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fips module header inclusion fine-tunning
[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>
3f773c91
TM		 18#ifndef FIPS_MODULE
19# include <openssl/engine.h>
20#endif
33bed28b 21#include <openssl/evp.h>
35aca9ec
MC		 22#include <openssl/core_names.h>
23#include <openssl/dh.h>
89abd1b6 24#include <openssl/rsa.h>
ac2d58c7 25#include <openssl/kdf.h>
35aca9ec 26#include "internal/cryptlib.h"
3f773c91
TM		 27#ifndef FIPS_MODULE
28# include "crypto/asn1.h"
29#endif
25f2138b 30#include "crypto/evp.h"
7165593c 31#include "crypto/dh.h"
7229a2f4 32#include "crypto/ec.h"
7165593c 33#include "internal/ffc.h"
99119000 34#include "internal/numbers.h"
390acbeb 35#include "internal/provider.h"
706457b7 36#include "evp_local.h"
0b6f3c66 37
f844f9eb 38#ifndef FIPS_MODULE
e683582b 39
86df26b3
RL		 40static int evp_pkey_ctx_store_cached_data(EVP_PKEY_CTX *ctx,
41 int keytype, int optype,
42 int cmd, const char *name,
43 const void *data, size_t data_len);
44static void evp_pkey_ctx_free_cached_data(EVP_PKEY_CTX *ctx,
45 int cmd, const char *name);
46static void evp_pkey_ctx_free_all_cached_data(EVP_PKEY_CTX *ctx);
47
19bd1fa1 48typedef const EVP_PKEY_METHOD *(*pmeth_fn)(void);
0f113f3e 49typedef int sk_cmp_fn_type(const char *const *a, const char *const *b);
5ce278a7 50
df2ee0e2 51static STACK_OF(EVP_PKEY_METHOD) *app_pkey_methods = NULL;
0b6f3c66 52
cefa762e 53/* This array needs to be in order of NIDs */
19bd1fa1 54static pmeth_fn standard_methods[] = {
23b2fc0b 55 ossl_rsa_pkey_method,
e683582b 56# ifndef OPENSSL_NO_DH
19dbb742 57 ossl_dh_pkey_method,
e683582b
SL		 58# endif
59# ifndef OPENSSL_NO_DSA
5af02212 60 ossl_dsa_pkey_method,
e683582b
SL		 61# endif
62# ifndef OPENSSL_NO_EC
32ab57cb 63 ossl_ec_pkey_method,
e683582b 64# endif
23b2fc0b 65 ossl_rsa_pss_pkey_method,
e683582b 66# ifndef OPENSSL_NO_DH
19dbb742 67 ossl_dhx_pkey_method,
e683582b 68# endif
e683582b 69# ifndef OPENSSL_NO_EC
32ab57cb
SL		 70 ossl_ecx25519_pkey_method,
71 ossl_ecx448_pkey_method,
e683582b 72# endif
e683582b 73# ifndef OPENSSL_NO_EC
32ab57cb
SL		 74 ossl_ed25519_pkey_method,
75 ossl_ed448_pkey_method,
e683582b 76# endif
0f113f3e 77};
0b6f3c66 78
19bd1fa1
PS		 79DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, pmeth_fn, pmeth_func);
80
81static int pmeth_func_cmp(const EVP_PKEY_METHOD *const *a, pmeth_fn const *b)
82{
83 return ((*a)->pkey_id - ((**b)())->pkey_id);
84}
85
86IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, pmeth_fn, pmeth_func);
babb3798 87
0f113f3e
MC		 88static int pmeth_cmp(const EVP_PKEY_METHOD *const *a,
89 const EVP_PKEY_METHOD *const *b)
90{
91 return ((*a)->pkey_id - (*b)->pkey_id);
92}
0b6f3c66 93
60488d24 94static const EVP_PKEY_METHOD *evp_pkey_meth_find_added_by_application(int type)
0f113f3e 95{
60488d24 96 if (app_pkey_methods != NULL) {
0f113f3e 97 int idx;
60488d24
RL		 98 EVP_PKEY_METHOD tmp;
99
100 tmp.pkey_id = type;
0f113f3e
MC		 101 idx = sk_EVP_PKEY_METHOD_find(app_pkey_methods, &tmp);
102 if (idx >= 0)
103 return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx);
104 }
60488d24
RL		 105 return NULL;
106}
107
108const EVP_PKEY_METHOD *EVP_PKEY_meth_find(int type)
109{
110 pmeth_fn *ret;
111 EVP_PKEY_METHOD tmp;
112 const EVP_PKEY_METHOD *t;
113
114 if ((t = evp_pkey_meth_find_added_by_application(type)) != NULL)
115 return t;
116
117 tmp.pkey_id = type;
118 t = &tmp;
19bd1fa1 119 ret = OBJ_bsearch_pmeth_func(&t, standard_methods,
60488d24 120 OSSL_NELEM(standard_methods));
12a765a5 121 if (ret == NULL || *ret == NULL)
0f113f3e 122 return NULL;
19bd1fa1 123 return (**ret)();
0f113f3e 124}
0b6f3c66 125
e683582b
SL		 126EVP_PKEY_METHOD *EVP_PKEY_meth_new(int id, int flags)
127{
128 EVP_PKEY_METHOD *pmeth;
129
130 pmeth = OPENSSL_zalloc(sizeof(*pmeth));
131 if (pmeth == NULL) {
9311d0c4 132 ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
e683582b
SL		 133 return NULL;
134 }
135
136 pmeth->pkey_id = id;
137 pmeth->flags = flags | EVP_PKEY_FLAG_DYNAMIC;
138 return pmeth;
139}
50914496 140
e19246dc
RL		 141static void help_get_legacy_alg_type_from_keymgmt(const char *keytype,
142 void *arg)
143{
144 int *type = arg;
145
146 if (*type == NID_undef)
147 *type = evp_pkey_name2type(keytype);
148}
86df26b3 149
e19246dc
RL		 150static int get_legacy_alg_type_from_keymgmt(const EVP_KEYMGMT *keymgmt)
151{
152 int type = NID_undef;
153
154 EVP_KEYMGMT_names_do_all(keymgmt, help_get_legacy_alg_type_from_keymgmt,
155 &type);
156 return type;
157}
158#endif /* FIPS_MODULE */
159
160int evp_pkey_ctx_state(const EVP_PKEY_CTX *ctx)
86df26b3
RL		 161{
162 if (ctx->operation == EVP_PKEY_OP_UNDEFINED)
163 return EVP_PKEY_STATE_UNKNOWN;
164
165 if ((EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
7c14d0c1 166 && ctx->op.kex.algctx != NULL)
86df26b3 167 || (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
7c14d0c1 168 && ctx->op.sig.algctx != NULL)
86df26b3 169 || (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
7c14d0c1 170 && ctx->op.ciph.algctx != NULL)
86df26b3 171 || (EVP_PKEY_CTX_IS_GEN_OP(ctx)
80f4fd18
SL		 172 && ctx->op.keymgmt.genctx != NULL)
173 || (EVP_PKEY_CTX_IS_KEM_OP(ctx)
7c14d0c1 174 && ctx->op.encap.algctx != NULL))
86df26b3
RL		 175 return EVP_PKEY_STATE_PROVIDER;
176
177 return EVP_PKEY_STATE_LEGACY;
178}
179
b4250010 180static EVP_PKEY_CTX *int_ctx_new(OSSL_LIB_CTX *libctx,
3ee348b0 181 EVP_PKEY *pkey, ENGINE *e,
4b9e90f4 182 const char *keytype, const char *propquery,
a07c17ef 183 int id)
e683582b 184
0f113f3e 185{
50914496 186 EVP_PKEY_CTX *ret = NULL;
d0ea49a8 187 const EVP_PKEY_METHOD *pmeth = NULL;
4b9e90f4 188 EVP_KEYMGMT *keymgmt = NULL;
d0ea49a8
RL		 189
190 /*
50914496 191 * If the given |pkey| is provided, we extract the keytype from its
5e5bc836 192 * keymgmt and skip over the legacy code.
982efd77 193 */
5e5bc836 194 if (pkey != NULL && evp_pkey_is_provided(pkey)) {
982efd77
RL		 195 /* If we have an engine, something went wrong somewhere... */
196 if (!ossl_assert(e == NULL))
197 return NULL;
ed576acd 198 keytype = EVP_KEYMGMT_get0_name(pkey->keymgmt);
982efd77
RL		 199 goto common;
200 }
50914496 201
f844f9eb 202#ifndef FIPS_MODULE
0be6cf0c 203 /* Code below to be removed when legacy support is dropped. */
d0ea49a8 204 /* BEGIN legacy */
0f113f3e 205 if (id == -1) {
50914496
RL		 206 if (pkey != NULL)
207 id = pkey->type;
208 else if (keytype != NULL)
209 id = evp_pkey_name2type(keytype);
210 if (id == NID_undef)
211 id = -1;
0f113f3e 212 }
50914496
RL		 213 /* If no ID was found here, we can only resort to find a keymgmt */
214 if (id == -1)
215 goto common;
60653e5b
RL		 216
217 /*
218 * Here, we extract what information we can for the purpose of
219 * supporting usage with implementations from providers, to make
220 * for a smooth transition from legacy stuff to provider based stuff.
221 *
222 * If an engine is given, this is entirely legacy, and we should not
223 * pretend anything else, so we only set the name when no engine is
224 * given. If both are already given, someone made a mistake, and
225 * since that can only happen internally, it's safe to make an
226 * assertion.
227 */
4b9e90f4 228 if (!ossl_assert(e == NULL || keytype == NULL))
60653e5b 229 return NULL;
b247113c 230 if (e == NULL && (pkey == NULL || pkey->foreign == 0))
4b9e90f4 231 keytype = OBJ_nid2sn(id);
60653e5b 232
e683582b 233# ifndef OPENSSL_NO_ENGINE
c2976edf 234 if (e == NULL && pkey != NULL)
d19b01ad 235 e = pkey->pmeth_engine != NULL ? pkey->pmeth_engine : pkey->engine;
0f113f3e
MC		 236 /* Try to find an ENGINE which implements this method */
237 if (e) {
238 if (!ENGINE_init(e)) {
9311d0c4 239 ERR_raise(ERR_LIB_EVP, ERR_R_ENGINE_LIB);
0f113f3e
MC		 240 return NULL;
241 }
c2976edf 242 } else {
0f113f3e 243 e = ENGINE_get_pkey_meth_engine(id);
c2976edf 244 }
0f113f3e
MC		 245
246 /*
0d4fb843 247 * If an ENGINE handled this method look it up. Otherwise use internal
0f113f3e
MC		 248 * tables.
249 */
50914496 250 if (e != NULL)
0f113f3e 251 pmeth = ENGINE_get_pkey_meth(e, id);
b247113c
TM		 252 else if (pkey != NULL && pkey->foreign)
253 pmeth = EVP_PKEY_meth_find(id);
50914496 254 else
e683582b 255# endif
60488d24 256 pmeth = evp_pkey_meth_find_added_by_application(id);
c9777d26 257
d0ea49a8 258 /* END legacy */
f844f9eb 259#endif /* FIPS_MODULE */
d0ea49a8 260 common:
4b9e90f4
RL		 261 /*
262 * If there's no engine and there's a name, we try fetching a provider
263 * implementation.
264 */
5fcb97c6 265 if (e == NULL && keytype != NULL) {
4b9e90f4 266 keymgmt = EVP_KEYMGMT_fetch(libctx, keytype, propquery);
d0b79f86 267 if (keymgmt == NULL)
50914496
RL		 268 return NULL; /* EVP_KEYMGMT_fetch() recorded an error */
269
270#ifndef FIPS_MODULE
271 /*
272 * Chase down the legacy NID, as that might be needed for diverse
273 * purposes, such as ensure that EVP_PKEY_type() can return sensible
b574c6a9 274 * values. We go through all keymgmt names, because the keytype
50914496
RL		 275 * that's passed to this function doesn't necessarily translate
276 * directly.
50914496
RL		 277 */
278 if (keymgmt != NULL) {
279 int tmp_id = get_legacy_alg_type_from_keymgmt(keymgmt);
280
281 if (tmp_id != NID_undef) {
282 if (id == -1) {
283 id = tmp_id;
284 } else {
285 /*
286 * It really really shouldn't differ. If it still does,
287 * something is very wrong.
288 */
289 if (!ossl_assert(id == tmp_id)) {
9311d0c4 290 ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR);
50914496
RL		 291 EVP_KEYMGMT_free(keymgmt);
292 return NULL;
293 }
294 }
295 }
b533510f 296 }
50914496
RL		 297#endif
298 }
299
300 if (pmeth == NULL && keymgmt == NULL) {
9311d0c4 301 ERR_raise(ERR_LIB_EVP, EVP_R_UNSUPPORTED_ALGORITHM);
50914496
RL		 302 } else {
303 ret = OPENSSL_zalloc(sizeof(*ret));
304 if (ret == NULL)
9311d0c4 305 ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
5fcb97c6 306 }
4b9e90f4 307
f844f9eb 308#if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODULE)
50914496 309 if ((ret == NULL || pmeth == NULL) && e != NULL)
7c96dbcd 310 ENGINE_finish(e);
a63bf2c5 311#endif
50914496
RL		 312
313 if (ret == NULL) {
314 EVP_KEYMGMT_free(keymgmt);
0f113f3e
MC		 315 return NULL;
316 }
ddfd7182
SL		 317 if (propquery != NULL) {
318 ret->propquery = OPENSSL_strdup(propquery);
319 if (ret->propquery == NULL) {
7153f544 320 OPENSSL_free(ret);
ddfd7182
SL		 321 EVP_KEYMGMT_free(keymgmt);
322 return NULL;
323 }
324 }
3ee348b0 325 ret->libctx = libctx;
4b9e90f4
RL		 326 ret->keytype = keytype;
327 ret->keymgmt = keymgmt;
4c3c2633 328 ret->legacy_keytype = id;
0f113f3e
MC		 329 ret->engine = e;
330 ret->pmeth = pmeth;
331 ret->operation = EVP_PKEY_OP_UNDEFINED;
332 ret->pkey = pkey;
a6465b3f 333 if (pkey != NULL)
03273d61 334 EVP_PKEY_up_ref(pkey);
0f113f3e 335
8b84b075 336 if (pmeth != NULL && pmeth->init != NULL) {
0f113f3e 337 if (pmeth->init(ret) <= 0) {
83b4049a 338 ret->pmeth = NULL;
0f113f3e
MC		 339 EVP_PKEY_CTX_free(ret);
340 return NULL;
341 }
342 }
343
344 return ret;
345}
346
f844f9eb 347/*- All methods below can also be used in FIPS_MODULE */
e683582b 348
b4250010 349EVP_PKEY_CTX *EVP_PKEY_CTX_new_from_name(OSSL_LIB_CTX *libctx,
e683582b
SL		 350 const char *name,
351 const char *propquery)
352{
353 return int_ctx_new(libctx, NULL, NULL, name, propquery, -1);
354}
355
b4250010 356EVP_PKEY_CTX *EVP_PKEY_CTX_new_from_pkey(OSSL_LIB_CTX *libctx, EVP_PKEY *pkey,
2ee4a50a 357 const char *propquery)
e683582b 358{
2ee4a50a 359 return int_ctx_new(libctx, pkey, NULL, NULL, propquery, -1);
e683582b
SL		 360}
361
864b89ce
MC		 362void evp_pkey_ctx_free_old_ops(EVP_PKEY_CTX *ctx)
363{
e683582b 364 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
7c14d0c1
SL		 365 if (ctx->op.sig.algctx != NULL && ctx->op.sig.signature != NULL)
366 ctx->op.sig.signature->freectx(ctx->op.sig.algctx);
864b89ce 367 EVP_SIGNATURE_free(ctx->op.sig.signature);
7c14d0c1 368 ctx->op.sig.algctx = NULL;
fb1ecf85 369 ctx->op.sig.signature = NULL;
62f49b90 370 } else if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
7c14d0c1
SL		 371 if (ctx->op.kex.algctx != NULL && ctx->op.kex.exchange != NULL)
372 ctx->op.kex.exchange->freectx(ctx->op.kex.algctx);
e683582b 373 EVP_KEYEXCH_free(ctx->op.kex.exchange);
7c14d0c1 374 ctx->op.kex.algctx = NULL;
e683582b 375 ctx->op.kex.exchange = NULL;
80f4fd18 376 } else if (EVP_PKEY_CTX_IS_KEM_OP(ctx)) {
7c14d0c1
SL		 377 if (ctx->op.encap.algctx != NULL && ctx->op.encap.kem != NULL)
378 ctx->op.encap.kem->freectx(ctx->op.encap.algctx);
80f4fd18 379 EVP_KEM_free(ctx->op.encap.kem);
7c14d0c1 380 ctx->op.encap.algctx = NULL;
80f4fd18
SL		 381 ctx->op.encap.kem = NULL;
382 }
383 else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)) {
7c14d0c1
SL		 384 if (ctx->op.ciph.algctx != NULL && ctx->op.ciph.cipher != NULL)
385 ctx->op.ciph.cipher->freectx(ctx->op.ciph.algctx);
2c938e2e 386 EVP_ASYM_CIPHER_free(ctx->op.ciph.cipher);
7c14d0c1 387 ctx->op.ciph.algctx = NULL;
2c938e2e 388 ctx->op.ciph.cipher = NULL;
62924755
RL		 389 } else if (EVP_PKEY_CTX_IS_GEN_OP(ctx)) {
390 if (ctx->op.keymgmt.genctx != NULL && ctx->keymgmt != NULL)
391 evp_keymgmt_gen_cleanup(ctx->keymgmt, ctx->op.keymgmt.genctx);
864b89ce
MC		 392 }
393}
394
e683582b 395void EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx)
0f113f3e 396{
e683582b
SL		 397 if (ctx == NULL)
398 return;
399 if (ctx->pmeth && ctx->pmeth->cleanup)
400 ctx->pmeth->cleanup(ctx);
b4faea50 401
e683582b 402 evp_pkey_ctx_free_old_ops(ctx);
86df26b3
RL		 403#ifndef FIPS_MODULE
404 evp_pkey_ctx_free_all_cached_data(ctx);
405#endif
e683582b 406 EVP_KEYMGMT_free(ctx->keymgmt);
0f113f3e 407
ddfd7182 408 OPENSSL_free(ctx->propquery);
e683582b
SL		 409 EVP_PKEY_free(ctx->pkey);
410 EVP_PKEY_free(ctx->peerkey);
f844f9eb 411#if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODULE)
e683582b
SL		 412 ENGINE_finish(ctx->engine);
413#endif
3786d748 414 BN_free(ctx->rsa_pubexp);
e683582b 415 OPENSSL_free(ctx);
0f113f3e 416}
ba30bad5 417
f844f9eb 418#ifndef FIPS_MODULE
e683582b 419
f830c68f 420void EVP_PKEY_meth_get0_info(int *ppkey_id, int *pflags,
0f113f3e
MC		 421 const EVP_PKEY_METHOD *meth)
422{
423 if (ppkey_id)
424 *ppkey_id = meth->pkey_id;
425 if (pflags)
426 *pflags = meth->flags;
427}
f830c68f
DSH		 428
429void EVP_PKEY_meth_copy(EVP_PKEY_METHOD *dst, const EVP_PKEY_METHOD *src)
0f113f3e 430{
4cbb196b
AT		 431 int pkey_id = dst->pkey_id;
432 int flags = dst->flags;
f830c68f 433
4cbb196b 434 *dst = *src;
f830c68f 435
4cbb196b
AT		 436 /* We only copy the function pointers so restore the other values */
437 dst->pkey_id = pkey_id;
438 dst->flags = flags;
0f113f3e 439}
f830c68f 440
ba30bad5 441void EVP_PKEY_meth_free(EVP_PKEY_METHOD *pmeth)
0f113f3e
MC		 442{
443 if (pmeth && (pmeth->flags & EVP_PKEY_FLAG_DYNAMIC))
444 OPENSSL_free(pmeth);
445}
ba30bad5 446
f5cda4cb 447EVP_PKEY_CTX *EVP_PKEY_CTX_new(EVP_PKEY *pkey, ENGINE *e)
0f113f3e 448{
3ee348b0 449 return int_ctx_new(NULL, pkey, e, NULL, NULL, -1);
0f113f3e 450}
f5cda4cb
DSH		 451
452EVP_PKEY_CTX *EVP_PKEY_CTX_new_id(int id, ENGINE *e)
0f113f3e 453{
3ee348b0 454 return int_ctx_new(NULL, NULL, e, NULL, NULL, id);
a07c17ef
RL		 455}
456
9fdcc21f 457EVP_PKEY_CTX *EVP_PKEY_CTX_dup(const EVP_PKEY_CTX *pctx)
0f113f3e
MC		 458{
459 EVP_PKEY_CTX *rctx;
ff64702b 460
e683582b 461# ifndef OPENSSL_NO_ENGINE
0f113f3e
MC		 462 /* Make sure it's safe to copy a pkey context using an ENGINE */
463 if (pctx->engine && !ENGINE_init(pctx->engine)) {
9311d0c4 464 ERR_raise(ERR_LIB_EVP, ERR_R_ENGINE_LIB);
0f113f3e
MC		 465 return 0;
466 }
e683582b 467# endif
ff64702b 468 rctx = OPENSSL_zalloc(sizeof(*rctx));
3484236d 469 if (rctx == NULL) {
9311d0c4 470 ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
0f113f3e 471 return NULL;
3484236d 472 }
8bdcef40 473
ff64702b
MC		 474 if (pctx->pkey != NULL)
475 EVP_PKEY_up_ref(pctx->pkey);
476 rctx->pkey = pctx->pkey;
477 rctx->operation = pctx->operation;
3ee348b0 478 rctx->libctx = pctx->libctx;
f23bc0b7 479 rctx->keytype = pctx->keytype;
ddfd7182
SL		 480 rctx->propquery = NULL;
481 if (pctx->propquery != NULL) {
482 rctx->propquery = OPENSSL_strdup(pctx->propquery);
74cd923a
RL		 483 if (rctx->propquery == NULL)
484 goto err;
ddfd7182 485 }
ac7750bb 486 rctx->legacy_keytype = pctx->legacy_keytype;
ff64702b 487
864b89ce
MC		 488 if (EVP_PKEY_CTX_IS_DERIVE_OP(pctx)) {
489 if (pctx->op.kex.exchange != NULL) {
490 rctx->op.kex.exchange = pctx->op.kex.exchange;
ac7750bb 491 if (!EVP_KEYEXCH_up_ref(rctx->op.kex.exchange))
74cd923a 492 goto err;
ff64702b 493 }
7c14d0c1 494 if (pctx->op.kex.algctx != NULL) {
864b89ce 495 if (!ossl_assert(pctx->op.kex.exchange != NULL))
74cd923a 496 goto err;
7c14d0c1
SL		 497 rctx->op.kex.algctx
498 = pctx->op.kex.exchange->dupctx(pctx->op.kex.algctx);
499 if (rctx->op.kex.algctx == NULL) {
864b89ce 500 EVP_KEYEXCH_free(rctx->op.kex.exchange);
74cd923a 501 goto err;
864b89ce
MC		 502 }
503 return rctx;
504 }
505 } else if (EVP_PKEY_CTX_IS_SIGNATURE_OP(pctx)) {
506 if (pctx->op.sig.signature != NULL) {
507 rctx->op.sig.signature = pctx->op.sig.signature;
ac7750bb 508 if (!EVP_SIGNATURE_up_ref(rctx->op.sig.signature))
74cd923a 509 goto err;
864b89ce 510 }
7c14d0c1 511 if (pctx->op.sig.algctx != NULL) {
864b89ce 512 if (!ossl_assert(pctx->op.sig.signature != NULL))
74cd923a 513 goto err;
7c14d0c1
SL		 514 rctx->op.sig.algctx
515 = pctx->op.sig.signature->dupctx(pctx->op.sig.algctx);
516 if (rctx->op.sig.algctx == NULL) {
864b89ce 517 EVP_SIGNATURE_free(rctx->op.sig.signature);
74cd923a 518 goto err;
864b89ce
MC		 519 }
520 return rctx;
ff64702b 521 }
2c938e2e
MC		 522 } else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(pctx)) {
523 if (pctx->op.ciph.cipher != NULL) {
524 rctx->op.ciph.cipher = pctx->op.ciph.cipher;
ac7750bb 525 if (!EVP_ASYM_CIPHER_up_ref(rctx->op.ciph.cipher))
74cd923a 526 goto err;
2c938e2e 527 }
7c14d0c1 528 if (pctx->op.ciph.algctx != NULL) {
2c938e2e 529 if (!ossl_assert(pctx->op.ciph.cipher != NULL))
74cd923a 530 goto err;
7c14d0c1
SL		 531 rctx->op.ciph.algctx
532 = pctx->op.ciph.cipher->dupctx(pctx->op.ciph.algctx);
533 if (rctx->op.ciph.algctx == NULL) {
2c938e2e 534 EVP_ASYM_CIPHER_free(rctx->op.ciph.cipher);
74cd923a 535 goto err;
2c938e2e
MC		 536 }
537 return rctx;
538 }
80f4fd18
SL		 539 } else if (EVP_PKEY_CTX_IS_KEM_OP(pctx)) {
540 if (pctx->op.encap.kem != NULL) {
541 rctx->op.encap.kem = pctx->op.encap.kem;
ac7750bb 542 if (!EVP_KEM_up_ref(rctx->op.encap.kem))
74cd923a 543 goto err;
80f4fd18 544 }
7c14d0c1 545 if (pctx->op.encap.algctx != NULL) {
80f4fd18 546 if (!ossl_assert(pctx->op.encap.kem != NULL))
74cd923a 547 goto err;
7c14d0c1
SL		 548 rctx->op.encap.algctx
549 = pctx->op.encap.kem->dupctx(pctx->op.encap.algctx);
550 if (rctx->op.encap.algctx == NULL) {
80f4fd18 551 EVP_KEM_free(rctx->op.encap.kem);
74cd923a 552 goto err;
80f4fd18
SL		 553 }
554 return rctx;
555 }
ac7750bb
SL		 556 } else if (EVP_PKEY_CTX_IS_GEN_OP(pctx)) {
557 /* Not supported - This would need a gen_dupctx() to work */
74cd923a 558 goto err;
ff64702b
MC		 559 }
560
0f113f3e 561 rctx->pmeth = pctx->pmeth;
e683582b 562# ifndef OPENSSL_NO_ENGINE
0f113f3e 563 rctx->engine = pctx->engine;
e683582b 564# endif
8bdcef40 565
ac7750bb 566 if (pctx->peerkey != NULL)
03273d61 567 EVP_PKEY_up_ref(pctx->peerkey);
0f113f3e 568 rctx->peerkey = pctx->peerkey;
8bdcef40 569
ac7750bb
SL		 570 if (pctx->pmeth == NULL) {
571 if (rctx->operation == EVP_PKEY_OP_UNDEFINED) {
572 EVP_KEYMGMT *tmp_keymgmt = pctx->keymgmt;
573 void *provkey;
574
575 provkey = evp_pkey_export_to_provider(pctx->pkey, pctx->libctx,
576 &tmp_keymgmt, pctx->propquery);
577 if (provkey == NULL)
578 goto err;
579 if (!EVP_KEYMGMT_up_ref(tmp_keymgmt))
580 goto err;
581 EVP_KEYMGMT_free(rctx->keymgmt);
582 rctx->keymgmt = tmp_keymgmt;
583 return rctx;
584 }
74cd923a 585 } else if (pctx->pmeth->copy(rctx, pctx) > 0) {
0f113f3e 586 return rctx;
74cd923a 587 }
ac7750bb 588err:
83b4049a 589 rctx->pmeth = NULL;
0f113f3e
MC		 590 EVP_PKEY_CTX_free(rctx);
591 return NULL;
0f113f3e 592}
8bdcef40 593
ba30bad5 594int EVP_PKEY_meth_add0(const EVP_PKEY_METHOD *pmeth)
0f113f3e
MC		 595{
596 if (app_pkey_methods == NULL) {
597 app_pkey_methods = sk_EVP_PKEY_METHOD_new(pmeth_cmp);
3484236d 598 if (app_pkey_methods == NULL){
9311d0c4 599 ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
0f113f3e 600 return 0;
3484236d 601 }
0f113f3e 602 }
3484236d 603 if (!sk_EVP_PKEY_METHOD_push(app_pkey_methods, pmeth)) {
9311d0c4 604 ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
0f113f3e 605 return 0;
3484236d 606 }
0f113f3e
MC		 607 sk_EVP_PKEY_METHOD_sort(app_pkey_methods);
608 return 1;
609}
ba30bad5 610
0822e89a
PY		 611void evp_app_cleanup_int(void)
612{
613 if (app_pkey_methods != NULL)
614 sk_EVP_PKEY_METHOD_pop_free(app_pkey_methods, EVP_PKEY_meth_free);
615}
616
617int EVP_PKEY_meth_remove(const EVP_PKEY_METHOD *pmeth)
618{
619 const EVP_PKEY_METHOD *ret;
620
621 ret = sk_EVP_PKEY_METHOD_delete_ptr(app_pkey_methods, pmeth);
622
623 return ret == NULL ? 0 : 1;
624}
625
48ed9c23
DSH		 626size_t EVP_PKEY_meth_get_count(void)
627{
628 size_t rv = OSSL_NELEM(standard_methods);
629
630 if (app_pkey_methods)
631 rv += sk_EVP_PKEY_METHOD_num(app_pkey_methods);
632 return rv;
633}
634
635const EVP_PKEY_METHOD *EVP_PKEY_meth_get0(size_t idx)
636{
637 if (idx < OSSL_NELEM(standard_methods))
19bd1fa1 638 return (standard_methods[idx])();
48ed9c23
DSH		 639 if (app_pkey_methods == NULL)
640 return NULL;
641 idx -= OSSL_NELEM(standard_methods);
642 if (idx >= (size_t)sk_EVP_PKEY_METHOD_num(app_pkey_methods))
643 return NULL;
644 return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx);
645}
e683582b 646#endif
48ed9c23 647
6179dfc7
RL		 648int EVP_PKEY_CTX_is_a(EVP_PKEY_CTX *ctx, const char *keytype)
649{
650#ifndef FIPS_MODULE
651 if (evp_pkey_ctx_is_legacy(ctx))
652 return (ctx->pmeth->pkey_id == evp_pkey_name2type(keytype));
653#endif
654 return EVP_KEYMGMT_is_a(ctx->keymgmt, keytype);
655}
656
56784203 657int EVP_PKEY_CTX_set_params(EVP_PKEY_CTX *ctx, const OSSL_PARAM *params)
0f113f3e 658{
6fcd92d3
RL		 659 switch (evp_pkey_ctx_state(ctx)) {
660 case EVP_PKEY_STATE_PROVIDER:
661 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
e683582b
SL		 662 && ctx->op.kex.exchange != NULL
663 && ctx->op.kex.exchange->set_ctx_params != NULL)
6fcd92d3 664 return
7c14d0c1 665 ctx->op.kex.exchange->set_ctx_params(ctx->op.kex.algctx,
6fcd92d3
RL		 666 params);
667 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
e683582b
SL		 668 && ctx->op.sig.signature != NULL
669 && ctx->op.sig.signature->set_ctx_params != NULL)
6fcd92d3 670 return
7c14d0c1 671 ctx->op.sig.signature->set_ctx_params(ctx->op.sig.algctx,
6fcd92d3
RL		 672 params);
673 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
e683582b
SL		 674 && ctx->op.ciph.cipher != NULL
675 && ctx->op.ciph.cipher->set_ctx_params != NULL)
6fcd92d3 676 return
7c14d0c1 677 ctx->op.ciph.cipher->set_ctx_params(ctx->op.ciph.algctx,
6fcd92d3
RL		 678 params);
679 if (EVP_PKEY_CTX_IS_GEN_OP(ctx)
680 && ctx->keymgmt != NULL
681 && ctx->keymgmt->gen_set_params != NULL)
682 return
683 evp_keymgmt_gen_set_params(ctx->keymgmt, ctx->op.keymgmt.genctx,
684 params);
685 if (EVP_PKEY_CTX_IS_KEM_OP(ctx)
686 && ctx->op.encap.kem != NULL
687 && ctx->op.encap.kem->set_ctx_params != NULL)
688 return
7c14d0c1 689 ctx->op.encap.kem->set_ctx_params(ctx->op.encap.algctx,
6fcd92d3
RL		 690 params);
691 break;
692#ifndef FIPS_MODULE
693 case EVP_PKEY_STATE_UNKNOWN:
694 case EVP_PKEY_STATE_LEGACY:
695 return evp_pkey_ctx_set_params_to_ctrl(ctx, params);
696#endif
697 }
e683582b 698 return 0;
0f113f3e 699}
5da98aa6 700
9c45222d
MC		 701int EVP_PKEY_CTX_get_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
702{
6fcd92d3
RL		 703 switch (evp_pkey_ctx_state(ctx)) {
704 case EVP_PKEY_STATE_PROVIDER:
705 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
4fe54d67
NT		 706 && ctx->op.kex.exchange != NULL
707 && ctx->op.kex.exchange->get_ctx_params != NULL)
6fcd92d3 708 return
7c14d0c1 709 ctx->op.kex.exchange->get_ctx_params(ctx->op.kex.algctx,
6fcd92d3
RL		 710 params);
711 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
864b89ce
MC		 712 && ctx->op.sig.signature != NULL
713 && ctx->op.sig.signature->get_ctx_params != NULL)
6fcd92d3 714 return
7c14d0c1 715 ctx->op.sig.signature->get_ctx_params(ctx->op.sig.algctx,
6fcd92d3
RL		 716 params);
717 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
2c938e2e
MC		 718 && ctx->op.ciph.cipher != NULL
719 && ctx->op.ciph.cipher->get_ctx_params != NULL)
6fcd92d3 720 return
7c14d0c1 721 ctx->op.ciph.cipher->get_ctx_params(ctx->op.ciph.algctx,
6fcd92d3
RL		 722 params);
723 if (EVP_PKEY_CTX_IS_KEM_OP(ctx)
724 && ctx->op.encap.kem != NULL
725 && ctx->op.encap.kem->get_ctx_params != NULL)
726 return
7c14d0c1 727 ctx->op.encap.kem->get_ctx_params(ctx->op.encap.algctx,
6fcd92d3
RL		 728 params);
729 break;
730#ifndef FIPS_MODULE
731 case EVP_PKEY_STATE_UNKNOWN:
732 case EVP_PKEY_STATE_LEGACY:
733 return evp_pkey_ctx_get_params_to_ctrl(ctx, params);
734#endif
735 }
9c45222d
MC		 736 return 0;
737}
738
11a1b341 739#ifndef FIPS_MODULE
56784203 740const OSSL_PARAM *EVP_PKEY_CTX_gettable_params(const EVP_PKEY_CTX *ctx)
9c45222d 741{
18ec26ba
P		 742 void *provctx;
743
4fe54d67
NT		 744 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
745 && ctx->op.kex.exchange != NULL
18ec26ba 746 && ctx->op.kex.exchange->gettable_ctx_params != NULL) {
ed576acd 747 provctx = ossl_provider_ctx(EVP_KEYEXCH_get0_provider(ctx->op.kex.exchange));
7c14d0c1 748 return ctx->op.kex.exchange->gettable_ctx_params(ctx->op.kex.algctx,
fb67126e 749 provctx);
18ec26ba 750 }
864b89ce
MC		 751 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
752 && ctx->op.sig.signature != NULL
18ec26ba
P		 753 && ctx->op.sig.signature->gettable_ctx_params != NULL) {
754 provctx = ossl_provider_ctx(
ed576acd 755 EVP_SIGNATURE_get0_provider(ctx->op.sig.signature));
7c14d0c1 756 return ctx->op.sig.signature->gettable_ctx_params(ctx->op.sig.algctx,
fb67126e 757 provctx);
18ec26ba 758 }
2c938e2e
MC		 759 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
760 && ctx->op.ciph.cipher != NULL
18ec26ba
P		 761 && ctx->op.ciph.cipher->gettable_ctx_params != NULL) {
762 provctx = ossl_provider_ctx(
ed576acd 763 EVP_ASYM_CIPHER_get0_provider(ctx->op.ciph.cipher));
7c14d0c1 764 return ctx->op.ciph.cipher->gettable_ctx_params(ctx->op.ciph.algctx,
fb67126e 765 provctx);
18ec26ba 766 }
80f4fd18
SL		 767 if (EVP_PKEY_CTX_IS_KEM_OP(ctx)
768 && ctx->op.encap.kem != NULL
769 && ctx->op.encap.kem->gettable_ctx_params != NULL) {
ed576acd 770 provctx = ossl_provider_ctx(EVP_KEM_get0_provider(ctx->op.encap.kem));
7c14d0c1 771 return ctx->op.encap.kem->gettable_ctx_params(ctx->op.encap.algctx,
fb67126e 772 provctx);
80f4fd18 773 }
9c45222d
MC		 774 return NULL;
775}
776
56784203 777const OSSL_PARAM *EVP_PKEY_CTX_settable_params(const EVP_PKEY_CTX *ctx)
9c45222d 778{
18ec26ba
P		 779 void *provctx;
780
864b89ce
MC		 781 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
782 && ctx->op.kex.exchange != NULL
18ec26ba 783 && ctx->op.kex.exchange->settable_ctx_params != NULL) {
ed576acd 784 provctx = ossl_provider_ctx(EVP_KEYEXCH_get0_provider(ctx->op.kex.exchange));
7c14d0c1 785 return ctx->op.kex.exchange->settable_ctx_params(ctx->op.kex.algctx,
fb67126e 786 provctx);
18ec26ba 787 }
864b89ce
MC		 788 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
789 && ctx->op.sig.signature != NULL
18ec26ba
P		 790 && ctx->op.sig.signature->settable_ctx_params != NULL) {
791 provctx = ossl_provider_ctx(
ed576acd 792 EVP_SIGNATURE_get0_provider(ctx->op.sig.signature));
7c14d0c1 793 return ctx->op.sig.signature->settable_ctx_params(ctx->op.sig.algctx,
fb67126e 794 provctx);
18ec26ba 795 }
2c938e2e
MC		 796 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
797 && ctx->op.ciph.cipher != NULL
18ec26ba
P		 798 && ctx->op.ciph.cipher->settable_ctx_params != NULL) {
799 provctx = ossl_provider_ctx(
ed576acd 800 EVP_ASYM_CIPHER_get0_provider(ctx->op.ciph.cipher));
7c14d0c1 801 return ctx->op.ciph.cipher->settable_ctx_params(ctx->op.ciph.algctx,
fb67126e 802 provctx);
18ec26ba 803 }
62924755 804 if (EVP_PKEY_CTX_IS_GEN_OP(ctx)
fb67126e
TM		 805 && ctx->keymgmt != NULL
806 && ctx->keymgmt->gen_settable_params != NULL) {
ed576acd 807 provctx = ossl_provider_ctx(EVP_KEYMGMT_get0_provider(ctx->keymgmt));
fb67126e
TM		 808 return ctx->keymgmt->gen_settable_params(ctx->op.keymgmt.genctx,
809 provctx);
810 }
80f4fd18
SL		 811 if (EVP_PKEY_CTX_IS_KEM_OP(ctx)
812 && ctx->op.encap.kem != NULL
813 && ctx->op.encap.kem->settable_ctx_params != NULL) {
ed576acd 814 provctx = ossl_provider_ctx(EVP_KEM_get0_provider(ctx->op.encap.kem));
7c14d0c1 815 return ctx->op.encap.kem->settable_ctx_params(ctx->op.encap.algctx,
fb67126e 816 provctx);
80f4fd18 817 }
9c45222d
MC		 818 return NULL;
819}
820
4fe54d67
NT		 821/*
822 * Internal helpers for stricter EVP_PKEY_CTX_{set,get}_params().
823 *
824 * Return 1 on success, 0 or negative for errors.
825 *
826 * In particular they return -2 if any of the params is not supported.
827 *
f844f9eb 828 * They are not available in FIPS_MODULE as they depend on
4fe54d67
NT		 829 * - EVP_PKEY_CTX_{get,set}_params()
830 * - EVP_PKEY_CTX_{gettable,settable}_params()
831 *
832 */
833int evp_pkey_ctx_set_params_strict(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
834{
4fe54d67
NT		 835 if (ctx == NULL || params == NULL)
836 return 0;
837
51373129
RL		 838 /*
839 * We only check for provider side EVP_PKEY_CTX. For #legacy, we
840 * depend on the translation that happens in EVP_PKEY_CTX_set_params()
841 * call, and that the resulting ctrl call will return -2 if it doesn't
842 * known the ctrl command number.
843 */
844 if (evp_pkey_ctx_is_provided(ctx)) {
845 const OSSL_PARAM *settable = EVP_PKEY_CTX_settable_params(ctx);
846 const OSSL_PARAM *p;
847
848 for (p = params; p->key != NULL; p++) {
849 /* Check the ctx actually understands this parameter */
850 if (OSSL_PARAM_locate_const(settable, p->key) == NULL )
851 return -2;
852 }
4fe54d67
NT		 853 }
854
855 return EVP_PKEY_CTX_set_params(ctx, params);
856}
857
858int evp_pkey_ctx_get_params_strict(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
859{
4fe54d67
NT		 860 if (ctx == NULL || params == NULL)
861 return 0;
862
51373129
RL		 863 /*
864 * We only check for provider side EVP_PKEY_CTX. For #legacy, we
865 * depend on the translation that happens in EVP_PKEY_CTX_get_params()
866 * call, and that the resulting ctrl call will return -2 if it doesn't
867 * known the ctrl command number.
868 */
869 if (evp_pkey_ctx_is_provided(ctx)) {
870 const OSSL_PARAM *gettable = EVP_PKEY_CTX_gettable_params(ctx);
871 const OSSL_PARAM *p;
872
873 for (p = params; p->key != NULL; p++ ) {
874 /* Check the ctx actually understands this parameter */
875 if (OSSL_PARAM_locate_const(gettable, p->key) == NULL )
876 return -2;
877 }
4fe54d67
NT		 878 }
879
880 return EVP_PKEY_CTX_get_params(ctx, params);
881}
882
9c45222d
MC		 883int EVP_PKEY_CTX_get_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD **md)
884{
ac2d58c7 885 OSSL_PARAM sig_md_params[2], *p = sig_md_params;
9c45222d
MC		 886 /* 80 should be big enough */
887 char name[80] = "";
888 const EVP_MD *tmp;
889
864b89ce 890 if (ctx == NULL || !EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
9c45222d
MC		 891 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
892 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
893 return -2;
894 }
895
7c14d0c1 896 if (ctx->op.sig.algctx == NULL)
9c45222d
MC		 897 return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG,
898 EVP_PKEY_CTRL_GET_MD, 0, (void *)(md));
899
900 *p++ = OSSL_PARAM_construct_utf8_string(OSSL_SIGNATURE_PARAM_DIGEST,
901 name,
902 sizeof(name));
ac2d58c7 903 *p = OSSL_PARAM_construct_end();
9c45222d
MC		 904
905 if (!EVP_PKEY_CTX_get_params(ctx, sig_md_params))
906 return 0;
907
7606bed9 908 tmp = evp_get_digestbyname_ex(ctx->libctx, name);
9c45222d
MC		 909 if (tmp == NULL)
910 return 0;
911
912 *md = tmp;
913
914 return 1;
915}
916
05d2f72e
MC		 917static int evp_pkey_ctx_set_md(EVP_PKEY_CTX *ctx, const EVP_MD *md,
918 int fallback, const char *param, int op,
919 int ctrl)
4889dadc 920{
05d2f72e 921 OSSL_PARAM md_params[2], *p = md_params;
4889dadc
MC		 922 const char *name;
923
05d2f72e 924 if (ctx == NULL || (ctx->operation & op) == 0) {
9c45222d
MC		 925 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
926 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
927 return -2;
928 }
929
05d2f72e
MC		 930 if (fallback)
931 return EVP_PKEY_CTX_ctrl(ctx, -1, op, ctrl, 0, (void *)(md));
4889dadc 932
9c45222d
MC		 933 if (md == NULL) {
934 name = "";
9c45222d 935 } else {
ed576acd 936 name = EVP_MD_get0_name(md);
9c45222d 937 }
4889dadc 938
05d2f72e 939 *p++ = OSSL_PARAM_construct_utf8_string(param,
9c45222d
MC		 940 /*
941 * Cast away the const. This is read
942 * only so should be safe
943 */
8b6ffd40 944 (char *)name, 0);
ac2d58c7 945 *p = OSSL_PARAM_construct_end();
4889dadc 946
05d2f72e
MC		 947 return EVP_PKEY_CTX_set_params(ctx, md_params);
948}
949
950int EVP_PKEY_CTX_set_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD *md)
951{
7c14d0c1 952 return evp_pkey_ctx_set_md(ctx, md, ctx->op.sig.algctx == NULL,
05d2f72e
MC		 953 OSSL_SIGNATURE_PARAM_DIGEST,
954 EVP_PKEY_OP_TYPE_SIG, EVP_PKEY_CTRL_MD);
4889dadc
MC		 955}
956
ac2d58c7
MC		 957int EVP_PKEY_CTX_set_tls1_prf_md(EVP_PKEY_CTX *ctx, const EVP_MD *md)
958{
7c14d0c1 959 return evp_pkey_ctx_set_md(ctx, md, ctx->op.kex.algctx == NULL,
05d2f72e
MC		 960 OSSL_KDF_PARAM_DIGEST,
961 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_TLS_MD);
962}
963
964static int evp_pkey_ctx_set1_octet_string(EVP_PKEY_CTX *ctx, int fallback,
965 const char *param, int op, int ctrl,
966 const unsigned char *data,
967 int datalen)
968{
969 OSSL_PARAM octet_string_params[2], *p = octet_string_params;
ac2d58c7 970
5d51925a 971 if (ctx == NULL || (ctx->operation & op) == 0) {
ac2d58c7
MC		 972 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
973 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
974 return -2;
975 }
976
0be6cf0c 977 /* Code below to be removed when legacy support is dropped. */
05d2f72e
MC		 978 if (fallback)
979 return EVP_PKEY_CTX_ctrl(ctx, -1, op, ctrl, datalen, (void *)(data));
0be6cf0c 980 /* end of legacy support */
ac2d58c7 981
05d2f72e
MC		 982 if (datalen < 0) {
983 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_LENGTH);
984 return 0;
ac2d58c7
MC		 985 }
986
05d2f72e 987 *p++ = OSSL_PARAM_construct_octet_string(param,
ac2d58c7
MC		 988 /*
989 * Cast away the const. This is read
990 * only so should be safe
991 */
05d2f72e
MC		 992 (unsigned char *)data,
993 (size_t)datalen);
194de849 994 *p = OSSL_PARAM_construct_end();
ac2d58c7 995
05d2f72e 996 return EVP_PKEY_CTX_set_params(ctx, octet_string_params);
ac2d58c7
MC		 997}
998
999int EVP_PKEY_CTX_set1_tls1_prf_secret(EVP_PKEY_CTX *ctx,
1000 const unsigned char *sec, int seclen)
1001{
7c14d0c1 1002 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
05d2f72e
MC		 1003 OSSL_KDF_PARAM_SECRET,
1004 EVP_PKEY_OP_DERIVE,
1005 EVP_PKEY_CTRL_TLS_SECRET,
1006 sec, seclen);
1007}
ac2d58c7 1008
05d2f72e
MC		 1009int EVP_PKEY_CTX_add1_tls1_prf_seed(EVP_PKEY_CTX *ctx,
1010 const unsigned char *seed, int seedlen)
1011{
7c14d0c1 1012 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
05d2f72e
MC		 1013 OSSL_KDF_PARAM_SEED,
1014 EVP_PKEY_OP_DERIVE,
1015 EVP_PKEY_CTRL_TLS_SEED,
1016 seed, seedlen);
1017}
ac2d58c7 1018
05d2f72e
MC		 1019int EVP_PKEY_CTX_set_hkdf_md(EVP_PKEY_CTX *ctx, const EVP_MD *md)
1020{
7c14d0c1 1021 return evp_pkey_ctx_set_md(ctx, md, ctx->op.kex.algctx == NULL,
05d2f72e
MC		 1022 OSSL_KDF_PARAM_DIGEST,
1023 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_HKDF_MD);
1024}
ac2d58c7 1025
05d2f72e
MC		 1026int EVP_PKEY_CTX_set1_hkdf_salt(EVP_PKEY_CTX *ctx,
1027 const unsigned char *salt, int saltlen)
1028{
7c14d0c1 1029 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
05d2f72e
MC		 1030 OSSL_KDF_PARAM_SALT,
1031 EVP_PKEY_OP_DERIVE,
1032 EVP_PKEY_CTRL_HKDF_SALT,
1033 salt, saltlen);
1034}
ac2d58c7 1035
05d2f72e
MC		 1036int EVP_PKEY_CTX_set1_hkdf_key(EVP_PKEY_CTX *ctx,
1037 const unsigned char *key, int keylen)
1038{
7c14d0c1 1039 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
05d2f72e
MC		 1040 OSSL_KDF_PARAM_KEY,
1041 EVP_PKEY_OP_DERIVE,
1042 EVP_PKEY_CTRL_HKDF_KEY,
1043 key, keylen);
1044}
ac2d58c7 1045
05d2f72e
MC		 1046int EVP_PKEY_CTX_add1_hkdf_info(EVP_PKEY_CTX *ctx,
1047 const unsigned char *info, int infolen)
1048{
7c14d0c1 1049 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
05d2f72e
MC		 1050 OSSL_KDF_PARAM_INFO,
1051 EVP_PKEY_OP_DERIVE,
1052 EVP_PKEY_CTRL_HKDF_INFO,
1053 info, infolen);
ac2d58c7
MC		 1054}
1055
ed576acd 1056int EVP_PKEY_CTX_set_hkdf_mode(EVP_PKEY_CTX *ctx, int mode)
ac2d58c7 1057{
05d2f72e 1058 OSSL_PARAM int_params[2], *p = int_params;
ac2d58c7
MC		 1059
1060 if (ctx == NULL || !EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
1061 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1062 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
1063 return -2;
1064 }
1065
0be6cf0c 1066 /* Code below to be removed when legacy support is dropped. */
7c14d0c1 1067 if (ctx->op.kex.algctx == NULL)
ac2d58c7 1068 return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_DERIVE,
05d2f72e 1069 EVP_PKEY_CTRL_HKDF_MODE, mode, NULL);
0be6cf0c 1070 /* end of legacy support */
ac2d58c7 1071
05d2f72e
MC		 1072 if (mode < 0) {
1073 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_VALUE);
ac2d58c7
MC		 1074 return 0;
1075 }
1076
05d2f72e 1077 *p++ = OSSL_PARAM_construct_int(OSSL_KDF_PARAM_MODE, &mode);
194de849 1078 *p = OSSL_PARAM_construct_end();
ac2d58c7 1079
05d2f72e 1080 return EVP_PKEY_CTX_set_params(ctx, int_params);
ac2d58c7
MC		 1081}
1082
194de849
MC		 1083int EVP_PKEY_CTX_set1_pbe_pass(EVP_PKEY_CTX *ctx, const char *pass,
1084 int passlen)
1085{
7c14d0c1 1086 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
194de849
MC		 1087 OSSL_KDF_PARAM_PASSWORD,
1088 EVP_PKEY_OP_DERIVE,
1089 EVP_PKEY_CTRL_PASS,
1090 (const unsigned char *)pass, passlen);
1091}
1092
1093int EVP_PKEY_CTX_set1_scrypt_salt(EVP_PKEY_CTX *ctx,
1094 const unsigned char *salt, int saltlen)
1095{
7c14d0c1 1096 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
194de849
MC		 1097 OSSL_KDF_PARAM_SALT,
1098 EVP_PKEY_OP_DERIVE,
1099 EVP_PKEY_CTRL_SCRYPT_SALT,
1100 salt, saltlen);
1101}
1102
1103static int evp_pkey_ctx_set_uint64(EVP_PKEY_CTX *ctx, const char *param,
1104 int op, int ctrl, uint64_t val)
1105{
1106 OSSL_PARAM uint64_params[2], *p = uint64_params;
1107
1108 if (ctx == NULL || !EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
1109 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1110 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
1111 return -2;
1112 }
1113
0be6cf0c 1114 /* Code below to be removed when legacy support is dropped. */
7c14d0c1 1115 if (ctx->op.kex.algctx == NULL)
194de849 1116 return EVP_PKEY_CTX_ctrl_uint64(ctx, -1, op, ctrl, val);
0be6cf0c 1117 /* end of legacy support */
194de849
MC		 1118
1119 *p++ = OSSL_PARAM_construct_uint64(param, &val);
1120 *p = OSSL_PARAM_construct_end();
1121
1122 return EVP_PKEY_CTX_set_params(ctx, uint64_params);
1123}
1124
1125int EVP_PKEY_CTX_set_scrypt_N(EVP_PKEY_CTX *ctx, uint64_t n)
1126{
1127 return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_N,
1128 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_SCRYPT_N,
1129 n);
1130}
1131
1132int EVP_PKEY_CTX_set_scrypt_r(EVP_PKEY_CTX *ctx, uint64_t r)
1133{
1134 return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_R,
1135 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_SCRYPT_R,
1136 r);
1137}
1138
1139int EVP_PKEY_CTX_set_scrypt_p(EVP_PKEY_CTX *ctx, uint64_t p)
1140{
1141 return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_P,
1142 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_SCRYPT_P,
1143 p);
1144}
1145
1146int EVP_PKEY_CTX_set_scrypt_maxmem_bytes(EVP_PKEY_CTX *ctx,
1147 uint64_t maxmem_bytes)
1148{
1149 return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_MAXMEM,
1150 EVP_PKEY_OP_DERIVE,
1151 EVP_PKEY_CTRL_SCRYPT_MAXMEM_BYTES,
1152 maxmem_bytes);
1153}
1154
5d51925a
MC		 1155int EVP_PKEY_CTX_set_mac_key(EVP_PKEY_CTX *ctx, const unsigned char *key,
1156 int keylen)
1157{
1158 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.keymgmt.genctx == NULL,
1159 OSSL_PKEY_PARAM_PRIV_KEY,
1160 EVP_PKEY_OP_KEYGEN,
1161 EVP_PKEY_CTRL_SET_MAC_KEY,
1162 key, keylen);
1163}
1164
80f4fd18
SL		 1165int EVP_PKEY_CTX_set_kem_op(EVP_PKEY_CTX *ctx, const char *op)
1166{
1167 OSSL_PARAM params[2], *p = params;
1168
1169 if (ctx == NULL || op == NULL) {
1170 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_VALUE);
1171 return 0;
1172 }
1173 if (!EVP_PKEY_CTX_IS_KEM_OP(ctx)) {
1174 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1175 return -2;
1176 }
1177 *p++ = OSSL_PARAM_construct_utf8_string(OSSL_KEM_PARAM_OPERATION,
1178 (char *)op, 0);
1179 *p = OSSL_PARAM_construct_end();
1180 return EVP_PKEY_CTX_set_params(ctx, params);
1181}
1182
8d6481f5
RL		 1183int evp_pkey_ctx_set1_id_prov(EVP_PKEY_CTX *ctx, const void *id, int len)
1184{
1185 OSSL_PARAM params[2], *p = params;
1186 int ret;
1187
1188 if (!EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
1189 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1190 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
1191 return -2;
1192 }
1193
1194 *p++ = OSSL_PARAM_construct_octet_string(OSSL_PKEY_PARAM_DIST_ID,
1195 /*
1196 * Cast away the const. This is
1197 * read only so should be safe
1198 */
1199 (void *)id, (size_t)len);
1200 *p++ = OSSL_PARAM_construct_end();
1201
1202 ret = evp_pkey_ctx_set_params_strict(ctx, params);
1203 if (ret == -2)
1204 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1205 return ret;
1206}
1207
1208int EVP_PKEY_CTX_set1_id(EVP_PKEY_CTX *ctx, const void *id, int len)
1209{
1210 return EVP_PKEY_CTX_ctrl(ctx, -1, -1,
1211 EVP_PKEY_CTRL_SET1_ID, (int)len, (void*)(id));
1212}
1213
1214static int get1_id_data(EVP_PKEY_CTX *ctx, void *id, size_t *id_len)
1215{
1216 int ret;
1217 void *tmp_id = NULL;
1218 OSSL_PARAM params[2], *p = params;
1219
1220 if (!EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
1221 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1222 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
1223 return -2;
1224 }
1225
1226 *p++ = OSSL_PARAM_construct_octet_ptr(OSSL_PKEY_PARAM_DIST_ID,
1227 &tmp_id, 0);
1228 *p++ = OSSL_PARAM_construct_end();
1229
1230 ret = evp_pkey_ctx_get_params_strict(ctx, params);
1231 if (ret == -2) {
1232 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1233 } else if (ret > 0) {
1234 size_t tmp_id_len = params[0].return_size;
1235
1236 if (id != NULL)
1237 memcpy(id, tmp_id, tmp_id_len);
1238 if (id_len != NULL)
1239 *id_len = tmp_id_len;
1240 }
1241 return ret;
1242}
1243
1244int evp_pkey_ctx_get1_id_prov(EVP_PKEY_CTX *ctx, void *id)
1245{
1246 return get1_id_data(ctx, id, NULL);
1247}
1248
1249int evp_pkey_ctx_get1_id_len_prov(EVP_PKEY_CTX *ctx, size_t *id_len)
1250{
1251 return get1_id_data(ctx, NULL, id_len);
1252}
1253
1254int EVP_PKEY_CTX_get1_id(EVP_PKEY_CTX *ctx, void *id)
1255{
1256 return EVP_PKEY_CTX_ctrl(ctx, -1, -1, EVP_PKEY_CTRL_GET1_ID, 0, (void*)id);
1257}
1258
1259int EVP_PKEY_CTX_get1_id_len(EVP_PKEY_CTX *ctx, size_t *id_len)
1260{
1261 return EVP_PKEY_CTX_ctrl(ctx, -1, -1,
1262 EVP_PKEY_CTRL_GET1_ID_LEN, 0, (void*)id_len);
1263}
1264
86df26b3
RL		 1265static int evp_pkey_ctx_ctrl_int(EVP_PKEY_CTX *ctx, int keytype, int optype,
1266 int cmd, int p1, void *p2)
0f113f3e 1267{
86df26b3 1268 int ret = 0;
4803717f 1269
86df26b3
RL		 1270 /*
1271 * If the method has a |digest_custom| function, we can relax the
1272 * operation type check, since this can be called before the operation
1273 * is initialized.
1274 */
1275 if (ctx->pmeth == NULL || ctx->pmeth->digest_custom == NULL) {
1276 if (ctx->operation == EVP_PKEY_OP_UNDEFINED) {
9311d0c4 1277 ERR_raise(ERR_LIB_EVP, EVP_R_NO_OPERATION_SET);
86df26b3
RL		 1278 return -1;
1279 }
35aca9ec 1280
86df26b3 1281 if ((optype != -1) && !(ctx->operation & optype)) {
9311d0c4 1282 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION);
86df26b3
RL		 1283 return -1;
1284 }
0f113f3e 1285 }
0f113f3e 1286
86df26b3
RL		 1287 switch (evp_pkey_ctx_state(ctx)) {
1288 case EVP_PKEY_STATE_PROVIDER:
5524580b 1289 return evp_pkey_ctx_ctrl_to_param(ctx, keytype, optype, cmd, p1, p2);
86df26b3
RL		 1290 case EVP_PKEY_STATE_UNKNOWN:
1291 case EVP_PKEY_STATE_LEGACY:
1292 if (ctx->pmeth == NULL || ctx->pmeth->ctrl == NULL) {
9311d0c4 1293 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
86df26b3
RL		 1294 return -2;
1295 }
1296 if ((keytype != -1) && (ctx->pmeth->pkey_id != keytype))
1297 return -1;
4803717f 1298
86df26b3 1299 ret = ctx->pmeth->ctrl(ctx, cmd, p1, p2);
0f113f3e 1300
86df26b3 1301 if (ret == -2)
9311d0c4 1302 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
86df26b3 1303 break;
0f113f3e 1304 }
86df26b3
RL		 1305 return ret;
1306}
0f113f3e 1307
86df26b3
RL		 1308int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype,
1309 int cmd, int p1, void *p2)
1310{
1311 int ret = 0;
1312
d65ab22e 1313 if (ctx == NULL) {
9311d0c4 1314 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
d65ab22e
SL		 1315 return -2;
1316 }
86df26b3
RL		 1317 /* If unsupported, we don't want that reported here */
1318 ERR_set_mark();
1319 ret = evp_pkey_ctx_store_cached_data(ctx, keytype, optype,
1320 cmd, NULL, p2, p1);
1321 if (ret == -2) {
1322 ERR_pop_to_mark();
1323 } else {
1324 ERR_clear_last_mark();
1325 /*
1326 * If there was an error, there was an error.
1327 * If the operation isn't initialized yet, we also return, as
1328 * the saved values will be used then anyway.
1329 */
1330 if (ret < 1 || ctx->operation == EVP_PKEY_OP_UNDEFINED)
1331 return ret;
1332 }
86df26b3 1333 return evp_pkey_ctx_ctrl_int(ctx, keytype, optype, cmd, p1, p2);
0f113f3e 1334}
0b6f3c66 1335
cefa762e 1336int EVP_PKEY_CTX_ctrl_uint64(EVP_PKEY_CTX *ctx, int keytype, int optype,
64bf1016 1337 int cmd, uint64_t value)
cefa762e
JB		 1338{
1339 return EVP_PKEY_CTX_ctrl(ctx, keytype, optype, cmd, 0, &value);
1340}
1341
19dbb742 1342
86df26b3
RL		 1343static int evp_pkey_ctx_ctrl_str_int(EVP_PKEY_CTX *ctx,
1344 const char *name, const char *value)
0f113f3e 1345{
86df26b3
RL		 1346 int ret = 0;
1347
35aca9ec 1348 if (ctx == NULL) {
9311d0c4 1349 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
35aca9ec
MC		 1350 return -2;
1351 }
1352
86df26b3
RL		 1353 switch (evp_pkey_ctx_state(ctx)) {
1354 case EVP_PKEY_STATE_PROVIDER:
5524580b 1355 return evp_pkey_ctx_ctrl_str_to_param(ctx, name, value);
86df26b3
RL		 1356 case EVP_PKEY_STATE_UNKNOWN:
1357 case EVP_PKEY_STATE_LEGACY:
1358 if (ctx == NULL || ctx->pmeth == NULL || ctx->pmeth->ctrl_str == NULL) {
9311d0c4 1359 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
86df26b3
RL		 1360 return -2;
1361 }
1362 if (strcmp(name, "digest") == 0)
b9689452
RL		 1363 ret = EVP_PKEY_CTX_md(ctx,
1364 EVP_PKEY_OP_TYPE_SIG | EVP_PKEY_OP_TYPE_CRYPT,
86df26b3
RL		 1365 EVP_PKEY_CTRL_MD, value);
1366 else
1367 ret = ctx->pmeth->ctrl_str(ctx, name, value);
1368 break;
1369 }
35aca9ec 1370
86df26b3
RL		 1371 return ret;
1372}
1373
1374int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX *ctx,
1375 const char *name, const char *value)
1376{
1377 int ret = 0;
1378
1379 /* If unsupported, we don't want that reported here */
1380 ERR_set_mark();
1381 ret = evp_pkey_ctx_store_cached_data(ctx, -1, -1, -1,
1382 name, value, strlen(value) + 1);
1383 if (ret == -2) {
1384 ERR_pop_to_mark();
1385 } else {
1386 ERR_clear_last_mark();
1387 /*
1388 * If there was an error, there was an error.
1389 * If the operation isn't initialized yet, we also return, as
1390 * the saved values will be used then anyway.
1391 */
1392 if (ret < 1 || ctx->operation == EVP_PKEY_OP_UNDEFINED)
1393 return ret;
1394 }
1395
1396 return evp_pkey_ctx_ctrl_str_int(ctx, name, value);
1397}
1398
1399static int decode_cmd(int cmd, const char *name)
1400{
1401 if (cmd == -1) {
1402 /*
1403 * The consequence of the assertion not being true is that this
1404 * function will return -1, which will cause the calling functions
1405 * to signal that the command is unsupported... in non-debug mode.
1406 */
1407 if (ossl_assert(name != NULL))
1408 if (strcmp(name, "distid") == 0 || strcmp(name, "hexdistid") == 0)
1409 cmd = EVP_PKEY_CTRL_SET1_ID;
1410 }
1411
1412 return cmd;
1413}
1414
1415static int evp_pkey_ctx_store_cached_data(EVP_PKEY_CTX *ctx,
1416 int keytype, int optype,
1417 int cmd, const char *name,
1418 const void *data, size_t data_len)
1419{
bbf4dc96
RL		 1420 /*
1421 * Check that it's one of the supported commands. The ctrl commands
1422 * number cases here must correspond to the cases in the bottom switch
1423 * in this function.
1424 */
1425 switch (cmd = decode_cmd(cmd, name)) {
1426 case EVP_PKEY_CTRL_SET1_ID:
1427 break;
1428 default:
1429 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1430 return -2;
1431 }
1432
977e95b9
RL		 1433 if (keytype != -1) {
1434 switch (evp_pkey_ctx_state(ctx)) {
1435 case EVP_PKEY_STATE_PROVIDER:
1436 if (ctx->keymgmt == NULL) {
1437 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1438 return -2;
1439 }
1440 if (!EVP_KEYMGMT_is_a(ctx->keymgmt,
1441 evp_pkey_type2name(keytype))) {
1442 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION);
1443 return -1;
1444 }
1445 break;
1446 case EVP_PKEY_STATE_UNKNOWN:
1447 case EVP_PKEY_STATE_LEGACY:
1448 if (ctx->pmeth == NULL) {
1449 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1450 return -2;
1451 }
bbf4dc96 1452 if (EVP_PKEY_type(ctx->pmeth->pkey_id) != EVP_PKEY_type(keytype)) {
977e95b9
RL		 1453 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION);
1454 return -1;
1455 }
1456 break;
1457 }
1458 }
1459 if (optype != -1 && (ctx->operation & optype) == 0) {
86df26b3
RL		 1460 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION);
1461 return -1;
0f113f3e 1462 }
86df26b3 1463
86df26b3
RL		 1464 switch (cmd) {
1465 case EVP_PKEY_CTRL_SET1_ID:
1466 evp_pkey_ctx_free_cached_data(ctx, cmd, name);
1467 if (name != NULL) {
1468 ctx->cached_parameters.dist_id_name = OPENSSL_strdup(name);
1469 if (ctx->cached_parameters.dist_id_name == NULL) {
1470 ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
1471 return 0;
1472 }
1473 }
1474 if (data_len > 0) {
1475 ctx->cached_parameters.dist_id = OPENSSL_memdup(data, data_len);
1476 if (ctx->cached_parameters.dist_id == NULL) {
1477 ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
1478 return 0;
1479 }
1480 }
1481 ctx->cached_parameters.dist_id_set = 1;
1482 ctx->cached_parameters.dist_id_len = data_len;
bbf4dc96 1483 break;
86df26b3 1484 }
bbf4dc96 1485 return 1;
86df26b3
RL		 1486}
1487
1488static void evp_pkey_ctx_free_cached_data(EVP_PKEY_CTX *ctx,
1489 int cmd, const char *name)
1490{
1491 cmd = decode_cmd(cmd, name);
1492 switch (cmd) {
1493 case EVP_PKEY_CTRL_SET1_ID:
1494 OPENSSL_free(ctx->cached_parameters.dist_id);
1495 OPENSSL_free(ctx->cached_parameters.dist_id_name);
1496 ctx->cached_parameters.dist_id = NULL;
1497 ctx->cached_parameters.dist_id_name = NULL;
1498 break;
1499 }
1500}
1501
1502static void evp_pkey_ctx_free_all_cached_data(EVP_PKEY_CTX *ctx)
1503{
1504 evp_pkey_ctx_free_cached_data(ctx, EVP_PKEY_CTRL_SET1_ID, NULL);
1505}
1506
1507int evp_pkey_ctx_use_cached_data(EVP_PKEY_CTX *ctx)
1508{
1509 int ret = 1;
1510
1511 if (ret && ctx->cached_parameters.dist_id_set) {
1512 const char *name = ctx->cached_parameters.dist_id_name;
1513 const void *val = ctx->cached_parameters.dist_id;
1514 size_t len = ctx->cached_parameters.dist_id_len;
1515
1516 if (name != NULL)
1517 ret = evp_pkey_ctx_ctrl_str_int(ctx, name, val);
1518 else
1519 ret = evp_pkey_ctx_ctrl_int(ctx, -1, ctx->operation,
1520 EVP_PKEY_CTRL_SET1_ID,
1521 (int)len, (void *)val);
1522 }
1523
1524 return ret;
0f113f3e 1525}
f5cda4cb 1526
b4250010 1527OSSL_LIB_CTX *EVP_PKEY_CTX_get0_libctx(EVP_PKEY_CTX *ctx)
0b3a4ef2
MC		 1528{
1529 return ctx->libctx;
1530}
1531
29000e43 1532const char *EVP_PKEY_CTX_get0_propq(EVP_PKEY_CTX *ctx)
0b3a4ef2
MC		 1533{
1534 return ctx->propquery;
1535}
1536
99119000
DSH		 1537/* Utility functions to send a string of hex string to a ctrl */
1538
1539int EVP_PKEY_CTX_str2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *str)
1540{
1541 size_t len;
1542
1543 len = strlen(str);
1544 if (len > INT_MAX)
1545 return -1;
1546 return ctx->pmeth->ctrl(ctx, cmd, len, (void *)str);
1547}
1548
1549int EVP_PKEY_CTX_hex2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *hex)
1550{
1551 unsigned char *bin;
1552 long binlen;
1553 int rv = -1;
1554
14f051a0 1555 bin = OPENSSL_hexstr2buf(hex, &binlen);
99119000
DSH		 1556 if (bin == NULL)
1557 return 0;
1558 if (binlen <= INT_MAX)
1559 rv = ctx->pmeth->ctrl(ctx, cmd, binlen, bin);
1560 OPENSSL_free(bin);
1561 return rv;
1562}
52ad523c 1563
410877ba
DSH		 1564/* Pass a message digest to a ctrl */
1565int EVP_PKEY_CTX_md(EVP_PKEY_CTX *ctx, int optype, int cmd, const char *md)
1566{
1567 const EVP_MD *m;
c82bafc5 1568
410877ba 1569 if (md == NULL || (m = EVP_get_digestbyname(md)) == NULL) {
9311d0c4 1570 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_DIGEST);
410877ba
DSH		 1571 return 0;
1572 }
1573 return EVP_PKEY_CTX_ctrl(ctx, -1, optype, cmd, 0, (void *)m);
1574}
99119000 1575
b28dea4e 1576int EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 1577{
1578 return ctx->operation;
1579}
b28dea4e
DSH		 1580
1581void EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX *ctx, int *dat, int datlen)
0f113f3e
MC		 1582{
1583 ctx->keygen_info = dat;
1584 ctx->keygen_info_count = datlen;
1585}
b28dea4e 1586
f5cda4cb 1587void EVP_PKEY_CTX_set_data(EVP_PKEY_CTX *ctx, void *data)
0f113f3e
MC		 1588{
1589 ctx->data = data;
1590}
f5cda4cb 1591
9fdcc21f 1592void *EVP_PKEY_CTX_get_data(const EVP_PKEY_CTX *ctx)
0f113f3e
MC		 1593{
1594 return ctx->data;
1595}
f5cda4cb 1596
81cebb8b 1597EVP_PKEY *EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 1598{
1599 return ctx->pkey;
1600}
81cebb8b 1601
0e1dba93 1602EVP_PKEY *EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 1603{
1604 return ctx->peerkey;
1605}
1606
f5cda4cb 1607void EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX *ctx, void *data)
0f113f3e
MC		 1608{
1609 ctx->app_data = data;
1610}
f5cda4cb
DSH		 1611
1612void *EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 1613{
1614 return ctx->app_data;
1615}
ba30bad5
DSH		 1616
1617void EVP_PKEY_meth_set_init(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1618 int (*init) (EVP_PKEY_CTX *ctx))
1619{
1620 pmeth->init = init;
1621}
8bdcef40
DSH		 1622
1623void EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD *pmeth,
0f113f3e 1624 int (*copy) (EVP_PKEY_CTX *dst,
9fdcc21f 1625 const EVP_PKEY_CTX *src))
0f113f3e
MC		 1626{
1627 pmeth->copy = copy;
1628}
ba30bad5
DSH		 1629
1630void EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1631 void (*cleanup) (EVP_PKEY_CTX *ctx))
1632{
1633 pmeth->cleanup = cleanup;
1634}
ba30bad5
DSH		 1635
1636void EVP_PKEY_meth_set_paramgen(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1637 int (*paramgen_init) (EVP_PKEY_CTX *ctx),
1638 int (*paramgen) (EVP_PKEY_CTX *ctx,
1639 EVP_PKEY *pkey))
1640{
1641 pmeth->paramgen_init = paramgen_init;
1642 pmeth->paramgen = paramgen;
1643}
ba30bad5
DSH		 1644
1645void EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1646 int (*keygen_init) (EVP_PKEY_CTX *ctx),
1647 int (*keygen) (EVP_PKEY_CTX *ctx,
1648 EVP_PKEY *pkey))
1649{
1650 pmeth->keygen_init = keygen_init;
1651 pmeth->keygen = keygen;
1652}
ba30bad5
DSH		 1653
1654void EVP_PKEY_meth_set_sign(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1655 int (*sign_init) (EVP_PKEY_CTX *ctx),
1656 int (*sign) (EVP_PKEY_CTX *ctx,
1657 unsigned char *sig, size_t *siglen,
1658 const unsigned char *tbs,
1659 size_t tbslen))
1660{
1661 pmeth->sign_init = sign_init;
1662 pmeth->sign = sign;
1663}
ba30bad5
DSH		 1664
1665void EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1666 int (*verify_init) (EVP_PKEY_CTX *ctx),
1667 int (*verify) (EVP_PKEY_CTX *ctx,
1668 const unsigned char *sig,
1669 size_t siglen,
1670 const unsigned char *tbs,
1671 size_t tbslen))
1672{
1673 pmeth->verify_init = verify_init;
1674 pmeth->verify = verify;
1675}
ba30bad5
DSH		 1676
1677void EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1678 int (*verify_recover_init) (EVP_PKEY_CTX
1679 *ctx),
1680 int (*verify_recover) (EVP_PKEY_CTX
1681 *ctx,
1682 unsigned char
1683 *sig,
1684 size_t *siglen,
1685 const unsigned
1686 char *tbs,
1687 size_t tbslen))
1688{
1689 pmeth->verify_recover_init = verify_recover_init;
1690 pmeth->verify_recover = verify_recover;
1691}
ba30bad5
DSH		 1692
1693void EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1694 int (*signctx_init) (EVP_PKEY_CTX *ctx,
1695 EVP_MD_CTX *mctx),
1696 int (*signctx) (EVP_PKEY_CTX *ctx,
1697 unsigned char *sig,
1698 size_t *siglen,
1699 EVP_MD_CTX *mctx))
1700{
1701 pmeth->signctx_init = signctx_init;
1702 pmeth->signctx = signctx;
1703}
ba30bad5
DSH		 1704
1705void EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1706 int (*verifyctx_init) (EVP_PKEY_CTX *ctx,
1707 EVP_MD_CTX *mctx),
1708 int (*verifyctx) (EVP_PKEY_CTX *ctx,
1709 const unsigned char *sig,
1710 int siglen,
1711 EVP_MD_CTX *mctx))
1712{
1713 pmeth->verifyctx_init = verifyctx_init;
1714 pmeth->verifyctx = verifyctx;
1715}
ba30bad5
DSH		 1716
1717void EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1718 int (*encrypt_init) (EVP_PKEY_CTX *ctx),
1719 int (*encryptfn) (EVP_PKEY_CTX *ctx,
1720 unsigned char *out,
1721 size_t *outlen,
1722 const unsigned char *in,
1723 size_t inlen))
1724{
1725 pmeth->encrypt_init = encrypt_init;
1726 pmeth->encrypt = encryptfn;
1727}
ba30bad5
DSH		 1728
1729void EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1730 int (*decrypt_init) (EVP_PKEY_CTX *ctx),
1731 int (*decrypt) (EVP_PKEY_CTX *ctx,
1732 unsigned char *out,
1733 size_t *outlen,
1734 const unsigned char *in,
1735 size_t inlen))
1736{
1737 pmeth->decrypt_init = decrypt_init;
1738 pmeth->decrypt = decrypt;
1739}
ba30bad5
DSH		 1740
1741void EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1742 int (*derive_init) (EVP_PKEY_CTX *ctx),
1743 int (*derive) (EVP_PKEY_CTX *ctx,
1744 unsigned char *key,
1745 size_t *keylen))
1746{
1747 pmeth->derive_init = derive_init;
1748 pmeth->derive = derive;
1749}
ba30bad5
DSH		 1750
1751void EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1752 int (*ctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
1753 void *p2),
1754 int (*ctrl_str) (EVP_PKEY_CTX *ctx,
1755 const char *type,
1756 const char *value))
1757{
1758 pmeth->ctrl = ctrl;
1759 pmeth->ctrl_str = ctrl_str;
1760}
e7451ed1 1761
2555285f
AH		 1762void EVP_PKEY_meth_set_digestsign(EVP_PKEY_METHOD *pmeth,
1763 int (*digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen,
1764 const unsigned char *tbs, size_t tbslen))
1765{
1766 pmeth->digestsign = digestsign;
1767}
1768
1769void EVP_PKEY_meth_set_digestverify(EVP_PKEY_METHOD *pmeth,
1770 int (*digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig,
1771 size_t siglen, const unsigned char *tbs,
1772 size_t tbslen))
1773{
1774 pmeth->digestverify = digestverify;
1775}
1776
2aee35d3
PY		 1777void EVP_PKEY_meth_set_check(EVP_PKEY_METHOD *pmeth,
1778 int (*check) (EVP_PKEY *pkey))
1779{
1780 pmeth->check = check;
1781}
1782
b0004708
PY		 1783void EVP_PKEY_meth_set_public_check(EVP_PKEY_METHOD *pmeth,
1784 int (*check) (EVP_PKEY *pkey))
1785{
1786 pmeth->public_check = check;
1787}
1788
1789void EVP_PKEY_meth_set_param_check(EVP_PKEY_METHOD *pmeth,
1790 int (*check) (EVP_PKEY *pkey))
1791{
1792 pmeth->param_check = check;
1793}
1794
0a8fdef7
PY		 1795void EVP_PKEY_meth_set_digest_custom(EVP_PKEY_METHOD *pmeth,
1796 int (*digest_custom) (EVP_PKEY_CTX *ctx,
1797 EVP_MD_CTX *mctx))
1798{
1799 pmeth->digest_custom = digest_custom;
1800}
1801
693be9a2 1802void EVP_PKEY_meth_get_init(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1803 int (**pinit) (EVP_PKEY_CTX *ctx))
1804{
1805 *pinit = pmeth->init;
1806}
1807
693be9a2 1808void EVP_PKEY_meth_get_copy(const EVP_PKEY_METHOD *pmeth,
e7451ed1 1809 int (**pcopy) (EVP_PKEY_CTX *dst,
9fdcc21f 1810 const EVP_PKEY_CTX *src))
e7451ed1
DSH		 1811{
1812 *pcopy = pmeth->copy;
1813}
1814
693be9a2 1815void EVP_PKEY_meth_get_cleanup(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1816 void (**pcleanup) (EVP_PKEY_CTX *ctx))
1817{
1818 *pcleanup = pmeth->cleanup;
1819}
1820
693be9a2 1821void EVP_PKEY_meth_get_paramgen(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1822 int (**pparamgen_init) (EVP_PKEY_CTX *ctx),
1823 int (**pparamgen) (EVP_PKEY_CTX *ctx,
1824 EVP_PKEY *pkey))
1825{
1826 if (pparamgen_init)
1827 *pparamgen_init = pmeth->paramgen_init;
1828 if (pparamgen)
1829 *pparamgen = pmeth->paramgen;
1830}
1831
693be9a2 1832void EVP_PKEY_meth_get_keygen(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1833 int (**pkeygen_init) (EVP_PKEY_CTX *ctx),
1834 int (**pkeygen) (EVP_PKEY_CTX *ctx,
1835 EVP_PKEY *pkey))
1836{
1837 if (pkeygen_init)
1838 *pkeygen_init = pmeth->keygen_init;
1839 if (pkeygen)
1840 *pkeygen = pmeth->keygen;
1841}
1842
693be9a2 1843void EVP_PKEY_meth_get_sign(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1844 int (**psign_init) (EVP_PKEY_CTX *ctx),
1845 int (**psign) (EVP_PKEY_CTX *ctx,
1846 unsigned char *sig, size_t *siglen,
1847 const unsigned char *tbs,
1848 size_t tbslen))
1849{
1850 if (psign_init)
1851 *psign_init = pmeth->sign_init;
1852 if (psign)
1853 *psign = pmeth->sign;
1854}
1855
693be9a2 1856void EVP_PKEY_meth_get_verify(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1857 int (**pverify_init) (EVP_PKEY_CTX *ctx),
1858 int (**pverify) (EVP_PKEY_CTX *ctx,
1859 const unsigned char *sig,
1860 size_t siglen,
1861 const unsigned char *tbs,
1862 size_t tbslen))
1863{
1864 if (pverify_init)
1865 *pverify_init = pmeth->verify_init;
1866 if (pverify)
1867 *pverify = pmeth->verify;
1868}
1869
693be9a2 1870void EVP_PKEY_meth_get_verify_recover(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1871 int (**pverify_recover_init) (EVP_PKEY_CTX
1872 *ctx),
1873 int (**pverify_recover) (EVP_PKEY_CTX
1874 *ctx,
1875 unsigned char
1876 *sig,
1877 size_t *siglen,
1878 const unsigned
1879 char *tbs,
1880 size_t tbslen))
1881{
1882 if (pverify_recover_init)
1883 *pverify_recover_init = pmeth->verify_recover_init;
1884 if (pverify_recover)
1885 *pverify_recover = pmeth->verify_recover;
1886}
1887
693be9a2 1888void EVP_PKEY_meth_get_signctx(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1889 int (**psignctx_init) (EVP_PKEY_CTX *ctx,
1890 EVP_MD_CTX *mctx),
1891 int (**psignctx) (EVP_PKEY_CTX *ctx,
1892 unsigned char *sig,
1893 size_t *siglen,
1894 EVP_MD_CTX *mctx))
1895{
1896 if (psignctx_init)
1897 *psignctx_init = pmeth->signctx_init;
1898 if (psignctx)
1899 *psignctx = pmeth->signctx;
1900}
1901
693be9a2 1902void EVP_PKEY_meth_get_verifyctx(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1903 int (**pverifyctx_init) (EVP_PKEY_CTX *ctx,
1904 EVP_MD_CTX *mctx),
1905 int (**pverifyctx) (EVP_PKEY_CTX *ctx,
1906 const unsigned char *sig,
1907 int siglen,
1908 EVP_MD_CTX *mctx))
1909{
1910 if (pverifyctx_init)
1911 *pverifyctx_init = pmeth->verifyctx_init;
1912 if (pverifyctx)
1913 *pverifyctx = pmeth->verifyctx;
1914}
1915
693be9a2 1916void EVP_PKEY_meth_get_encrypt(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1917 int (**pencrypt_init) (EVP_PKEY_CTX *ctx),
1918 int (**pencryptfn) (EVP_PKEY_CTX *ctx,
1919 unsigned char *out,
1920 size_t *outlen,
1921 const unsigned char *in,
1922 size_t inlen))
1923{
1924 if (pencrypt_init)
1925 *pencrypt_init = pmeth->encrypt_init;
1926 if (pencryptfn)
1927 *pencryptfn = pmeth->encrypt;
1928}
1929
693be9a2 1930void EVP_PKEY_meth_get_decrypt(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1931 int (**pdecrypt_init) (EVP_PKEY_CTX *ctx),
1932 int (**pdecrypt) (EVP_PKEY_CTX *ctx,
1933 unsigned char *out,
1934 size_t *outlen,
1935 const unsigned char *in,
1936 size_t inlen))
1937{
1938 if (pdecrypt_init)
1939 *pdecrypt_init = pmeth->decrypt_init;
1940 if (pdecrypt)
1941 *pdecrypt = pmeth->decrypt;
1942}
1943
693be9a2 1944void EVP_PKEY_meth_get_derive(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1945 int (**pderive_init) (EVP_PKEY_CTX *ctx),
1946 int (**pderive) (EVP_PKEY_CTX *ctx,
1947 unsigned char *key,
1948 size_t *keylen))
1949{
1950 if (pderive_init)
1951 *pderive_init = pmeth->derive_init;
1952 if (pderive)
1953 *pderive = pmeth->derive;
1954}
1955
693be9a2 1956void EVP_PKEY_meth_get_ctrl(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1957 int (**pctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
1958 void *p2),
1959 int (**pctrl_str) (EVP_PKEY_CTX *ctx,
1960 const char *type,
1961 const char *value))
1962{
1963 if (pctrl)
1964 *pctrl = pmeth->ctrl;
1965 if (pctrl_str)
1966 *pctrl_str = pmeth->ctrl_str;
1967}
2aee35d3 1968
2555285f
AH		 1969void EVP_PKEY_meth_get_digestsign(EVP_PKEY_METHOD *pmeth,
1970 int (**digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen,
1971 const unsigned char *tbs, size_t tbslen))
1972{
1973 if (digestsign)
1974 *digestsign = pmeth->digestsign;
1975}
1976
1977void EVP_PKEY_meth_get_digestverify(EVP_PKEY_METHOD *pmeth,
1978 int (**digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig,
1979 size_t siglen, const unsigned char *tbs,
1980 size_t tbslen))
1981{
1982 if (digestverify)
1983 *digestverify = pmeth->digestverify;
1984}
1985
693be9a2 1986void EVP_PKEY_meth_get_check(const EVP_PKEY_METHOD *pmeth,
2aee35d3
PY		 1987 int (**pcheck) (EVP_PKEY *pkey))
1988{
34f5c8b1 1989 if (pcheck != NULL)
2aee35d3
PY		 1990 *pcheck = pmeth->check;
1991}
b0004708 1992
693be9a2 1993void EVP_PKEY_meth_get_public_check(const EVP_PKEY_METHOD *pmeth,
b0004708
PY		 1994 int (**pcheck) (EVP_PKEY *pkey))
1995{
34f5c8b1 1996 if (pcheck != NULL)
b0004708
PY		 1997 *pcheck = pmeth->public_check;
1998}
1999
693be9a2 2000void EVP_PKEY_meth_get_param_check(const EVP_PKEY_METHOD *pmeth,
b0004708
PY		 2001 int (**pcheck) (EVP_PKEY *pkey))
2002{
34f5c8b1 2003 if (pcheck != NULL)
b0004708
PY		 2004 *pcheck = pmeth->param_check;
2005}
0a8fdef7
PY		 2006
2007void EVP_PKEY_meth_get_digest_custom(EVP_PKEY_METHOD *pmeth,
2008 int (**pdigest_custom) (EVP_PKEY_CTX *ctx,
2009 EVP_MD_CTX *mctx))
2010{
675f4cee 2011 if (pdigest_custom != NULL)
0a8fdef7
PY		 2012 *pdigest_custom = pmeth->digest_custom;
2013}
e683582b 2014
f844f9eb 2015#endif /* FIPS_MODULE */
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