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Add DH keygen to providers
[thirdparty/openssl.git] / crypto / evp / pmeth_lib.c
CommitLineData
0f113f3e 1/*
b0edda11 2 * Copyright 2006-2018 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>
35aca9ec 24#include "internal/cryptlib.h"
25f2138b
DMSP		 25#include "crypto/asn1.h"
26#include "crypto/evp.h"
7165593c
SL		 27#include "crypto/dh.h"
28#include "internal/ffc.h"
99119000 29#include "internal/numbers.h"
390acbeb 30#include "internal/provider.h"
706457b7 31#include "evp_local.h"
0b6f3c66 32
e683582b
SL		 33#ifndef FIPS_MODE
34
19bd1fa1 35typedef const EVP_PKEY_METHOD *(*pmeth_fn)(void);
0f113f3e 36typedef int sk_cmp_fn_type(const char *const *a, const char *const *b);
5ce278a7 37
df2ee0e2 38static STACK_OF(EVP_PKEY_METHOD) *app_pkey_methods = NULL;
0b6f3c66 39
cefa762e 40/* This array needs to be in order of NIDs */
19bd1fa1 41static pmeth_fn standard_methods[] = {
e683582b 42# ifndef OPENSSL_NO_RSA
19bd1fa1 43 rsa_pkey_method,
e683582b
SL		 44# endif
45# ifndef OPENSSL_NO_DH
19bd1fa1 46 dh_pkey_method,
e683582b
SL		 47# endif
48# ifndef OPENSSL_NO_DSA
19bd1fa1 49 dsa_pkey_method,
e683582b
SL		 50# endif
51# ifndef OPENSSL_NO_EC
19bd1fa1 52 ec_pkey_method,
e683582b 53# endif
19bd1fa1 54 hmac_pkey_method,
e683582b 55# ifndef OPENSSL_NO_CMAC
19bd1fa1 56 cmac_pkey_method,
e683582b
SL		 57# endif
58# ifndef OPENSSL_NO_RSA
19bd1fa1 59 rsa_pss_pkey_method,
e683582b
SL		 60# endif
61# ifndef OPENSSL_NO_DH
19bd1fa1 62 dhx_pkey_method,
e683582b
SL		 63# endif
64# ifndef OPENSSL_NO_SCRYPT
19bd1fa1 65 scrypt_pkey_method,
e683582b 66# endif
19bd1fa1 67 tls1_prf_pkey_method,
e683582b 68# ifndef OPENSSL_NO_EC
19bd1fa1
PS		 69 ecx25519_pkey_method,
70 ecx448_pkey_method,
e683582b 71# endif
19bd1fa1 72 hkdf_pkey_method,
e683582b 73# ifndef OPENSSL_NO_POLY1305
19bd1fa1 74 poly1305_pkey_method,
e683582b
SL		 75# endif
76# ifndef OPENSSL_NO_SIPHASH
19bd1fa1 77 siphash_pkey_method,
e683582b
SL		 78# endif
79# ifndef OPENSSL_NO_EC
19bd1fa1
PS		 80 ed25519_pkey_method,
81 ed448_pkey_method,
e683582b
SL		 82# endif
83# ifndef OPENSSL_NO_SM2
19bd1fa1 84 sm2_pkey_method,
e683582b 85# endif
0f113f3e 86};
0b6f3c66 87
19bd1fa1
PS		 88DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, pmeth_fn, pmeth_func);
89
90static int pmeth_func_cmp(const EVP_PKEY_METHOD *const *a, pmeth_fn const *b)
91{
92 return ((*a)->pkey_id - ((**b)())->pkey_id);
93}
94
95IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, pmeth_fn, pmeth_func);
babb3798 96
0f113f3e
MC		 97static int pmeth_cmp(const EVP_PKEY_METHOD *const *a,
98 const EVP_PKEY_METHOD *const *b)
99{
100 return ((*a)->pkey_id - (*b)->pkey_id);
101}
0b6f3c66 102
c9777d26 103const EVP_PKEY_METHOD *EVP_PKEY_meth_find(int type)
0f113f3e 104{
19bd1fa1 105 pmeth_fn *ret;
0f113f3e 106 EVP_PKEY_METHOD tmp;
19bd1fa1 107 const EVP_PKEY_METHOD *t = &tmp;
12a765a5 108
0f113f3e
MC		 109 tmp.pkey_id = type;
110 if (app_pkey_methods) {
111 int idx;
112 idx = sk_EVP_PKEY_METHOD_find(app_pkey_methods, &tmp);
113 if (idx >= 0)
114 return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx);
115 }
19bd1fa1
PS		 116 ret = OBJ_bsearch_pmeth_func(&t, standard_methods,
117 sizeof(standard_methods) /
118 sizeof(pmeth_fn));
12a765a5 119 if (ret == NULL || *ret == NULL)
0f113f3e 120 return NULL;
19bd1fa1 121 return (**ret)();
0f113f3e 122}
0b6f3c66 123
e683582b
SL		 124EVP_PKEY_METHOD *EVP_PKEY_meth_new(int id, int flags)
125{
126 EVP_PKEY_METHOD *pmeth;
127
128 pmeth = OPENSSL_zalloc(sizeof(*pmeth));
129 if (pmeth == NULL) {
130 EVPerr(EVP_F_EVP_PKEY_METH_NEW, ERR_R_MALLOC_FAILURE);
131 return NULL;
132 }
133
134 pmeth->pkey_id = id;
135 pmeth->flags = flags | EVP_PKEY_FLAG_DYNAMIC;
136 return pmeth;
137}
138#endif /* FIPS_MODE */
139
3ee348b0
RL		 140static EVP_PKEY_CTX *int_ctx_new(OPENSSL_CTX *libctx,
141 EVP_PKEY *pkey, ENGINE *e,
4b9e90f4 142 const char *keytype, const char *propquery,
a07c17ef 143 int id)
e683582b 144
0f113f3e
MC		 145{
146 EVP_PKEY_CTX *ret;
d0ea49a8 147 const EVP_PKEY_METHOD *pmeth = NULL;
4b9e90f4 148 EVP_KEYMGMT *keymgmt = NULL;
d0ea49a8
RL		 149
150 /*
151 * When using providers, the context is bound to the algo implementation
152 * later.
153 */
154 if (pkey == NULL && e == NULL && id == -1)
155 goto common;
2f2e6b62 156
982efd77
RL		 157 /*
158 * If the key doesn't contain anything legacy, then it must be provided,
159 * so we extract the necessary information and use that.
160 */
adc9f731 161 if (pkey != NULL && pkey->type == EVP_PKEY_NONE) {
982efd77
RL		 162 /* If we have an engine, something went wrong somewhere... */
163 if (!ossl_assert(e == NULL))
164 return NULL;
4b9e90f4 165 keytype = evp_first_name(pkey->keymgmt->prov, pkey->keymgmt->name_id);
982efd77
RL		 166 goto common;
167 }
e683582b 168#ifndef FIPS_MODE
d0ea49a8
RL		 169 /* TODO(3.0) Legacy code should be removed when all is provider based */
170 /* BEGIN legacy */
0f113f3e 171 if (id == -1) {
a6465b3f 172 if (pkey == NULL)
982efd77 173 return NULL;
2f2e6b62 174 id = pkey->type;
0f113f3e 175 }
60653e5b
RL		 176
177 /*
178 * Here, we extract what information we can for the purpose of
179 * supporting usage with implementations from providers, to make
180 * for a smooth transition from legacy stuff to provider based stuff.
181 *
182 * If an engine is given, this is entirely legacy, and we should not
183 * pretend anything else, so we only set the name when no engine is
184 * given. If both are already given, someone made a mistake, and
185 * since that can only happen internally, it's safe to make an
186 * assertion.
187 */
4b9e90f4 188 if (!ossl_assert(e == NULL || keytype == NULL))
60653e5b
RL		 189 return NULL;
190 if (e == NULL)
4b9e90f4 191 keytype = OBJ_nid2sn(id);
60653e5b 192
e683582b 193# ifndef OPENSSL_NO_ENGINE
c2976edf 194 if (e == NULL && pkey != NULL)
d19b01ad 195 e = pkey->pmeth_engine != NULL ? pkey->pmeth_engine : pkey->engine;
0f113f3e
MC		 196 /* Try to find an ENGINE which implements this method */
197 if (e) {
198 if (!ENGINE_init(e)) {
199 EVPerr(EVP_F_INT_CTX_NEW, ERR_R_ENGINE_LIB);
200 return NULL;
201 }
c2976edf 202 } else {
0f113f3e 203 e = ENGINE_get_pkey_meth_engine(id);
c2976edf 204 }
0f113f3e
MC		 205
206 /*
0d4fb843 207 * If an ENGINE handled this method look it up. Otherwise use internal
0f113f3e
MC		 208 * tables.
209 */
0f113f3e
MC		 210 if (e)
211 pmeth = ENGINE_get_pkey_meth(e, id);
212 else
e683582b 213# endif
0f113f3e 214 pmeth = EVP_PKEY_meth_find(id);
c9777d26 215
0f113f3e 216 if (pmeth == NULL) {
e683582b 217# ifndef OPENSSL_NO_ENGINE
918a27fa 218 ENGINE_finish(e);
e683582b 219# endif
0f113f3e
MC		 220 EVPerr(EVP_F_INT_CTX_NEW, EVP_R_UNSUPPORTED_ALGORITHM);
221 return NULL;
222 }
d0ea49a8 223 /* END legacy */
e683582b 224#endif /* FIPS_MODE */
d0ea49a8 225 common:
4b9e90f4
RL		 226 /*
227 * If there's no engine and there's a name, we try fetching a provider
228 * implementation.
229 */
5fcb97c6
MC		 230 if (e == NULL && keytype != NULL) {
231 /* This could fail so ignore errors */
232 ERR_set_mark();
4b9e90f4 233 keymgmt = EVP_KEYMGMT_fetch(libctx, keytype, propquery);
5fcb97c6
MC		 234 ERR_pop_to_mark();
235 }
4b9e90f4 236
64b25758 237 ret = OPENSSL_zalloc(sizeof(*ret));
90945fa3 238 if (ret == NULL) {
e683582b 239#if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODE)
7c96dbcd 240 ENGINE_finish(e);
a63bf2c5 241#endif
0f113f3e
MC		 242 EVPerr(EVP_F_INT_CTX_NEW, ERR_R_MALLOC_FAILURE);
243 return NULL;
244 }
3ee348b0 245 ret->libctx = libctx;
a07c17ef 246 ret->propquery = propquery;
4b9e90f4
RL		 247 ret->keytype = keytype;
248 ret->keymgmt = keymgmt;
0f113f3e
MC		 249 ret->engine = e;
250 ret->pmeth = pmeth;
251 ret->operation = EVP_PKEY_OP_UNDEFINED;
252 ret->pkey = pkey;
a6465b3f 253 if (pkey != NULL)
03273d61 254 EVP_PKEY_up_ref(pkey);
0f113f3e 255
8b84b075 256 if (pmeth != NULL && pmeth->init != NULL) {
0f113f3e 257 if (pmeth->init(ret) <= 0) {
83b4049a 258 ret->pmeth = NULL;
0f113f3e
MC		 259 EVP_PKEY_CTX_free(ret);
260 return NULL;
261 }
262 }
263
264 return ret;
265}
266
e683582b
SL		 267/*- All methods below can also be used in FIPS_MODE */
268
269EVP_PKEY_CTX *EVP_PKEY_CTX_new_from_name(OPENSSL_CTX *libctx,
270 const char *name,
271 const char *propquery)
272{
273 return int_ctx_new(libctx, NULL, NULL, name, propquery, -1);
274}
275
2ee4a50a
MC		 276EVP_PKEY_CTX *EVP_PKEY_CTX_new_from_pkey(OPENSSL_CTX *libctx, EVP_PKEY *pkey,
277 const char *propquery)
e683582b 278{
2ee4a50a 279 return int_ctx_new(libctx, pkey, NULL, NULL, propquery, -1);
e683582b
SL		 280}
281
864b89ce
MC		 282void evp_pkey_ctx_free_old_ops(EVP_PKEY_CTX *ctx)
283{
e683582b 284 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
864b89ce
MC		 285 if (ctx->op.sig.sigprovctx != NULL && ctx->op.sig.signature != NULL)
286 ctx->op.sig.signature->freectx(ctx->op.sig.sigprovctx);
287 EVP_SIGNATURE_free(ctx->op.sig.signature);
fb1ecf85
RL		 288 ctx->op.sig.sigprovctx = NULL;
289 ctx->op.sig.signature = NULL;
62f49b90 290 } else if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
e683582b
SL		 291 if (ctx->op.kex.exchprovctx != NULL && ctx->op.kex.exchange != NULL)
292 ctx->op.kex.exchange->freectx(ctx->op.kex.exchprovctx);
293 EVP_KEYEXCH_free(ctx->op.kex.exchange);
294 ctx->op.kex.exchprovctx = NULL;
295 ctx->op.kex.exchange = NULL;
62f49b90
SL		 296 }
297/* TODO(3.0): add dependancies and uncomment this when available for fips mode */
298#ifndef FIPS_MODE
299 else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)) {
2c938e2e
MC		 300 if (ctx->op.ciph.ciphprovctx != NULL && ctx->op.ciph.cipher != NULL)
301 ctx->op.ciph.cipher->freectx(ctx->op.ciph.ciphprovctx);
302 EVP_ASYM_CIPHER_free(ctx->op.ciph.cipher);
303 ctx->op.ciph.ciphprovctx = NULL;
304 ctx->op.ciph.cipher = NULL;
62924755
RL		 305 } else if (EVP_PKEY_CTX_IS_GEN_OP(ctx)) {
306 if (ctx->op.keymgmt.genctx != NULL && ctx->keymgmt != NULL)
307 evp_keymgmt_gen_cleanup(ctx->keymgmt, ctx->op.keymgmt.genctx);
864b89ce 308 }
e683582b 309#endif
864b89ce
MC		 310}
311
e683582b 312void EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx)
0f113f3e 313{
e683582b
SL		 314 if (ctx == NULL)
315 return;
316 if (ctx->pmeth && ctx->pmeth->cleanup)
317 ctx->pmeth->cleanup(ctx);
b4faea50 318
e683582b
SL		 319 evp_pkey_ctx_free_old_ops(ctx);
320 EVP_KEYMGMT_free(ctx->keymgmt);
0f113f3e 321
e683582b
SL		 322 EVP_PKEY_free(ctx->pkey);
323 EVP_PKEY_free(ctx->peerkey);
324#if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODE)
325 ENGINE_finish(ctx->engine);
326#endif
327 OPENSSL_free(ctx);
0f113f3e 328}
ba30bad5 329
e683582b
SL		 330#ifndef FIPS_MODE
331
f830c68f 332void EVP_PKEY_meth_get0_info(int *ppkey_id, int *pflags,
0f113f3e
MC		 333 const EVP_PKEY_METHOD *meth)
334{
335 if (ppkey_id)
336 *ppkey_id = meth->pkey_id;
337 if (pflags)
338 *pflags = meth->flags;
339}
f830c68f
DSH		 340
341void EVP_PKEY_meth_copy(EVP_PKEY_METHOD *dst, const EVP_PKEY_METHOD *src)
0f113f3e 342{
f830c68f 343
0f113f3e
MC		 344 dst->init = src->init;
345 dst->copy = src->copy;
346 dst->cleanup = src->cleanup;
f830c68f 347
0f113f3e
MC		 348 dst->paramgen_init = src->paramgen_init;
349 dst->paramgen = src->paramgen;
f830c68f 350
0f113f3e
MC		 351 dst->keygen_init = src->keygen_init;
352 dst->keygen = src->keygen;
f830c68f 353
0f113f3e
MC		 354 dst->sign_init = src->sign_init;
355 dst->sign = src->sign;
f830c68f 356
0f113f3e
MC		 357 dst->verify_init = src->verify_init;
358 dst->verify = src->verify;
f830c68f 359
0f113f3e
MC		 360 dst->verify_recover_init = src->verify_recover_init;
361 dst->verify_recover = src->verify_recover;
f830c68f 362
0f113f3e
MC		 363 dst->signctx_init = src->signctx_init;
364 dst->signctx = src->signctx;
f830c68f 365
0f113f3e
MC		 366 dst->verifyctx_init = src->verifyctx_init;
367 dst->verifyctx = src->verifyctx;
f830c68f 368
0f113f3e
MC		 369 dst->encrypt_init = src->encrypt_init;
370 dst->encrypt = src->encrypt;
f830c68f 371
0f113f3e
MC		 372 dst->decrypt_init = src->decrypt_init;
373 dst->decrypt = src->decrypt;
f830c68f 374
0f113f3e
MC		 375 dst->derive_init = src->derive_init;
376 dst->derive = src->derive;
f830c68f 377
0f113f3e
MC		 378 dst->ctrl = src->ctrl;
379 dst->ctrl_str = src->ctrl_str;
2aee35d3
PY		 380
381 dst->check = src->check;
0f113f3e 382}
f830c68f 383
ba30bad5 384void EVP_PKEY_meth_free(EVP_PKEY_METHOD *pmeth)
0f113f3e
MC		 385{
386 if (pmeth && (pmeth->flags & EVP_PKEY_FLAG_DYNAMIC))
387 OPENSSL_free(pmeth);
388}
ba30bad5 389
f5cda4cb 390EVP_PKEY_CTX *EVP_PKEY_CTX_new(EVP_PKEY *pkey, ENGINE *e)
0f113f3e 391{
3ee348b0 392 return int_ctx_new(NULL, pkey, e, NULL, NULL, -1);
0f113f3e 393}
f5cda4cb
DSH		 394
395EVP_PKEY_CTX *EVP_PKEY_CTX_new_id(int id, ENGINE *e)
0f113f3e 396{
3ee348b0 397 return int_ctx_new(NULL, NULL, e, NULL, NULL, id);
a07c17ef
RL		 398}
399
9fdcc21f 400EVP_PKEY_CTX *EVP_PKEY_CTX_dup(const EVP_PKEY_CTX *pctx)
0f113f3e
MC		 401{
402 EVP_PKEY_CTX *rctx;
ff64702b
MC		 403
404 if (((pctx->pmeth == NULL) || (pctx->pmeth->copy == NULL))
864b89ce
MC		 405 && ((EVP_PKEY_CTX_IS_DERIVE_OP(pctx)
406 && pctx->op.kex.exchprovctx == NULL)
407 || (EVP_PKEY_CTX_IS_SIGNATURE_OP(pctx)
408 && pctx->op.sig.sigprovctx == NULL)))
0f113f3e 409 return NULL;
e683582b 410# ifndef OPENSSL_NO_ENGINE
0f113f3e
MC		 411 /* Make sure it's safe to copy a pkey context using an ENGINE */
412 if (pctx->engine && !ENGINE_init(pctx->engine)) {
413 EVPerr(EVP_F_EVP_PKEY_CTX_DUP, ERR_R_ENGINE_LIB);
414 return 0;
415 }
e683582b 416# endif
ff64702b 417 rctx = OPENSSL_zalloc(sizeof(*rctx));
3484236d
F		 418 if (rctx == NULL) {
419 EVPerr(EVP_F_EVP_PKEY_CTX_DUP, ERR_R_MALLOC_FAILURE);
0f113f3e 420 return NULL;
3484236d 421 }
8bdcef40 422
ff64702b
MC		 423 if (pctx->pkey != NULL)
424 EVP_PKEY_up_ref(pctx->pkey);
425 rctx->pkey = pctx->pkey;
426 rctx->operation = pctx->operation;
3ee348b0 427 rctx->libctx = pctx->libctx;
f23bc0b7 428 rctx->keytype = pctx->keytype;
a07c17ef 429 rctx->propquery = pctx->propquery;
ff64702b 430
864b89ce
MC		 431 if (EVP_PKEY_CTX_IS_DERIVE_OP(pctx)) {
432 if (pctx->op.kex.exchange != NULL) {
433 rctx->op.kex.exchange = pctx->op.kex.exchange;
434 if (!EVP_KEYEXCH_up_ref(rctx->op.kex.exchange)) {
435 OPENSSL_free(rctx);
436 return NULL;
437 }
ff64702b 438 }
864b89ce
MC		 439 if (pctx->op.kex.exchprovctx != NULL) {
440 if (!ossl_assert(pctx->op.kex.exchange != NULL))
441 return NULL;
442 rctx->op.kex.exchprovctx
443 = pctx->op.kex.exchange->dupctx(pctx->op.kex.exchprovctx);
444 if (rctx->op.kex.exchprovctx == NULL) {
445 EVP_KEYEXCH_free(rctx->op.kex.exchange);
446 OPENSSL_free(rctx);
447 return NULL;
448 }
449 return rctx;
450 }
451 } else if (EVP_PKEY_CTX_IS_SIGNATURE_OP(pctx)) {
452 if (pctx->op.sig.signature != NULL) {
453 rctx->op.sig.signature = pctx->op.sig.signature;
454 if (!EVP_SIGNATURE_up_ref(rctx->op.sig.signature)) {
455 OPENSSL_free(rctx);
456 return NULL;
457 }
458 }
459 if (pctx->op.sig.sigprovctx != NULL) {
460 if (!ossl_assert(pctx->op.sig.signature != NULL))
461 return NULL;
462 rctx->op.sig.sigprovctx
463 = pctx->op.sig.signature->dupctx(pctx->op.sig.sigprovctx);
464 if (rctx->op.sig.sigprovctx == NULL) {
465 EVP_SIGNATURE_free(rctx->op.sig.signature);
466 OPENSSL_free(rctx);
467 return NULL;
468 }
469 return rctx;
ff64702b 470 }
2c938e2e
MC		 471 } else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(pctx)) {
472 if (pctx->op.ciph.cipher != NULL) {
473 rctx->op.ciph.cipher = pctx->op.ciph.cipher;
474 if (!EVP_ASYM_CIPHER_up_ref(rctx->op.ciph.cipher)) {
475 OPENSSL_free(rctx);
476 return NULL;
477 }
478 }
479 if (pctx->op.ciph.ciphprovctx != NULL) {
480 if (!ossl_assert(pctx->op.ciph.cipher != NULL))
481 return NULL;
482 rctx->op.ciph.ciphprovctx
483 = pctx->op.ciph.cipher->dupctx(pctx->op.ciph.ciphprovctx);
484 if (rctx->op.ciph.ciphprovctx == NULL) {
485 EVP_ASYM_CIPHER_free(rctx->op.ciph.cipher);
486 OPENSSL_free(rctx);
487 return NULL;
488 }
489 return rctx;
490 }
ff64702b
MC		 491 }
492
0f113f3e 493 rctx->pmeth = pctx->pmeth;
e683582b 494# ifndef OPENSSL_NO_ENGINE
0f113f3e 495 rctx->engine = pctx->engine;
e683582b 496# endif
8bdcef40 497
0f113f3e 498 if (pctx->peerkey)
03273d61 499 EVP_PKEY_up_ref(pctx->peerkey);
0f113f3e 500 rctx->peerkey = pctx->peerkey;
8bdcef40 501
0f113f3e
MC		 502 if (pctx->pmeth->copy(rctx, pctx) > 0)
503 return rctx;
8bdcef40 504
83b4049a 505 rctx->pmeth = NULL;
0f113f3e
MC		 506 EVP_PKEY_CTX_free(rctx);
507 return NULL;
8bdcef40 508
0f113f3e 509}
8bdcef40 510
ba30bad5 511int EVP_PKEY_meth_add0(const EVP_PKEY_METHOD *pmeth)
0f113f3e
MC		 512{
513 if (app_pkey_methods == NULL) {
514 app_pkey_methods = sk_EVP_PKEY_METHOD_new(pmeth_cmp);
3484236d
F		 515 if (app_pkey_methods == NULL){
516 EVPerr(EVP_F_EVP_PKEY_METH_ADD0, ERR_R_MALLOC_FAILURE);
0f113f3e 517 return 0;
3484236d 518 }
0f113f3e 519 }
3484236d
F		 520 if (!sk_EVP_PKEY_METHOD_push(app_pkey_methods, pmeth)) {
521 EVPerr(EVP_F_EVP_PKEY_METH_ADD0, ERR_R_MALLOC_FAILURE);
0f113f3e 522 return 0;
3484236d 523 }
0f113f3e
MC		 524 sk_EVP_PKEY_METHOD_sort(app_pkey_methods);
525 return 1;
526}
ba30bad5 527
0822e89a
PY		 528void evp_app_cleanup_int(void)
529{
530 if (app_pkey_methods != NULL)
531 sk_EVP_PKEY_METHOD_pop_free(app_pkey_methods, EVP_PKEY_meth_free);
532}
533
534int EVP_PKEY_meth_remove(const EVP_PKEY_METHOD *pmeth)
535{
536 const EVP_PKEY_METHOD *ret;
537
538 ret = sk_EVP_PKEY_METHOD_delete_ptr(app_pkey_methods, pmeth);
539
540 return ret == NULL ? 0 : 1;
541}
542
48ed9c23
DSH		 543size_t EVP_PKEY_meth_get_count(void)
544{
545 size_t rv = OSSL_NELEM(standard_methods);
546
547 if (app_pkey_methods)
548 rv += sk_EVP_PKEY_METHOD_num(app_pkey_methods);
549 return rv;
550}
551
552const EVP_PKEY_METHOD *EVP_PKEY_meth_get0(size_t idx)
553{
554 if (idx < OSSL_NELEM(standard_methods))
19bd1fa1 555 return (standard_methods[idx])();
48ed9c23
DSH		 556 if (app_pkey_methods == NULL)
557 return NULL;
558 idx -= OSSL_NELEM(standard_methods);
559 if (idx >= (size_t)sk_EVP_PKEY_METHOD_num(app_pkey_methods))
560 return NULL;
561 return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx);
562}
e683582b 563#endif
48ed9c23 564
e683582b 565int EVP_PKEY_CTX_set_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
0f113f3e 566{
e683582b
SL		 567 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
568 && ctx->op.kex.exchprovctx != NULL
569 && ctx->op.kex.exchange != NULL
570 && ctx->op.kex.exchange->set_ctx_params != NULL)
571 return ctx->op.kex.exchange->set_ctx_params(ctx->op.kex.exchprovctx,
572 params);
573 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
574 && ctx->op.sig.sigprovctx != NULL
575 && ctx->op.sig.signature != NULL
576 && ctx->op.sig.signature->set_ctx_params != NULL)
577 return ctx->op.sig.signature->set_ctx_params(ctx->op.sig.sigprovctx,
578 params);
579 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
580 && ctx->op.ciph.ciphprovctx != NULL
581 && ctx->op.ciph.cipher != NULL
582 && ctx->op.ciph.cipher->set_ctx_params != NULL)
583 return ctx->op.ciph.cipher->set_ctx_params(ctx->op.ciph.ciphprovctx,
584 params);
62924755
RL		 585 if (EVP_PKEY_CTX_IS_GEN_OP(ctx)
586 && ctx->op.keymgmt.genctx != NULL
587 && ctx->keymgmt != NULL
588 && ctx->keymgmt->gen_set_params != NULL)
589 return evp_keymgmt_gen_set_params(ctx->keymgmt, ctx->op.keymgmt.genctx,
590 params);
e683582b 591 return 0;
0f113f3e 592}
5da98aa6 593
e683582b 594#ifndef FIPS_MODE
9c45222d
MC		 595int EVP_PKEY_CTX_get_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
596{
4fe54d67
NT		 597 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
598 && ctx->op.kex.exchprovctx != NULL
599 && ctx->op.kex.exchange != NULL
600 && ctx->op.kex.exchange->get_ctx_params != NULL)
601 return ctx->op.kex.exchange->get_ctx_params(ctx->op.kex.exchprovctx,
602 params);
864b89ce
MC		 603 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
604 && ctx->op.sig.sigprovctx != NULL
605 && ctx->op.sig.signature != NULL
606 && ctx->op.sig.signature->get_ctx_params != NULL)
607 return ctx->op.sig.signature->get_ctx_params(ctx->op.sig.sigprovctx,
608 params);
2c938e2e
MC		 609 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
610 && ctx->op.ciph.ciphprovctx != NULL
611 && ctx->op.ciph.cipher != NULL
612 && ctx->op.ciph.cipher->get_ctx_params != NULL)
613 return ctx->op.ciph.cipher->get_ctx_params(ctx->op.ciph.ciphprovctx,
614 params);
2b9add69
RL		 615 if (EVP_PKEY_CTX_IS_GEN_OP(ctx)
616 && ctx->op.keymgmt.genctx != NULL
617 && ctx->keymgmt != NULL
618 && ctx->keymgmt->gen_get_params != NULL)
619 return evp_keymgmt_gen_get_params(ctx->keymgmt, ctx->op.keymgmt.genctx,
620 params);
9c45222d
MC		 621 return 0;
622}
623
624const OSSL_PARAM *EVP_PKEY_CTX_gettable_params(EVP_PKEY_CTX *ctx)
625{
4fe54d67
NT		 626 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
627 && ctx->op.kex.exchange != NULL
628 && ctx->op.kex.exchange->gettable_ctx_params != NULL)
629 return ctx->op.kex.exchange->gettable_ctx_params();
864b89ce
MC		 630 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
631 && ctx->op.sig.signature != NULL
632 && ctx->op.sig.signature->gettable_ctx_params != NULL)
633 return ctx->op.sig.signature->gettable_ctx_params();
9c45222d 634
2c938e2e
MC		 635 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
636 && ctx->op.ciph.cipher != NULL
637 && ctx->op.ciph.cipher->gettable_ctx_params != NULL)
638 return ctx->op.ciph.cipher->gettable_ctx_params();
639
9c45222d
MC		 640 return NULL;
641}
642
9c45222d
MC		 643const OSSL_PARAM *EVP_PKEY_CTX_settable_params(EVP_PKEY_CTX *ctx)
644{
864b89ce
MC		 645 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
646 && ctx->op.kex.exchange != NULL
647 && ctx->op.kex.exchange->settable_ctx_params != NULL)
648 return ctx->op.kex.exchange->settable_ctx_params();
649 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
650 && ctx->op.sig.signature != NULL
651 && ctx->op.sig.signature->settable_ctx_params != NULL)
652 return ctx->op.sig.signature->settable_ctx_params();
2c938e2e
MC		 653 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
654 && ctx->op.ciph.cipher != NULL
655 && ctx->op.ciph.cipher->settable_ctx_params != NULL)
656 return ctx->op.ciph.cipher->settable_ctx_params();
62924755
RL		 657 if (EVP_PKEY_CTX_IS_GEN_OP(ctx)
658 && ctx->keymgmt != NULL
659 && ctx->keymgmt->gen_settable_params != NULL)
660 return evp_keymgmt_gen_settable_params(ctx->keymgmt);
9c45222d
MC		 661
662 return NULL;
663}
664
4fe54d67
NT		 665/*
666 * Internal helpers for stricter EVP_PKEY_CTX_{set,get}_params().
667 *
668 * Return 1 on success, 0 or negative for errors.
669 *
670 * In particular they return -2 if any of the params is not supported.
671 *
672 * They are not available in FIPS_MODE as they depend on
673 * - EVP_PKEY_CTX_{get,set}_params()
674 * - EVP_PKEY_CTX_{gettable,settable}_params()
675 *
676 */
677int evp_pkey_ctx_set_params_strict(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
678{
679 const OSSL_PARAM *p;
680
681 if (ctx == NULL || params == NULL)
682 return 0;
683
684 for (p = params; p->key != NULL; p++) {
685 /* Check the ctx actually understands this parameter */
686 if (OSSL_PARAM_locate_const(EVP_PKEY_CTX_settable_params(ctx),
687 p->key) == NULL )
688 return -2;
689 }
690
691 return EVP_PKEY_CTX_set_params(ctx, params);
692}
693
694int evp_pkey_ctx_get_params_strict(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
695{
696 const OSSL_PARAM *p;
697
698 if (ctx == NULL || params == NULL)
699 return 0;
700
701 for (p = params; p->key != NULL; p++ ) {
702 /* Check the ctx actually understands this parameter */
703 if (OSSL_PARAM_locate_const(EVP_PKEY_CTX_gettable_params(ctx),
704 p->key) == NULL )
705 return -2;
706 }
707
708 return EVP_PKEY_CTX_get_params(ctx, params);
709}
710
e683582b 711# ifndef OPENSSL_NO_DH
35aca9ec
MC		 712int EVP_PKEY_CTX_set_dh_pad(EVP_PKEY_CTX *ctx, int pad)
713{
714 OSSL_PARAM dh_pad_params[2];
1c3ace68 715 unsigned int upad = pad;
35aca9ec 716
864b89ce
MC		 717 /* We use EVP_PKEY_CTX_ctrl return values */
718 if (ctx == NULL || !EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
719 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
720 return -2;
721 }
722
35aca9ec 723 /* TODO(3.0): Remove this eventually when no more legacy */
864b89ce 724 if (ctx->op.kex.exchprovctx == NULL)
35aca9ec
MC		 725 return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DH, EVP_PKEY_OP_DERIVE,
726 EVP_PKEY_CTRL_DH_PAD, pad, NULL);
727
1c3ace68 728 dh_pad_params[0] = OSSL_PARAM_construct_uint(OSSL_EXCHANGE_PARAM_PAD, &upad);
35aca9ec
MC		 729 dh_pad_params[1] = OSSL_PARAM_construct_end();
730
731 return EVP_PKEY_CTX_set_params(ctx, dh_pad_params);
732}
e683582b 733# endif
35aca9ec 734
9c45222d
MC		 735int EVP_PKEY_CTX_get_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD **md)
736{
737 OSSL_PARAM sig_md_params[3], *p = sig_md_params;
738 /* 80 should be big enough */
739 char name[80] = "";
740 const EVP_MD *tmp;
741
864b89ce 742 if (ctx == NULL || !EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
9c45222d
MC		 743 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
744 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
745 return -2;
746 }
747
748 /* TODO(3.0): Remove this eventually when no more legacy */
864b89ce 749 if (ctx->op.sig.sigprovctx == NULL)
9c45222d
MC		 750 return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG,
751 EVP_PKEY_CTRL_GET_MD, 0, (void *)(md));
752
753 *p++ = OSSL_PARAM_construct_utf8_string(OSSL_SIGNATURE_PARAM_DIGEST,
754 name,
755 sizeof(name));
756 *p++ = OSSL_PARAM_construct_end();
757
758 if (!EVP_PKEY_CTX_get_params(ctx, sig_md_params))
759 return 0;
760
7606bed9 761 tmp = evp_get_digestbyname_ex(ctx->libctx, name);
9c45222d
MC		 762 if (tmp == NULL)
763 return 0;
764
765 *md = tmp;
766
767 return 1;
768}
769
4889dadc
MC		 770int EVP_PKEY_CTX_set_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD *md)
771{
00bc1ad9 772 OSSL_PARAM sig_md_params[2], *p = sig_md_params;
4889dadc
MC		 773 const char *name;
774
864b89ce 775 if (ctx == NULL || !EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
9c45222d
MC		 776 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
777 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
778 return -2;
779 }
780
4889dadc 781 /* TODO(3.0): Remove this eventually when no more legacy */
864b89ce 782 if (ctx->op.sig.sigprovctx == NULL)
4889dadc
MC		 783 return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG,
784 EVP_PKEY_CTRL_MD, 0, (void *)(md));
785
9c45222d
MC		 786 if (md == NULL) {
787 name = "";
9c45222d 788 } else {
9c45222d
MC		 789 name = EVP_MD_name(md);
790 }
4889dadc 791
9c45222d
MC		 792 *p++ = OSSL_PARAM_construct_utf8_string(OSSL_SIGNATURE_PARAM_DIGEST,
793 /*
794 * Cast away the const. This is read
795 * only so should be safe
796 */
8b6ffd40 797 (char *)name, 0);
9c45222d 798 *p++ = OSSL_PARAM_construct_end();
4889dadc 799
9c45222d 800 return EVP_PKEY_CTX_set_params(ctx, sig_md_params);
4889dadc
MC		 801}
802
35aca9ec
MC		 803static int legacy_ctrl_to_param(EVP_PKEY_CTX *ctx, int keytype, int optype,
804 int cmd, int p1, void *p2)
805{
71434aed
DB		 806 /*
807 * GOST CMS format is different for different cipher algorithms.
808 * Most of other algorithms don't have such a difference
809 * so this ctrl is just ignored.
810 */
811 if (cmd == EVP_PKEY_CTRL_CIPHER)
812 return -2;
7165593c 813
e683582b 814# ifndef OPENSSL_NO_DH
4fe54d67
NT		 815 if (keytype == EVP_PKEY_DH) {
816 switch (cmd) {
817 case EVP_PKEY_CTRL_DH_PAD:
818 return EVP_PKEY_CTX_set_dh_pad(ctx, p1);
7165593c
SL		 819 case EVP_PKEY_CTRL_DH_PARAMGEN_PRIME_LEN:
820 return EVP_PKEY_CTX_set_dh_paramgen_prime_len(ctx, p1);
821 case EVP_PKEY_CTRL_DH_PARAMGEN_SUBPRIME_LEN:
822 return EVP_PKEY_CTX_set_dh_paramgen_subprime_len(ctx, p1);
823 case EVP_PKEY_CTRL_DH_PARAMGEN_GENERATOR:
824 return EVP_PKEY_CTX_set_dh_paramgen_generator(ctx, p1);
825 case EVP_PKEY_CTRL_DH_PARAMGEN_TYPE:
826 return EVP_PKEY_CTX_set_dh_paramgen_type(ctx, p1);
827 case EVP_PKEY_CTRL_DH_RFC5114:
828 return EVP_PKEY_CTX_set_dh_rfc5114(ctx, p1);
4fe54d67
NT		 829 }
830 }
831# endif
b03ec3b5
SL		 832# ifndef OPENSSL_NO_DSA
833 if (keytype == EVP_PKEY_DSA) {
834 switch (cmd) {
835 case EVP_PKEY_CTRL_DSA_PARAMGEN_BITS:
836 return EVP_PKEY_CTX_set_dsa_paramgen_bits(ctx, p1);
837 case EVP_PKEY_CTRL_DSA_PARAMGEN_Q_BITS:
838 return EVP_PKEY_CTX_set_dsa_paramgen_q_bits(ctx, p1);
839 case EVP_PKEY_CTRL_DSA_PARAMGEN_MD:
840 return EVP_PKEY_CTX_set_dsa_paramgen_md(ctx, p2);
841 }
842 }
843# endif
4fe54d67
NT		 844# ifndef OPENSSL_NO_EC
845 if (keytype == EVP_PKEY_EC) {
846 switch (cmd) {
10d756a7
RL		 847 case EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID:
848 return EVP_PKEY_CTX_set_ec_paramgen_curve_nid(ctx, p1);
6f4b7663
RL		 849 case EVP_PKEY_CTRL_EC_ECDH_COFACTOR:
850 if (p1 == -2) {
851 return EVP_PKEY_CTX_get_ecdh_cofactor_mode(ctx);
852 } else if (p1 < -1 || p1 > 1) {
853 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
854 return -2;
855 } else {
856 return EVP_PKEY_CTX_set_ecdh_cofactor_mode(ctx, p1);
857 }
858 case EVP_PKEY_CTRL_EC_KDF_TYPE:
859 if (p1 == -2) {
860 return EVP_PKEY_CTX_get_ecdh_kdf_type(ctx);
861 } else {
862 return EVP_PKEY_CTX_set_ecdh_kdf_type(ctx, p1);
863 }
864 case EVP_PKEY_CTRL_GET_EC_KDF_MD:
865 return EVP_PKEY_CTX_get_ecdh_kdf_md(ctx, p2);
866 case EVP_PKEY_CTRL_EC_KDF_MD:
867 return EVP_PKEY_CTX_set_ecdh_kdf_md(ctx, p2);
868 case EVP_PKEY_CTRL_GET_EC_KDF_OUTLEN:
869 return EVP_PKEY_CTX_get_ecdh_kdf_outlen(ctx, p2);
870 case EVP_PKEY_CTRL_EC_KDF_OUTLEN:
871 return EVP_PKEY_CTX_set_ecdh_kdf_outlen(ctx, p1);
872 case EVP_PKEY_CTRL_GET_EC_KDF_UKM:
873 return EVP_PKEY_CTX_get0_ecdh_kdf_ukm(ctx, p2);
874 case EVP_PKEY_CTRL_EC_KDF_UKM:
875 return EVP_PKEY_CTX_set0_ecdh_kdf_ukm(ctx, p2, p1);
4fe54d67
NT		 876 }
877 }
e683582b 878# endif
2decdad3
RL		 879 if (keytype == EVP_PKEY_RSA) {
880 switch (cmd) {
881 case EVP_PKEY_CTRL_RSA_OAEP_MD:
882 return EVP_PKEY_CTX_set_rsa_oaep_md(ctx, p2);
883 case EVP_PKEY_CTRL_GET_RSA_OAEP_MD:
884 return EVP_PKEY_CTX_get_rsa_oaep_md(ctx, p2);
885 case EVP_PKEY_CTRL_RSA_MGF1_MD:
886 return EVP_PKEY_CTX_set_rsa_oaep_md(ctx, p2);
887 case EVP_PKEY_CTRL_RSA_OAEP_LABEL:
888 return EVP_PKEY_CTX_set0_rsa_oaep_label(ctx, p2, p1);
889 case EVP_PKEY_CTRL_GET_RSA_OAEP_LABEL:
890 return EVP_PKEY_CTX_get0_rsa_oaep_label(ctx, (unsigned char **)p2);
891 case EVP_PKEY_CTRL_RSA_KEYGEN_BITS:
892 return EVP_PKEY_CTX_set_rsa_keygen_bits(ctx, p1);
893 case EVP_PKEY_CTRL_RSA_KEYGEN_PUBEXP:
894 return EVP_PKEY_CTX_set_rsa_keygen_pubexp(ctx, p2);
895 case EVP_PKEY_CTRL_RSA_KEYGEN_PRIMES:
896 return EVP_PKEY_CTX_set_rsa_keygen_primes(ctx, p1);
897 }
898 }
899 /*
900 * keytype == -1 is used when several key types share the same structure,
901 * or for generic controls that are the same across multiple key types.
902 */
4fe54d67
NT		 903 if (keytype == -1) {
904 switch (cmd) {
6f4b7663
RL		 905 case EVP_PKEY_CTRL_MD:
906 return EVP_PKEY_CTX_set_signature_md(ctx, p2);
907 case EVP_PKEY_CTRL_GET_MD:
908 return EVP_PKEY_CTX_get_signature_md(ctx, p2);
909 case EVP_PKEY_CTRL_RSA_PADDING:
910 return EVP_PKEY_CTX_set_rsa_padding(ctx, p1);
911 case EVP_PKEY_CTRL_GET_RSA_PADDING:
912 return EVP_PKEY_CTX_get_rsa_padding(ctx, p2);
6f4b7663
RL		 913 case EVP_PKEY_CTRL_GET_RSA_MGF1_MD:
914 return EVP_PKEY_CTX_get_rsa_oaep_md(ctx, p2);
6f4b7663
RL		 915 case EVP_PKEY_CTRL_RSA_PSS_SALTLEN:
916 return EVP_PKEY_CTX_set_rsa_pss_saltlen(ctx, p1);
917 case EVP_PKEY_CTRL_GET_RSA_PSS_SALTLEN:
918 return EVP_PKEY_CTX_get_rsa_pss_saltlen(ctx, p2);
919 case EVP_PKEY_CTRL_PKCS7_ENCRYPT:
920 case EVP_PKEY_CTRL_PKCS7_DECRYPT:
e683582b 921# ifndef OPENSSL_NO_CMS
6f4b7663
RL		 922 case EVP_PKEY_CTRL_CMS_DECRYPT:
923 case EVP_PKEY_CTRL_CMS_ENCRYPT:
e683582b 924# endif
cc572c25
RL		 925 /* TODO (3.0) Temporary hack, this should probe */
926 if (!EVP_PKEY_is_a(EVP_PKEY_CTX_get0_pkey(ctx), "RSASSA-PSS"))
6f4b7663
RL		 927 return 1;
928 ERR_raise(ERR_LIB_EVP,
929 EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
930 return -2;
4fe54d67 931 }
35aca9ec
MC		 932 }
933 return 0;
934}
935
0b6f3c66 936int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype,
0f113f3e
MC		 937 int cmd, int p1, void *p2)
938{
939 int ret;
4803717f 940
35aca9ec
MC		 941 if (ctx == NULL) {
942 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED);
943 return -2;
944 }
945
864b89ce 946 if ((EVP_PKEY_CTX_IS_DERIVE_OP(ctx) && ctx->op.kex.exchprovctx != NULL)
48bb9792 947 || (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
2c938e2e
MC		 948 && ctx->op.sig.sigprovctx != NULL)
949 || (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
62924755
RL		 950 && ctx->op.ciph.ciphprovctx != NULL)
951 || (EVP_PKEY_CTX_IS_GEN_OP(ctx)
952 && ctx->op.keymgmt.genctx != NULL))
35aca9ec
MC		 953 return legacy_ctrl_to_param(ctx, keytype, optype, cmd, p1, p2);
954
955 if (ctx->pmeth == NULL || ctx->pmeth->ctrl == NULL) {
0f113f3e
MC		 956 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED);
957 return -2;
958 }
959 if ((keytype != -1) && (ctx->pmeth->pkey_id != keytype))
960 return -1;
961
4803717f
PY		 962 /* Skip the operation checks since this is called in a very early stage */
963 if (ctx->pmeth->digest_custom != NULL)
964 goto doit;
965
0f113f3e
MC		 966 if (ctx->operation == EVP_PKEY_OP_UNDEFINED) {
967 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_NO_OPERATION_SET);
968 return -1;
969 }
970
971 if ((optype != -1) && !(ctx->operation & optype)) {
972 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_INVALID_OPERATION);
973 return -1;
974 }
975
4803717f 976 doit:
0f113f3e
MC		 977 ret = ctx->pmeth->ctrl(ctx, cmd, p1, p2);
978
979 if (ret == -2)
980 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED);
981
982 return ret;
0f113f3e 983}
0b6f3c66 984
cefa762e 985int EVP_PKEY_CTX_ctrl_uint64(EVP_PKEY_CTX *ctx, int keytype, int optype,
64bf1016 986 int cmd, uint64_t value)
cefa762e
JB		 987{
988 return EVP_PKEY_CTX_ctrl(ctx, keytype, optype, cmd, 0, &value);
989}
990
35aca9ec
MC		 991static int legacy_ctrl_str_to_param(EVP_PKEY_CTX *ctx, const char *name,
992 const char *value)
993{
10d756a7
RL		 994
995 /* Special cases that we intercept */
996# ifndef OPENSSL_NO_EC
997 /*
998 * We don't support encoding settings for providers, i.e. the only
999 * possible encoding is "named_curve", so we simply fail when something
1000 * else is given, and otherwise just pretend all is fine.
1001 */
1002 if (strcmp(name, "ec_param_enc") == 0) {
1003 if (strcmp(value, "named_curve") == 0) {
1004 return 1;
1005 } else {
1006 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1007 return -2;
1008 }
1009 }
1010# endif
1011
972fa318
RL		 1012 if (strcmp(name, "rsa_padding_mode") == 0)
1013 name = OSSL_ASYM_CIPHER_PARAM_PAD_MODE;
1014 else if (strcmp(name, "rsa_mgf1_md") == 0)
1015 name = OSSL_ASYM_CIPHER_PARAM_MGF1_DIGEST;
1016 else if (strcmp(name, "rsa_oaep_md") == 0)
1017 name = OSSL_ASYM_CIPHER_PARAM_OAEP_DIGEST;
1018 else if (strcmp(name, "rsa_oaep_label") == 0)
1019 name = OSSL_ASYM_CIPHER_PARAM_OAEP_LABEL;
6f4b7663
RL		 1020 else if (strcmp(name, "rsa_pss_saltlen") == 0)
1021 name = OSSL_SIGNATURE_PARAM_PSS_SALTLEN;
2972af10
RL		 1022 else if (strcmp(name, "rsa_keygen_bits") == 0)
1023 name = OSSL_PKEY_PARAM_RSA_BITS;
1024 else if (strcmp(name, "rsa_keygen_pubexp") == 0)
1025 name = OSSL_PKEY_PARAM_RSA_E;
1026 else if (strcmp(name, "rsa_keygen_primes") == 0)
1027 name = OSSL_PKEY_PARAM_RSA_PRIMES;
b03ec3b5
SL		 1028# ifndef OPENSSL_NO_DSA
1029 else if (strcmp(name, "dsa_paramgen_bits") == 0)
1030 name = OSSL_PKEY_PARAM_FFC_PBITS;
1031 else if (strcmp(name, "dsa_paramgen_q_bits") == 0)
1032 name = OSSL_PKEY_PARAM_FFC_QBITS;
1033 else if (strcmp(name, "dsa_paramgen_md") == 0)
1034 name = OSSL_PKEY_PARAM_FFC_DIGEST;
1035# endif
e683582b 1036# ifndef OPENSSL_NO_DH
7165593c
SL		 1037 else if (strcmp(name, "dh_paramgen_generator") == 0)
1038 name = OSSL_PKEY_PARAM_FFC_GENERATOR;
1039 else if (strcmp(name, "dh_paramgen_prime_len") == 0)
1040 name = OSSL_PKEY_PARAM_FFC_PBITS;
1041 else if (strcmp(name, "dh_paramgen_subprime_len") == 0)
1042 name = OSSL_PKEY_PARAM_FFC_QBITS;
1043 else if (strcmp(name, "dh_paramgen_type") == 0) {
1044 name = OSSL_PKEY_PARAM_FFC_TYPE;
1045 value = dh_gen_type_id2name(atoi(value));
1046 } else if (strcmp(name, "dh_param") == 0)
1047 name = OSSL_PKEY_PARAM_FFC_GROUP;
1048 else if (strcmp(name, "dh_rfc5114") == 0) {
1049 name = OSSL_PKEY_PARAM_FFC_GROUP;
1050 value = ffc_named_group_from_uid(atoi(value));
1051 } else if (strcmp(name, "dh_pad") == 0)
972fa318 1052 name = OSSL_EXCHANGE_PARAM_PAD;
e683582b 1053# endif
4fe54d67 1054# ifndef OPENSSL_NO_EC
10d756a7
RL		 1055 else if (strcmp(name, "ec_paramgen_curve") == 0)
1056 name = OSSL_PKEY_PARAM_EC_NAME;
4fe54d67
NT		 1057 else if (strcmp(name, "ecdh_cofactor_mode") == 0)
1058 name = OSSL_EXCHANGE_PARAM_EC_ECDH_COFACTOR_MODE;
1059 else if (strcmp(name, "ecdh_kdf_md") == 0)
f552d900 1060 name = OSSL_EXCHANGE_PARAM_KDF_DIGEST;
4fe54d67 1061# endif
89abd1b6 1062
972fa318
RL		 1063 {
1064 /*
1065 * TODO(3.0) reduce the code above to only translate known legacy
1066 * string to the corresponding core name (see core_names.h), but
1067 * otherwise leave it to this code block to do the actual work.
1068 */
1069 const OSSL_PARAM *settable = EVP_PKEY_CTX_settable_params(ctx);
1070 OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
1071 int rv = 0;
292c8bdc 1072 int exists = 0;
89abd1b6 1073
972fa318 1074 if (!OSSL_PARAM_allocate_from_text(&params[0], settable, name, value,
292c8bdc
P		 1075 strlen(value), &exists)) {
1076 if (!exists) {
1077 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1078 return -2;
1079 }
89abd1b6 1080 return 0;
292c8bdc 1081 }
972fa318
RL		 1082 if (EVP_PKEY_CTX_set_params(ctx, params))
1083 rv = 1;
1084 OPENSSL_free(params[0].data);
1085 return rv;
89abd1b6 1086 }
35aca9ec
MC		 1087}
1088
4a3dc3c0 1089int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX *ctx,
0f113f3e
MC		 1090 const char *name, const char *value)
1091{
35aca9ec
MC		 1092 if (ctx == NULL) {
1093 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR, EVP_R_COMMAND_NOT_SUPPORTED);
1094 return -2;
1095 }
1096
864b89ce
MC		 1097 if ((EVP_PKEY_CTX_IS_DERIVE_OP(ctx) && ctx->op.kex.exchprovctx != NULL)
1098 || (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
2c938e2e
MC		 1099 && ctx->op.sig.sigprovctx != NULL)
1100 || (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
62924755
RL		 1101 && ctx->op.ciph.ciphprovctx != NULL)
1102 || (EVP_PKEY_CTX_IS_GEN_OP(ctx)
1103 && ctx->op.keymgmt.genctx != NULL))
35aca9ec
MC		 1104 return legacy_ctrl_str_to_param(ctx, name, value);
1105
0f113f3e
MC		 1106 if (!ctx || !ctx->pmeth || !ctx->pmeth->ctrl_str) {
1107 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR, EVP_R_COMMAND_NOT_SUPPORTED);
1108 return -2;
1109 }
410877ba
DSH		 1110 if (strcmp(name, "digest") == 0)
1111 return EVP_PKEY_CTX_md(ctx, EVP_PKEY_OP_TYPE_SIG, EVP_PKEY_CTRL_MD,
1112 value);
0f113f3e
MC		 1113 return ctx->pmeth->ctrl_str(ctx, name, value);
1114}
f5cda4cb 1115
99119000
DSH		 1116/* Utility functions to send a string of hex string to a ctrl */
1117
1118int EVP_PKEY_CTX_str2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *str)
1119{
1120 size_t len;
1121
1122 len = strlen(str);
1123 if (len > INT_MAX)
1124 return -1;
1125 return ctx->pmeth->ctrl(ctx, cmd, len, (void *)str);
1126}
1127
1128int EVP_PKEY_CTX_hex2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *hex)
1129{
1130 unsigned char *bin;
1131 long binlen;
1132 int rv = -1;
1133
14f051a0 1134 bin = OPENSSL_hexstr2buf(hex, &binlen);
99119000
DSH		 1135 if (bin == NULL)
1136 return 0;
1137 if (binlen <= INT_MAX)
1138 rv = ctx->pmeth->ctrl(ctx, cmd, binlen, bin);
1139 OPENSSL_free(bin);
1140 return rv;
1141}
52ad523c 1142
410877ba
DSH		 1143/* Pass a message digest to a ctrl */
1144int EVP_PKEY_CTX_md(EVP_PKEY_CTX *ctx, int optype, int cmd, const char *md)
1145{
1146 const EVP_MD *m;
c82bafc5 1147
410877ba
DSH		 1148 if (md == NULL || (m = EVP_get_digestbyname(md)) == NULL) {
1149 EVPerr(EVP_F_EVP_PKEY_CTX_MD, EVP_R_INVALID_DIGEST);
1150 return 0;
1151 }
1152 return EVP_PKEY_CTX_ctrl(ctx, -1, optype, cmd, 0, (void *)m);
1153}
99119000 1154
b28dea4e 1155int EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 1156{
1157 return ctx->operation;
1158}
b28dea4e
DSH		 1159
1160void EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX *ctx, int *dat, int datlen)
0f113f3e
MC		 1161{
1162 ctx->keygen_info = dat;
1163 ctx->keygen_info_count = datlen;
1164}
b28dea4e 1165
f5cda4cb 1166void EVP_PKEY_CTX_set_data(EVP_PKEY_CTX *ctx, void *data)
0f113f3e
MC		 1167{
1168 ctx->data = data;
1169}
f5cda4cb 1170
9fdcc21f 1171void *EVP_PKEY_CTX_get_data(const EVP_PKEY_CTX *ctx)
0f113f3e
MC		 1172{
1173 return ctx->data;
1174}
f5cda4cb 1175
81cebb8b 1176EVP_PKEY *EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 1177{
1178 return ctx->pkey;
1179}
81cebb8b 1180
0e1dba93 1181EVP_PKEY *EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 1182{
1183 return ctx->peerkey;
1184}
1185
f5cda4cb 1186void EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX *ctx, void *data)
0f113f3e
MC		 1187{
1188 ctx->app_data = data;
1189}
f5cda4cb
DSH		 1190
1191void *EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 1192{
1193 return ctx->app_data;
1194}
ba30bad5
DSH		 1195
1196void EVP_PKEY_meth_set_init(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1197 int (*init) (EVP_PKEY_CTX *ctx))
1198{
1199 pmeth->init = init;
1200}
8bdcef40
DSH		 1201
1202void EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD *pmeth,
0f113f3e 1203 int (*copy) (EVP_PKEY_CTX *dst,
9fdcc21f 1204 const EVP_PKEY_CTX *src))
0f113f3e
MC		 1205{
1206 pmeth->copy = copy;
1207}
ba30bad5
DSH		 1208
1209void EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1210 void (*cleanup) (EVP_PKEY_CTX *ctx))
1211{
1212 pmeth->cleanup = cleanup;
1213}
ba30bad5
DSH		 1214
1215void EVP_PKEY_meth_set_paramgen(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1216 int (*paramgen_init) (EVP_PKEY_CTX *ctx),
1217 int (*paramgen) (EVP_PKEY_CTX *ctx,
1218 EVP_PKEY *pkey))
1219{
1220 pmeth->paramgen_init = paramgen_init;
1221 pmeth->paramgen = paramgen;
1222}
ba30bad5
DSH		 1223
1224void EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1225 int (*keygen_init) (EVP_PKEY_CTX *ctx),
1226 int (*keygen) (EVP_PKEY_CTX *ctx,
1227 EVP_PKEY *pkey))
1228{
1229 pmeth->keygen_init = keygen_init;
1230 pmeth->keygen = keygen;
1231}
ba30bad5
DSH		 1232
1233void EVP_PKEY_meth_set_sign(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1234 int (*sign_init) (EVP_PKEY_CTX *ctx),
1235 int (*sign) (EVP_PKEY_CTX *ctx,
1236 unsigned char *sig, size_t *siglen,
1237 const unsigned char *tbs,
1238 size_t tbslen))
1239{
1240 pmeth->sign_init = sign_init;
1241 pmeth->sign = sign;
1242}
ba30bad5
DSH		 1243
1244void EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1245 int (*verify_init) (EVP_PKEY_CTX *ctx),
1246 int (*verify) (EVP_PKEY_CTX *ctx,
1247 const unsigned char *sig,
1248 size_t siglen,
1249 const unsigned char *tbs,
1250 size_t tbslen))
1251{
1252 pmeth->verify_init = verify_init;
1253 pmeth->verify = verify;
1254}
ba30bad5
DSH		 1255
1256void EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1257 int (*verify_recover_init) (EVP_PKEY_CTX
1258 *ctx),
1259 int (*verify_recover) (EVP_PKEY_CTX
1260 *ctx,
1261 unsigned char
1262 *sig,
1263 size_t *siglen,
1264 const unsigned
1265 char *tbs,
1266 size_t tbslen))
1267{
1268 pmeth->verify_recover_init = verify_recover_init;
1269 pmeth->verify_recover = verify_recover;
1270}
ba30bad5
DSH		 1271
1272void EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1273 int (*signctx_init) (EVP_PKEY_CTX *ctx,
1274 EVP_MD_CTX *mctx),
1275 int (*signctx) (EVP_PKEY_CTX *ctx,
1276 unsigned char *sig,
1277 size_t *siglen,
1278 EVP_MD_CTX *mctx))
1279{
1280 pmeth->signctx_init = signctx_init;
1281 pmeth->signctx = signctx;
1282}
ba30bad5
DSH		 1283
1284void EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1285 int (*verifyctx_init) (EVP_PKEY_CTX *ctx,
1286 EVP_MD_CTX *mctx),
1287 int (*verifyctx) (EVP_PKEY_CTX *ctx,
1288 const unsigned char *sig,
1289 int siglen,
1290 EVP_MD_CTX *mctx))
1291{
1292 pmeth->verifyctx_init = verifyctx_init;
1293 pmeth->verifyctx = verifyctx;
1294}
ba30bad5
DSH		 1295
1296void EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1297 int (*encrypt_init) (EVP_PKEY_CTX *ctx),
1298 int (*encryptfn) (EVP_PKEY_CTX *ctx,
1299 unsigned char *out,
1300 size_t *outlen,
1301 const unsigned char *in,
1302 size_t inlen))
1303{
1304 pmeth->encrypt_init = encrypt_init;
1305 pmeth->encrypt = encryptfn;
1306}
ba30bad5
DSH		 1307
1308void EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1309 int (*decrypt_init) (EVP_PKEY_CTX *ctx),
1310 int (*decrypt) (EVP_PKEY_CTX *ctx,
1311 unsigned char *out,
1312 size_t *outlen,
1313 const unsigned char *in,
1314 size_t inlen))
1315{
1316 pmeth->decrypt_init = decrypt_init;
1317 pmeth->decrypt = decrypt;
1318}
ba30bad5
DSH		 1319
1320void EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1321 int (*derive_init) (EVP_PKEY_CTX *ctx),
1322 int (*derive) (EVP_PKEY_CTX *ctx,
1323 unsigned char *key,
1324 size_t *keylen))
1325{
1326 pmeth->derive_init = derive_init;
1327 pmeth->derive = derive;
1328}
ba30bad5
DSH		 1329
1330void EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1331 int (*ctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
1332 void *p2),
1333 int (*ctrl_str) (EVP_PKEY_CTX *ctx,
1334 const char *type,
1335 const char *value))
1336{
1337 pmeth->ctrl = ctrl;
1338 pmeth->ctrl_str = ctrl_str;
1339}
e7451ed1 1340
2555285f
AH		 1341void EVP_PKEY_meth_set_digestsign(EVP_PKEY_METHOD *pmeth,
1342 int (*digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen,
1343 const unsigned char *tbs, size_t tbslen))
1344{
1345 pmeth->digestsign = digestsign;
1346}
1347
1348void EVP_PKEY_meth_set_digestverify(EVP_PKEY_METHOD *pmeth,
1349 int (*digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig,
1350 size_t siglen, const unsigned char *tbs,
1351 size_t tbslen))
1352{
1353 pmeth->digestverify = digestverify;
1354}
1355
2aee35d3
PY		 1356void EVP_PKEY_meth_set_check(EVP_PKEY_METHOD *pmeth,
1357 int (*check) (EVP_PKEY *pkey))
1358{
1359 pmeth->check = check;
1360}
1361
b0004708
PY		 1362void EVP_PKEY_meth_set_public_check(EVP_PKEY_METHOD *pmeth,
1363 int (*check) (EVP_PKEY *pkey))
1364{
1365 pmeth->public_check = check;
1366}
1367
1368void EVP_PKEY_meth_set_param_check(EVP_PKEY_METHOD *pmeth,
1369 int (*check) (EVP_PKEY *pkey))
1370{
1371 pmeth->param_check = check;
1372}
1373
0a8fdef7
PY		 1374void EVP_PKEY_meth_set_digest_custom(EVP_PKEY_METHOD *pmeth,
1375 int (*digest_custom) (EVP_PKEY_CTX *ctx,
1376 EVP_MD_CTX *mctx))
1377{
1378 pmeth->digest_custom = digest_custom;
1379}
1380
693be9a2 1381void EVP_PKEY_meth_get_init(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1382 int (**pinit) (EVP_PKEY_CTX *ctx))
1383{
1384 *pinit = pmeth->init;
1385}
1386
693be9a2 1387void EVP_PKEY_meth_get_copy(const EVP_PKEY_METHOD *pmeth,
e7451ed1 1388 int (**pcopy) (EVP_PKEY_CTX *dst,
9fdcc21f 1389 const EVP_PKEY_CTX *src))
e7451ed1
DSH		 1390{
1391 *pcopy = pmeth->copy;
1392}
1393
693be9a2 1394void EVP_PKEY_meth_get_cleanup(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1395 void (**pcleanup) (EVP_PKEY_CTX *ctx))
1396{
1397 *pcleanup = pmeth->cleanup;
1398}
1399
693be9a2 1400void EVP_PKEY_meth_get_paramgen(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1401 int (**pparamgen_init) (EVP_PKEY_CTX *ctx),
1402 int (**pparamgen) (EVP_PKEY_CTX *ctx,
1403 EVP_PKEY *pkey))
1404{
1405 if (pparamgen_init)
1406 *pparamgen_init = pmeth->paramgen_init;
1407 if (pparamgen)
1408 *pparamgen = pmeth->paramgen;
1409}
1410
693be9a2 1411void EVP_PKEY_meth_get_keygen(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1412 int (**pkeygen_init) (EVP_PKEY_CTX *ctx),
1413 int (**pkeygen) (EVP_PKEY_CTX *ctx,
1414 EVP_PKEY *pkey))
1415{
1416 if (pkeygen_init)
1417 *pkeygen_init = pmeth->keygen_init;
1418 if (pkeygen)
1419 *pkeygen = pmeth->keygen;
1420}
1421
693be9a2 1422void EVP_PKEY_meth_get_sign(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1423 int (**psign_init) (EVP_PKEY_CTX *ctx),
1424 int (**psign) (EVP_PKEY_CTX *ctx,
1425 unsigned char *sig, size_t *siglen,
1426 const unsigned char *tbs,
1427 size_t tbslen))
1428{
1429 if (psign_init)
1430 *psign_init = pmeth->sign_init;
1431 if (psign)
1432 *psign = pmeth->sign;
1433}
1434
693be9a2 1435void EVP_PKEY_meth_get_verify(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1436 int (**pverify_init) (EVP_PKEY_CTX *ctx),
1437 int (**pverify) (EVP_PKEY_CTX *ctx,
1438 const unsigned char *sig,
1439 size_t siglen,
1440 const unsigned char *tbs,
1441 size_t tbslen))
1442{
1443 if (pverify_init)
1444 *pverify_init = pmeth->verify_init;
1445 if (pverify)
1446 *pverify = pmeth->verify;
1447}
1448
693be9a2 1449void EVP_PKEY_meth_get_verify_recover(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1450 int (**pverify_recover_init) (EVP_PKEY_CTX
1451 *ctx),
1452 int (**pverify_recover) (EVP_PKEY_CTX
1453 *ctx,
1454 unsigned char
1455 *sig,
1456 size_t *siglen,
1457 const unsigned
1458 char *tbs,
1459 size_t tbslen))
1460{
1461 if (pverify_recover_init)
1462 *pverify_recover_init = pmeth->verify_recover_init;
1463 if (pverify_recover)
1464 *pverify_recover = pmeth->verify_recover;
1465}
1466
693be9a2 1467void EVP_PKEY_meth_get_signctx(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1468 int (**psignctx_init) (EVP_PKEY_CTX *ctx,
1469 EVP_MD_CTX *mctx),
1470 int (**psignctx) (EVP_PKEY_CTX *ctx,
1471 unsigned char *sig,
1472 size_t *siglen,
1473 EVP_MD_CTX *mctx))
1474{
1475 if (psignctx_init)
1476 *psignctx_init = pmeth->signctx_init;
1477 if (psignctx)
1478 *psignctx = pmeth->signctx;
1479}
1480
693be9a2 1481void EVP_PKEY_meth_get_verifyctx(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1482 int (**pverifyctx_init) (EVP_PKEY_CTX *ctx,
1483 EVP_MD_CTX *mctx),
1484 int (**pverifyctx) (EVP_PKEY_CTX *ctx,
1485 const unsigned char *sig,
1486 int siglen,
1487 EVP_MD_CTX *mctx))
1488{
1489 if (pverifyctx_init)
1490 *pverifyctx_init = pmeth->verifyctx_init;
1491 if (pverifyctx)
1492 *pverifyctx = pmeth->verifyctx;
1493}
1494
693be9a2 1495void EVP_PKEY_meth_get_encrypt(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1496 int (**pencrypt_init) (EVP_PKEY_CTX *ctx),
1497 int (**pencryptfn) (EVP_PKEY_CTX *ctx,
1498 unsigned char *out,
1499 size_t *outlen,
1500 const unsigned char *in,
1501 size_t inlen))
1502{
1503 if (pencrypt_init)
1504 *pencrypt_init = pmeth->encrypt_init;
1505 if (pencryptfn)
1506 *pencryptfn = pmeth->encrypt;
1507}
1508
693be9a2 1509void EVP_PKEY_meth_get_decrypt(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1510 int (**pdecrypt_init) (EVP_PKEY_CTX *ctx),
1511 int (**pdecrypt) (EVP_PKEY_CTX *ctx,
1512 unsigned char *out,
1513 size_t *outlen,
1514 const unsigned char *in,
1515 size_t inlen))
1516{
1517 if (pdecrypt_init)
1518 *pdecrypt_init = pmeth->decrypt_init;
1519 if (pdecrypt)
1520 *pdecrypt = pmeth->decrypt;
1521}
1522
693be9a2 1523void EVP_PKEY_meth_get_derive(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1524 int (**pderive_init) (EVP_PKEY_CTX *ctx),
1525 int (**pderive) (EVP_PKEY_CTX *ctx,
1526 unsigned char *key,
1527 size_t *keylen))
1528{
1529 if (pderive_init)
1530 *pderive_init = pmeth->derive_init;
1531 if (pderive)
1532 *pderive = pmeth->derive;
1533}
1534
693be9a2 1535void EVP_PKEY_meth_get_ctrl(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1536 int (**pctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
1537 void *p2),
1538 int (**pctrl_str) (EVP_PKEY_CTX *ctx,
1539 const char *type,
1540 const char *value))
1541{
1542 if (pctrl)
1543 *pctrl = pmeth->ctrl;
1544 if (pctrl_str)
1545 *pctrl_str = pmeth->ctrl_str;
1546}
2aee35d3 1547
2555285f
AH		 1548void EVP_PKEY_meth_get_digestsign(EVP_PKEY_METHOD *pmeth,
1549 int (**digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen,
1550 const unsigned char *tbs, size_t tbslen))
1551{
1552 if (digestsign)
1553 *digestsign = pmeth->digestsign;
1554}
1555
1556void EVP_PKEY_meth_get_digestverify(EVP_PKEY_METHOD *pmeth,
1557 int (**digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig,
1558 size_t siglen, const unsigned char *tbs,
1559 size_t tbslen))
1560{
1561 if (digestverify)
1562 *digestverify = pmeth->digestverify;
1563}
1564
693be9a2 1565void EVP_PKEY_meth_get_check(const EVP_PKEY_METHOD *pmeth,
2aee35d3
PY		 1566 int (**pcheck) (EVP_PKEY *pkey))
1567{
34f5c8b1 1568 if (pcheck != NULL)
2aee35d3
PY		 1569 *pcheck = pmeth->check;
1570}
b0004708 1571
693be9a2 1572void EVP_PKEY_meth_get_public_check(const EVP_PKEY_METHOD *pmeth,
b0004708
PY		 1573 int (**pcheck) (EVP_PKEY *pkey))
1574{
34f5c8b1 1575 if (pcheck != NULL)
b0004708
PY		 1576 *pcheck = pmeth->public_check;
1577}
1578
693be9a2 1579void EVP_PKEY_meth_get_param_check(const EVP_PKEY_METHOD *pmeth,
b0004708
PY		 1580 int (**pcheck) (EVP_PKEY *pkey))
1581{
34f5c8b1 1582 if (pcheck != NULL)
b0004708
PY		 1583 *pcheck = pmeth->param_check;
1584}
0a8fdef7
PY		 1585
1586void EVP_PKEY_meth_get_digest_custom(EVP_PKEY_METHOD *pmeth,
1587 int (**pdigest_custom) (EVP_PKEY_CTX *ctx,
1588 EVP_MD_CTX *mctx))
1589{
675f4cee 1590 if (pdigest_custom != NULL)
0a8fdef7
PY		 1591 *pdigest_custom = pmeth->digest_custom;
1592}
e683582b
SL		 1593
1594#endif /* FIPS_MODE */
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