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Pass library context and property query into private key decoders
[thirdparty/openssl.git] / crypto / evp / pmeth_lib.c
CommitLineData
0f113f3e 1/*
a28d06f3 2 * Copyright 2006-2021 The OpenSSL Project Authors. All Rights Reserved.
0b6f3c66 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
0b6f3c66
DSH		 8 */
9
ada66e78 10/*
b03ec3b5 11 * Low level key APIs (DH etc) are deprecated for public use, but still ok for
ada66e78
P		 12 * internal use.
13 */
14#include "internal/deprecated.h"
15
0b6f3c66
DSH		 16#include <stdio.h>
17#include <stdlib.h>
3c27208f 18#include <openssl/engine.h>
33bed28b 19#include <openssl/evp.h>
99119000 20#include <openssl/x509v3.h>
35aca9ec
MC		 21#include <openssl/core_names.h>
22#include <openssl/dh.h>
89abd1b6 23#include <openssl/rsa.h>
ac2d58c7 24#include <openssl/kdf.h>
35aca9ec 25#include "internal/cryptlib.h"
25f2138b
DMSP		 26#include "crypto/asn1.h"
27#include "crypto/evp.h"
7165593c 28#include "crypto/dh.h"
7229a2f4 29#include "crypto/ec.h"
7165593c 30#include "internal/ffc.h"
99119000 31#include "internal/numbers.h"
390acbeb 32#include "internal/provider.h"
706457b7 33#include "evp_local.h"
0b6f3c66 34
f844f9eb 35#ifndef FIPS_MODULE
e683582b 36
86df26b3
RL		 37static int evp_pkey_ctx_store_cached_data(EVP_PKEY_CTX *ctx,
38 int keytype, int optype,
39 int cmd, const char *name,
40 const void *data, size_t data_len);
41static void evp_pkey_ctx_free_cached_data(EVP_PKEY_CTX *ctx,
42 int cmd, const char *name);
43static void evp_pkey_ctx_free_all_cached_data(EVP_PKEY_CTX *ctx);
44
19bd1fa1 45typedef const EVP_PKEY_METHOD *(*pmeth_fn)(void);
0f113f3e 46typedef int sk_cmp_fn_type(const char *const *a, const char *const *b);
5ce278a7 47
df2ee0e2 48static STACK_OF(EVP_PKEY_METHOD) *app_pkey_methods = NULL;
0b6f3c66 49
cefa762e 50/* This array needs to be in order of NIDs */
19bd1fa1 51static pmeth_fn standard_methods[] = {
23b2fc0b 52 ossl_rsa_pkey_method,
e683582b 53# ifndef OPENSSL_NO_DH
19dbb742 54 ossl_dh_pkey_method,
e683582b
SL		 55# endif
56# ifndef OPENSSL_NO_DSA
5af02212 57 ossl_dsa_pkey_method,
e683582b
SL		 58# endif
59# ifndef OPENSSL_NO_EC
32ab57cb 60 ossl_ec_pkey_method,
e683582b 61# endif
23b2fc0b 62 ossl_rsa_pss_pkey_method,
e683582b 63# ifndef OPENSSL_NO_DH
19dbb742 64 ossl_dhx_pkey_method,
e683582b 65# endif
e683582b 66# ifndef OPENSSL_NO_EC
32ab57cb
SL		 67 ossl_ecx25519_pkey_method,
68 ossl_ecx448_pkey_method,
e683582b 69# endif
e683582b 70# ifndef OPENSSL_NO_EC
32ab57cb
SL		 71 ossl_ed25519_pkey_method,
72 ossl_ed448_pkey_method,
e683582b 73# endif
0f113f3e 74};
0b6f3c66 75
19bd1fa1
PS		 76DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, pmeth_fn, pmeth_func);
77
78static int pmeth_func_cmp(const EVP_PKEY_METHOD *const *a, pmeth_fn const *b)
79{
80 return ((*a)->pkey_id - ((**b)())->pkey_id);
81}
82
83IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, pmeth_fn, pmeth_func);
babb3798 84
0f113f3e
MC		 85static int pmeth_cmp(const EVP_PKEY_METHOD *const *a,
86 const EVP_PKEY_METHOD *const *b)
87{
88 return ((*a)->pkey_id - (*b)->pkey_id);
89}
0b6f3c66 90
60488d24 91static const EVP_PKEY_METHOD *evp_pkey_meth_find_added_by_application(int type)
0f113f3e 92{
60488d24 93 if (app_pkey_methods != NULL) {
0f113f3e 94 int idx;
60488d24
RL		 95 EVP_PKEY_METHOD tmp;
96
97 tmp.pkey_id = type;
0f113f3e
MC		 98 idx = sk_EVP_PKEY_METHOD_find(app_pkey_methods, &tmp);
99 if (idx >= 0)
100 return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx);
101 }
60488d24
RL		 102 return NULL;
103}
104
105const EVP_PKEY_METHOD *EVP_PKEY_meth_find(int type)
106{
107 pmeth_fn *ret;
108 EVP_PKEY_METHOD tmp;
109 const EVP_PKEY_METHOD *t;
110
111 if ((t = evp_pkey_meth_find_added_by_application(type)) != NULL)
112 return t;
113
114 tmp.pkey_id = type;
115 t = &tmp;
19bd1fa1 116 ret = OBJ_bsearch_pmeth_func(&t, standard_methods,
60488d24 117 OSSL_NELEM(standard_methods));
12a765a5 118 if (ret == NULL || *ret == NULL)
0f113f3e 119 return NULL;
19bd1fa1 120 return (**ret)();
0f113f3e 121}
0b6f3c66 122
e683582b
SL		 123EVP_PKEY_METHOD *EVP_PKEY_meth_new(int id, int flags)
124{
125 EVP_PKEY_METHOD *pmeth;
126
127 pmeth = OPENSSL_zalloc(sizeof(*pmeth));
128 if (pmeth == NULL) {
9311d0c4 129 ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
e683582b
SL		 130 return NULL;
131 }
132
133 pmeth->pkey_id = id;
134 pmeth->flags = flags | EVP_PKEY_FLAG_DYNAMIC;
135 return pmeth;
136}
50914496 137
e19246dc
RL		 138static void help_get_legacy_alg_type_from_keymgmt(const char *keytype,
139 void *arg)
140{
141 int *type = arg;
142
143 if (*type == NID_undef)
144 *type = evp_pkey_name2type(keytype);
145}
86df26b3 146
e19246dc
RL		 147static int get_legacy_alg_type_from_keymgmt(const EVP_KEYMGMT *keymgmt)
148{
149 int type = NID_undef;
150
151 EVP_KEYMGMT_names_do_all(keymgmt, help_get_legacy_alg_type_from_keymgmt,
152 &type);
153 return type;
154}
155#endif /* FIPS_MODULE */
156
157int evp_pkey_ctx_state(const EVP_PKEY_CTX *ctx)
86df26b3
RL		 158{
159 if (ctx->operation == EVP_PKEY_OP_UNDEFINED)
160 return EVP_PKEY_STATE_UNKNOWN;
161
162 if ((EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
7c14d0c1 163 && ctx->op.kex.algctx != NULL)
86df26b3 164 || (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
7c14d0c1 165 && ctx->op.sig.algctx != NULL)
86df26b3 166 || (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
7c14d0c1 167 && ctx->op.ciph.algctx != NULL)
86df26b3 168 || (EVP_PKEY_CTX_IS_GEN_OP(ctx)
80f4fd18
SL		 169 && ctx->op.keymgmt.genctx != NULL)
170 || (EVP_PKEY_CTX_IS_KEM_OP(ctx)
7c14d0c1 171 && ctx->op.encap.algctx != NULL))
86df26b3
RL		 172 return EVP_PKEY_STATE_PROVIDER;
173
174 return EVP_PKEY_STATE_LEGACY;
175}
176
b4250010 177static EVP_PKEY_CTX *int_ctx_new(OSSL_LIB_CTX *libctx,
3ee348b0 178 EVP_PKEY *pkey, ENGINE *e,
4b9e90f4 179 const char *keytype, const char *propquery,
a07c17ef 180 int id)
e683582b 181
0f113f3e 182{
50914496 183 EVP_PKEY_CTX *ret = NULL;
d0ea49a8 184 const EVP_PKEY_METHOD *pmeth = NULL;
4b9e90f4 185 EVP_KEYMGMT *keymgmt = NULL;
d0ea49a8
RL		 186
187 /*
50914496 188 * If the given |pkey| is provided, we extract the keytype from its
5e5bc836 189 * keymgmt and skip over the legacy code.
982efd77 190 */
5e5bc836 191 if (pkey != NULL && evp_pkey_is_provided(pkey)) {
982efd77
RL		 192 /* If we have an engine, something went wrong somewhere... */
193 if (!ossl_assert(e == NULL))
194 return NULL;
6c9bc258 195 keytype = EVP_KEYMGMT_name(pkey->keymgmt);
982efd77
RL		 196 goto common;
197 }
50914496 198
f844f9eb 199#ifndef FIPS_MODULE
0be6cf0c 200 /* Code below to be removed when legacy support is dropped. */
d0ea49a8 201 /* BEGIN legacy */
0f113f3e 202 if (id == -1) {
50914496
RL		 203 if (pkey != NULL)
204 id = pkey->type;
205 else if (keytype != NULL)
206 id = evp_pkey_name2type(keytype);
207 if (id == NID_undef)
208 id = -1;
0f113f3e 209 }
50914496
RL		 210 /* If no ID was found here, we can only resort to find a keymgmt */
211 if (id == -1)
212 goto common;
60653e5b
RL		 213
214 /*
215 * Here, we extract what information we can for the purpose of
216 * supporting usage with implementations from providers, to make
217 * for a smooth transition from legacy stuff to provider based stuff.
218 *
219 * If an engine is given, this is entirely legacy, and we should not
220 * pretend anything else, so we only set the name when no engine is
221 * given. If both are already given, someone made a mistake, and
222 * since that can only happen internally, it's safe to make an
223 * assertion.
224 */
4b9e90f4 225 if (!ossl_assert(e == NULL || keytype == NULL))
60653e5b 226 return NULL;
b247113c 227 if (e == NULL && (pkey == NULL || pkey->foreign == 0))
4b9e90f4 228 keytype = OBJ_nid2sn(id);
60653e5b 229
e683582b 230# ifndef OPENSSL_NO_ENGINE
c2976edf 231 if (e == NULL && pkey != NULL)
d19b01ad 232 e = pkey->pmeth_engine != NULL ? pkey->pmeth_engine : pkey->engine;
0f113f3e
MC		 233 /* Try to find an ENGINE which implements this method */
234 if (e) {
235 if (!ENGINE_init(e)) {
9311d0c4 236 ERR_raise(ERR_LIB_EVP, ERR_R_ENGINE_LIB);
0f113f3e
MC		 237 return NULL;
238 }
c2976edf 239 } else {
0f113f3e 240 e = ENGINE_get_pkey_meth_engine(id);
c2976edf 241 }
0f113f3e
MC		 242
243 /*
0d4fb843 244 * If an ENGINE handled this method look it up. Otherwise use internal
0f113f3e
MC		 245 * tables.
246 */
50914496 247 if (e != NULL)
0f113f3e 248 pmeth = ENGINE_get_pkey_meth(e, id);
b247113c
TM		 249 else if (pkey != NULL && pkey->foreign)
250 pmeth = EVP_PKEY_meth_find(id);
50914496 251 else
e683582b 252# endif
60488d24 253 pmeth = evp_pkey_meth_find_added_by_application(id);
c9777d26 254
d0ea49a8 255 /* END legacy */
f844f9eb 256#endif /* FIPS_MODULE */
d0ea49a8 257 common:
4b9e90f4
RL		 258 /*
259 * If there's no engine and there's a name, we try fetching a provider
260 * implementation.
261 */
5fcb97c6 262 if (e == NULL && keytype != NULL) {
4b9e90f4 263 keymgmt = EVP_KEYMGMT_fetch(libctx, keytype, propquery);
d0b79f86 264 if (keymgmt == NULL)
50914496
RL		 265 return NULL; /* EVP_KEYMGMT_fetch() recorded an error */
266
267#ifndef FIPS_MODULE
268 /*
269 * Chase down the legacy NID, as that might be needed for diverse
270 * purposes, such as ensure that EVP_PKEY_type() can return sensible
b574c6a9 271 * values. We go through all keymgmt names, because the keytype
50914496
RL		 272 * that's passed to this function doesn't necessarily translate
273 * directly.
274 * TODO: Remove this when #legacy keys are gone.
275 */
276 if (keymgmt != NULL) {
277 int tmp_id = get_legacy_alg_type_from_keymgmt(keymgmt);
278
279 if (tmp_id != NID_undef) {
280 if (id == -1) {
281 id = tmp_id;
282 } else {
283 /*
284 * It really really shouldn't differ. If it still does,
285 * something is very wrong.
286 */
287 if (!ossl_assert(id == tmp_id)) {
9311d0c4 288 ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR);
50914496
RL		 289 EVP_KEYMGMT_free(keymgmt);
290 return NULL;
291 }
292 }
293 }
b533510f 294 }
50914496
RL		 295#endif
296 }
297
298 if (pmeth == NULL && keymgmt == NULL) {
9311d0c4 299 ERR_raise(ERR_LIB_EVP, EVP_R_UNSUPPORTED_ALGORITHM);
50914496
RL		 300 } else {
301 ret = OPENSSL_zalloc(sizeof(*ret));
302 if (ret == NULL)
9311d0c4 303 ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
5fcb97c6 304 }
4b9e90f4 305
f844f9eb 306#if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODULE)
50914496 307 if ((ret == NULL || pmeth == NULL) && e != NULL)
7c96dbcd 308 ENGINE_finish(e);
a63bf2c5 309#endif
50914496
RL		 310
311 if (ret == NULL) {
312 EVP_KEYMGMT_free(keymgmt);
0f113f3e
MC		 313 return NULL;
314 }
ddfd7182
SL		 315 if (propquery != NULL) {
316 ret->propquery = OPENSSL_strdup(propquery);
317 if (ret->propquery == NULL) {
7153f544 318 OPENSSL_free(ret);
ddfd7182
SL		 319 EVP_KEYMGMT_free(keymgmt);
320 return NULL;
321 }
322 }
3ee348b0 323 ret->libctx = libctx;
4b9e90f4
RL		 324 ret->keytype = keytype;
325 ret->keymgmt = keymgmt;
50914496 326 ret->legacy_keytype = id; /* TODO: Remove when #legacy key are gone */
0f113f3e
MC		 327 ret->engine = e;
328 ret->pmeth = pmeth;
329 ret->operation = EVP_PKEY_OP_UNDEFINED;
330 ret->pkey = pkey;
a6465b3f 331 if (pkey != NULL)
03273d61 332 EVP_PKEY_up_ref(pkey);
0f113f3e 333
8b84b075 334 if (pmeth != NULL && pmeth->init != NULL) {
0f113f3e 335 if (pmeth->init(ret) <= 0) {
83b4049a 336 ret->pmeth = NULL;
0f113f3e
MC		 337 EVP_PKEY_CTX_free(ret);
338 return NULL;
339 }
340 }
341
342 return ret;
343}
344
f844f9eb 345/*- All methods below can also be used in FIPS_MODULE */
e683582b 346
b4250010 347EVP_PKEY_CTX *EVP_PKEY_CTX_new_from_name(OSSL_LIB_CTX *libctx,
e683582b
SL		 348 const char *name,
349 const char *propquery)
350{
351 return int_ctx_new(libctx, NULL, NULL, name, propquery, -1);
352}
353
b4250010 354EVP_PKEY_CTX *EVP_PKEY_CTX_new_from_pkey(OSSL_LIB_CTX *libctx, EVP_PKEY *pkey,
2ee4a50a 355 const char *propquery)
e683582b 356{
2ee4a50a 357 return int_ctx_new(libctx, pkey, NULL, NULL, propquery, -1);
e683582b
SL		 358}
359
864b89ce
MC		 360void evp_pkey_ctx_free_old_ops(EVP_PKEY_CTX *ctx)
361{
e683582b 362 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
7c14d0c1
SL		 363 if (ctx->op.sig.algctx != NULL && ctx->op.sig.signature != NULL)
364 ctx->op.sig.signature->freectx(ctx->op.sig.algctx);
864b89ce 365 EVP_SIGNATURE_free(ctx->op.sig.signature);
7c14d0c1 366 ctx->op.sig.algctx = NULL;
fb1ecf85 367 ctx->op.sig.signature = NULL;
62f49b90 368 } else if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
7c14d0c1
SL		 369 if (ctx->op.kex.algctx != NULL && ctx->op.kex.exchange != NULL)
370 ctx->op.kex.exchange->freectx(ctx->op.kex.algctx);
e683582b 371 EVP_KEYEXCH_free(ctx->op.kex.exchange);
7c14d0c1 372 ctx->op.kex.algctx = NULL;
e683582b 373 ctx->op.kex.exchange = NULL;
80f4fd18 374 } else if (EVP_PKEY_CTX_IS_KEM_OP(ctx)) {
7c14d0c1
SL		 375 if (ctx->op.encap.algctx != NULL && ctx->op.encap.kem != NULL)
376 ctx->op.encap.kem->freectx(ctx->op.encap.algctx);
80f4fd18 377 EVP_KEM_free(ctx->op.encap.kem);
7c14d0c1 378 ctx->op.encap.algctx = NULL;
80f4fd18
SL		 379 ctx->op.encap.kem = NULL;
380 }
381 else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)) {
7c14d0c1
SL		 382 if (ctx->op.ciph.algctx != NULL && ctx->op.ciph.cipher != NULL)
383 ctx->op.ciph.cipher->freectx(ctx->op.ciph.algctx);
2c938e2e 384 EVP_ASYM_CIPHER_free(ctx->op.ciph.cipher);
7c14d0c1 385 ctx->op.ciph.algctx = NULL;
2c938e2e 386 ctx->op.ciph.cipher = NULL;
62924755
RL		 387 } else if (EVP_PKEY_CTX_IS_GEN_OP(ctx)) {
388 if (ctx->op.keymgmt.genctx != NULL && ctx->keymgmt != NULL)
389 evp_keymgmt_gen_cleanup(ctx->keymgmt, ctx->op.keymgmt.genctx);
864b89ce
MC		 390 }
391}
392
e683582b 393void EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx)
0f113f3e 394{
e683582b
SL		 395 if (ctx == NULL)
396 return;
397 if (ctx->pmeth && ctx->pmeth->cleanup)
398 ctx->pmeth->cleanup(ctx);
b4faea50 399
e683582b 400 evp_pkey_ctx_free_old_ops(ctx);
86df26b3
RL		 401#ifndef FIPS_MODULE
402 evp_pkey_ctx_free_all_cached_data(ctx);
403#endif
e683582b 404 EVP_KEYMGMT_free(ctx->keymgmt);
0f113f3e 405
ddfd7182 406 OPENSSL_free(ctx->propquery);
e683582b
SL		 407 EVP_PKEY_free(ctx->pkey);
408 EVP_PKEY_free(ctx->peerkey);
f844f9eb 409#if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODULE)
e683582b
SL		 410 ENGINE_finish(ctx->engine);
411#endif
3786d748 412 BN_free(ctx->rsa_pubexp);
e683582b 413 OPENSSL_free(ctx);
0f113f3e 414}
ba30bad5 415
f844f9eb 416#ifndef FIPS_MODULE
e683582b 417
f830c68f 418void EVP_PKEY_meth_get0_info(int *ppkey_id, int *pflags,
0f113f3e
MC		 419 const EVP_PKEY_METHOD *meth)
420{
421 if (ppkey_id)
422 *ppkey_id = meth->pkey_id;
423 if (pflags)
424 *pflags = meth->flags;
425}
f830c68f
DSH		 426
427void EVP_PKEY_meth_copy(EVP_PKEY_METHOD *dst, const EVP_PKEY_METHOD *src)
0f113f3e 428{
4cbb196b
AT		 429 int pkey_id = dst->pkey_id;
430 int flags = dst->flags;
f830c68f 431
4cbb196b 432 *dst = *src;
f830c68f 433
4cbb196b
AT		 434 /* We only copy the function pointers so restore the other values */
435 dst->pkey_id = pkey_id;
436 dst->flags = flags;
0f113f3e 437}
f830c68f 438
ba30bad5 439void EVP_PKEY_meth_free(EVP_PKEY_METHOD *pmeth)
0f113f3e
MC		 440{
441 if (pmeth && (pmeth->flags & EVP_PKEY_FLAG_DYNAMIC))
442 OPENSSL_free(pmeth);
443}
ba30bad5 444
f5cda4cb 445EVP_PKEY_CTX *EVP_PKEY_CTX_new(EVP_PKEY *pkey, ENGINE *e)
0f113f3e 446{
3ee348b0 447 return int_ctx_new(NULL, pkey, e, NULL, NULL, -1);
0f113f3e 448}
f5cda4cb
DSH		 449
450EVP_PKEY_CTX *EVP_PKEY_CTX_new_id(int id, ENGINE *e)
0f113f3e 451{
3ee348b0 452 return int_ctx_new(NULL, NULL, e, NULL, NULL, id);
a07c17ef
RL		 453}
454
9fdcc21f 455EVP_PKEY_CTX *EVP_PKEY_CTX_dup(const EVP_PKEY_CTX *pctx)
0f113f3e
MC		 456{
457 EVP_PKEY_CTX *rctx;
ff64702b 458
e683582b 459# ifndef OPENSSL_NO_ENGINE
0f113f3e
MC		 460 /* Make sure it's safe to copy a pkey context using an ENGINE */
461 if (pctx->engine && !ENGINE_init(pctx->engine)) {
9311d0c4 462 ERR_raise(ERR_LIB_EVP, ERR_R_ENGINE_LIB);
0f113f3e
MC		 463 return 0;
464 }
e683582b 465# endif
ff64702b 466 rctx = OPENSSL_zalloc(sizeof(*rctx));
3484236d 467 if (rctx == NULL) {
9311d0c4 468 ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
0f113f3e 469 return NULL;
3484236d 470 }
8bdcef40 471
ff64702b
MC		 472 if (pctx->pkey != NULL)
473 EVP_PKEY_up_ref(pctx->pkey);
474 rctx->pkey = pctx->pkey;
475 rctx->operation = pctx->operation;
3ee348b0 476 rctx->libctx = pctx->libctx;
f23bc0b7 477 rctx->keytype = pctx->keytype;
ddfd7182
SL		 478 rctx->propquery = NULL;
479 if (pctx->propquery != NULL) {
480 rctx->propquery = OPENSSL_strdup(pctx->propquery);
74cd923a
RL		 481 if (rctx->propquery == NULL)
482 goto err;
ddfd7182 483 }
ac7750bb 484 rctx->legacy_keytype = pctx->legacy_keytype;
ff64702b 485
864b89ce
MC		 486 if (EVP_PKEY_CTX_IS_DERIVE_OP(pctx)) {
487 if (pctx->op.kex.exchange != NULL) {
488 rctx->op.kex.exchange = pctx->op.kex.exchange;
ac7750bb 489 if (!EVP_KEYEXCH_up_ref(rctx->op.kex.exchange))
74cd923a 490 goto err;
ff64702b 491 }
7c14d0c1 492 if (pctx->op.kex.algctx != NULL) {
864b89ce 493 if (!ossl_assert(pctx->op.kex.exchange != NULL))
74cd923a 494 goto err;
7c14d0c1
SL		 495 rctx->op.kex.algctx
496 = pctx->op.kex.exchange->dupctx(pctx->op.kex.algctx);
497 if (rctx->op.kex.algctx == NULL) {
864b89ce 498 EVP_KEYEXCH_free(rctx->op.kex.exchange);
74cd923a 499 goto err;
864b89ce
MC		 500 }
501 return rctx;
502 }
503 } else if (EVP_PKEY_CTX_IS_SIGNATURE_OP(pctx)) {
504 if (pctx->op.sig.signature != NULL) {
505 rctx->op.sig.signature = pctx->op.sig.signature;
ac7750bb 506 if (!EVP_SIGNATURE_up_ref(rctx->op.sig.signature))
74cd923a 507 goto err;
864b89ce 508 }
7c14d0c1 509 if (pctx->op.sig.algctx != NULL) {
864b89ce 510 if (!ossl_assert(pctx->op.sig.signature != NULL))
74cd923a 511 goto err;
7c14d0c1
SL		 512 rctx->op.sig.algctx
513 = pctx->op.sig.signature->dupctx(pctx->op.sig.algctx);
514 if (rctx->op.sig.algctx == NULL) {
864b89ce 515 EVP_SIGNATURE_free(rctx->op.sig.signature);
74cd923a 516 goto err;
864b89ce
MC		 517 }
518 return rctx;
ff64702b 519 }
2c938e2e
MC		 520 } else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(pctx)) {
521 if (pctx->op.ciph.cipher != NULL) {
522 rctx->op.ciph.cipher = pctx->op.ciph.cipher;
ac7750bb 523 if (!EVP_ASYM_CIPHER_up_ref(rctx->op.ciph.cipher))
74cd923a 524 goto err;
2c938e2e 525 }
7c14d0c1 526 if (pctx->op.ciph.algctx != NULL) {
2c938e2e 527 if (!ossl_assert(pctx->op.ciph.cipher != NULL))
74cd923a 528 goto err;
7c14d0c1
SL		 529 rctx->op.ciph.algctx
530 = pctx->op.ciph.cipher->dupctx(pctx->op.ciph.algctx);
531 if (rctx->op.ciph.algctx == NULL) {
2c938e2e 532 EVP_ASYM_CIPHER_free(rctx->op.ciph.cipher);
74cd923a 533 goto err;
2c938e2e
MC		 534 }
535 return rctx;
536 }
80f4fd18
SL		 537 } else if (EVP_PKEY_CTX_IS_KEM_OP(pctx)) {
538 if (pctx->op.encap.kem != NULL) {
539 rctx->op.encap.kem = pctx->op.encap.kem;
ac7750bb 540 if (!EVP_KEM_up_ref(rctx->op.encap.kem))
74cd923a 541 goto err;
80f4fd18 542 }
7c14d0c1 543 if (pctx->op.encap.algctx != NULL) {
80f4fd18 544 if (!ossl_assert(pctx->op.encap.kem != NULL))
74cd923a 545 goto err;
7c14d0c1
SL		 546 rctx->op.encap.algctx
547 = pctx->op.encap.kem->dupctx(pctx->op.encap.algctx);
548 if (rctx->op.encap.algctx == NULL) {
80f4fd18 549 EVP_KEM_free(rctx->op.encap.kem);
74cd923a 550 goto err;
80f4fd18
SL		 551 }
552 return rctx;
553 }
ac7750bb
SL		 554 } else if (EVP_PKEY_CTX_IS_GEN_OP(pctx)) {
555 /* Not supported - This would need a gen_dupctx() to work */
74cd923a 556 goto err;
ff64702b
MC		 557 }
558
0f113f3e 559 rctx->pmeth = pctx->pmeth;
e683582b 560# ifndef OPENSSL_NO_ENGINE
0f113f3e 561 rctx->engine = pctx->engine;
e683582b 562# endif
8bdcef40 563
ac7750bb 564 if (pctx->peerkey != NULL)
03273d61 565 EVP_PKEY_up_ref(pctx->peerkey);
0f113f3e 566 rctx->peerkey = pctx->peerkey;
8bdcef40 567
ac7750bb
SL		 568 if (pctx->pmeth == NULL) {
569 if (rctx->operation == EVP_PKEY_OP_UNDEFINED) {
570 EVP_KEYMGMT *tmp_keymgmt = pctx->keymgmt;
571 void *provkey;
572
573 provkey = evp_pkey_export_to_provider(pctx->pkey, pctx->libctx,
574 &tmp_keymgmt, pctx->propquery);
575 if (provkey == NULL)
576 goto err;
577 if (!EVP_KEYMGMT_up_ref(tmp_keymgmt))
578 goto err;
579 EVP_KEYMGMT_free(rctx->keymgmt);
580 rctx->keymgmt = tmp_keymgmt;
581 return rctx;
582 }
74cd923a 583 } else if (pctx->pmeth->copy(rctx, pctx) > 0) {
0f113f3e 584 return rctx;
74cd923a 585 }
ac7750bb 586err:
83b4049a 587 rctx->pmeth = NULL;
0f113f3e
MC		 588 EVP_PKEY_CTX_free(rctx);
589 return NULL;
0f113f3e 590}
8bdcef40 591
ba30bad5 592int EVP_PKEY_meth_add0(const EVP_PKEY_METHOD *pmeth)
0f113f3e
MC		 593{
594 if (app_pkey_methods == NULL) {
595 app_pkey_methods = sk_EVP_PKEY_METHOD_new(pmeth_cmp);
3484236d 596 if (app_pkey_methods == NULL){
9311d0c4 597 ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
0f113f3e 598 return 0;
3484236d 599 }
0f113f3e 600 }
3484236d 601 if (!sk_EVP_PKEY_METHOD_push(app_pkey_methods, pmeth)) {
9311d0c4 602 ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
0f113f3e 603 return 0;
3484236d 604 }
0f113f3e
MC		 605 sk_EVP_PKEY_METHOD_sort(app_pkey_methods);
606 return 1;
607}
ba30bad5 608
0822e89a
PY		 609void evp_app_cleanup_int(void)
610{
611 if (app_pkey_methods != NULL)
612 sk_EVP_PKEY_METHOD_pop_free(app_pkey_methods, EVP_PKEY_meth_free);
613}
614
615int EVP_PKEY_meth_remove(const EVP_PKEY_METHOD *pmeth)
616{
617 const EVP_PKEY_METHOD *ret;
618
619 ret = sk_EVP_PKEY_METHOD_delete_ptr(app_pkey_methods, pmeth);
620
621 return ret == NULL ? 0 : 1;
622}
623
48ed9c23
DSH		 624size_t EVP_PKEY_meth_get_count(void)
625{
626 size_t rv = OSSL_NELEM(standard_methods);
627
628 if (app_pkey_methods)
629 rv += sk_EVP_PKEY_METHOD_num(app_pkey_methods);
630 return rv;
631}
632
633const EVP_PKEY_METHOD *EVP_PKEY_meth_get0(size_t idx)
634{
635 if (idx < OSSL_NELEM(standard_methods))
19bd1fa1 636 return (standard_methods[idx])();
48ed9c23
DSH		 637 if (app_pkey_methods == NULL)
638 return NULL;
639 idx -= OSSL_NELEM(standard_methods);
640 if (idx >= (size_t)sk_EVP_PKEY_METHOD_num(app_pkey_methods))
641 return NULL;
642 return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx);
643}
e683582b 644#endif
48ed9c23 645
6179dfc7
RL		 646int EVP_PKEY_CTX_is_a(EVP_PKEY_CTX *ctx, const char *keytype)
647{
648#ifndef FIPS_MODULE
649 if (evp_pkey_ctx_is_legacy(ctx))
650 return (ctx->pmeth->pkey_id == evp_pkey_name2type(keytype));
651#endif
652 return EVP_KEYMGMT_is_a(ctx->keymgmt, keytype);
653}
654
56784203 655int EVP_PKEY_CTX_set_params(EVP_PKEY_CTX *ctx, const OSSL_PARAM *params)
0f113f3e 656{
6fcd92d3
RL		 657 switch (evp_pkey_ctx_state(ctx)) {
658 case EVP_PKEY_STATE_PROVIDER:
659 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
e683582b
SL		 660 && ctx->op.kex.exchange != NULL
661 && ctx->op.kex.exchange->set_ctx_params != NULL)
6fcd92d3 662 return
7c14d0c1 663 ctx->op.kex.exchange->set_ctx_params(ctx->op.kex.algctx,
6fcd92d3
RL		 664 params);
665 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
e683582b
SL		 666 && ctx->op.sig.signature != NULL
667 && ctx->op.sig.signature->set_ctx_params != NULL)
6fcd92d3 668 return
7c14d0c1 669 ctx->op.sig.signature->set_ctx_params(ctx->op.sig.algctx,
6fcd92d3
RL		 670 params);
671 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
e683582b
SL		 672 && ctx->op.ciph.cipher != NULL
673 && ctx->op.ciph.cipher->set_ctx_params != NULL)
6fcd92d3 674 return
7c14d0c1 675 ctx->op.ciph.cipher->set_ctx_params(ctx->op.ciph.algctx,
6fcd92d3
RL		 676 params);
677 if (EVP_PKEY_CTX_IS_GEN_OP(ctx)
678 && ctx->keymgmt != NULL
679 && ctx->keymgmt->gen_set_params != NULL)
680 return
681 evp_keymgmt_gen_set_params(ctx->keymgmt, ctx->op.keymgmt.genctx,
682 params);
683 if (EVP_PKEY_CTX_IS_KEM_OP(ctx)
684 && ctx->op.encap.kem != NULL
685 && ctx->op.encap.kem->set_ctx_params != NULL)
686 return
7c14d0c1 687 ctx->op.encap.kem->set_ctx_params(ctx->op.encap.algctx,
6fcd92d3
RL		 688 params);
689 break;
690#ifndef FIPS_MODULE
691 case EVP_PKEY_STATE_UNKNOWN:
692 case EVP_PKEY_STATE_LEGACY:
693 return evp_pkey_ctx_set_params_to_ctrl(ctx, params);
694#endif
695 }
e683582b 696 return 0;
0f113f3e 697}
5da98aa6 698
9c45222d
MC		 699int EVP_PKEY_CTX_get_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
700{
6fcd92d3
RL		 701 switch (evp_pkey_ctx_state(ctx)) {
702 case EVP_PKEY_STATE_PROVIDER:
703 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
4fe54d67
NT		 704 && ctx->op.kex.exchange != NULL
705 && ctx->op.kex.exchange->get_ctx_params != NULL)
6fcd92d3 706 return
7c14d0c1 707 ctx->op.kex.exchange->get_ctx_params(ctx->op.kex.algctx,
6fcd92d3
RL		 708 params);
709 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
864b89ce
MC		 710 && ctx->op.sig.signature != NULL
711 && ctx->op.sig.signature->get_ctx_params != NULL)
6fcd92d3 712 return
7c14d0c1 713 ctx->op.sig.signature->get_ctx_params(ctx->op.sig.algctx,
6fcd92d3
RL		 714 params);
715 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
2c938e2e
MC		 716 && ctx->op.ciph.cipher != NULL
717 && ctx->op.ciph.cipher->get_ctx_params != NULL)
6fcd92d3 718 return
7c14d0c1 719 ctx->op.ciph.cipher->get_ctx_params(ctx->op.ciph.algctx,
6fcd92d3
RL		 720 params);
721 if (EVP_PKEY_CTX_IS_KEM_OP(ctx)
722 && ctx->op.encap.kem != NULL
723 && ctx->op.encap.kem->get_ctx_params != NULL)
724 return
7c14d0c1 725 ctx->op.encap.kem->get_ctx_params(ctx->op.encap.algctx,
6fcd92d3
RL		 726 params);
727 break;
728#ifndef FIPS_MODULE
729 case EVP_PKEY_STATE_UNKNOWN:
730 case EVP_PKEY_STATE_LEGACY:
731 return evp_pkey_ctx_get_params_to_ctrl(ctx, params);
732#endif
733 }
9c45222d
MC		 734 return 0;
735}
736
11a1b341 737#ifndef FIPS_MODULE
56784203 738const OSSL_PARAM *EVP_PKEY_CTX_gettable_params(const EVP_PKEY_CTX *ctx)
9c45222d 739{
18ec26ba
P		 740 void *provctx;
741
4fe54d67
NT		 742 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
743 && ctx->op.kex.exchange != NULL
18ec26ba
P		 744 && ctx->op.kex.exchange->gettable_ctx_params != NULL) {
745 provctx = ossl_provider_ctx(EVP_KEYEXCH_provider(ctx->op.kex.exchange));
7c14d0c1 746 return ctx->op.kex.exchange->gettable_ctx_params(ctx->op.kex.algctx,
fb67126e 747 provctx);
18ec26ba 748 }
864b89ce
MC		 749 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
750 && ctx->op.sig.signature != NULL
18ec26ba
P		 751 && ctx->op.sig.signature->gettable_ctx_params != NULL) {
752 provctx = ossl_provider_ctx(
753 EVP_SIGNATURE_provider(ctx->op.sig.signature));
7c14d0c1 754 return ctx->op.sig.signature->gettable_ctx_params(ctx->op.sig.algctx,
fb67126e 755 provctx);
18ec26ba 756 }
2c938e2e
MC		 757 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
758 && ctx->op.ciph.cipher != NULL
18ec26ba
P		 759 && ctx->op.ciph.cipher->gettable_ctx_params != NULL) {
760 provctx = ossl_provider_ctx(
761 EVP_ASYM_CIPHER_provider(ctx->op.ciph.cipher));
7c14d0c1 762 return ctx->op.ciph.cipher->gettable_ctx_params(ctx->op.ciph.algctx,
fb67126e 763 provctx);
18ec26ba 764 }
80f4fd18
SL		 765 if (EVP_PKEY_CTX_IS_KEM_OP(ctx)
766 && ctx->op.encap.kem != NULL
767 && ctx->op.encap.kem->gettable_ctx_params != NULL) {
768 provctx = ossl_provider_ctx(EVP_KEM_provider(ctx->op.encap.kem));
7c14d0c1 769 return ctx->op.encap.kem->gettable_ctx_params(ctx->op.encap.algctx,
fb67126e 770 provctx);
80f4fd18 771 }
9c45222d
MC		 772 return NULL;
773}
774
56784203 775const OSSL_PARAM *EVP_PKEY_CTX_settable_params(const EVP_PKEY_CTX *ctx)
9c45222d 776{
18ec26ba
P		 777 void *provctx;
778
864b89ce
MC		 779 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
780 && ctx->op.kex.exchange != NULL
18ec26ba
P		 781 && ctx->op.kex.exchange->settable_ctx_params != NULL) {
782 provctx = ossl_provider_ctx(EVP_KEYEXCH_provider(ctx->op.kex.exchange));
7c14d0c1 783 return ctx->op.kex.exchange->settable_ctx_params(ctx->op.kex.algctx,
fb67126e 784 provctx);
18ec26ba 785 }
864b89ce
MC		 786 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
787 && ctx->op.sig.signature != NULL
18ec26ba
P		 788 && ctx->op.sig.signature->settable_ctx_params != NULL) {
789 provctx = ossl_provider_ctx(
790 EVP_SIGNATURE_provider(ctx->op.sig.signature));
7c14d0c1 791 return ctx->op.sig.signature->settable_ctx_params(ctx->op.sig.algctx,
fb67126e 792 provctx);
18ec26ba 793 }
2c938e2e
MC		 794 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
795 && ctx->op.ciph.cipher != NULL
18ec26ba
P		 796 && ctx->op.ciph.cipher->settable_ctx_params != NULL) {
797 provctx = ossl_provider_ctx(
798 EVP_ASYM_CIPHER_provider(ctx->op.ciph.cipher));
7c14d0c1 799 return ctx->op.ciph.cipher->settable_ctx_params(ctx->op.ciph.algctx,
fb67126e 800 provctx);
18ec26ba 801 }
62924755 802 if (EVP_PKEY_CTX_IS_GEN_OP(ctx)
fb67126e
TM		 803 && ctx->keymgmt != NULL
804 && ctx->keymgmt->gen_settable_params != NULL) {
805 provctx = ossl_provider_ctx(EVP_KEYMGMT_provider(ctx->keymgmt));
806 return ctx->keymgmt->gen_settable_params(ctx->op.keymgmt.genctx,
807 provctx);
808 }
80f4fd18
SL		 809 if (EVP_PKEY_CTX_IS_KEM_OP(ctx)
810 && ctx->op.encap.kem != NULL
811 && ctx->op.encap.kem->settable_ctx_params != NULL) {
812 provctx = ossl_provider_ctx(EVP_KEM_provider(ctx->op.encap.kem));
7c14d0c1 813 return ctx->op.encap.kem->settable_ctx_params(ctx->op.encap.algctx,
fb67126e 814 provctx);
80f4fd18 815 }
9c45222d
MC		 816 return NULL;
817}
818
4fe54d67
NT		 819/*
820 * Internal helpers for stricter EVP_PKEY_CTX_{set,get}_params().
821 *
822 * Return 1 on success, 0 or negative for errors.
823 *
824 * In particular they return -2 if any of the params is not supported.
825 *
f844f9eb 826 * They are not available in FIPS_MODULE as they depend on
4fe54d67
NT		 827 * - EVP_PKEY_CTX_{get,set}_params()
828 * - EVP_PKEY_CTX_{gettable,settable}_params()
829 *
830 */
831int evp_pkey_ctx_set_params_strict(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
832{
4fe54d67
NT		 833 if (ctx == NULL || params == NULL)
834 return 0;
835
51373129
RL		 836 /*
837 * We only check for provider side EVP_PKEY_CTX. For #legacy, we
838 * depend on the translation that happens in EVP_PKEY_CTX_set_params()
839 * call, and that the resulting ctrl call will return -2 if it doesn't
840 * known the ctrl command number.
841 */
842 if (evp_pkey_ctx_is_provided(ctx)) {
843 const OSSL_PARAM *settable = EVP_PKEY_CTX_settable_params(ctx);
844 const OSSL_PARAM *p;
845
846 for (p = params; p->key != NULL; p++) {
847 /* Check the ctx actually understands this parameter */
848 if (OSSL_PARAM_locate_const(settable, p->key) == NULL )
849 return -2;
850 }
4fe54d67
NT		 851 }
852
853 return EVP_PKEY_CTX_set_params(ctx, params);
854}
855
856int evp_pkey_ctx_get_params_strict(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
857{
4fe54d67
NT		 858 if (ctx == NULL || params == NULL)
859 return 0;
860
51373129
RL		 861 /*
862 * We only check for provider side EVP_PKEY_CTX. For #legacy, we
863 * depend on the translation that happens in EVP_PKEY_CTX_get_params()
864 * call, and that the resulting ctrl call will return -2 if it doesn't
865 * known the ctrl command number.
866 */
867 if (evp_pkey_ctx_is_provided(ctx)) {
868 const OSSL_PARAM *gettable = EVP_PKEY_CTX_gettable_params(ctx);
869 const OSSL_PARAM *p;
870
871 for (p = params; p->key != NULL; p++ ) {
872 /* Check the ctx actually understands this parameter */
873 if (OSSL_PARAM_locate_const(gettable, p->key) == NULL )
874 return -2;
875 }
4fe54d67
NT		 876 }
877
878 return EVP_PKEY_CTX_get_params(ctx, params);
879}
880
9c45222d
MC		 881int EVP_PKEY_CTX_get_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD **md)
882{
ac2d58c7 883 OSSL_PARAM sig_md_params[2], *p = sig_md_params;
9c45222d
MC		 884 /* 80 should be big enough */
885 char name[80] = "";
886 const EVP_MD *tmp;
887
864b89ce 888 if (ctx == NULL || !EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
9c45222d
MC		 889 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
890 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
891 return -2;
892 }
893
7c14d0c1 894 if (ctx->op.sig.algctx == NULL)
9c45222d
MC		 895 return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG,
896 EVP_PKEY_CTRL_GET_MD, 0, (void *)(md));
897
898 *p++ = OSSL_PARAM_construct_utf8_string(OSSL_SIGNATURE_PARAM_DIGEST,
899 name,
900 sizeof(name));
ac2d58c7 901 *p = OSSL_PARAM_construct_end();
9c45222d
MC		 902
903 if (!EVP_PKEY_CTX_get_params(ctx, sig_md_params))
904 return 0;
905
7606bed9 906 tmp = evp_get_digestbyname_ex(ctx->libctx, name);
9c45222d
MC		 907 if (tmp == NULL)
908 return 0;
909
910 *md = tmp;
911
912 return 1;
913}
914
05d2f72e
MC		 915static int evp_pkey_ctx_set_md(EVP_PKEY_CTX *ctx, const EVP_MD *md,
916 int fallback, const char *param, int op,
917 int ctrl)
4889dadc 918{
05d2f72e 919 OSSL_PARAM md_params[2], *p = md_params;
4889dadc
MC		 920 const char *name;
921
05d2f72e 922 if (ctx == NULL || (ctx->operation & op) == 0) {
9c45222d
MC		 923 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
924 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
925 return -2;
926 }
927
05d2f72e
MC		 928 if (fallback)
929 return EVP_PKEY_CTX_ctrl(ctx, -1, op, ctrl, 0, (void *)(md));
4889dadc 930
9c45222d
MC		 931 if (md == NULL) {
932 name = "";
9c45222d 933 } else {
9c45222d
MC		 934 name = EVP_MD_name(md);
935 }
4889dadc 936
05d2f72e 937 *p++ = OSSL_PARAM_construct_utf8_string(param,
9c45222d
MC		 938 /*
939 * Cast away the const. This is read
940 * only so should be safe
941 */
8b6ffd40 942 (char *)name, 0);
ac2d58c7 943 *p = OSSL_PARAM_construct_end();
4889dadc 944
05d2f72e
MC		 945 return EVP_PKEY_CTX_set_params(ctx, md_params);
946}
947
948int EVP_PKEY_CTX_set_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD *md)
949{
7c14d0c1 950 return evp_pkey_ctx_set_md(ctx, md, ctx->op.sig.algctx == NULL,
05d2f72e
MC		 951 OSSL_SIGNATURE_PARAM_DIGEST,
952 EVP_PKEY_OP_TYPE_SIG, EVP_PKEY_CTRL_MD);
4889dadc
MC		 953}
954
ac2d58c7
MC		 955int EVP_PKEY_CTX_set_tls1_prf_md(EVP_PKEY_CTX *ctx, const EVP_MD *md)
956{
7c14d0c1 957 return evp_pkey_ctx_set_md(ctx, md, ctx->op.kex.algctx == NULL,
05d2f72e
MC		 958 OSSL_KDF_PARAM_DIGEST,
959 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_TLS_MD);
960}
961
962static int evp_pkey_ctx_set1_octet_string(EVP_PKEY_CTX *ctx, int fallback,
963 const char *param, int op, int ctrl,
964 const unsigned char *data,
965 int datalen)
966{
967 OSSL_PARAM octet_string_params[2], *p = octet_string_params;
ac2d58c7 968
5d51925a 969 if (ctx == NULL || (ctx->operation & op) == 0) {
ac2d58c7
MC		 970 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
971 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
972 return -2;
973 }
974
0be6cf0c 975 /* Code below to be removed when legacy support is dropped. */
05d2f72e
MC		 976 if (fallback)
977 return EVP_PKEY_CTX_ctrl(ctx, -1, op, ctrl, datalen, (void *)(data));
0be6cf0c 978 /* end of legacy support */
ac2d58c7 979
05d2f72e
MC		 980 if (datalen < 0) {
981 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_LENGTH);
982 return 0;
ac2d58c7
MC		 983 }
984
05d2f72e 985 *p++ = OSSL_PARAM_construct_octet_string(param,
ac2d58c7
MC		 986 /*
987 * Cast away the const. This is read
988 * only so should be safe
989 */
05d2f72e
MC		 990 (unsigned char *)data,
991 (size_t)datalen);
194de849 992 *p = OSSL_PARAM_construct_end();
ac2d58c7 993
05d2f72e 994 return EVP_PKEY_CTX_set_params(ctx, octet_string_params);
ac2d58c7
MC		 995}
996
997int EVP_PKEY_CTX_set1_tls1_prf_secret(EVP_PKEY_CTX *ctx,
998 const unsigned char *sec, int seclen)
999{
7c14d0c1 1000 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
05d2f72e
MC		 1001 OSSL_KDF_PARAM_SECRET,
1002 EVP_PKEY_OP_DERIVE,
1003 EVP_PKEY_CTRL_TLS_SECRET,
1004 sec, seclen);
1005}
ac2d58c7 1006
05d2f72e
MC		 1007int EVP_PKEY_CTX_add1_tls1_prf_seed(EVP_PKEY_CTX *ctx,
1008 const unsigned char *seed, int seedlen)
1009{
7c14d0c1 1010 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
05d2f72e
MC		 1011 OSSL_KDF_PARAM_SEED,
1012 EVP_PKEY_OP_DERIVE,
1013 EVP_PKEY_CTRL_TLS_SEED,
1014 seed, seedlen);
1015}
ac2d58c7 1016
05d2f72e
MC		 1017int EVP_PKEY_CTX_set_hkdf_md(EVP_PKEY_CTX *ctx, const EVP_MD *md)
1018{
7c14d0c1 1019 return evp_pkey_ctx_set_md(ctx, md, ctx->op.kex.algctx == NULL,
05d2f72e
MC		 1020 OSSL_KDF_PARAM_DIGEST,
1021 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_HKDF_MD);
1022}
ac2d58c7 1023
05d2f72e
MC		 1024int EVP_PKEY_CTX_set1_hkdf_salt(EVP_PKEY_CTX *ctx,
1025 const unsigned char *salt, int saltlen)
1026{
7c14d0c1 1027 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
05d2f72e
MC		 1028 OSSL_KDF_PARAM_SALT,
1029 EVP_PKEY_OP_DERIVE,
1030 EVP_PKEY_CTRL_HKDF_SALT,
1031 salt, saltlen);
1032}
ac2d58c7 1033
05d2f72e
MC		 1034int EVP_PKEY_CTX_set1_hkdf_key(EVP_PKEY_CTX *ctx,
1035 const unsigned char *key, int keylen)
1036{
7c14d0c1 1037 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
05d2f72e
MC		 1038 OSSL_KDF_PARAM_KEY,
1039 EVP_PKEY_OP_DERIVE,
1040 EVP_PKEY_CTRL_HKDF_KEY,
1041 key, keylen);
1042}
ac2d58c7 1043
05d2f72e
MC		 1044int EVP_PKEY_CTX_add1_hkdf_info(EVP_PKEY_CTX *ctx,
1045 const unsigned char *info, int infolen)
1046{
7c14d0c1 1047 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
05d2f72e
MC		 1048 OSSL_KDF_PARAM_INFO,
1049 EVP_PKEY_OP_DERIVE,
1050 EVP_PKEY_CTRL_HKDF_INFO,
1051 info, infolen);
ac2d58c7
MC		 1052}
1053
05d2f72e 1054int EVP_PKEY_CTX_hkdf_mode(EVP_PKEY_CTX *ctx, int mode)
ac2d58c7 1055{
05d2f72e 1056 OSSL_PARAM int_params[2], *p = int_params;
ac2d58c7
MC		 1057
1058 if (ctx == NULL || !EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
1059 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1060 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
1061 return -2;
1062 }
1063
0be6cf0c 1064 /* Code below to be removed when legacy support is dropped. */
7c14d0c1 1065 if (ctx->op.kex.algctx == NULL)
ac2d58c7 1066 return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_DERIVE,
05d2f72e 1067 EVP_PKEY_CTRL_HKDF_MODE, mode, NULL);
0be6cf0c 1068 /* end of legacy support */
ac2d58c7 1069
05d2f72e
MC		 1070 if (mode < 0) {
1071 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_VALUE);
ac2d58c7
MC		 1072 return 0;
1073 }
1074
05d2f72e 1075 *p++ = OSSL_PARAM_construct_int(OSSL_KDF_PARAM_MODE, &mode);
194de849 1076 *p = OSSL_PARAM_construct_end();
ac2d58c7 1077
05d2f72e 1078 return EVP_PKEY_CTX_set_params(ctx, int_params);
ac2d58c7
MC		 1079}
1080
194de849
MC		 1081int EVP_PKEY_CTX_set1_pbe_pass(EVP_PKEY_CTX *ctx, const char *pass,
1082 int passlen)
1083{
7c14d0c1 1084 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
194de849
MC		 1085 OSSL_KDF_PARAM_PASSWORD,
1086 EVP_PKEY_OP_DERIVE,
1087 EVP_PKEY_CTRL_PASS,
1088 (const unsigned char *)pass, passlen);
1089}
1090
1091int EVP_PKEY_CTX_set1_scrypt_salt(EVP_PKEY_CTX *ctx,
1092 const unsigned char *salt, int saltlen)
1093{
7c14d0c1 1094 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
194de849
MC		 1095 OSSL_KDF_PARAM_SALT,
1096 EVP_PKEY_OP_DERIVE,
1097 EVP_PKEY_CTRL_SCRYPT_SALT,
1098 salt, saltlen);
1099}
1100
1101static int evp_pkey_ctx_set_uint64(EVP_PKEY_CTX *ctx, const char *param,
1102 int op, int ctrl, uint64_t val)
1103{
1104 OSSL_PARAM uint64_params[2], *p = uint64_params;
1105
1106 if (ctx == NULL || !EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
1107 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1108 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
1109 return -2;
1110 }
1111
0be6cf0c 1112 /* Code below to be removed when legacy support is dropped. */
7c14d0c1 1113 if (ctx->op.kex.algctx == NULL)
194de849 1114 return EVP_PKEY_CTX_ctrl_uint64(ctx, -1, op, ctrl, val);
0be6cf0c 1115 /* end of legacy support */
194de849
MC		 1116
1117 *p++ = OSSL_PARAM_construct_uint64(param, &val);
1118 *p = OSSL_PARAM_construct_end();
1119
1120 return EVP_PKEY_CTX_set_params(ctx, uint64_params);
1121}
1122
1123int EVP_PKEY_CTX_set_scrypt_N(EVP_PKEY_CTX *ctx, uint64_t n)
1124{
1125 return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_N,
1126 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_SCRYPT_N,
1127 n);
1128}
1129
1130int EVP_PKEY_CTX_set_scrypt_r(EVP_PKEY_CTX *ctx, uint64_t r)
1131{
1132 return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_R,
1133 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_SCRYPT_R,
1134 r);
1135}
1136
1137int EVP_PKEY_CTX_set_scrypt_p(EVP_PKEY_CTX *ctx, uint64_t p)
1138{
1139 return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_P,
1140 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_SCRYPT_P,
1141 p);
1142}
1143
1144int EVP_PKEY_CTX_set_scrypt_maxmem_bytes(EVP_PKEY_CTX *ctx,
1145 uint64_t maxmem_bytes)
1146{
1147 return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_MAXMEM,
1148 EVP_PKEY_OP_DERIVE,
1149 EVP_PKEY_CTRL_SCRYPT_MAXMEM_BYTES,
1150 maxmem_bytes);
1151}
1152
5d51925a
MC		 1153int EVP_PKEY_CTX_set_mac_key(EVP_PKEY_CTX *ctx, const unsigned char *key,
1154 int keylen)
1155{
1156 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.keymgmt.genctx == NULL,
1157 OSSL_PKEY_PARAM_PRIV_KEY,
1158 EVP_PKEY_OP_KEYGEN,
1159 EVP_PKEY_CTRL_SET_MAC_KEY,
1160 key, keylen);
1161}
1162
80f4fd18
SL		 1163int EVP_PKEY_CTX_set_kem_op(EVP_PKEY_CTX *ctx, const char *op)
1164{
1165 OSSL_PARAM params[2], *p = params;
1166
1167 if (ctx == NULL || op == NULL) {
1168 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_VALUE);
1169 return 0;
1170 }
1171 if (!EVP_PKEY_CTX_IS_KEM_OP(ctx)) {
1172 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1173 return -2;
1174 }
1175 *p++ = OSSL_PARAM_construct_utf8_string(OSSL_KEM_PARAM_OPERATION,
1176 (char *)op, 0);
1177 *p = OSSL_PARAM_construct_end();
1178 return EVP_PKEY_CTX_set_params(ctx, params);
1179}
1180
8d6481f5
RL		 1181int evp_pkey_ctx_set1_id_prov(EVP_PKEY_CTX *ctx, const void *id, int len)
1182{
1183 OSSL_PARAM params[2], *p = params;
1184 int ret;
1185
1186 if (!EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
1187 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1188 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
1189 return -2;
1190 }
1191
1192 *p++ = OSSL_PARAM_construct_octet_string(OSSL_PKEY_PARAM_DIST_ID,
1193 /*
1194 * Cast away the const. This is
1195 * read only so should be safe
1196 */
1197 (void *)id, (size_t)len);
1198 *p++ = OSSL_PARAM_construct_end();
1199
1200 ret = evp_pkey_ctx_set_params_strict(ctx, params);
1201 if (ret == -2)
1202 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1203 return ret;
1204}
1205
1206int EVP_PKEY_CTX_set1_id(EVP_PKEY_CTX *ctx, const void *id, int len)
1207{
1208 return EVP_PKEY_CTX_ctrl(ctx, -1, -1,
1209 EVP_PKEY_CTRL_SET1_ID, (int)len, (void*)(id));
1210}
1211
1212static int get1_id_data(EVP_PKEY_CTX *ctx, void *id, size_t *id_len)
1213{
1214 int ret;
1215 void *tmp_id = NULL;
1216 OSSL_PARAM params[2], *p = params;
1217
1218 if (!EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
1219 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1220 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
1221 return -2;
1222 }
1223
1224 *p++ = OSSL_PARAM_construct_octet_ptr(OSSL_PKEY_PARAM_DIST_ID,
1225 &tmp_id, 0);
1226 *p++ = OSSL_PARAM_construct_end();
1227
1228 ret = evp_pkey_ctx_get_params_strict(ctx, params);
1229 if (ret == -2) {
1230 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1231 } else if (ret > 0) {
1232 size_t tmp_id_len = params[0].return_size;
1233
1234 if (id != NULL)
1235 memcpy(id, tmp_id, tmp_id_len);
1236 if (id_len != NULL)
1237 *id_len = tmp_id_len;
1238 }
1239 return ret;
1240}
1241
1242int evp_pkey_ctx_get1_id_prov(EVP_PKEY_CTX *ctx, void *id)
1243{
1244 return get1_id_data(ctx, id, NULL);
1245}
1246
1247int evp_pkey_ctx_get1_id_len_prov(EVP_PKEY_CTX *ctx, size_t *id_len)
1248{
1249 return get1_id_data(ctx, NULL, id_len);
1250}
1251
1252int EVP_PKEY_CTX_get1_id(EVP_PKEY_CTX *ctx, void *id)
1253{
1254 return EVP_PKEY_CTX_ctrl(ctx, -1, -1, EVP_PKEY_CTRL_GET1_ID, 0, (void*)id);
1255}
1256
1257int EVP_PKEY_CTX_get1_id_len(EVP_PKEY_CTX *ctx, size_t *id_len)
1258{
1259 return EVP_PKEY_CTX_ctrl(ctx, -1, -1,
1260 EVP_PKEY_CTRL_GET1_ID_LEN, 0, (void*)id_len);
1261}
1262
86df26b3
RL		 1263static int evp_pkey_ctx_ctrl_int(EVP_PKEY_CTX *ctx, int keytype, int optype,
1264 int cmd, int p1, void *p2)
0f113f3e 1265{
86df26b3 1266 int ret = 0;
4803717f 1267
86df26b3
RL		 1268 /*
1269 * If the method has a |digest_custom| function, we can relax the
1270 * operation type check, since this can be called before the operation
1271 * is initialized.
1272 */
1273 if (ctx->pmeth == NULL || ctx->pmeth->digest_custom == NULL) {
1274 if (ctx->operation == EVP_PKEY_OP_UNDEFINED) {
9311d0c4 1275 ERR_raise(ERR_LIB_EVP, EVP_R_NO_OPERATION_SET);
86df26b3
RL		 1276 return -1;
1277 }
35aca9ec 1278
86df26b3 1279 if ((optype != -1) && !(ctx->operation & optype)) {
9311d0c4 1280 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION);
86df26b3
RL		 1281 return -1;
1282 }
0f113f3e 1283 }
0f113f3e 1284
86df26b3
RL		 1285 switch (evp_pkey_ctx_state(ctx)) {
1286 case EVP_PKEY_STATE_PROVIDER:
5524580b 1287 return evp_pkey_ctx_ctrl_to_param(ctx, keytype, optype, cmd, p1, p2);
86df26b3
RL		 1288 case EVP_PKEY_STATE_UNKNOWN:
1289 case EVP_PKEY_STATE_LEGACY:
1290 if (ctx->pmeth == NULL || ctx->pmeth->ctrl == NULL) {
9311d0c4 1291 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
86df26b3
RL		 1292 return -2;
1293 }
1294 if ((keytype != -1) && (ctx->pmeth->pkey_id != keytype))
1295 return -1;
4803717f 1296
86df26b3 1297 ret = ctx->pmeth->ctrl(ctx, cmd, p1, p2);
0f113f3e 1298
86df26b3 1299 if (ret == -2)
9311d0c4 1300 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
86df26b3 1301 break;
0f113f3e 1302 }
86df26b3
RL		 1303 return ret;
1304}
0f113f3e 1305
86df26b3
RL		 1306int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype,
1307 int cmd, int p1, void *p2)
1308{
1309 int ret = 0;
1310
d65ab22e 1311 if (ctx == NULL) {
9311d0c4 1312 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
d65ab22e
SL		 1313 return -2;
1314 }
86df26b3
RL		 1315 /* If unsupported, we don't want that reported here */
1316 ERR_set_mark();
1317 ret = evp_pkey_ctx_store_cached_data(ctx, keytype, optype,
1318 cmd, NULL, p2, p1);
1319 if (ret == -2) {
1320 ERR_pop_to_mark();
1321 } else {
1322 ERR_clear_last_mark();
1323 /*
1324 * If there was an error, there was an error.
1325 * If the operation isn't initialized yet, we also return, as
1326 * the saved values will be used then anyway.
1327 */
1328 if (ret < 1 || ctx->operation == EVP_PKEY_OP_UNDEFINED)
1329 return ret;
1330 }
86df26b3 1331 return evp_pkey_ctx_ctrl_int(ctx, keytype, optype, cmd, p1, p2);
0f113f3e 1332}
0b6f3c66 1333
cefa762e 1334int EVP_PKEY_CTX_ctrl_uint64(EVP_PKEY_CTX *ctx, int keytype, int optype,
64bf1016 1335 int cmd, uint64_t value)
cefa762e
JB		 1336{
1337 return EVP_PKEY_CTX_ctrl(ctx, keytype, optype, cmd, 0, &value);
1338}
1339
19dbb742 1340
86df26b3
RL		 1341static int evp_pkey_ctx_ctrl_str_int(EVP_PKEY_CTX *ctx,
1342 const char *name, const char *value)
0f113f3e 1343{
86df26b3
RL		 1344 int ret = 0;
1345
35aca9ec 1346 if (ctx == NULL) {
9311d0c4 1347 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
35aca9ec
MC		 1348 return -2;
1349 }
1350
86df26b3
RL		 1351 switch (evp_pkey_ctx_state(ctx)) {
1352 case EVP_PKEY_STATE_PROVIDER:
5524580b 1353 return evp_pkey_ctx_ctrl_str_to_param(ctx, name, value);
86df26b3
RL		 1354 case EVP_PKEY_STATE_UNKNOWN:
1355 case EVP_PKEY_STATE_LEGACY:
1356 if (ctx == NULL || ctx->pmeth == NULL || ctx->pmeth->ctrl_str == NULL) {
9311d0c4 1357 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
86df26b3
RL		 1358 return -2;
1359 }
1360 if (strcmp(name, "digest") == 0)
b9689452
RL		 1361 ret = EVP_PKEY_CTX_md(ctx,
1362 EVP_PKEY_OP_TYPE_SIG | EVP_PKEY_OP_TYPE_CRYPT,
86df26b3
RL		 1363 EVP_PKEY_CTRL_MD, value);
1364 else
1365 ret = ctx->pmeth->ctrl_str(ctx, name, value);
1366 break;
1367 }
35aca9ec 1368
86df26b3
RL		 1369 return ret;
1370}
1371
1372int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX *ctx,
1373 const char *name, const char *value)
1374{
1375 int ret = 0;
1376
1377 /* If unsupported, we don't want that reported here */
1378 ERR_set_mark();
1379 ret = evp_pkey_ctx_store_cached_data(ctx, -1, -1, -1,
1380 name, value, strlen(value) + 1);
1381 if (ret == -2) {
1382 ERR_pop_to_mark();
1383 } else {
1384 ERR_clear_last_mark();
1385 /*
1386 * If there was an error, there was an error.
1387 * If the operation isn't initialized yet, we also return, as
1388 * the saved values will be used then anyway.
1389 */
1390 if (ret < 1 || ctx->operation == EVP_PKEY_OP_UNDEFINED)
1391 return ret;
1392 }
1393
1394 return evp_pkey_ctx_ctrl_str_int(ctx, name, value);
1395}
1396
1397static int decode_cmd(int cmd, const char *name)
1398{
1399 if (cmd == -1) {
1400 /*
1401 * The consequence of the assertion not being true is that this
1402 * function will return -1, which will cause the calling functions
1403 * to signal that the command is unsupported... in non-debug mode.
1404 */
1405 if (ossl_assert(name != NULL))
1406 if (strcmp(name, "distid") == 0 || strcmp(name, "hexdistid") == 0)
1407 cmd = EVP_PKEY_CTRL_SET1_ID;
1408 }
1409
1410 return cmd;
1411}
1412
1413static int evp_pkey_ctx_store_cached_data(EVP_PKEY_CTX *ctx,
1414 int keytype, int optype,
1415 int cmd, const char *name,
1416 const void *data, size_t data_len)
1417{
bbf4dc96
RL		 1418 /*
1419 * Check that it's one of the supported commands. The ctrl commands
1420 * number cases here must correspond to the cases in the bottom switch
1421 * in this function.
1422 */
1423 switch (cmd = decode_cmd(cmd, name)) {
1424 case EVP_PKEY_CTRL_SET1_ID:
1425 break;
1426 default:
1427 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1428 return -2;
1429 }
1430
977e95b9
RL		 1431 if (keytype != -1) {
1432 switch (evp_pkey_ctx_state(ctx)) {
1433 case EVP_PKEY_STATE_PROVIDER:
1434 if (ctx->keymgmt == NULL) {
1435 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1436 return -2;
1437 }
1438 if (!EVP_KEYMGMT_is_a(ctx->keymgmt,
1439 evp_pkey_type2name(keytype))) {
1440 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION);
1441 return -1;
1442 }
1443 break;
1444 case EVP_PKEY_STATE_UNKNOWN:
1445 case EVP_PKEY_STATE_LEGACY:
1446 if (ctx->pmeth == NULL) {
1447 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1448 return -2;
1449 }
bbf4dc96 1450 if (EVP_PKEY_type(ctx->pmeth->pkey_id) != EVP_PKEY_type(keytype)) {
977e95b9
RL		 1451 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION);
1452 return -1;
1453 }
1454 break;
1455 }
1456 }
1457 if (optype != -1 && (ctx->operation & optype) == 0) {
86df26b3
RL		 1458 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION);
1459 return -1;
0f113f3e 1460 }
86df26b3 1461
86df26b3
RL		 1462 switch (cmd) {
1463 case EVP_PKEY_CTRL_SET1_ID:
1464 evp_pkey_ctx_free_cached_data(ctx, cmd, name);
1465 if (name != NULL) {
1466 ctx->cached_parameters.dist_id_name = OPENSSL_strdup(name);
1467 if (ctx->cached_parameters.dist_id_name == NULL) {
1468 ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
1469 return 0;
1470 }
1471 }
1472 if (data_len > 0) {
1473 ctx->cached_parameters.dist_id = OPENSSL_memdup(data, data_len);
1474 if (ctx->cached_parameters.dist_id == NULL) {
1475 ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
1476 return 0;
1477 }
1478 }
1479 ctx->cached_parameters.dist_id_set = 1;
1480 ctx->cached_parameters.dist_id_len = data_len;
bbf4dc96 1481 break;
86df26b3 1482 }
bbf4dc96 1483 return 1;
86df26b3
RL		 1484}
1485
1486static void evp_pkey_ctx_free_cached_data(EVP_PKEY_CTX *ctx,
1487 int cmd, const char *name)
1488{
1489 cmd = decode_cmd(cmd, name);
1490 switch (cmd) {
1491 case EVP_PKEY_CTRL_SET1_ID:
1492 OPENSSL_free(ctx->cached_parameters.dist_id);
1493 OPENSSL_free(ctx->cached_parameters.dist_id_name);
1494 ctx->cached_parameters.dist_id = NULL;
1495 ctx->cached_parameters.dist_id_name = NULL;
1496 break;
1497 }
1498}
1499
1500static void evp_pkey_ctx_free_all_cached_data(EVP_PKEY_CTX *ctx)
1501{
1502 evp_pkey_ctx_free_cached_data(ctx, EVP_PKEY_CTRL_SET1_ID, NULL);
1503}
1504
1505int evp_pkey_ctx_use_cached_data(EVP_PKEY_CTX *ctx)
1506{
1507 int ret = 1;
1508
1509 if (ret && ctx->cached_parameters.dist_id_set) {
1510 const char *name = ctx->cached_parameters.dist_id_name;
1511 const void *val = ctx->cached_parameters.dist_id;
1512 size_t len = ctx->cached_parameters.dist_id_len;
1513
1514 if (name != NULL)
1515 ret = evp_pkey_ctx_ctrl_str_int(ctx, name, val);
1516 else
1517 ret = evp_pkey_ctx_ctrl_int(ctx, -1, ctx->operation,
1518 EVP_PKEY_CTRL_SET1_ID,
1519 (int)len, (void *)val);
1520 }
1521
1522 return ret;
0f113f3e 1523}
f5cda4cb 1524
b4250010 1525OSSL_LIB_CTX *EVP_PKEY_CTX_get0_libctx(EVP_PKEY_CTX *ctx)
0b3a4ef2
MC		 1526{
1527 return ctx->libctx;
1528}
1529
29000e43 1530const char *EVP_PKEY_CTX_get0_propq(EVP_PKEY_CTX *ctx)
0b3a4ef2
MC		 1531{
1532 return ctx->propquery;
1533}
1534
99119000
DSH		 1535/* Utility functions to send a string of hex string to a ctrl */
1536
1537int EVP_PKEY_CTX_str2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *str)
1538{
1539 size_t len;
1540
1541 len = strlen(str);
1542 if (len > INT_MAX)
1543 return -1;
1544 return ctx->pmeth->ctrl(ctx, cmd, len, (void *)str);
1545}
1546
1547int EVP_PKEY_CTX_hex2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *hex)
1548{
1549 unsigned char *bin;
1550 long binlen;
1551 int rv = -1;
1552
14f051a0 1553 bin = OPENSSL_hexstr2buf(hex, &binlen);
99119000
DSH		 1554 if (bin == NULL)
1555 return 0;
1556 if (binlen <= INT_MAX)
1557 rv = ctx->pmeth->ctrl(ctx, cmd, binlen, bin);
1558 OPENSSL_free(bin);
1559 return rv;
1560}
52ad523c 1561
410877ba
DSH		 1562/* Pass a message digest to a ctrl */
1563int EVP_PKEY_CTX_md(EVP_PKEY_CTX *ctx, int optype, int cmd, const char *md)
1564{
1565 const EVP_MD *m;
c82bafc5 1566
410877ba 1567 if (md == NULL || (m = EVP_get_digestbyname(md)) == NULL) {
9311d0c4 1568 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_DIGEST);
410877ba
DSH		 1569 return 0;
1570 }
1571 return EVP_PKEY_CTX_ctrl(ctx, -1, optype, cmd, 0, (void *)m);
1572}
99119000 1573
b28dea4e 1574int EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 1575{
1576 return ctx->operation;
1577}
b28dea4e
DSH		 1578
1579void EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX *ctx, int *dat, int datlen)
0f113f3e
MC		 1580{
1581 ctx->keygen_info = dat;
1582 ctx->keygen_info_count = datlen;
1583}
b28dea4e 1584
f5cda4cb 1585void EVP_PKEY_CTX_set_data(EVP_PKEY_CTX *ctx, void *data)
0f113f3e
MC		 1586{
1587 ctx->data = data;
1588}
f5cda4cb 1589
9fdcc21f 1590void *EVP_PKEY_CTX_get_data(const EVP_PKEY_CTX *ctx)
0f113f3e
MC		 1591{
1592 return ctx->data;
1593}
f5cda4cb 1594
81cebb8b 1595EVP_PKEY *EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 1596{
1597 return ctx->pkey;
1598}
81cebb8b 1599
0e1dba93 1600EVP_PKEY *EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 1601{
1602 return ctx->peerkey;
1603}
1604
f5cda4cb 1605void EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX *ctx, void *data)
0f113f3e
MC		 1606{
1607 ctx->app_data = data;
1608}
f5cda4cb
DSH		 1609
1610void *EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 1611{
1612 return ctx->app_data;
1613}
ba30bad5
DSH		 1614
1615void EVP_PKEY_meth_set_init(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1616 int (*init) (EVP_PKEY_CTX *ctx))
1617{
1618 pmeth->init = init;
1619}
8bdcef40
DSH		 1620
1621void EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD *pmeth,
0f113f3e 1622 int (*copy) (EVP_PKEY_CTX *dst,
9fdcc21f 1623 const EVP_PKEY_CTX *src))
0f113f3e
MC		 1624{
1625 pmeth->copy = copy;
1626}
ba30bad5
DSH		 1627
1628void EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1629 void (*cleanup) (EVP_PKEY_CTX *ctx))
1630{
1631 pmeth->cleanup = cleanup;
1632}
ba30bad5
DSH		 1633
1634void EVP_PKEY_meth_set_paramgen(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1635 int (*paramgen_init) (EVP_PKEY_CTX *ctx),
1636 int (*paramgen) (EVP_PKEY_CTX *ctx,
1637 EVP_PKEY *pkey))
1638{
1639 pmeth->paramgen_init = paramgen_init;
1640 pmeth->paramgen = paramgen;
1641}
ba30bad5
DSH		 1642
1643void EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1644 int (*keygen_init) (EVP_PKEY_CTX *ctx),
1645 int (*keygen) (EVP_PKEY_CTX *ctx,
1646 EVP_PKEY *pkey))
1647{
1648 pmeth->keygen_init = keygen_init;
1649 pmeth->keygen = keygen;
1650}
ba30bad5
DSH		 1651
1652void EVP_PKEY_meth_set_sign(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1653 int (*sign_init) (EVP_PKEY_CTX *ctx),
1654 int (*sign) (EVP_PKEY_CTX *ctx,
1655 unsigned char *sig, size_t *siglen,
1656 const unsigned char *tbs,
1657 size_t tbslen))
1658{
1659 pmeth->sign_init = sign_init;
1660 pmeth->sign = sign;
1661}
ba30bad5
DSH		 1662
1663void EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1664 int (*verify_init) (EVP_PKEY_CTX *ctx),
1665 int (*verify) (EVP_PKEY_CTX *ctx,
1666 const unsigned char *sig,
1667 size_t siglen,
1668 const unsigned char *tbs,
1669 size_t tbslen))
1670{
1671 pmeth->verify_init = verify_init;
1672 pmeth->verify = verify;
1673}
ba30bad5
DSH		 1674
1675void EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1676 int (*verify_recover_init) (EVP_PKEY_CTX
1677 *ctx),
1678 int (*verify_recover) (EVP_PKEY_CTX
1679 *ctx,
1680 unsigned char
1681 *sig,
1682 size_t *siglen,
1683 const unsigned
1684 char *tbs,
1685 size_t tbslen))
1686{
1687 pmeth->verify_recover_init = verify_recover_init;
1688 pmeth->verify_recover = verify_recover;
1689}
ba30bad5
DSH		 1690
1691void EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1692 int (*signctx_init) (EVP_PKEY_CTX *ctx,
1693 EVP_MD_CTX *mctx),
1694 int (*signctx) (EVP_PKEY_CTX *ctx,
1695 unsigned char *sig,
1696 size_t *siglen,
1697 EVP_MD_CTX *mctx))
1698{
1699 pmeth->signctx_init = signctx_init;
1700 pmeth->signctx = signctx;
1701}
ba30bad5
DSH		 1702
1703void EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1704 int (*verifyctx_init) (EVP_PKEY_CTX *ctx,
1705 EVP_MD_CTX *mctx),
1706 int (*verifyctx) (EVP_PKEY_CTX *ctx,
1707 const unsigned char *sig,
1708 int siglen,
1709 EVP_MD_CTX *mctx))
1710{
1711 pmeth->verifyctx_init = verifyctx_init;
1712 pmeth->verifyctx = verifyctx;
1713}
ba30bad5
DSH		 1714
1715void EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1716 int (*encrypt_init) (EVP_PKEY_CTX *ctx),
1717 int (*encryptfn) (EVP_PKEY_CTX *ctx,
1718 unsigned char *out,
1719 size_t *outlen,
1720 const unsigned char *in,
1721 size_t inlen))
1722{
1723 pmeth->encrypt_init = encrypt_init;
1724 pmeth->encrypt = encryptfn;
1725}
ba30bad5
DSH		 1726
1727void EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1728 int (*decrypt_init) (EVP_PKEY_CTX *ctx),
1729 int (*decrypt) (EVP_PKEY_CTX *ctx,
1730 unsigned char *out,
1731 size_t *outlen,
1732 const unsigned char *in,
1733 size_t inlen))
1734{
1735 pmeth->decrypt_init = decrypt_init;
1736 pmeth->decrypt = decrypt;
1737}
ba30bad5
DSH		 1738
1739void EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1740 int (*derive_init) (EVP_PKEY_CTX *ctx),
1741 int (*derive) (EVP_PKEY_CTX *ctx,
1742 unsigned char *key,
1743 size_t *keylen))
1744{
1745 pmeth->derive_init = derive_init;
1746 pmeth->derive = derive;
1747}
ba30bad5
DSH		 1748
1749void EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1750 int (*ctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
1751 void *p2),
1752 int (*ctrl_str) (EVP_PKEY_CTX *ctx,
1753 const char *type,
1754 const char *value))
1755{
1756 pmeth->ctrl = ctrl;
1757 pmeth->ctrl_str = ctrl_str;
1758}
e7451ed1 1759
2555285f
AH		 1760void EVP_PKEY_meth_set_digestsign(EVP_PKEY_METHOD *pmeth,
1761 int (*digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen,
1762 const unsigned char *tbs, size_t tbslen))
1763{
1764 pmeth->digestsign = digestsign;
1765}
1766
1767void EVP_PKEY_meth_set_digestverify(EVP_PKEY_METHOD *pmeth,
1768 int (*digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig,
1769 size_t siglen, const unsigned char *tbs,
1770 size_t tbslen))
1771{
1772 pmeth->digestverify = digestverify;
1773}
1774
2aee35d3
PY		 1775void EVP_PKEY_meth_set_check(EVP_PKEY_METHOD *pmeth,
1776 int (*check) (EVP_PKEY *pkey))
1777{
1778 pmeth->check = check;
1779}
1780
b0004708
PY		 1781void EVP_PKEY_meth_set_public_check(EVP_PKEY_METHOD *pmeth,
1782 int (*check) (EVP_PKEY *pkey))
1783{
1784 pmeth->public_check = check;
1785}
1786
1787void EVP_PKEY_meth_set_param_check(EVP_PKEY_METHOD *pmeth,
1788 int (*check) (EVP_PKEY *pkey))
1789{
1790 pmeth->param_check = check;
1791}
1792
0a8fdef7
PY		 1793void EVP_PKEY_meth_set_digest_custom(EVP_PKEY_METHOD *pmeth,
1794 int (*digest_custom) (EVP_PKEY_CTX *ctx,
1795 EVP_MD_CTX *mctx))
1796{
1797 pmeth->digest_custom = digest_custom;
1798}
1799
693be9a2 1800void EVP_PKEY_meth_get_init(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1801 int (**pinit) (EVP_PKEY_CTX *ctx))
1802{
1803 *pinit = pmeth->init;
1804}
1805
693be9a2 1806void EVP_PKEY_meth_get_copy(const EVP_PKEY_METHOD *pmeth,
e7451ed1 1807 int (**pcopy) (EVP_PKEY_CTX *dst,
9fdcc21f 1808 const EVP_PKEY_CTX *src))
e7451ed1
DSH		 1809{
1810 *pcopy = pmeth->copy;
1811}
1812
693be9a2 1813void EVP_PKEY_meth_get_cleanup(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1814 void (**pcleanup) (EVP_PKEY_CTX *ctx))
1815{
1816 *pcleanup = pmeth->cleanup;
1817}
1818
693be9a2 1819void EVP_PKEY_meth_get_paramgen(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1820 int (**pparamgen_init) (EVP_PKEY_CTX *ctx),
1821 int (**pparamgen) (EVP_PKEY_CTX *ctx,
1822 EVP_PKEY *pkey))
1823{
1824 if (pparamgen_init)
1825 *pparamgen_init = pmeth->paramgen_init;
1826 if (pparamgen)
1827 *pparamgen = pmeth->paramgen;
1828}
1829
693be9a2 1830void EVP_PKEY_meth_get_keygen(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1831 int (**pkeygen_init) (EVP_PKEY_CTX *ctx),
1832 int (**pkeygen) (EVP_PKEY_CTX *ctx,
1833 EVP_PKEY *pkey))
1834{
1835 if (pkeygen_init)
1836 *pkeygen_init = pmeth->keygen_init;
1837 if (pkeygen)
1838 *pkeygen = pmeth->keygen;
1839}
1840
693be9a2 1841void EVP_PKEY_meth_get_sign(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1842 int (**psign_init) (EVP_PKEY_CTX *ctx),
1843 int (**psign) (EVP_PKEY_CTX *ctx,
1844 unsigned char *sig, size_t *siglen,
1845 const unsigned char *tbs,
1846 size_t tbslen))
1847{
1848 if (psign_init)
1849 *psign_init = pmeth->sign_init;
1850 if (psign)
1851 *psign = pmeth->sign;
1852}
1853
693be9a2 1854void EVP_PKEY_meth_get_verify(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1855 int (**pverify_init) (EVP_PKEY_CTX *ctx),
1856 int (**pverify) (EVP_PKEY_CTX *ctx,
1857 const unsigned char *sig,
1858 size_t siglen,
1859 const unsigned char *tbs,
1860 size_t tbslen))
1861{
1862 if (pverify_init)
1863 *pverify_init = pmeth->verify_init;
1864 if (pverify)
1865 *pverify = pmeth->verify;
1866}
1867
693be9a2 1868void EVP_PKEY_meth_get_verify_recover(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1869 int (**pverify_recover_init) (EVP_PKEY_CTX
1870 *ctx),
1871 int (**pverify_recover) (EVP_PKEY_CTX
1872 *ctx,
1873 unsigned char
1874 *sig,
1875 size_t *siglen,
1876 const unsigned
1877 char *tbs,
1878 size_t tbslen))
1879{
1880 if (pverify_recover_init)
1881 *pverify_recover_init = pmeth->verify_recover_init;
1882 if (pverify_recover)
1883 *pverify_recover = pmeth->verify_recover;
1884}
1885
693be9a2 1886void EVP_PKEY_meth_get_signctx(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1887 int (**psignctx_init) (EVP_PKEY_CTX *ctx,
1888 EVP_MD_CTX *mctx),
1889 int (**psignctx) (EVP_PKEY_CTX *ctx,
1890 unsigned char *sig,
1891 size_t *siglen,
1892 EVP_MD_CTX *mctx))
1893{
1894 if (psignctx_init)
1895 *psignctx_init = pmeth->signctx_init;
1896 if (psignctx)
1897 *psignctx = pmeth->signctx;
1898}
1899
693be9a2 1900void EVP_PKEY_meth_get_verifyctx(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1901 int (**pverifyctx_init) (EVP_PKEY_CTX *ctx,
1902 EVP_MD_CTX *mctx),
1903 int (**pverifyctx) (EVP_PKEY_CTX *ctx,
1904 const unsigned char *sig,
1905 int siglen,
1906 EVP_MD_CTX *mctx))
1907{
1908 if (pverifyctx_init)
1909 *pverifyctx_init = pmeth->verifyctx_init;
1910 if (pverifyctx)
1911 *pverifyctx = pmeth->verifyctx;
1912}
1913
693be9a2 1914void EVP_PKEY_meth_get_encrypt(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1915 int (**pencrypt_init) (EVP_PKEY_CTX *ctx),
1916 int (**pencryptfn) (EVP_PKEY_CTX *ctx,
1917 unsigned char *out,
1918 size_t *outlen,
1919 const unsigned char *in,
1920 size_t inlen))
1921{
1922 if (pencrypt_init)
1923 *pencrypt_init = pmeth->encrypt_init;
1924 if (pencryptfn)
1925 *pencryptfn = pmeth->encrypt;
1926}
1927
693be9a2 1928void EVP_PKEY_meth_get_decrypt(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1929 int (**pdecrypt_init) (EVP_PKEY_CTX *ctx),
1930 int (**pdecrypt) (EVP_PKEY_CTX *ctx,
1931 unsigned char *out,
1932 size_t *outlen,
1933 const unsigned char *in,
1934 size_t inlen))
1935{
1936 if (pdecrypt_init)
1937 *pdecrypt_init = pmeth->decrypt_init;
1938 if (pdecrypt)
1939 *pdecrypt = pmeth->decrypt;
1940}
1941
693be9a2 1942void EVP_PKEY_meth_get_derive(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1943 int (**pderive_init) (EVP_PKEY_CTX *ctx),
1944 int (**pderive) (EVP_PKEY_CTX *ctx,
1945 unsigned char *key,
1946 size_t *keylen))
1947{
1948 if (pderive_init)
1949 *pderive_init = pmeth->derive_init;
1950 if (pderive)
1951 *pderive = pmeth->derive;
1952}
1953
693be9a2 1954void EVP_PKEY_meth_get_ctrl(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1955 int (**pctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
1956 void *p2),
1957 int (**pctrl_str) (EVP_PKEY_CTX *ctx,
1958 const char *type,
1959 const char *value))
1960{
1961 if (pctrl)
1962 *pctrl = pmeth->ctrl;
1963 if (pctrl_str)
1964 *pctrl_str = pmeth->ctrl_str;
1965}
2aee35d3 1966
2555285f
AH		 1967void EVP_PKEY_meth_get_digestsign(EVP_PKEY_METHOD *pmeth,
1968 int (**digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen,
1969 const unsigned char *tbs, size_t tbslen))
1970{
1971 if (digestsign)
1972 *digestsign = pmeth->digestsign;
1973}
1974
1975void EVP_PKEY_meth_get_digestverify(EVP_PKEY_METHOD *pmeth,
1976 int (**digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig,
1977 size_t siglen, const unsigned char *tbs,
1978 size_t tbslen))
1979{
1980 if (digestverify)
1981 *digestverify = pmeth->digestverify;
1982}
1983
693be9a2 1984void EVP_PKEY_meth_get_check(const EVP_PKEY_METHOD *pmeth,
2aee35d3
PY		 1985 int (**pcheck) (EVP_PKEY *pkey))
1986{
34f5c8b1 1987 if (pcheck != NULL)
2aee35d3
PY		 1988 *pcheck = pmeth->check;
1989}
b0004708 1990
693be9a2 1991void EVP_PKEY_meth_get_public_check(const EVP_PKEY_METHOD *pmeth,
b0004708
PY		 1992 int (**pcheck) (EVP_PKEY *pkey))
1993{
34f5c8b1 1994 if (pcheck != NULL)
b0004708
PY		 1995 *pcheck = pmeth->public_check;
1996}
1997
693be9a2 1998void EVP_PKEY_meth_get_param_check(const EVP_PKEY_METHOD *pmeth,
b0004708
PY		 1999 int (**pcheck) (EVP_PKEY *pkey))
2000{
34f5c8b1 2001 if (pcheck != NULL)
b0004708
PY		 2002 *pcheck = pmeth->param_check;
2003}
0a8fdef7
PY		 2004
2005void EVP_PKEY_meth_get_digest_custom(EVP_PKEY_METHOD *pmeth,
2006 int (**pdigest_custom) (EVP_PKEY_CTX *ctx,
2007 EVP_MD_CTX *mctx))
2008{
675f4cee 2009 if (pdigest_custom != NULL)
0a8fdef7
PY		 2010 *pdigest_custom = pmeth->digest_custom;
2011}
e683582b 2012
f844f9eb 2013#endif /* FIPS_MODULE */
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