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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 | { |
1c3ace68 | 336 | int ok; |
3c957bcd SL |
337 | size_t ivlen = 0; |
338 | size_t blksz = 0; | |
339 | size_t keylen = 0; | |
340 | unsigned int mode = 0; | |
341 | unsigned long flags = 0; | |
342 | OSSL_PARAM params[6]; | |
343 | ||
344 | params[0] = OSSL_PARAM_construct_size_t(OSSL_CIPHER_PARAM_BLOCK_SIZE, &blksz); | |
345 | params[1] = OSSL_PARAM_construct_size_t(OSSL_CIPHER_PARAM_IVLEN, &ivlen); | |
346 | params[2] = OSSL_PARAM_construct_size_t(OSSL_CIPHER_PARAM_KEYLEN, &keylen); | |
347 | params[3] = OSSL_PARAM_construct_uint(OSSL_CIPHER_PARAM_MODE, &mode); | |
348 | params[4] = OSSL_PARAM_construct_ulong(OSSL_CIPHER_PARAM_FLAGS, &flags); | |
349 | params[5] = OSSL_PARAM_construct_end(); | |
459b15d4 | 350 | ok = evp_do_ciph_getparams(cipher, params); |
3c957bcd SL |
351 | if (ok) { |
352 | /* Provided implementations may have a custom cipher_cipher */ | |
353 | if (cipher->prov != NULL && cipher->ccipher != NULL) | |
354 | flags |= EVP_CIPH_FLAG_CUSTOM_CIPHER; | |
355 | cipher->block_size = blksz; | |
356 | cipher->iv_len = ivlen; | |
357 | cipher->key_len = keylen; | |
358 | cipher->flags = flags | mode; | |
359 | } | |
360 | return ok; | |
361 | } | |
13273237 | 362 | |
3c957bcd SL |
363 | int EVP_CIPHER_block_size(const EVP_CIPHER *cipher) |
364 | { | |
365 | return cipher->block_size; | |
0f113f3e | 366 | } |
7806f3dd | 367 | |
6343829a | 368 | int EVP_CIPHER_CTX_block_size(const EVP_CIPHER_CTX *ctx) |
0f113f3e | 369 | { |
718b133a | 370 | return EVP_CIPHER_block_size(ctx->cipher); |
0f113f3e | 371 | } |
7806f3dd | 372 | |
e79f8773 RL |
373 | int EVP_CIPHER_impl_ctx_size(const EVP_CIPHER *e) |
374 | { | |
375 | return e->ctx_size; | |
376 | } | |
377 | ||
0f113f3e MC |
378 | int EVP_Cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, |
379 | const unsigned char *in, unsigned int inl) | |
380 | { | |
718b133a | 381 | if (ctx->cipher->prov != NULL) { |
f7397f0d RL |
382 | /* |
383 | * If the provided implementation has a ccipher function, we use it, | |
384 | * and translate its return value like this: 0 => -1, 1 => outlen | |
385 | * | |
386 | * Otherwise, we call the cupdate function if in != NULL, or cfinal | |
387 | * if in == NULL. Regardless of which, we return what we got. | |
388 | */ | |
389 | int ret = -1; | |
390 | size_t outl = 0; | |
391 | size_t blocksize = EVP_CIPHER_CTX_block_size(ctx); | |
f79858ac | 392 | |
718b133a | 393 | if (ctx->cipher->ccipher != NULL) |
f7397f0d RL |
394 | ret = ctx->cipher->ccipher(ctx->provctx, out, &outl, |
395 | inl + (blocksize == 1 ? 0 : blocksize), | |
396 | in, (size_t)inl) | |
397 | ? (int)outl : -1; | |
398 | else if (in != NULL) | |
399 | ret = ctx->cipher->cupdate(ctx->provctx, out, &outl, | |
400 | inl + (blocksize == 1 ? 0 : blocksize), | |
401 | in, (size_t)inl); | |
402 | else | |
403 | ret = ctx->cipher->cfinal(ctx->provctx, out, &outl, | |
404 | blocksize == 1 ? 0 : blocksize); | |
405 | ||
406 | return ret; | |
718b133a MC |
407 | } |
408 | ||
0f113f3e MC |
409 | return ctx->cipher->do_cipher(ctx, out, in, inl); |
410 | } | |
7806f3dd NL |
411 | |
412 | const EVP_CIPHER *EVP_CIPHER_CTX_cipher(const EVP_CIPHER_CTX *ctx) | |
0f113f3e MC |
413 | { |
414 | return ctx->cipher; | |
415 | } | |
7806f3dd | 416 | |
83b06347 RL |
417 | int EVP_CIPHER_CTX_encrypting(const EVP_CIPHER_CTX *ctx) |
418 | { | |
419 | return ctx->encrypt; | |
420 | } | |
421 | ||
7806f3dd | 422 | unsigned long EVP_CIPHER_flags(const EVP_CIPHER *cipher) |
0f113f3e | 423 | { |
3c957bcd | 424 | return cipher->flags; |
0f113f3e | 425 | } |
7806f3dd | 426 | |
7806f3dd | 427 | void *EVP_CIPHER_CTX_get_app_data(const EVP_CIPHER_CTX *ctx) |
0f113f3e MC |
428 | { |
429 | return ctx->app_data; | |
430 | } | |
7806f3dd NL |
431 | |
432 | void EVP_CIPHER_CTX_set_app_data(EVP_CIPHER_CTX *ctx, void *data) | |
0f113f3e MC |
433 | { |
434 | ctx->app_data = data; | |
435 | } | |
7806f3dd | 436 | |
44ab2dfd | 437 | void *EVP_CIPHER_CTX_get_cipher_data(const EVP_CIPHER_CTX *ctx) |
83b06347 RL |
438 | { |
439 | return ctx->cipher_data; | |
440 | } | |
441 | ||
98ee7543 MC |
442 | void *EVP_CIPHER_CTX_set_cipher_data(EVP_CIPHER_CTX *ctx, void *cipher_data) |
443 | { | |
444 | void *old_cipher_data; | |
445 | ||
446 | old_cipher_data = ctx->cipher_data; | |
447 | ctx->cipher_data = cipher_data; | |
448 | ||
449 | return old_cipher_data; | |
450 | } | |
451 | ||
6343829a | 452 | int EVP_CIPHER_iv_length(const EVP_CIPHER *cipher) |
0f113f3e | 453 | { |
3c957bcd | 454 | return cipher->iv_len; |
0f113f3e | 455 | } |
7806f3dd | 456 | |
6343829a | 457 | int EVP_CIPHER_CTX_iv_length(const EVP_CIPHER_CTX *ctx) |
0f113f3e | 458 | { |
88d87082 SL |
459 | int rv, len = EVP_CIPHER_iv_length(ctx->cipher); |
460 | size_t v = len; | |
a672a02a SL |
461 | OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END }; |
462 | ||
1c3ace68 | 463 | params[0] = OSSL_PARAM_construct_size_t(OSSL_CIPHER_PARAM_IVLEN, &v); |
7dddf2fc SL |
464 | rv = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params); |
465 | if (rv == EVP_CTRL_RET_UNSUPPORTED) | |
466 | goto legacy; | |
1c3ace68 | 467 | return rv != 0 ? (int)v : -1; |
7dddf2fc SL |
468 | /* TODO (3.0) Remove legacy support */ |
469 | legacy: | |
470 | if ((EVP_CIPHER_flags(ctx->cipher) & EVP_CIPH_CUSTOM_IV_LENGTH) != 0) { | |
471 | rv = EVP_CIPHER_CTX_ctrl((EVP_CIPHER_CTX *)ctx, EVP_CTRL_GET_IVLEN, | |
472 | 0, &len); | |
88d87082 | 473 | return (rv == 1) ? len : -1; |
7dddf2fc | 474 | } |
88d87082 | 475 | return len; |
0f113f3e | 476 | } |
7806f3dd | 477 | |
dc64dc2e SL |
478 | int EVP_CIPHER_CTX_tag_length(const EVP_CIPHER_CTX *ctx) |
479 | { | |
480 | int ret; | |
481 | size_t v = 0; | |
482 | OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END }; | |
483 | ||
484 | params[0] = OSSL_PARAM_construct_size_t(OSSL_CIPHER_PARAM_AEAD_TAGLEN, &v); | |
485 | ret = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params); | |
486 | return ret == 1 ? (int)v : 0; | |
487 | } | |
488 | ||
79f4417e | 489 | #ifndef OPENSSL_NO_DEPRECATED_3_0 |
83b06347 RL |
490 | const unsigned char *EVP_CIPHER_CTX_original_iv(const EVP_CIPHER_CTX *ctx) |
491 | { | |
089cb623 SL |
492 | int ok; |
493 | const unsigned char *v = ctx->oiv; | |
494 | OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END }; | |
495 | ||
496 | params[0] = | |
497 | OSSL_PARAM_construct_octet_ptr(OSSL_CIPHER_PARAM_IV, | |
498 | (void **)&v, sizeof(ctx->oiv)); | |
499 | ok = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params); | |
500 | ||
501 | return ok != 0 ? v : NULL; | |
83b06347 RL |
502 | } |
503 | ||
13273237 RL |
504 | /* |
505 | * OSSL_PARAM_OCTET_PTR gets us the pointer to the running IV in the provider | |
506 | */ | |
83b06347 RL |
507 | const unsigned char *EVP_CIPHER_CTX_iv(const EVP_CIPHER_CTX *ctx) |
508 | { | |
459b15d4 | 509 | int ok; |
13273237 | 510 | const unsigned char *v = ctx->iv; |
459b15d4 | 511 | OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END }; |
13273237 | 512 | |
459b15d4 | 513 | params[0] = |
0d83b7b9 TM |
514 | OSSL_PARAM_construct_octet_ptr(OSSL_CIPHER_PARAM_UPDATED_IV, |
515 | (void **)&v, sizeof(ctx->iv)); | |
459b15d4 SL |
516 | ok = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params); |
517 | ||
518 | return ok != 0 ? v : NULL; | |
83b06347 RL |
519 | } |
520 | ||
521 | unsigned char *EVP_CIPHER_CTX_iv_noconst(EVP_CIPHER_CTX *ctx) | |
522 | { | |
459b15d4 | 523 | int ok; |
13273237 | 524 | unsigned char *v = ctx->iv; |
459b15d4 SL |
525 | OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END }; |
526 | ||
527 | params[0] = | |
0d83b7b9 TM |
528 | OSSL_PARAM_construct_octet_ptr(OSSL_CIPHER_PARAM_UPDATED_IV, |
529 | (void **)&v, sizeof(ctx->iv)); | |
459b15d4 | 530 | ok = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params); |
13273237 | 531 | |
459b15d4 | 532 | return ok != 0 ? v : NULL; |
83b06347 | 533 | } |
79f4417e BK |
534 | #endif /* OPENSSL_NO_DEPRECATED_3_0_0 */ |
535 | ||
0d83b7b9 | 536 | int EVP_CIPHER_CTX_get_updated_iv(EVP_CIPHER_CTX *ctx, void *buf, size_t len) |
79f4417e BK |
537 | { |
538 | OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END }; | |
539 | ||
540 | params[0] = | |
0d83b7b9 | 541 | OSSL_PARAM_construct_octet_string(OSSL_CIPHER_PARAM_UPDATED_IV, buf, len); |
79f4417e BK |
542 | return evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params); |
543 | } | |
544 | ||
0d83b7b9 | 545 | int EVP_CIPHER_CTX_get_original_iv(EVP_CIPHER_CTX *ctx, void *buf, size_t len) |
79f4417e BK |
546 | { |
547 | OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END }; | |
548 | ||
549 | params[0] = | |
550 | OSSL_PARAM_construct_octet_string(OSSL_CIPHER_PARAM_IV, buf, len); | |
551 | return evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params); | |
552 | } | |
83b06347 RL |
553 | |
554 | unsigned char *EVP_CIPHER_CTX_buf_noconst(EVP_CIPHER_CTX *ctx) | |
555 | { | |
556 | return ctx->buf; | |
557 | } | |
558 | ||
559 | int EVP_CIPHER_CTX_num(const EVP_CIPHER_CTX *ctx) | |
560 | { | |
1c3ace68 SL |
561 | int ok; |
562 | unsigned int v = (unsigned int)ctx->num; | |
459b15d4 | 563 | OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END }; |
13273237 | 564 | |
1c3ace68 | 565 | params[0] = OSSL_PARAM_construct_uint(OSSL_CIPHER_PARAM_NUM, &v); |
459b15d4 SL |
566 | ok = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params); |
567 | ||
1c3ace68 | 568 | return ok != 0 ? (int)v : EVP_CTRL_RET_UNSUPPORTED; |
83b06347 RL |
569 | } |
570 | ||
13273237 | 571 | int EVP_CIPHER_CTX_set_num(EVP_CIPHER_CTX *ctx, int num) |
83b06347 | 572 | { |
459b15d4 | 573 | int ok; |
1c3ace68 | 574 | unsigned int n = (unsigned int)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, &n); |
459b15d4 SL |
578 | ok = evp_do_ciph_ctx_setparams(ctx->cipher, ctx->provctx, params); |
579 | ||
580 | if (ok != 0) | |
1c3ace68 | 581 | ctx->num = (int)n; |
13273237 | 582 | return ok != 0; |
83b06347 RL |
583 | } |
584 | ||
6343829a | 585 | int EVP_CIPHER_key_length(const EVP_CIPHER *cipher) |
0f113f3e | 586 | { |
3c957bcd | 587 | return cipher->key_len; |
0f113f3e | 588 | } |
7806f3dd | 589 | |
6343829a | 590 | int EVP_CIPHER_CTX_key_length(const EVP_CIPHER_CTX *ctx) |
0f113f3e | 591 | { |
1c3ace68 SL |
592 | int ok; |
593 | size_t v = ctx->key_len; | |
459b15d4 SL |
594 | OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END }; |
595 | ||
1c3ace68 | 596 | params[0] = OSSL_PARAM_construct_size_t(OSSL_CIPHER_PARAM_KEYLEN, &v); |
459b15d4 | 597 | ok = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params); |
13273237 | 598 | |
1c3ace68 | 599 | return ok != 0 ? (int)v : EVP_CTRL_RET_UNSUPPORTED; |
0f113f3e | 600 | } |
7806f3dd NL |
601 | |
602 | int EVP_CIPHER_nid(const EVP_CIPHER *cipher) | |
0f113f3e MC |
603 | { |
604 | return cipher->nid; | |
605 | } | |
7806f3dd NL |
606 | |
607 | int EVP_CIPHER_CTX_nid(const EVP_CIPHER_CTX *ctx) | |
0f113f3e MC |
608 | { |
609 | return ctx->cipher->nid; | |
610 | } | |
7806f3dd | 611 | |
7cfa1717 RL |
612 | int EVP_CIPHER_is_a(const EVP_CIPHER *cipher, const char *name) |
613 | { | |
e4a1d023 RL |
614 | if (cipher->prov != NULL) |
615 | return evp_is_a(cipher->prov, cipher->name_id, NULL, name); | |
616 | return evp_is_a(NULL, 0, EVP_CIPHER_name(cipher), name); | |
7cfa1717 RL |
617 | } |
618 | ||
506cb0f6 RL |
619 | int EVP_CIPHER_number(const EVP_CIPHER *cipher) |
620 | { | |
621 | return cipher->name_id; | |
622 | } | |
623 | ||
c750bc08 RL |
624 | const char *EVP_CIPHER_name(const EVP_CIPHER *cipher) |
625 | { | |
626 | if (cipher->prov != NULL) | |
f7c16d48 | 627 | return evp_first_name(cipher->prov, cipher->name_id); |
f844f9eb | 628 | #ifndef FIPS_MODULE |
c750bc08 RL |
629 | return OBJ_nid2sn(EVP_CIPHER_nid(cipher)); |
630 | #else | |
631 | return NULL; | |
632 | #endif | |
633 | } | |
634 | ||
f651c727 RL |
635 | void EVP_CIPHER_names_do_all(const EVP_CIPHER *cipher, |
636 | void (*fn)(const char *name, void *data), | |
637 | void *data) | |
638 | { | |
639 | if (cipher->prov != NULL) | |
640 | evp_names_do_all(cipher->prov, cipher->name_id, fn, data); | |
641 | } | |
642 | ||
1d2622d4 RL |
643 | const OSSL_PROVIDER *EVP_CIPHER_provider(const EVP_CIPHER *cipher) |
644 | { | |
645 | return cipher->prov; | |
646 | } | |
647 | ||
718b133a MC |
648 | int EVP_CIPHER_mode(const EVP_CIPHER *cipher) |
649 | { | |
3c957bcd | 650 | return EVP_CIPHER_flags(cipher) & EVP_CIPH_MODE; |
459b15d4 | 651 | } |
718b133a | 652 | |
251e610c RL |
653 | int EVP_MD_is_a(const EVP_MD *md, const char *name) |
654 | { | |
e4a1d023 RL |
655 | if (md->prov != NULL) |
656 | return evp_is_a(md->prov, md->name_id, NULL, name); | |
657 | return evp_is_a(NULL, 0, EVP_MD_name(md), name); | |
251e610c RL |
658 | } |
659 | ||
506cb0f6 RL |
660 | int EVP_MD_number(const EVP_MD *md) |
661 | { | |
662 | return md->name_id; | |
663 | } | |
664 | ||
c750bc08 RL |
665 | const char *EVP_MD_name(const EVP_MD *md) |
666 | { | |
667 | if (md->prov != NULL) | |
f7c16d48 | 668 | return evp_first_name(md->prov, md->name_id); |
f844f9eb | 669 | #ifndef FIPS_MODULE |
c750bc08 RL |
670 | return OBJ_nid2sn(EVP_MD_nid(md)); |
671 | #else | |
672 | return NULL; | |
673 | #endif | |
674 | } | |
675 | ||
f651c727 RL |
676 | void EVP_MD_names_do_all(const EVP_MD *md, |
677 | void (*fn)(const char *name, void *data), | |
678 | void *data) | |
679 | { | |
680 | if (md->prov != NULL) | |
681 | evp_names_do_all(md->prov, md->name_id, fn, data); | |
682 | } | |
683 | ||
1d2622d4 RL |
684 | const OSSL_PROVIDER *EVP_MD_provider(const EVP_MD *md) |
685 | { | |
686 | return md->prov; | |
687 | } | |
688 | ||
0f113f3e MC |
689 | int EVP_MD_block_size(const EVP_MD *md) |
690 | { | |
38f79314 | 691 | return md->block_size; |
0f113f3e | 692 | } |
7806f3dd NL |
693 | |
694 | int EVP_MD_type(const EVP_MD *md) | |
0f113f3e MC |
695 | { |
696 | return md->type; | |
697 | } | |
7806f3dd NL |
698 | |
699 | int EVP_MD_pkey_type(const EVP_MD *md) | |
0f113f3e MC |
700 | { |
701 | return md->pkey_type; | |
702 | } | |
7806f3dd | 703 | |
6343829a | 704 | int EVP_MD_size(const EVP_MD *md) |
0f113f3e | 705 | { |
6a3b7c68 | 706 | if (md == NULL) { |
9311d0c4 | 707 | ERR_raise(ERR_LIB_EVP, EVP_R_MESSAGE_DIGEST_IS_NULL); |
0f113f3e MC |
708 | return -1; |
709 | } | |
38f79314 | 710 | return md->md_size; |
0f113f3e | 711 | } |
7806f3dd | 712 | |
e5fa864f | 713 | unsigned long EVP_MD_flags(const EVP_MD *md) |
0f113f3e | 714 | { |
38f79314 | 715 | return md->flags; |
0f113f3e | 716 | } |
e5fa864f | 717 | |
2db6bf6f RL |
718 | EVP_MD *EVP_MD_meth_new(int md_type, int pkey_type) |
719 | { | |
3fd70262 | 720 | EVP_MD *md = evp_md_new(); |
43ecb9c3 | 721 | |
2db6bf6f RL |
722 | if (md != NULL) { |
723 | md->type = md_type; | |
724 | md->pkey_type = pkey_type; | |
725 | } | |
726 | return md; | |
727 | } | |
df05f2ce | 728 | |
2db6bf6f RL |
729 | EVP_MD *EVP_MD_meth_dup(const EVP_MD *md) |
730 | { | |
3fd70262 RL |
731 | EVP_MD *to = NULL; |
732 | ||
733 | /* | |
734 | * Non-legacy EVP_MDs can't be duplicated like this. | |
735 | * Use EVP_MD_up_ref() instead. | |
736 | */ | |
737 | if (md->prov != NULL) | |
738 | return NULL; | |
43ecb9c3 | 739 | |
3fd70262 | 740 | if ((to = EVP_MD_meth_new(md->type, md->pkey_type)) != NULL) { |
df05f2ce | 741 | CRYPTO_RWLOCK *lock = to->lock; |
3fd70262 | 742 | |
2db6bf6f | 743 | memcpy(to, md, sizeof(*to)); |
df05f2ce MC |
744 | to->lock = lock; |
745 | } | |
2db6bf6f RL |
746 | return to; |
747 | } | |
3653d0c2 | 748 | |
2db6bf6f RL |
749 | void EVP_MD_meth_free(EVP_MD *md) |
750 | { | |
3fd70262 | 751 | EVP_MD_free(md); |
2db6bf6f RL |
752 | } |
753 | int EVP_MD_meth_set_input_blocksize(EVP_MD *md, int blocksize) | |
754 | { | |
8bbc7f22 DB |
755 | if (md->block_size != 0) |
756 | return 0; | |
757 | ||
2db6bf6f RL |
758 | md->block_size = blocksize; |
759 | return 1; | |
760 | } | |
761 | int EVP_MD_meth_set_result_size(EVP_MD *md, int resultsize) | |
762 | { | |
8bbc7f22 DB |
763 | if (md->md_size != 0) |
764 | return 0; | |
765 | ||
2db6bf6f RL |
766 | md->md_size = resultsize; |
767 | return 1; | |
768 | } | |
769 | int EVP_MD_meth_set_app_datasize(EVP_MD *md, int datasize) | |
770 | { | |
8bbc7f22 DB |
771 | if (md->ctx_size != 0) |
772 | return 0; | |
773 | ||
2db6bf6f RL |
774 | md->ctx_size = datasize; |
775 | return 1; | |
776 | } | |
777 | int EVP_MD_meth_set_flags(EVP_MD *md, unsigned long flags) | |
778 | { | |
8bbc7f22 DB |
779 | if (md->flags != 0) |
780 | return 0; | |
781 | ||
2db6bf6f RL |
782 | md->flags = flags; |
783 | return 1; | |
784 | } | |
785 | int EVP_MD_meth_set_init(EVP_MD *md, int (*init)(EVP_MD_CTX *ctx)) | |
786 | { | |
8bbc7f22 DB |
787 | if (md->init != NULL) |
788 | return 0; | |
789 | ||
2db6bf6f RL |
790 | md->init = init; |
791 | return 1; | |
792 | } | |
793 | int EVP_MD_meth_set_update(EVP_MD *md, int (*update)(EVP_MD_CTX *ctx, | |
794 | const void *data, | |
795 | size_t count)) | |
796 | { | |
8bbc7f22 DB |
797 | if (md->update != NULL) |
798 | return 0; | |
799 | ||
2db6bf6f RL |
800 | md->update = update; |
801 | return 1; | |
802 | } | |
803 | int EVP_MD_meth_set_final(EVP_MD *md, int (*final)(EVP_MD_CTX *ctx, | |
804 | unsigned char *md)) | |
805 | { | |
8bbc7f22 DB |
806 | if (md->final != NULL) |
807 | return 0; | |
808 | ||
2db6bf6f RL |
809 | md->final = final; |
810 | return 1; | |
811 | } | |
812 | int EVP_MD_meth_set_copy(EVP_MD *md, int (*copy)(EVP_MD_CTX *to, | |
813 | const EVP_MD_CTX *from)) | |
814 | { | |
8bbc7f22 DB |
815 | if (md->copy != NULL) |
816 | return 0; | |
817 | ||
2db6bf6f RL |
818 | md->copy = copy; |
819 | return 1; | |
820 | } | |
821 | int EVP_MD_meth_set_cleanup(EVP_MD *md, int (*cleanup)(EVP_MD_CTX *ctx)) | |
822 | { | |
8bbc7f22 DB |
823 | if (md->cleanup != NULL) |
824 | return 0; | |
825 | ||
2db6bf6f RL |
826 | md->cleanup = cleanup; |
827 | return 1; | |
828 | } | |
829 | int EVP_MD_meth_set_ctrl(EVP_MD *md, int (*ctrl)(EVP_MD_CTX *ctx, int cmd, | |
830 | int p1, void *p2)) | |
831 | { | |
8bbc7f22 DB |
832 | if (md->md_ctrl != NULL) |
833 | return 0; | |
834 | ||
2db6bf6f RL |
835 | md->md_ctrl = ctrl; |
836 | return 1; | |
837 | } | |
838 | ||
839 | int EVP_MD_meth_get_input_blocksize(const EVP_MD *md) | |
840 | { | |
841 | return md->block_size; | |
842 | } | |
843 | int EVP_MD_meth_get_result_size(const EVP_MD *md) | |
844 | { | |
845 | return md->md_size; | |
846 | } | |
847 | int EVP_MD_meth_get_app_datasize(const EVP_MD *md) | |
848 | { | |
849 | return md->ctx_size; | |
850 | } | |
851 | unsigned long EVP_MD_meth_get_flags(const EVP_MD *md) | |
852 | { | |
8bfa99f0 | 853 | return md->flags; |
2db6bf6f RL |
854 | } |
855 | int (*EVP_MD_meth_get_init(const EVP_MD *md))(EVP_MD_CTX *ctx) | |
856 | { | |
857 | return md->init; | |
858 | } | |
859 | int (*EVP_MD_meth_get_update(const EVP_MD *md))(EVP_MD_CTX *ctx, | |
860 | const void *data, | |
861 | size_t count) | |
862 | { | |
863 | return md->update; | |
864 | } | |
865 | int (*EVP_MD_meth_get_final(const EVP_MD *md))(EVP_MD_CTX *ctx, | |
866 | unsigned char *md) | |
867 | { | |
868 | return md->final; | |
869 | } | |
870 | int (*EVP_MD_meth_get_copy(const EVP_MD *md))(EVP_MD_CTX *to, | |
871 | const EVP_MD_CTX *from) | |
872 | { | |
873 | return md->copy; | |
874 | } | |
875 | int (*EVP_MD_meth_get_cleanup(const EVP_MD *md))(EVP_MD_CTX *ctx) | |
876 | { | |
877 | return md->cleanup; | |
878 | } | |
879 | int (*EVP_MD_meth_get_ctrl(const EVP_MD *md))(EVP_MD_CTX *ctx, int cmd, | |
880 | int p1, void *p2) | |
881 | { | |
882 | return md->md_ctrl; | |
883 | } | |
884 | ||
7806f3dd | 885 | const EVP_MD *EVP_MD_CTX_md(const EVP_MD_CTX *ctx) |
0f113f3e | 886 | { |
b7c913c8 | 887 | if (ctx == NULL) |
0f113f3e | 888 | return NULL; |
b7c913c8 | 889 | return ctx->reqdigest; |
0f113f3e | 890 | } |
7806f3dd | 891 | |
7638370c RL |
892 | EVP_PKEY_CTX *EVP_MD_CTX_pkey_ctx(const EVP_MD_CTX *ctx) |
893 | { | |
894 | return ctx->pctx; | |
895 | } | |
896 | ||
f844f9eb | 897 | #if !defined(FIPS_MODULE) |
319e518a | 898 | /* TODO(3.0): EVP_DigestSign* not yet supported in FIPS module */ |
00902d94 PY |
899 | void EVP_MD_CTX_set_pkey_ctx(EVP_MD_CTX *ctx, EVP_PKEY_CTX *pctx) |
900 | { | |
81c79453 PY |
901 | /* |
902 | * it's reasonable to set NULL pctx (a.k.a clear the ctx->pctx), so | |
903 | * we have to deal with the cleanup job here. | |
904 | */ | |
905 | if (!EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_KEEP_PKEY_CTX)) | |
906 | EVP_PKEY_CTX_free(ctx->pctx); | |
907 | ||
00902d94 | 908 | ctx->pctx = pctx; |
81c79453 PY |
909 | |
910 | if (pctx != NULL) { | |
911 | /* make sure pctx is not freed when destroying EVP_MD_CTX */ | |
912 | EVP_MD_CTX_set_flags(ctx, EVP_MD_CTX_FLAG_KEEP_PKEY_CTX); | |
913 | } else { | |
914 | EVP_MD_CTX_clear_flags(ctx, EVP_MD_CTX_FLAG_KEEP_PKEY_CTX); | |
915 | } | |
00902d94 | 916 | } |
f844f9eb | 917 | #endif /* !defined(FIPS_MODULE) */ |
00902d94 | 918 | |
7638370c RL |
919 | void *EVP_MD_CTX_md_data(const EVP_MD_CTX *ctx) |
920 | { | |
921 | return ctx->md_data; | |
922 | } | |
923 | ||
924 | int (*EVP_MD_CTX_update_fn(EVP_MD_CTX *ctx))(EVP_MD_CTX *ctx, | |
925 | const void *data, size_t count) | |
926 | { | |
927 | return ctx->update; | |
928 | } | |
929 | ||
930 | void EVP_MD_CTX_set_update_fn(EVP_MD_CTX *ctx, | |
931 | int (*update) (EVP_MD_CTX *ctx, | |
932 | const void *data, size_t count)) | |
933 | { | |
934 | ctx->update = update; | |
935 | } | |
936 | ||
7806f3dd | 937 | void EVP_MD_CTX_set_flags(EVP_MD_CTX *ctx, int flags) |
0f113f3e MC |
938 | { |
939 | ctx->flags |= flags; | |
940 | } | |
7806f3dd NL |
941 | |
942 | void EVP_MD_CTX_clear_flags(EVP_MD_CTX *ctx, int flags) | |
0f113f3e MC |
943 | { |
944 | ctx->flags &= ~flags; | |
945 | } | |
7806f3dd NL |
946 | |
947 | int EVP_MD_CTX_test_flags(const EVP_MD_CTX *ctx, int flags) | |
0f113f3e MC |
948 | { |
949 | return (ctx->flags & flags); | |
950 | } | |
e92f9f45 DSH |
951 | |
952 | void EVP_CIPHER_CTX_set_flags(EVP_CIPHER_CTX *ctx, int flags) | |
0f113f3e MC |
953 | { |
954 | ctx->flags |= flags; | |
955 | } | |
e92f9f45 DSH |
956 | |
957 | void EVP_CIPHER_CTX_clear_flags(EVP_CIPHER_CTX *ctx, int flags) | |
0f113f3e MC |
958 | { |
959 | ctx->flags &= ~flags; | |
960 | } | |
e92f9f45 DSH |
961 | |
962 | int EVP_CIPHER_CTX_test_flags(const EVP_CIPHER_CTX *ctx, int flags) | |
0f113f3e MC |
963 | { |
964 | return (ctx->flags & flags); | |
965 | } | |
f842b6b2 | 966 | |
11a1b341 MC |
967 | int EVP_PKEY_CTX_set_group_name(EVP_PKEY_CTX *ctx, const char *name) |
968 | { | |
969 | OSSL_PARAM params[] = { OSSL_PARAM_END, OSSL_PARAM_END }; | |
970 | OSSL_PARAM *p = params; | |
971 | ||
023b188c MC |
972 | if (ctx == NULL) { |
973 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); | |
974 | /* Uses the same return values as EVP_PKEY_CTX_ctrl */ | |
975 | return -2; | |
976 | } | |
977 | ||
978 | if (!EVP_PKEY_CTX_IS_GEN_OP(ctx)) { | |
979 | #ifndef FIPS_MODULE | |
980 | int nid; | |
981 | ||
982 | /* Could be a legacy key, try and convert to a ctrl */ | |
983 | if (ctx->pmeth != NULL && (nid = OBJ_txt2nid(name)) != NID_undef) { | |
023b188c MC |
984 | if (ctx->pmeth->pkey_id == EVP_PKEY_DH) |
985 | return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DH, | |
986 | EVP_PKEY_OP_PARAMGEN | |
987 | | EVP_PKEY_OP_KEYGEN, | |
988 | EVP_PKEY_CTRL_DH_NID, nid, NULL); | |
023b188c MC |
989 | if (ctx->pmeth->pkey_id == EVP_PKEY_EC) |
990 | return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, | |
991 | EVP_PKEY_OP_PARAMGEN|EVP_PKEY_OP_KEYGEN, | |
992 | EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID, | |
993 | nid, NULL); | |
023b188c MC |
994 | } |
995 | #endif | |
11a1b341 MC |
996 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); |
997 | /* Uses the same return values as EVP_PKEY_CTX_ctrl */ | |
998 | return -2; | |
999 | } | |
1000 | ||
1001 | if (name == NULL) | |
1002 | return -1; | |
1003 | ||
1004 | *p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_GROUP_NAME, | |
1005 | (char *)name, 0); | |
1006 | return EVP_PKEY_CTX_set_params(ctx, params); | |
1007 | } | |
1008 | ||
1009 | int EVP_PKEY_CTX_get_group_name(EVP_PKEY_CTX *ctx, char *name, size_t namelen) | |
1010 | { | |
1011 | OSSL_PARAM params[] = { OSSL_PARAM_END, OSSL_PARAM_END }; | |
1012 | OSSL_PARAM *p = params; | |
1013 | ||
1014 | if (ctx == NULL || !EVP_PKEY_CTX_IS_GEN_OP(ctx)) { | |
023b188c | 1015 | /* There is no legacy support for this */ |
11a1b341 MC |
1016 | ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED); |
1017 | /* Uses the same return values as EVP_PKEY_CTX_ctrl */ | |
1018 | return -2; | |
1019 | } | |
1020 | ||
1021 | if (name == NULL) | |
1022 | return -1; | |
1023 | ||
1024 | *p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_GROUP_NAME, | |
1025 | name, namelen); | |
1026 | if (!EVP_PKEY_CTX_get_params(ctx, params)) | |
1027 | return -1; | |
1028 | return 1; | |
1029 | } |