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Increase OSSL_PARAM_BLD_MAX for multi-prime RSA
[thirdparty/openssl.git] / crypto / evp / pmeth_lib.c
CommitLineData
d0ea49a8 1
0f113f3e 2/*
b0edda11 3 * Copyright 2006-2018 The OpenSSL Project Authors. All Rights Reserved.
0b6f3c66 4 *
4a8b0c55 5 * Licensed under the Apache License 2.0 (the "License"). You may not use
62867571
RS		 6 * this file except in compliance with the License. You can obtain a copy
7 * in the file LICENSE in the source distribution or at
8 * https://www.openssl.org/source/license.html
0b6f3c66
DSH		 9 */
10
11#include <stdio.h>
12#include <stdlib.h>
3c27208f 13#include <openssl/engine.h>
33bed28b 14#include <openssl/evp.h>
99119000 15#include <openssl/x509v3.h>
35aca9ec
MC		 16#include <openssl/core_names.h>
17#include <openssl/dh.h>
18#include "internal/cryptlib.h"
25f2138b
DMSP		 19#include "crypto/asn1.h"
20#include "crypto/evp.h"
99119000 21#include "internal/numbers.h"
390acbeb 22#include "internal/provider.h"
706457b7 23#include "evp_local.h"
0b6f3c66 24
19bd1fa1 25typedef const EVP_PKEY_METHOD *(*pmeth_fn)(void);
0f113f3e 26typedef int sk_cmp_fn_type(const char *const *a, const char *const *b);
5ce278a7 27
df2ee0e2 28static STACK_OF(EVP_PKEY_METHOD) *app_pkey_methods = NULL;
0b6f3c66 29
cefa762e 30/* This array needs to be in order of NIDs */
19bd1fa1 31static pmeth_fn standard_methods[] = {
d4f0339c 32#ifndef OPENSSL_NO_RSA
19bd1fa1 33 rsa_pkey_method,
d4f0339c
DSH		 34#endif
35#ifndef OPENSSL_NO_DH
19bd1fa1 36 dh_pkey_method,
d4f0339c
DSH		 37#endif
38#ifndef OPENSSL_NO_DSA
19bd1fa1 39 dsa_pkey_method,
d4f0339c 40#endif
ef236ec3 41#ifndef OPENSSL_NO_EC
19bd1fa1 42 ec_pkey_method,
ef236ec3 43#endif
19bd1fa1 44 hmac_pkey_method,
b4a3aeeb 45#ifndef OPENSSL_NO_CMAC
19bd1fa1 46 cmac_pkey_method,
b4a3aeeb 47#endif
6577e008 48#ifndef OPENSSL_NO_RSA
19bd1fa1 49 rsa_pss_pkey_method,
6577e008 50#endif
afb14cda 51#ifndef OPENSSL_NO_DH
19bd1fa1 52 dhx_pkey_method,
cefa762e
JB		 53#endif
54#ifndef OPENSSL_NO_SCRYPT
19bd1fa1 55 scrypt_pkey_method,
afb14cda 56#endif
19bd1fa1 57 tls1_prf_pkey_method,
262bd85f 58#ifndef OPENSSL_NO_EC
19bd1fa1
PS		 59 ecx25519_pkey_method,
60 ecx448_pkey_method,
262bd85f 61#endif
19bd1fa1 62 hkdf_pkey_method,
52ad5b60 63#ifndef OPENSSL_NO_POLY1305
19bd1fa1 64 poly1305_pkey_method,
52ad5b60 65#endif
3f5616d7 66#ifndef OPENSSL_NO_SIPHASH
19bd1fa1 67 siphash_pkey_method,
3f5616d7 68#endif
42a3008a 69#ifndef OPENSSL_NO_EC
19bd1fa1
PS		 70 ed25519_pkey_method,
71 ed448_pkey_method,
42a3008a 72#endif
ddb634fe 73#ifndef OPENSSL_NO_SM2
19bd1fa1 74 sm2_pkey_method,
ddb634fe 75#endif
0f113f3e 76};
0b6f3c66 77
19bd1fa1
PS		 78DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, pmeth_fn, pmeth_func);
79
80static int pmeth_func_cmp(const EVP_PKEY_METHOD *const *a, pmeth_fn const *b)
81{
82 return ((*a)->pkey_id - ((**b)())->pkey_id);
83}
84
85IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, pmeth_fn, pmeth_func);
babb3798 86
0f113f3e
MC		 87static int pmeth_cmp(const EVP_PKEY_METHOD *const *a,
88 const EVP_PKEY_METHOD *const *b)
89{
90 return ((*a)->pkey_id - (*b)->pkey_id);
91}
0b6f3c66 92
c9777d26 93const EVP_PKEY_METHOD *EVP_PKEY_meth_find(int type)
0f113f3e 94{
19bd1fa1 95 pmeth_fn *ret;
0f113f3e 96 EVP_PKEY_METHOD tmp;
19bd1fa1 97 const EVP_PKEY_METHOD *t = &tmp;
12a765a5 98
0f113f3e
MC		 99 tmp.pkey_id = type;
100 if (app_pkey_methods) {
101 int idx;
102 idx = sk_EVP_PKEY_METHOD_find(app_pkey_methods, &tmp);
103 if (idx >= 0)
104 return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx);
105 }
19bd1fa1
PS		 106 ret = OBJ_bsearch_pmeth_func(&t, standard_methods,
107 sizeof(standard_methods) /
108 sizeof(pmeth_fn));
12a765a5 109 if (ret == NULL || *ret == NULL)
0f113f3e 110 return NULL;
19bd1fa1 111 return (**ret)();
0f113f3e 112}
0b6f3c66 113
3ee348b0
RL		 114static EVP_PKEY_CTX *int_ctx_new(OPENSSL_CTX *libctx,
115 EVP_PKEY *pkey, ENGINE *e,
a07c17ef
RL		 116 const char *name, const char *propquery,
117 int id)
0f113f3e
MC		 118{
119 EVP_PKEY_CTX *ret;
d0ea49a8
RL		 120 const EVP_PKEY_METHOD *pmeth = NULL;
121
122 /*
123 * When using providers, the context is bound to the algo implementation
124 * later.
125 */
126 if (pkey == NULL && e == NULL && id == -1)
127 goto common;
2f2e6b62 128
d0ea49a8
RL		 129 /* TODO(3.0) Legacy code should be removed when all is provider based */
130 /* BEGIN legacy */
0f113f3e 131 if (id == -1) {
a6465b3f
P		 132 if (pkey == NULL)
133 return 0;
2f2e6b62 134 id = pkey->type;
0f113f3e 135 }
60653e5b
RL		 136
137 /*
138 * Here, we extract what information we can for the purpose of
139 * supporting usage with implementations from providers, to make
140 * for a smooth transition from legacy stuff to provider based stuff.
141 *
142 * If an engine is given, this is entirely legacy, and we should not
143 * pretend anything else, so we only set the name when no engine is
144 * given. If both are already given, someone made a mistake, and
145 * since that can only happen internally, it's safe to make an
146 * assertion.
147 */
148 if (!ossl_assert(e == NULL || name == NULL))
149 return NULL;
150 if (e == NULL)
151 name = OBJ_nid2sn(id);
a07c17ef 152 propquery = NULL;
3ee348b0
RL		 153 /*
154 * We were called using legacy data, or an EVP_PKEY, but an EVP_PKEY
155 * isn't tied to a specific library context, so we fall back to the
156 * default library context.
157 * TODO(v3.0): an EVP_PKEY that doesn't originate from a leagacy key
158 * structure only has the pkeys[] cache, where the first element is
159 * considered the "origin". Investigate if that could be a suitable
160 * way to find a library context.
161 */
162 libctx = NULL;
60653e5b 163
a63bf2c5 164#ifndef OPENSSL_NO_ENGINE
c2976edf 165 if (e == NULL && pkey != NULL)
d19b01ad 166 e = pkey->pmeth_engine != NULL ? pkey->pmeth_engine : pkey->engine;
0f113f3e
MC		 167 /* Try to find an ENGINE which implements this method */
168 if (e) {
169 if (!ENGINE_init(e)) {
170 EVPerr(EVP_F_INT_CTX_NEW, ERR_R_ENGINE_LIB);
171 return NULL;
172 }
c2976edf 173 } else {
0f113f3e 174 e = ENGINE_get_pkey_meth_engine(id);
c2976edf 175 }
0f113f3e
MC		 176
177 /*
0d4fb843 178 * If an ENGINE handled this method look it up. Otherwise use internal
0f113f3e
MC		 179 * tables.
180 */
0f113f3e
MC		 181 if (e)
182 pmeth = ENGINE_get_pkey_meth(e, id);
183 else
a63bf2c5 184#endif
0f113f3e 185 pmeth = EVP_PKEY_meth_find(id);
c9777d26 186
0f113f3e 187 if (pmeth == NULL) {
918a27fa
DSH		 188#ifndef OPENSSL_NO_ENGINE
189 ENGINE_finish(e);
190#endif
0f113f3e
MC		 191 EVPerr(EVP_F_INT_CTX_NEW, EVP_R_UNSUPPORTED_ALGORITHM);
192 return NULL;
193 }
d0ea49a8 194 /* END legacy */
c9777d26 195
d0ea49a8 196 common:
64b25758 197 ret = OPENSSL_zalloc(sizeof(*ret));
90945fa3 198 if (ret == NULL) {
a63bf2c5 199#ifndef OPENSSL_NO_ENGINE
7c96dbcd 200 ENGINE_finish(e);
a63bf2c5 201#endif
0f113f3e
MC		 202 EVPerr(EVP_F_INT_CTX_NEW, ERR_R_MALLOC_FAILURE);
203 return NULL;
204 }
3ee348b0 205 ret->libctx = libctx;
a07c17ef
RL		 206 ret->algorithm = name;
207 ret->propquery = propquery;
0f113f3e
MC		 208 ret->engine = e;
209 ret->pmeth = pmeth;
210 ret->operation = EVP_PKEY_OP_UNDEFINED;
211 ret->pkey = pkey;
a6465b3f 212 if (pkey != NULL)
03273d61 213 EVP_PKEY_up_ref(pkey);
0f113f3e 214
8b84b075 215 if (pmeth != NULL && pmeth->init != NULL) {
0f113f3e 216 if (pmeth->init(ret) <= 0) {
83b4049a 217 ret->pmeth = NULL;
0f113f3e
MC		 218 EVP_PKEY_CTX_free(ret);
219 return NULL;
220 }
221 }
222
223 return ret;
224}
225
864b89ce
MC		 226void evp_pkey_ctx_free_old_ops(EVP_PKEY_CTX *ctx)
227{
228 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
229 if (ctx->op.kex.exchprovctx != NULL && ctx->op.kex.exchange != NULL)
230 ctx->op.kex.exchange->freectx(ctx->op.kex.exchprovctx);
231 EVP_KEYEXCH_free(ctx->op.kex.exchange);
fb1ecf85
RL		 232 ctx->op.kex.exchprovctx = NULL;
233 ctx->op.kex.exchange = NULL;
864b89ce
MC		 234 } else if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
235 if (ctx->op.sig.sigprovctx != NULL && ctx->op.sig.signature != NULL)
236 ctx->op.sig.signature->freectx(ctx->op.sig.sigprovctx);
237 EVP_SIGNATURE_free(ctx->op.sig.signature);
fb1ecf85
RL		 238 ctx->op.sig.sigprovctx = NULL;
239 ctx->op.sig.signature = NULL;
2c938e2e
MC		 240 } else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)) {
241 if (ctx->op.ciph.ciphprovctx != NULL && ctx->op.ciph.cipher != NULL)
242 ctx->op.ciph.cipher->freectx(ctx->op.ciph.ciphprovctx);
243 EVP_ASYM_CIPHER_free(ctx->op.ciph.cipher);
244 ctx->op.ciph.ciphprovctx = NULL;
245 ctx->op.ciph.cipher = NULL;
864b89ce
MC		 246 }
247}
248
0f113f3e
MC		 249EVP_PKEY_METHOD *EVP_PKEY_meth_new(int id, int flags)
250{
251 EVP_PKEY_METHOD *pmeth;
b4faea50 252
b51bce94 253 pmeth = OPENSSL_zalloc(sizeof(*pmeth));
3484236d
F		 254 if (pmeth == NULL) {
255 EVPerr(EVP_F_EVP_PKEY_METH_NEW, ERR_R_MALLOC_FAILURE);
0f113f3e 256 return NULL;
3484236d 257 }
0f113f3e 258
0f113f3e
MC		 259 pmeth->pkey_id = id;
260 pmeth->flags = flags | EVP_PKEY_FLAG_DYNAMIC;
0f113f3e
MC		 261 return pmeth;
262}
ba30bad5 263
f830c68f 264void EVP_PKEY_meth_get0_info(int *ppkey_id, int *pflags,
0f113f3e
MC		 265 const EVP_PKEY_METHOD *meth)
266{
267 if (ppkey_id)
268 *ppkey_id = meth->pkey_id;
269 if (pflags)
270 *pflags = meth->flags;
271}
f830c68f
DSH		 272
273void EVP_PKEY_meth_copy(EVP_PKEY_METHOD *dst, const EVP_PKEY_METHOD *src)
0f113f3e 274{
f830c68f 275
0f113f3e
MC		 276 dst->init = src->init;
277 dst->copy = src->copy;
278 dst->cleanup = src->cleanup;
f830c68f 279
0f113f3e
MC		 280 dst->paramgen_init = src->paramgen_init;
281 dst->paramgen = src->paramgen;
f830c68f 282
0f113f3e
MC		 283 dst->keygen_init = src->keygen_init;
284 dst->keygen = src->keygen;
f830c68f 285
0f113f3e
MC		 286 dst->sign_init = src->sign_init;
287 dst->sign = src->sign;
f830c68f 288
0f113f3e
MC		 289 dst->verify_init = src->verify_init;
290 dst->verify = src->verify;
f830c68f 291
0f113f3e
MC		 292 dst->verify_recover_init = src->verify_recover_init;
293 dst->verify_recover = src->verify_recover;
f830c68f 294
0f113f3e
MC		 295 dst->signctx_init = src->signctx_init;
296 dst->signctx = src->signctx;
f830c68f 297
0f113f3e
MC		 298 dst->verifyctx_init = src->verifyctx_init;
299 dst->verifyctx = src->verifyctx;
f830c68f 300
0f113f3e
MC		 301 dst->encrypt_init = src->encrypt_init;
302 dst->encrypt = src->encrypt;
f830c68f 303
0f113f3e
MC		 304 dst->decrypt_init = src->decrypt_init;
305 dst->decrypt = src->decrypt;
f830c68f 306
0f113f3e
MC		 307 dst->derive_init = src->derive_init;
308 dst->derive = src->derive;
f830c68f 309
0f113f3e
MC		 310 dst->ctrl = src->ctrl;
311 dst->ctrl_str = src->ctrl_str;
2aee35d3
PY		 312
313 dst->check = src->check;
0f113f3e 314}
f830c68f 315
ba30bad5 316void EVP_PKEY_meth_free(EVP_PKEY_METHOD *pmeth)
0f113f3e
MC		 317{
318 if (pmeth && (pmeth->flags & EVP_PKEY_FLAG_DYNAMIC))
319 OPENSSL_free(pmeth);
320}
ba30bad5 321
f5cda4cb 322EVP_PKEY_CTX *EVP_PKEY_CTX_new(EVP_PKEY *pkey, ENGINE *e)
0f113f3e 323{
3ee348b0 324 return int_ctx_new(NULL, pkey, e, NULL, NULL, -1);
0f113f3e 325}
f5cda4cb
DSH		 326
327EVP_PKEY_CTX *EVP_PKEY_CTX_new_id(int id, ENGINE *e)
0f113f3e 328{
3ee348b0 329 return int_ctx_new(NULL, NULL, e, NULL, NULL, id);
a07c17ef
RL		 330}
331
3ee348b0
RL		 332EVP_PKEY_CTX *EVP_PKEY_CTX_new_provided(OPENSSL_CTX *libctx,
333 const char *name,
a07c17ef
RL		 334 const char *propquery)
335{
3ee348b0 336 return int_ctx_new(libctx, NULL, NULL, name, propquery, -1);
0f113f3e 337}
f5cda4cb 338
9fdcc21f 339EVP_PKEY_CTX *EVP_PKEY_CTX_dup(const EVP_PKEY_CTX *pctx)
0f113f3e
MC		 340{
341 EVP_PKEY_CTX *rctx;
ff64702b
MC		 342
343 if (((pctx->pmeth == NULL) || (pctx->pmeth->copy == NULL))
864b89ce
MC		 344 && ((EVP_PKEY_CTX_IS_DERIVE_OP(pctx)
345 && pctx->op.kex.exchprovctx == NULL)
346 || (EVP_PKEY_CTX_IS_SIGNATURE_OP(pctx)
347 && pctx->op.sig.sigprovctx == NULL)))
0f113f3e 348 return NULL;
c9777d26 349#ifndef OPENSSL_NO_ENGINE
0f113f3e
MC		 350 /* Make sure it's safe to copy a pkey context using an ENGINE */
351 if (pctx->engine && !ENGINE_init(pctx->engine)) {
352 EVPerr(EVP_F_EVP_PKEY_CTX_DUP, ERR_R_ENGINE_LIB);
353 return 0;
354 }
c9777d26 355#endif
ff64702b 356 rctx = OPENSSL_zalloc(sizeof(*rctx));
3484236d
F		 357 if (rctx == NULL) {
358 EVPerr(EVP_F_EVP_PKEY_CTX_DUP, ERR_R_MALLOC_FAILURE);
0f113f3e 359 return NULL;
3484236d 360 }
8bdcef40 361
ff64702b
MC		 362 if (pctx->pkey != NULL)
363 EVP_PKEY_up_ref(pctx->pkey);
364 rctx->pkey = pctx->pkey;
365 rctx->operation = pctx->operation;
3ee348b0 366 rctx->libctx = pctx->libctx;
a07c17ef
RL		 367 rctx->algorithm = pctx->algorithm;
368 rctx->propquery = pctx->propquery;
ff64702b 369
864b89ce
MC		 370 if (EVP_PKEY_CTX_IS_DERIVE_OP(pctx)) {
371 if (pctx->op.kex.exchange != NULL) {
372 rctx->op.kex.exchange = pctx->op.kex.exchange;
373 if (!EVP_KEYEXCH_up_ref(rctx->op.kex.exchange)) {
374 OPENSSL_free(rctx);
375 return NULL;
376 }
ff64702b 377 }
864b89ce
MC		 378 if (pctx->op.kex.exchprovctx != NULL) {
379 if (!ossl_assert(pctx->op.kex.exchange != NULL))
380 return NULL;
381 rctx->op.kex.exchprovctx
382 = pctx->op.kex.exchange->dupctx(pctx->op.kex.exchprovctx);
383 if (rctx->op.kex.exchprovctx == NULL) {
384 EVP_KEYEXCH_free(rctx->op.kex.exchange);
385 OPENSSL_free(rctx);
386 return NULL;
387 }
388 return rctx;
389 }
390 } else if (EVP_PKEY_CTX_IS_SIGNATURE_OP(pctx)) {
391 if (pctx->op.sig.signature != NULL) {
392 rctx->op.sig.signature = pctx->op.sig.signature;
393 if (!EVP_SIGNATURE_up_ref(rctx->op.sig.signature)) {
394 OPENSSL_free(rctx);
395 return NULL;
396 }
397 }
398 if (pctx->op.sig.sigprovctx != NULL) {
399 if (!ossl_assert(pctx->op.sig.signature != NULL))
400 return NULL;
401 rctx->op.sig.sigprovctx
402 = pctx->op.sig.signature->dupctx(pctx->op.sig.sigprovctx);
403 if (rctx->op.sig.sigprovctx == NULL) {
404 EVP_SIGNATURE_free(rctx->op.sig.signature);
405 OPENSSL_free(rctx);
406 return NULL;
407 }
408 return rctx;
ff64702b 409 }
2c938e2e
MC		 410 } else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(pctx)) {
411 if (pctx->op.ciph.cipher != NULL) {
412 rctx->op.ciph.cipher = pctx->op.ciph.cipher;
413 if (!EVP_ASYM_CIPHER_up_ref(rctx->op.ciph.cipher)) {
414 OPENSSL_free(rctx);
415 return NULL;
416 }
417 }
418 if (pctx->op.ciph.ciphprovctx != NULL) {
419 if (!ossl_assert(pctx->op.ciph.cipher != NULL))
420 return NULL;
421 rctx->op.ciph.ciphprovctx
422 = pctx->op.ciph.cipher->dupctx(pctx->op.ciph.ciphprovctx);
423 if (rctx->op.ciph.ciphprovctx == NULL) {
424 EVP_ASYM_CIPHER_free(rctx->op.ciph.cipher);
425 OPENSSL_free(rctx);
426 return NULL;
427 }
428 return rctx;
429 }
ff64702b
MC		 430 }
431
0f113f3e 432 rctx->pmeth = pctx->pmeth;
c9777d26 433#ifndef OPENSSL_NO_ENGINE
0f113f3e 434 rctx->engine = pctx->engine;
c9777d26 435#endif
8bdcef40 436
0f113f3e 437 if (pctx->peerkey)
03273d61 438 EVP_PKEY_up_ref(pctx->peerkey);
0f113f3e 439 rctx->peerkey = pctx->peerkey;
8bdcef40 440
0f113f3e
MC		 441 if (pctx->pmeth->copy(rctx, pctx) > 0)
442 return rctx;
8bdcef40 443
83b4049a 444 rctx->pmeth = NULL;
0f113f3e
MC		 445 EVP_PKEY_CTX_free(rctx);
446 return NULL;
8bdcef40 447
0f113f3e 448}
8bdcef40 449
ba30bad5 450int EVP_PKEY_meth_add0(const EVP_PKEY_METHOD *pmeth)
0f113f3e
MC		 451{
452 if (app_pkey_methods == NULL) {
453 app_pkey_methods = sk_EVP_PKEY_METHOD_new(pmeth_cmp);
3484236d
F		 454 if (app_pkey_methods == NULL){
455 EVPerr(EVP_F_EVP_PKEY_METH_ADD0, ERR_R_MALLOC_FAILURE);
0f113f3e 456 return 0;
3484236d 457 }
0f113f3e 458 }
3484236d
F		 459 if (!sk_EVP_PKEY_METHOD_push(app_pkey_methods, pmeth)) {
460 EVPerr(EVP_F_EVP_PKEY_METH_ADD0, ERR_R_MALLOC_FAILURE);
0f113f3e 461 return 0;
3484236d 462 }
0f113f3e
MC		 463 sk_EVP_PKEY_METHOD_sort(app_pkey_methods);
464 return 1;
465}
ba30bad5 466
0822e89a
PY		 467void evp_app_cleanup_int(void)
468{
469 if (app_pkey_methods != NULL)
470 sk_EVP_PKEY_METHOD_pop_free(app_pkey_methods, EVP_PKEY_meth_free);
471}
472
473int EVP_PKEY_meth_remove(const EVP_PKEY_METHOD *pmeth)
474{
475 const EVP_PKEY_METHOD *ret;
476
477 ret = sk_EVP_PKEY_METHOD_delete_ptr(app_pkey_methods, pmeth);
478
479 return ret == NULL ? 0 : 1;
480}
481
48ed9c23
DSH		 482size_t EVP_PKEY_meth_get_count(void)
483{
484 size_t rv = OSSL_NELEM(standard_methods);
485
486 if (app_pkey_methods)
487 rv += sk_EVP_PKEY_METHOD_num(app_pkey_methods);
488 return rv;
489}
490
491const EVP_PKEY_METHOD *EVP_PKEY_meth_get0(size_t idx)
492{
493 if (idx < OSSL_NELEM(standard_methods))
19bd1fa1 494 return (standard_methods[idx])();
48ed9c23
DSH		 495 if (app_pkey_methods == NULL)
496 return NULL;
497 idx -= OSSL_NELEM(standard_methods);
498 if (idx >= (size_t)sk_EVP_PKEY_METHOD_num(app_pkey_methods))
499 return NULL;
500 return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx);
501}
502
5da98aa6 503void EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 504{
505 if (ctx == NULL)
506 return;
507 if (ctx->pmeth && ctx->pmeth->cleanup)
508 ctx->pmeth->cleanup(ctx);
ff64702b 509
864b89ce 510 evp_pkey_ctx_free_old_ops(ctx);
c0e0984f 511 EVP_KEYMGMT_free(ctx->keymgmt);
dfcb5d29 512
c5ba2d99
RS		 513 EVP_PKEY_free(ctx->pkey);
514 EVP_PKEY_free(ctx->peerkey);
c9777d26 515#ifndef OPENSSL_NO_ENGINE
7c96dbcd 516 ENGINE_finish(ctx->engine);
c9777d26 517#endif
0f113f3e
MC		 518 OPENSSL_free(ctx);
519}
5da98aa6 520
9c45222d
MC		 521int EVP_PKEY_CTX_get_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
522{
864b89ce
MC		 523 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
524 && ctx->op.sig.sigprovctx != NULL
525 && ctx->op.sig.signature != NULL
526 && ctx->op.sig.signature->get_ctx_params != NULL)
527 return ctx->op.sig.signature->get_ctx_params(ctx->op.sig.sigprovctx,
528 params);
2c938e2e
MC		 529 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
530 && ctx->op.ciph.ciphprovctx != NULL
531 && ctx->op.ciph.cipher != NULL
532 && ctx->op.ciph.cipher->get_ctx_params != NULL)
533 return ctx->op.ciph.cipher->get_ctx_params(ctx->op.ciph.ciphprovctx,
534 params);
9c45222d
MC		 535 return 0;
536}
537
538const OSSL_PARAM *EVP_PKEY_CTX_gettable_params(EVP_PKEY_CTX *ctx)
539{
864b89ce
MC		 540 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
541 && ctx->op.sig.signature != NULL
542 && ctx->op.sig.signature->gettable_ctx_params != NULL)
543 return ctx->op.sig.signature->gettable_ctx_params();
9c45222d 544
2c938e2e
MC		 545 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
546 && ctx->op.ciph.cipher != NULL
547 && ctx->op.ciph.cipher->gettable_ctx_params != NULL)
548 return ctx->op.ciph.cipher->gettable_ctx_params();
549
9c45222d
MC		 550 return NULL;
551}
552
35aca9ec
MC		 553int EVP_PKEY_CTX_set_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
554{
864b89ce
MC		 555 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
556 && ctx->op.kex.exchprovctx != NULL
557 && ctx->op.kex.exchange != NULL
558 && ctx->op.kex.exchange->set_ctx_params != NULL)
559 return ctx->op.kex.exchange->set_ctx_params(ctx->op.kex.exchprovctx,
560 params);
561 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
562 && ctx->op.sig.sigprovctx != NULL
563 && ctx->op.sig.signature != NULL
564 && ctx->op.sig.signature->set_ctx_params != NULL)
565 return ctx->op.sig.signature->set_ctx_params(ctx->op.sig.sigprovctx,
566 params);
2c938e2e
MC		 567 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
568 && ctx->op.ciph.ciphprovctx != NULL
569 && ctx->op.ciph.cipher != NULL
570 && ctx->op.ciph.cipher->set_ctx_params != NULL)
571 return ctx->op.ciph.cipher->set_ctx_params(ctx->op.ciph.ciphprovctx,
572 params);
35aca9ec
MC		 573 return 0;
574}
575
9c45222d
MC		 576const OSSL_PARAM *EVP_PKEY_CTX_settable_params(EVP_PKEY_CTX *ctx)
577{
864b89ce
MC		 578 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
579 && ctx->op.kex.exchange != NULL
580 && ctx->op.kex.exchange->settable_ctx_params != NULL)
581 return ctx->op.kex.exchange->settable_ctx_params();
582 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
583 && ctx->op.sig.signature != NULL
584 && ctx->op.sig.signature->settable_ctx_params != NULL)
585 return ctx->op.sig.signature->settable_ctx_params();
2c938e2e
MC		 586 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
587 && ctx->op.ciph.cipher != NULL
588 && ctx->op.ciph.cipher->settable_ctx_params != NULL)
589 return ctx->op.ciph.cipher->settable_ctx_params();
9c45222d
MC		 590
591 return NULL;
592}
593
76ca35e7 594#ifndef OPENSSL_NO_DH
35aca9ec
MC		 595int EVP_PKEY_CTX_set_dh_pad(EVP_PKEY_CTX *ctx, int pad)
596{
597 OSSL_PARAM dh_pad_params[2];
1c3ace68 598 unsigned int upad = pad;
35aca9ec 599
864b89ce
MC		 600 /* We use EVP_PKEY_CTX_ctrl return values */
601 if (ctx == NULL || !EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
602 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
603 return -2;
604 }
605
35aca9ec 606 /* TODO(3.0): Remove this eventually when no more legacy */
864b89ce 607 if (ctx->op.kex.exchprovctx == NULL)
35aca9ec
MC		 608 return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DH, EVP_PKEY_OP_DERIVE,
609 EVP_PKEY_CTRL_DH_PAD, pad, NULL);
610
1c3ace68 611 dh_pad_params[0] = OSSL_PARAM_construct_uint(OSSL_EXCHANGE_PARAM_PAD, &upad);
35aca9ec
MC		 612 dh_pad_params[1] = OSSL_PARAM_construct_end();
613
614 return EVP_PKEY_CTX_set_params(ctx, dh_pad_params);
615}
76ca35e7 616#endif
35aca9ec 617
9c45222d
MC		 618int EVP_PKEY_CTX_get_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD **md)
619{
620 OSSL_PARAM sig_md_params[3], *p = sig_md_params;
621 /* 80 should be big enough */
622 char name[80] = "";
623 const EVP_MD *tmp;
624
864b89ce 625 if (ctx == NULL || !EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
9c45222d
MC		 626 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
627 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
628 return -2;
629 }
630
631 /* TODO(3.0): Remove this eventually when no more legacy */
864b89ce 632 if (ctx->op.sig.sigprovctx == NULL)
9c45222d
MC		 633 return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG,
634 EVP_PKEY_CTRL_GET_MD, 0, (void *)(md));
635
636 *p++ = OSSL_PARAM_construct_utf8_string(OSSL_SIGNATURE_PARAM_DIGEST,
637 name,
638 sizeof(name));
639 *p++ = OSSL_PARAM_construct_end();
640
641 if (!EVP_PKEY_CTX_get_params(ctx, sig_md_params))
642 return 0;
643
7606bed9 644 tmp = evp_get_digestbyname_ex(ctx->libctx, name);
9c45222d
MC		 645 if (tmp == NULL)
646 return 0;
647
648 *md = tmp;
649
650 return 1;
651}
652
4889dadc
MC		 653int EVP_PKEY_CTX_set_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD *md)
654{
9c45222d 655 OSSL_PARAM sig_md_params[3], *p = sig_md_params;
4889dadc
MC		 656 size_t mdsize;
657 const char *name;
658
864b89ce 659 if (ctx == NULL || !EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
9c45222d
MC		 660 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
661 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
662 return -2;
663 }
664
4889dadc 665 /* TODO(3.0): Remove this eventually when no more legacy */
864b89ce 666 if (ctx->op.sig.sigprovctx == NULL)
4889dadc
MC		 667 return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG,
668 EVP_PKEY_CTRL_MD, 0, (void *)(md));
669
9c45222d
MC		 670 if (md == NULL) {
671 name = "";
672 mdsize = 0;
673 } else {
674 mdsize = EVP_MD_size(md);
675 name = EVP_MD_name(md);
676 }
4889dadc 677
9c45222d
MC		 678 *p++ = OSSL_PARAM_construct_utf8_string(OSSL_SIGNATURE_PARAM_DIGEST,
679 /*
680 * Cast away the const. This is read
681 * only so should be safe
682 */
683 (char *)name,
684 strlen(name) + 1);
685 *p++ = OSSL_PARAM_construct_size_t(OSSL_SIGNATURE_PARAM_DIGEST_SIZE,
686 &mdsize);
687 *p++ = OSSL_PARAM_construct_end();
4889dadc 688
9c45222d 689 return EVP_PKEY_CTX_set_params(ctx, sig_md_params);
4889dadc
MC		 690}
691
35aca9ec
MC		 692static int legacy_ctrl_to_param(EVP_PKEY_CTX *ctx, int keytype, int optype,
693 int cmd, int p1, void *p2)
694{
695 switch (cmd) {
76ca35e7 696#ifndef OPENSSL_NO_DH
35aca9ec
MC		 697 case EVP_PKEY_CTRL_DH_PAD:
698 return EVP_PKEY_CTX_set_dh_pad(ctx, p1);
76ca35e7 699#endif
390acbeb
MC		 700 case EVP_PKEY_CTRL_MD:
701 return EVP_PKEY_CTX_set_signature_md(ctx, p2);
864b89ce
MC		 702 case EVP_PKEY_CTRL_GET_MD:
703 return EVP_PKEY_CTX_get_signature_md(ctx, p2);
35aca9ec
MC		 704 }
705 return 0;
706}
707
0b6f3c66 708int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype,
0f113f3e
MC		 709 int cmd, int p1, void *p2)
710{
711 int ret;
4803717f 712
35aca9ec
MC		 713 if (ctx == NULL) {
714 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED);
715 return -2;
716 }
717
864b89ce 718 if ((EVP_PKEY_CTX_IS_DERIVE_OP(ctx) && ctx->op.kex.exchprovctx != NULL)
48bb9792 719 || (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
2c938e2e
MC		 720 && ctx->op.sig.sigprovctx != NULL)
721 || (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
722 && ctx->op.ciph.ciphprovctx != NULL))
35aca9ec
MC		 723 return legacy_ctrl_to_param(ctx, keytype, optype, cmd, p1, p2);
724
725 if (ctx->pmeth == NULL || ctx->pmeth->ctrl == NULL) {
0f113f3e
MC		 726 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED);
727 return -2;
728 }
729 if ((keytype != -1) && (ctx->pmeth->pkey_id != keytype))
730 return -1;
731
4803717f
PY		 732 /* Skip the operation checks since this is called in a very early stage */
733 if (ctx->pmeth->digest_custom != NULL)
734 goto doit;
735
0f113f3e
MC		 736 if (ctx->operation == EVP_PKEY_OP_UNDEFINED) {
737 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_NO_OPERATION_SET);
738 return -1;
739 }
740
741 if ((optype != -1) && !(ctx->operation & optype)) {
742 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_INVALID_OPERATION);
743 return -1;
744 }
745
4803717f 746 doit:
0f113f3e
MC		 747 ret = ctx->pmeth->ctrl(ctx, cmd, p1, p2);
748
749 if (ret == -2)
750 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED);
751
752 return ret;
0f113f3e 753}
0b6f3c66 754
cefa762e 755int EVP_PKEY_CTX_ctrl_uint64(EVP_PKEY_CTX *ctx, int keytype, int optype,
64bf1016 756 int cmd, uint64_t value)
cefa762e
JB		 757{
758 return EVP_PKEY_CTX_ctrl(ctx, keytype, optype, cmd, 0, &value);
759}
760
35aca9ec
MC		 761static int legacy_ctrl_str_to_param(EVP_PKEY_CTX *ctx, const char *name,
762 const char *value)
763{
76ca35e7 764#ifndef OPENSSL_NO_DH
35aca9ec
MC		 765 if (strcmp(name, "dh_pad") == 0) {
766 int pad;
767
768 pad = atoi(value);
769 return EVP_PKEY_CTX_set_dh_pad(ctx, pad);
770 }
76ca35e7 771#endif
390acbeb
MC		 772 if (strcmp(name, "digest") == 0) {
773 int ret;
864b89ce
MC		 774 EVP_MD *md;
775
776 if (!EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) || ctx->op.sig.signature == NULL)
777 return 0;
778 md = EVP_MD_fetch(ossl_provider_library_context(ctx->op.sig.signature->prov),
779 value, NULL);
390acbeb
MC		 780 if (md == NULL)
781 return 0;
782 ret = EVP_PKEY_CTX_set_signature_md(ctx, md);
783 EVP_MD_meth_free(md);
784 return ret;
785 }
786
35aca9ec
MC		 787 return 0;
788}
789
4a3dc3c0 790int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX *ctx,
0f113f3e
MC		 791 const char *name, const char *value)
792{
35aca9ec
MC		 793 if (ctx == NULL) {
794 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR, EVP_R_COMMAND_NOT_SUPPORTED);
795 return -2;
796 }
797
864b89ce
MC		 798 if ((EVP_PKEY_CTX_IS_DERIVE_OP(ctx) && ctx->op.kex.exchprovctx != NULL)
799 || (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
2c938e2e
MC		 800 && ctx->op.sig.sigprovctx != NULL)
801 || (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
802 && ctx->op.ciph.ciphprovctx != NULL))
35aca9ec
MC		 803 return legacy_ctrl_str_to_param(ctx, name, value);
804
0f113f3e
MC		 805 if (!ctx || !ctx->pmeth || !ctx->pmeth->ctrl_str) {
806 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR, EVP_R_COMMAND_NOT_SUPPORTED);
807 return -2;
808 }
410877ba
DSH		 809 if (strcmp(name, "digest") == 0)
810 return EVP_PKEY_CTX_md(ctx, EVP_PKEY_OP_TYPE_SIG, EVP_PKEY_CTRL_MD,
811 value);
0f113f3e
MC		 812 return ctx->pmeth->ctrl_str(ctx, name, value);
813}
f5cda4cb 814
99119000
DSH		 815/* Utility functions to send a string of hex string to a ctrl */
816
817int EVP_PKEY_CTX_str2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *str)
818{
819 size_t len;
820
821 len = strlen(str);
822 if (len > INT_MAX)
823 return -1;
824 return ctx->pmeth->ctrl(ctx, cmd, len, (void *)str);
825}
826
827int EVP_PKEY_CTX_hex2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *hex)
828{
829 unsigned char *bin;
830 long binlen;
831 int rv = -1;
832
14f051a0 833 bin = OPENSSL_hexstr2buf(hex, &binlen);
99119000
DSH		 834 if (bin == NULL)
835 return 0;
836 if (binlen <= INT_MAX)
837 rv = ctx->pmeth->ctrl(ctx, cmd, binlen, bin);
838 OPENSSL_free(bin);
839 return rv;
840}
52ad523c 841
410877ba
DSH		 842/* Pass a message digest to a ctrl */
843int EVP_PKEY_CTX_md(EVP_PKEY_CTX *ctx, int optype, int cmd, const char *md)
844{
845 const EVP_MD *m;
c82bafc5 846
410877ba
DSH		 847 if (md == NULL || (m = EVP_get_digestbyname(md)) == NULL) {
848 EVPerr(EVP_F_EVP_PKEY_CTX_MD, EVP_R_INVALID_DIGEST);
849 return 0;
850 }
851 return EVP_PKEY_CTX_ctrl(ctx, -1, optype, cmd, 0, (void *)m);
852}
99119000 853
b28dea4e 854int EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 855{
856 return ctx->operation;
857}
b28dea4e
DSH		 858
859void EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX *ctx, int *dat, int datlen)
0f113f3e
MC		 860{
861 ctx->keygen_info = dat;
862 ctx->keygen_info_count = datlen;
863}
b28dea4e 864
f5cda4cb 865void EVP_PKEY_CTX_set_data(EVP_PKEY_CTX *ctx, void *data)
0f113f3e
MC		 866{
867 ctx->data = data;
868}
f5cda4cb 869
9fdcc21f 870void *EVP_PKEY_CTX_get_data(const EVP_PKEY_CTX *ctx)
0f113f3e
MC		 871{
872 return ctx->data;
873}
f5cda4cb 874
81cebb8b 875EVP_PKEY *EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 876{
877 return ctx->pkey;
878}
81cebb8b 879
0e1dba93 880EVP_PKEY *EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 881{
882 return ctx->peerkey;
883}
884
f5cda4cb 885void EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX *ctx, void *data)
0f113f3e
MC		 886{
887 ctx->app_data = data;
888}
f5cda4cb
DSH		 889
890void *EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 891{
892 return ctx->app_data;
893}
ba30bad5
DSH		 894
895void EVP_PKEY_meth_set_init(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 896 int (*init) (EVP_PKEY_CTX *ctx))
897{
898 pmeth->init = init;
899}
8bdcef40
DSH		 900
901void EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD *pmeth,
0f113f3e 902 int (*copy) (EVP_PKEY_CTX *dst,
9fdcc21f 903 const EVP_PKEY_CTX *src))
0f113f3e
MC		 904{
905 pmeth->copy = copy;
906}
ba30bad5
DSH		 907
908void EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 909 void (*cleanup) (EVP_PKEY_CTX *ctx))
910{
911 pmeth->cleanup = cleanup;
912}
ba30bad5
DSH		 913
914void EVP_PKEY_meth_set_paramgen(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 915 int (*paramgen_init) (EVP_PKEY_CTX *ctx),
916 int (*paramgen) (EVP_PKEY_CTX *ctx,
917 EVP_PKEY *pkey))
918{
919 pmeth->paramgen_init = paramgen_init;
920 pmeth->paramgen = paramgen;
921}
ba30bad5
DSH		 922
923void EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 924 int (*keygen_init) (EVP_PKEY_CTX *ctx),
925 int (*keygen) (EVP_PKEY_CTX *ctx,
926 EVP_PKEY *pkey))
927{
928 pmeth->keygen_init = keygen_init;
929 pmeth->keygen = keygen;
930}
ba30bad5
DSH		 931
932void EVP_PKEY_meth_set_sign(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 933 int (*sign_init) (EVP_PKEY_CTX *ctx),
934 int (*sign) (EVP_PKEY_CTX *ctx,
935 unsigned char *sig, size_t *siglen,
936 const unsigned char *tbs,
937 size_t tbslen))
938{
939 pmeth->sign_init = sign_init;
940 pmeth->sign = sign;
941}
ba30bad5
DSH		 942
943void EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 944 int (*verify_init) (EVP_PKEY_CTX *ctx),
945 int (*verify) (EVP_PKEY_CTX *ctx,
946 const unsigned char *sig,
947 size_t siglen,
948 const unsigned char *tbs,
949 size_t tbslen))
950{
951 pmeth->verify_init = verify_init;
952 pmeth->verify = verify;
953}
ba30bad5
DSH		 954
955void EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 956 int (*verify_recover_init) (EVP_PKEY_CTX
957 *ctx),
958 int (*verify_recover) (EVP_PKEY_CTX
959 *ctx,
960 unsigned char
961 *sig,
962 size_t *siglen,
963 const unsigned
964 char *tbs,
965 size_t tbslen))
966{
967 pmeth->verify_recover_init = verify_recover_init;
968 pmeth->verify_recover = verify_recover;
969}
ba30bad5
DSH		 970
971void EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 972 int (*signctx_init) (EVP_PKEY_CTX *ctx,
973 EVP_MD_CTX *mctx),
974 int (*signctx) (EVP_PKEY_CTX *ctx,
975 unsigned char *sig,
976 size_t *siglen,
977 EVP_MD_CTX *mctx))
978{
979 pmeth->signctx_init = signctx_init;
980 pmeth->signctx = signctx;
981}
ba30bad5
DSH		 982
983void EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 984 int (*verifyctx_init) (EVP_PKEY_CTX *ctx,
985 EVP_MD_CTX *mctx),
986 int (*verifyctx) (EVP_PKEY_CTX *ctx,
987 const unsigned char *sig,
988 int siglen,
989 EVP_MD_CTX *mctx))
990{
991 pmeth->verifyctx_init = verifyctx_init;
992 pmeth->verifyctx = verifyctx;
993}
ba30bad5
DSH		 994
995void EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 996 int (*encrypt_init) (EVP_PKEY_CTX *ctx),
997 int (*encryptfn) (EVP_PKEY_CTX *ctx,
998 unsigned char *out,
999 size_t *outlen,
1000 const unsigned char *in,
1001 size_t inlen))
1002{
1003 pmeth->encrypt_init = encrypt_init;
1004 pmeth->encrypt = encryptfn;
1005}
ba30bad5
DSH		 1006
1007void EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1008 int (*decrypt_init) (EVP_PKEY_CTX *ctx),
1009 int (*decrypt) (EVP_PKEY_CTX *ctx,
1010 unsigned char *out,
1011 size_t *outlen,
1012 const unsigned char *in,
1013 size_t inlen))
1014{
1015 pmeth->decrypt_init = decrypt_init;
1016 pmeth->decrypt = decrypt;
1017}
ba30bad5
DSH		 1018
1019void EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1020 int (*derive_init) (EVP_PKEY_CTX *ctx),
1021 int (*derive) (EVP_PKEY_CTX *ctx,
1022 unsigned char *key,
1023 size_t *keylen))
1024{
1025 pmeth->derive_init = derive_init;
1026 pmeth->derive = derive;
1027}
ba30bad5
DSH		 1028
1029void EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1030 int (*ctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
1031 void *p2),
1032 int (*ctrl_str) (EVP_PKEY_CTX *ctx,
1033 const char *type,
1034 const char *value))
1035{
1036 pmeth->ctrl = ctrl;
1037 pmeth->ctrl_str = ctrl_str;
1038}
e7451ed1 1039
2aee35d3
PY		 1040void EVP_PKEY_meth_set_check(EVP_PKEY_METHOD *pmeth,
1041 int (*check) (EVP_PKEY *pkey))
1042{
1043 pmeth->check = check;
1044}
1045
b0004708
PY		 1046void EVP_PKEY_meth_set_public_check(EVP_PKEY_METHOD *pmeth,
1047 int (*check) (EVP_PKEY *pkey))
1048{
1049 pmeth->public_check = check;
1050}
1051
1052void EVP_PKEY_meth_set_param_check(EVP_PKEY_METHOD *pmeth,
1053 int (*check) (EVP_PKEY *pkey))
1054{
1055 pmeth->param_check = check;
1056}
1057
0a8fdef7
PY		 1058void EVP_PKEY_meth_set_digest_custom(EVP_PKEY_METHOD *pmeth,
1059 int (*digest_custom) (EVP_PKEY_CTX *ctx,
1060 EVP_MD_CTX *mctx))
1061{
1062 pmeth->digest_custom = digest_custom;
1063}
1064
693be9a2 1065void EVP_PKEY_meth_get_init(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1066 int (**pinit) (EVP_PKEY_CTX *ctx))
1067{
1068 *pinit = pmeth->init;
1069}
1070
693be9a2 1071void EVP_PKEY_meth_get_copy(const EVP_PKEY_METHOD *pmeth,
e7451ed1 1072 int (**pcopy) (EVP_PKEY_CTX *dst,
9fdcc21f 1073 const EVP_PKEY_CTX *src))
e7451ed1
DSH		 1074{
1075 *pcopy = pmeth->copy;
1076}
1077
693be9a2 1078void EVP_PKEY_meth_get_cleanup(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1079 void (**pcleanup) (EVP_PKEY_CTX *ctx))
1080{
1081 *pcleanup = pmeth->cleanup;
1082}
1083
693be9a2 1084void EVP_PKEY_meth_get_paramgen(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1085 int (**pparamgen_init) (EVP_PKEY_CTX *ctx),
1086 int (**pparamgen) (EVP_PKEY_CTX *ctx,
1087 EVP_PKEY *pkey))
1088{
1089 if (pparamgen_init)
1090 *pparamgen_init = pmeth->paramgen_init;
1091 if (pparamgen)
1092 *pparamgen = pmeth->paramgen;
1093}
1094
693be9a2 1095void EVP_PKEY_meth_get_keygen(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1096 int (**pkeygen_init) (EVP_PKEY_CTX *ctx),
1097 int (**pkeygen) (EVP_PKEY_CTX *ctx,
1098 EVP_PKEY *pkey))
1099{
1100 if (pkeygen_init)
1101 *pkeygen_init = pmeth->keygen_init;
1102 if (pkeygen)
1103 *pkeygen = pmeth->keygen;
1104}
1105
693be9a2 1106void EVP_PKEY_meth_get_sign(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1107 int (**psign_init) (EVP_PKEY_CTX *ctx),
1108 int (**psign) (EVP_PKEY_CTX *ctx,
1109 unsigned char *sig, size_t *siglen,
1110 const unsigned char *tbs,
1111 size_t tbslen))
1112{
1113 if (psign_init)
1114 *psign_init = pmeth->sign_init;
1115 if (psign)
1116 *psign = pmeth->sign;
1117}
1118
693be9a2 1119void EVP_PKEY_meth_get_verify(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1120 int (**pverify_init) (EVP_PKEY_CTX *ctx),
1121 int (**pverify) (EVP_PKEY_CTX *ctx,
1122 const unsigned char *sig,
1123 size_t siglen,
1124 const unsigned char *tbs,
1125 size_t tbslen))
1126{
1127 if (pverify_init)
1128 *pverify_init = pmeth->verify_init;
1129 if (pverify)
1130 *pverify = pmeth->verify;
1131}
1132
693be9a2 1133void EVP_PKEY_meth_get_verify_recover(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1134 int (**pverify_recover_init) (EVP_PKEY_CTX
1135 *ctx),
1136 int (**pverify_recover) (EVP_PKEY_CTX
1137 *ctx,
1138 unsigned char
1139 *sig,
1140 size_t *siglen,
1141 const unsigned
1142 char *tbs,
1143 size_t tbslen))
1144{
1145 if (pverify_recover_init)
1146 *pverify_recover_init = pmeth->verify_recover_init;
1147 if (pverify_recover)
1148 *pverify_recover = pmeth->verify_recover;
1149}
1150
693be9a2 1151void EVP_PKEY_meth_get_signctx(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1152 int (**psignctx_init) (EVP_PKEY_CTX *ctx,
1153 EVP_MD_CTX *mctx),
1154 int (**psignctx) (EVP_PKEY_CTX *ctx,
1155 unsigned char *sig,
1156 size_t *siglen,
1157 EVP_MD_CTX *mctx))
1158{
1159 if (psignctx_init)
1160 *psignctx_init = pmeth->signctx_init;
1161 if (psignctx)
1162 *psignctx = pmeth->signctx;
1163}
1164
693be9a2 1165void EVP_PKEY_meth_get_verifyctx(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1166 int (**pverifyctx_init) (EVP_PKEY_CTX *ctx,
1167 EVP_MD_CTX *mctx),
1168 int (**pverifyctx) (EVP_PKEY_CTX *ctx,
1169 const unsigned char *sig,
1170 int siglen,
1171 EVP_MD_CTX *mctx))
1172{
1173 if (pverifyctx_init)
1174 *pverifyctx_init = pmeth->verifyctx_init;
1175 if (pverifyctx)
1176 *pverifyctx = pmeth->verifyctx;
1177}
1178
693be9a2 1179void EVP_PKEY_meth_get_encrypt(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1180 int (**pencrypt_init) (EVP_PKEY_CTX *ctx),
1181 int (**pencryptfn) (EVP_PKEY_CTX *ctx,
1182 unsigned char *out,
1183 size_t *outlen,
1184 const unsigned char *in,
1185 size_t inlen))
1186{
1187 if (pencrypt_init)
1188 *pencrypt_init = pmeth->encrypt_init;
1189 if (pencryptfn)
1190 *pencryptfn = pmeth->encrypt;
1191}
1192
693be9a2 1193void EVP_PKEY_meth_get_decrypt(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1194 int (**pdecrypt_init) (EVP_PKEY_CTX *ctx),
1195 int (**pdecrypt) (EVP_PKEY_CTX *ctx,
1196 unsigned char *out,
1197 size_t *outlen,
1198 const unsigned char *in,
1199 size_t inlen))
1200{
1201 if (pdecrypt_init)
1202 *pdecrypt_init = pmeth->decrypt_init;
1203 if (pdecrypt)
1204 *pdecrypt = pmeth->decrypt;
1205}
1206
693be9a2 1207void EVP_PKEY_meth_get_derive(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1208 int (**pderive_init) (EVP_PKEY_CTX *ctx),
1209 int (**pderive) (EVP_PKEY_CTX *ctx,
1210 unsigned char *key,
1211 size_t *keylen))
1212{
1213 if (pderive_init)
1214 *pderive_init = pmeth->derive_init;
1215 if (pderive)
1216 *pderive = pmeth->derive;
1217}
1218
693be9a2 1219void EVP_PKEY_meth_get_ctrl(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1220 int (**pctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
1221 void *p2),
1222 int (**pctrl_str) (EVP_PKEY_CTX *ctx,
1223 const char *type,
1224 const char *value))
1225{
1226 if (pctrl)
1227 *pctrl = pmeth->ctrl;
1228 if (pctrl_str)
1229 *pctrl_str = pmeth->ctrl_str;
1230}
2aee35d3 1231
693be9a2 1232void EVP_PKEY_meth_get_check(const EVP_PKEY_METHOD *pmeth,
2aee35d3
PY		 1233 int (**pcheck) (EVP_PKEY *pkey))
1234{
34f5c8b1 1235 if (pcheck != NULL)
2aee35d3
PY		 1236 *pcheck = pmeth->check;
1237}
b0004708 1238
693be9a2 1239void EVP_PKEY_meth_get_public_check(const EVP_PKEY_METHOD *pmeth,
b0004708
PY		 1240 int (**pcheck) (EVP_PKEY *pkey))
1241{
34f5c8b1 1242 if (pcheck != NULL)
b0004708
PY		 1243 *pcheck = pmeth->public_check;
1244}
1245
693be9a2 1246void EVP_PKEY_meth_get_param_check(const EVP_PKEY_METHOD *pmeth,
b0004708
PY		 1247 int (**pcheck) (EVP_PKEY *pkey))
1248{
34f5c8b1 1249 if (pcheck != NULL)
b0004708
PY		 1250 *pcheck = pmeth->param_check;
1251}
0a8fdef7
PY		 1252
1253void EVP_PKEY_meth_get_digest_custom(EVP_PKEY_METHOD *pmeth,
1254 int (**pdigest_custom) (EVP_PKEY_CTX *ctx,
1255 EVP_MD_CTX *mctx))
1256{
675f4cee 1257 if (pdigest_custom != NULL)
0a8fdef7
PY		 1258 *pdigest_custom = pmeth->digest_custom;
1259}
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