; | |
658 | } | |
659 | ||
718b133a MC |
660 | int EVP_CIPHER_mode(const EVP_CIPHER *cipher) |
661 | { | |
3c957bcd | 662 | return EVP_CIPHER_flags(cipher) & EVP_CIPH_MODE; |
459b15d4 | 663 | } |
718b133a | 664 | |
251e610c RL |
665 | int EVP_MD_is_a(const EVP_MD *md, const char *name) |
666 | { | |
e4a1d023 RL |
667 | if (md->prov != NULL) |
668 | return evp_is_a(md->prov, md->name_id, NULL, name); | |
669 | return evp_is_a(NULL, 0, EVP_MD_name(md), name); | |
251e610c RL |
670 | } |
671 | ||
506cb0f6 RL |
672 | int EVP_MD_number(const EVP_MD *md) |
673 | { | |
674 | return md->name_id; | |
675 | } | |
676 | ||
c750bc08 RL |
677 | const char *EVP_MD_name(const EVP_MD *md) |
678 | { | |
679 | if (md->prov != NULL) | |
f7c16d48 | 680 | return evp_first_name(md->prov, md->name_id); |
f844f9eb | 681 | #ifndef FIPS_MODULE |
c750bc08 RL |
682 | return OBJ_nid2sn(EVP_MD_nid(md)); |
683 | #else | |
684 | return NULL; | |
685 | #endif | |
686 | } | |
687 | ||
f651c727 RL |
688 | void EVP_MD_names_do_all(const EVP_MD *md, |
689 | void (*fn)(const char *name, void *data), | |
690 | void *data) | |
691 | { | |
692 | if (md->prov != NULL) | |
693 | evp_names_do_all(md->prov, md->name_id, fn, data); | |
694 | } | |
695 | ||
1d2622d4 RL |
696 | const OSSL_PROVIDER *EVP_MD_provider(const EVP_MD *md) |
697 | { | |
698 | return md->prov; | |
699 | } | |
700 | ||
7806f3dd | 701 | int EVP_MD_type(const EVP_MD *md) |
0f113f3e MC |
702 | { |
703 | return md->type; | |
704 | } | |
7806f3dd NL |
705 | |
706 | int EVP_MD_pkey_type(const EVP_MD *md) | |
0f113f3e MC |
707 | { |
708 | return md->pkey_type; | |
709 | } | |
7806f3dd | 710 | |
a054d15c SL |
711 | int EVP_MD_block_size(const EVP_MD *md) |
712 | { | |
713 | if (md == NULL) { | |
714 | ERR_raise(ERR_LIB_EVP, EVP_R_MESSAGE_DIGEST_IS_NULL); | |
715 | return -1; | |
716 | } | |
717 | return md->block_size; | |
718 | } | |
719 | ||
6343829a | 720 | int EVP_MD_size(const EVP_MD *md) |
0f113f3e | 721 | { |
6a3b7c68 | 722 | if (md == NULL) { |
9311d0c4 | 723 | ERR_raise(ERR_LIB_EVP, EVP_R_MESSAGE_DIGEST_IS_NULL); |
0f113f3e MC |
724 | return -1; |
725 | } | |
38f79314 | 726 | return md->md_size; |
0f113f3e | 727 | } |
7806f3dd | 728 | |
e5fa864f | 729 | unsigned long EVP_MD_flags(const EVP_MD *md) |
0f113f3e | 730 | { |
38f79314 | 731 | return md->flags; |
0f113f3e | 732 | } |
e5fa864f | 733 | |
2db6bf6f RL |
734 | EVP_MD *EVP_MD_meth_new(int md_type, int pkey_type) |
735 | { | |
3fd70262 | 736 | EVP_MD *md = evp_md_new(); |
43ecb9c3 | 737 | |
2db6bf6f RL |
738 | if (md != NULL) { |
739 | md->type = md_type; | |
740 | md->pkey_type = pkey_type; | |
741 | } | |
742 | return md; | |
743 | } | |
df05f2ce | 744 | |
2db6bf6f RL |
745 | EVP_MD *EVP_MD_meth_dup(const EVP_MD *md) |
746 | { | |
3fd70262 RL |
747 | EVP_MD *to = NULL; |
748 | ||
749 | /* | |
750 | * Non-legacy EVP_MDs can't be duplicated like this. | |
751 | * Use EVP_MD_up_ref() instead. | |
752 | */ | |
753 | if (md->prov != NULL) | |
754 | return NULL; | |
43ecb9c3 | 755 | |
3fd70262 | 756 | if ((to = EVP_MD_meth_new(md->type, md->pkey_type)) != NULL) { |
df05f2ce | 757 | CRYPTO_RWLOCK *lock = to->lock; |
3fd70262 | 758 | |
2db6bf6f | 759 | memcpy(to, md, sizeof(*to)); |
df05f2ce MC |
760 | to->lock = lock; |
761 | } | |
2db6bf6f RL |
762 | return to; |
763 | } | |
3653d0c2 | 764 | |
2db6bf6f RL |
765 | void EVP_MD_meth_free(EVP_MD *md) |
766 | { | |
3fd70262 | 767 | EVP_MD_free(md); |
2db6bf6f RL |
768 | } |
769 | int EVP_MD_meth_set_input_blocksize(EVP_MD *md, int blocksize) | |
770 | { | |
8bbc7f22 DB |
771 | if (md->block_size != 0) |
772 | return 0; | |
773 | ||
2db6bf6f RL |
774 | md->block_size = blocksize; |
775 | return 1; | |
776 | } | |
777 | int EVP_MD_meth_set_result_size(EVP_MD *md, int resultsize) | |
778 | { | |
8bbc7f22 DB |
779 | if (md->md_size != 0) |
780 | return 0; | |
781 | ||
2db6bf6f RL |
782 | md->md_size = resultsize; |
783 | return 1; | |
784 | } | |
785 | int EVP_MD_meth_set_app_datasize(EVP_MD *md, int datasize) | |
786 | { | |
8bbc7f22 DB |
787 | if (md->ctx_size != 0) |
788 | return 0; | |
789 | ||
2db6bf6f RL |
790 | md->ctx_size = datasize; |
791 | return 1; | |
792 | } | |
793 | int EVP_MD_meth_set_flags(EVP_MD *md, unsigned long flags) | |
794 | { | |
8bbc7f22 DB |
795 | if (md->flags != 0) |
796 | return 0; | |
797 | ||
2db6bf6f RL |
798 | md->flags = flags; |
799 | return 1; | |
800 | } | |
801 | int EVP_MD_meth_set_init(EVP_MD *md, int (*init)(EVP_MD_CTX *ctx)) | |
802 | { | |
8bbc7f22 DB |
803 | if (md->init != NULL) |
804 | return 0; | |
805 | ||
2db6bf6f RL |
806 | md->init = init; |
807 | return 1; | |
808 | } | |
809 | int EVP_MD_meth_set_update(EVP_MD *md, int (*update)(EVP_MD_CTX *ctx, | |
810 | const void *data, | |
811 | size_t count)) | |
812 | { | |
8bbc7f22 DB |
813 | if (md->update != NULL) |
814 | return 0; | |
815 | ||
2db6bf6f RL |
816 | md->update = update; |
817 | return 1; | |
818 | } | |
819 | int EVP_MD_meth_set_final(EVP_MD *md, int (*final)(EVP_MD_CTX *ctx, | |
820 | unsigned char *md)) | |
821 | { | |
8bbc7f22 DB |
822 | if (md->final != NULL) |
823 | return 0; | |
824 | ||
2db6bf6f RL |
825 | md->final = final; |
826 | return 1; | |
827 | } | |
828 | int EVP_MD_meth_set_copy(EVP_MD *md, int (*copy)(EVP_MD_CTX *to, | |
829 | const EVP_MD_CTX *from)) | |
830 | { | |
8bbc7f22 DB |
831 | if (md->copy != NULL) |
832 | return 0; | |
833 | ||
2db6bf6f RL |
834 | md->copy = copy; |
835 | return 1; | |
836 | } | |
837 | int EVP_MD_meth_set_cleanup(EVP_MD *md, int (*cleanup)(EVP_MD_CTX *ctx)) | |
838 | { | |
8bbc7f22 DB |
839 | if (md->cleanup != NULL) |
840 | return 0; | |
841 | ||
2db6bf6f RL |
842 | md->cleanup = cleanup; |
843 | return 1; | |
844 | } | |
845 | int EVP_MD_meth_set_ctrl(EVP_MD *md, int (*ctrl)(EVP_MD_CTX *ctx, int cmd, | |
846 | int p1, void *p2)) | |
847 | { | |
8bbc7f22 DB |
848 | if (md->md_ctrl != NULL) |
849 | return 0; | |
850 | ||
2db6bf6f RL |
851 | md->md_ctrl = ctrl; |
852 | return 1; | |
853 | } | |
854 | ||
855 | int EVP_MD_meth_get_input_blocksize(const EVP_MD *md) | |
856 | { | |
857 | return md->block_size; | |
858 | } | |
859 | int EVP_MD_meth_get_result_size(const EVP_MD *md) | |
860 | { | |
861 | return md->md_size; | |
862 | } | |
863 | int EVP_MD_meth_get_app_datasize(const EVP_MD *md) | |
864 | { | |
865 | return md->ctx_size; | |
866 | } | |
867 | unsigned long EVP_MD_meth_get_flags(const EVP_MD *md) | |
868 | { | |
8bfa99f0 | 869 | return md->flags; |
2db6bf6f RL |
870 | } |
871 | int (*EVP_MD_meth_get_init(const EVP_MD *md))(EVP_MD_CTX *ctx) | |
872 | { | |
873 | return md->init; | |
874 | } | |
875 | int (*EVP_MD_meth_get_update(const EVP_MD *md))(EVP_MD_CTX *ctx, | |
876 | const void *data, | |
877 | size_t count) | |
878 | { | |
879 | return md->update; | |
880 | } | |
881 | int (*EVP_MD_meth_get_final(const EVP_MD *md))(EVP_MD_CTX *ctx, | |
882 | unsigned char *md) | |
883 | { | |
884 | return md->final; | |
885 | } | |
886 | int (*EVP_MD_meth_get_copy(const EVP_MD *md))(EVP_MD_CTX *to, | |
887 | const EVP_MD_CTX *from) | |
888 | { | |
889 | return md->copy; | |
890 | } | |
891 | int (*EVP_MD_meth_get_cleanup(const EVP_MD *md))(EVP_MD_CTX *ctx) | |
892 | { | |
893 | return md->cleanup; | |
894 | } | |
895 | int (*EVP_MD_meth_get_ctrl(const EVP_MD *md))(EVP_MD_CTX *ctx, int cmd, | |
896 | int p1, void *p2) | |
897 | { | |
898 | return md->md_ctrl; | |
899 | } | |
900 | ||
7806f3dd | 901 | const EVP_MD *EVP_MD_CTX_md(const EVP_MD_CTX *ctx) |
0f113f3e | 902 | { |
b7c913c8 | 903 | if (ctx == NULL) |
0f113f3e | 904 | return NULL; |
b7c913c8 | 905 | return ctx->reqdigest; |
0f113f3e | 906 | } |
7806f3dd | 907 | |
7638370c RL |
908 | EVP_PKEY_CTX *EVP_MD_CTX_pkey_ctx(const EVP_MD_CTX *ctx) |
909 | { | |
910 | return ctx->pctx; | |
911 | } | |
912 | ||
f844f9eb | 913 | #if !defined(FIPS_MODULE) |
319e518a | 914 | /* TODO(3.0): EVP_DigestSign* not yet supported in FIPS module */ |
00902d94 PY |
915 | void EVP_MD_CTX_set_pkey_ctx(EVP_MD_CTX *ctx, EVP_PKEY_CTX *pctx) |
916 | { | |
81c79453 PY |
917 | /* |
918 | * it's reasonable to set NULL pctx (a.k.a clear the ctx->pctx), so | |
919 | * we have to deal with the cleanup job here. | |
920 | */ | |
921 | if (!EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_KEEP_PKEY_CTX)) | |
922 | EVP_PKEY_CTX_free(ctx->pctx); | |
923 | ||
00902d94 | 924 | ctx->pctx = pctx; |
81c79453 PY |
925 | |
926 | if (pctx != NULL) { | |
927 | /* make sure pctx is not freed when destroying EVP_MD_CTX */ | |
928 | EVP_MD_CTX_set_flags(ctx, EVP_MD_CTX_FLAG_KEEP_PKEY_CTX); | |
929 | } else { | |
930 | EVP_MD_CTX_clear_flags(ctx, EVP_MD_CTX_FLAG_KEEP_PKEY_CTX); | |
931 | } | |
00902d94 | 932 | } |
f844f9eb | 933 | #endif /* !defined(FIPS_MODULE) */ |
00902d94 | 934 | |
7638370c RL |
935 | void *EVP_MD_CTX_md_data(const EVP_MD_CTX *ctx) |
936 | { | |
937 | return ctx->md_data; | |
938 | } | |
939 | ||
940 | int (*EVP_MD_CTX_update_fn(EVP_MD_CTX *ctx))(EVP_MD_CTX *ctx, | |
941 | const void *data, size_t count) | |
942 | { | |
943 | return ctx->update; | |
944 | } | |
945 | ||
946 | void EVP_MD_CTX_set_update_fn(EVP_MD_CTX *ctx, | |
947 | int (*update) (EVP_MD_CTX *ctx, | |
948 | const void *data, size_t count)) | |
949 | { | |
950 | ctx->update = update; | |
951 | } | |
952 | ||
7806f3dd | 953 | void EVP_MD_CTX_set_flags(EVP_MD_CTX *ctx, int flags) |
0f113f3e MC |
954 | { |
955 | ctx->flags |= flags; | |
956 | } | |
7806f3dd NL |
957 | |
958 | void EVP_MD_CTX_clear_flags(EVP_MD_CTX *ctx, int flags) | |
0f113f3e MC |
959 | { |
960 | ctx->flags &= ~flags; | |
961 | } | |
7806f3dd NL |
962 | |
963 | int EVP_MD_CTX_test_flags(const EVP_MD_CTX *ctx, int flags) | |
0f113f3e MC |
964 | { |
965 | return (ctx->flags & flags); | |
966 | } | |
e92f9f45 DSH |
967 | |
968 | void EVP_CIPHER_CTX_set_flags(EVP_CIPHER_CTX *ctx, int flags) | |
0f113f3e MC |
969 | { |
970 | ctx->flags |= flags; | |
971 | } | |
e92f9f45 DSH |
972 | |
973 | void EVP_CIPHER_CTX_clear_flags(EVP_CIPHER_CTX *ctx, int flags) | |
0f113f3e MC |
974 | { |
975 | ctx->flags &= ~flags; | |
976 | } | |
e92f9f45 DSH |
977 | |
978 | int EVP_CIPHER_CTX_test_flags(const EVP_CIPHER_CTX *ctx, int flags) | |
0f113f3e MC |
979 | { |
980 | return (ctx->flags & flags); | |
981 | } | |
f842b6b2 | 982 | |
11a1b341 MC |
983 | int EVP_PKEY_CTX_set_group_name(EVP_PKEY_CTX *ctx, const char *name) |
984 | { | |
985 | OSSL_PARAM params[] = { OSSL_PARAM_END, OSSL_PARAM_END }; | |
023b188c | 986 | |
6fcd92d3 | 987 | if (ctx == NULL || !EVP_PKEY_CTX_IS_GEN_OP(ctx)) { |
11a1b341 MC |
988 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); |
989 | /* Uses the same return values as EVP_PKEY_CTX_ctrl */ | |
990 | return -2; | |
991 | } | |
992 | ||
993 | if (name == NULL) | |
994 | return -1; | |
995 | ||
6fcd92d3 RL |
996 | params[0] = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_GROUP_NAME, |
997 | (char *)name, 0); | |
11a1b341 MC |
998 | return EVP_PKEY_CTX_set_params(ctx, params); |
999 | } | |
1000 | ||
1001 | int EVP_PKEY_CTX_get_group_name(EVP_PKEY_CTX *ctx, char *name, size_t namelen) | |
1002 | { | |
1003 | OSSL_PARAM params[] = { OSSL_PARAM_END, OSSL_PARAM_END }; | |
1004 | OSSL_PARAM *p = params; | |
1005 | ||
1006 | if (ctx == NULL || !EVP_PKEY_CTX_IS_GEN_OP(ctx)) { | |
023b188c | 1007 | /* There is no legacy support for this */ |
11a1b341 MC |
1008 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); |
1009 | /* Uses the same return values as EVP_PKEY_CTX_ctrl */ | |
1010 | return -2; | |
1011 | } | |
1012 | ||
1013 | if (name == NULL) | |
1014 | return -1; | |
1015 | ||
1016 | *p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_GROUP_NAME, | |
1017 | name, namelen); | |
1018 | if (!EVP_PKEY_CTX_get_params(ctx, params)) | |
1019 | return -1; | |
1020 | return 1; | |
1021 | } |