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[thirdparty/openssl.git] / crypto / evp / pmeth_lib.c
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0f113f3e 1/*
33388b44 2 * Copyright 2006-2020 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) {
b5bcc053 239 EVP_KEYMGMT_free(keymgmt);
e683582b 240#if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODE)
7c96dbcd 241 ENGINE_finish(e);
a63bf2c5 242#endif
0f113f3e
MC		 243 EVPerr(EVP_F_INT_CTX_NEW, ERR_R_MALLOC_FAILURE);
244 return NULL;
245 }
3ee348b0 246 ret->libctx = libctx;
a07c17ef 247 ret->propquery = propquery;
4b9e90f4
RL		 248 ret->keytype = keytype;
249 ret->keymgmt = keymgmt;
0f113f3e
MC		 250 ret->engine = e;
251 ret->pmeth = pmeth;
252 ret->operation = EVP_PKEY_OP_UNDEFINED;
253 ret->pkey = pkey;
a6465b3f 254 if (pkey != NULL)
03273d61 255 EVP_PKEY_up_ref(pkey);
0f113f3e 256
8b84b075 257 if (pmeth != NULL && pmeth->init != NULL) {
0f113f3e 258 if (pmeth->init(ret) <= 0) {
83b4049a 259 ret->pmeth = NULL;
0f113f3e
MC		 260 EVP_PKEY_CTX_free(ret);
261 return NULL;
262 }
263 }
264
265 return ret;
266}
267
e683582b
SL		 268/*- All methods below can also be used in FIPS_MODE */
269
270EVP_PKEY_CTX *EVP_PKEY_CTX_new_from_name(OPENSSL_CTX *libctx,
271 const char *name,
272 const char *propquery)
273{
274 return int_ctx_new(libctx, NULL, NULL, name, propquery, -1);
275}
276
2ee4a50a
MC		 277EVP_PKEY_CTX *EVP_PKEY_CTX_new_from_pkey(OPENSSL_CTX *libctx, EVP_PKEY *pkey,
278 const char *propquery)
e683582b 279{
2ee4a50a 280 return int_ctx_new(libctx, pkey, NULL, NULL, propquery, -1);
e683582b
SL		 281}
282
864b89ce
MC		 283void evp_pkey_ctx_free_old_ops(EVP_PKEY_CTX *ctx)
284{
e683582b 285 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
864b89ce
MC		 286 if (ctx->op.sig.sigprovctx != NULL && ctx->op.sig.signature != NULL)
287 ctx->op.sig.signature->freectx(ctx->op.sig.sigprovctx);
288 EVP_SIGNATURE_free(ctx->op.sig.signature);
fb1ecf85
RL		 289 ctx->op.sig.sigprovctx = NULL;
290 ctx->op.sig.signature = NULL;
62f49b90 291 } else if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
e683582b
SL		 292 if (ctx->op.kex.exchprovctx != NULL && ctx->op.kex.exchange != NULL)
293 ctx->op.kex.exchange->freectx(ctx->op.kex.exchprovctx);
294 EVP_KEYEXCH_free(ctx->op.kex.exchange);
295 ctx->op.kex.exchprovctx = NULL;
296 ctx->op.kex.exchange = NULL;
62f49b90
SL		 297 }
298/* TODO(3.0): add dependancies and uncomment this when available for fips mode */
299#ifndef FIPS_MODE
300 else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)) {
2c938e2e
MC		 301 if (ctx->op.ciph.ciphprovctx != NULL && ctx->op.ciph.cipher != NULL)
302 ctx->op.ciph.cipher->freectx(ctx->op.ciph.ciphprovctx);
303 EVP_ASYM_CIPHER_free(ctx->op.ciph.cipher);
304 ctx->op.ciph.ciphprovctx = NULL;
305 ctx->op.ciph.cipher = NULL;
62924755
RL		 306 } else if (EVP_PKEY_CTX_IS_GEN_OP(ctx)) {
307 if (ctx->op.keymgmt.genctx != NULL && ctx->keymgmt != NULL)
308 evp_keymgmt_gen_cleanup(ctx->keymgmt, ctx->op.keymgmt.genctx);
864b89ce 309 }
e683582b 310#endif
864b89ce
MC		 311}
312
e683582b 313void EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx)
0f113f3e 314{
e683582b
SL		 315 if (ctx == NULL)
316 return;
317 if (ctx->pmeth && ctx->pmeth->cleanup)
318 ctx->pmeth->cleanup(ctx);
b4faea50 319
e683582b
SL		 320 evp_pkey_ctx_free_old_ops(ctx);
321 EVP_KEYMGMT_free(ctx->keymgmt);
0f113f3e 322
e683582b
SL		 323 EVP_PKEY_free(ctx->pkey);
324 EVP_PKEY_free(ctx->peerkey);
325#if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODE)
326 ENGINE_finish(ctx->engine);
327#endif
328 OPENSSL_free(ctx);
0f113f3e 329}
ba30bad5 330
e683582b
SL		 331#ifndef FIPS_MODE
332
f830c68f 333void EVP_PKEY_meth_get0_info(int *ppkey_id, int *pflags,
0f113f3e
MC		 334 const EVP_PKEY_METHOD *meth)
335{
336 if (ppkey_id)
337 *ppkey_id = meth->pkey_id;
338 if (pflags)
339 *pflags = meth->flags;
340}
f830c68f
DSH		 341
342void EVP_PKEY_meth_copy(EVP_PKEY_METHOD *dst, const EVP_PKEY_METHOD *src)
0f113f3e 343{
f830c68f 344
0f113f3e
MC		 345 dst->init = src->init;
346 dst->copy = src->copy;
347 dst->cleanup = src->cleanup;
f830c68f 348
0f113f3e
MC		 349 dst->paramgen_init = src->paramgen_init;
350 dst->paramgen = src->paramgen;
f830c68f 351
0f113f3e
MC		 352 dst->keygen_init = src->keygen_init;
353 dst->keygen = src->keygen;
f830c68f 354
0f113f3e
MC		 355 dst->sign_init = src->sign_init;
356 dst->sign = src->sign;
f830c68f 357
0f113f3e
MC		 358 dst->verify_init = src->verify_init;
359 dst->verify = src->verify;
f830c68f 360
0f113f3e
MC		 361 dst->verify_recover_init = src->verify_recover_init;
362 dst->verify_recover = src->verify_recover;
f830c68f 363
0f113f3e
MC		 364 dst->signctx_init = src->signctx_init;
365 dst->signctx = src->signctx;
f830c68f 366
0f113f3e
MC		 367 dst->verifyctx_init = src->verifyctx_init;
368 dst->verifyctx = src->verifyctx;
f830c68f 369
0f113f3e
MC		 370 dst->encrypt_init = src->encrypt_init;
371 dst->encrypt = src->encrypt;
f830c68f 372
0f113f3e
MC		 373 dst->decrypt_init = src->decrypt_init;
374 dst->decrypt = src->decrypt;
f830c68f 375
0f113f3e
MC		 376 dst->derive_init = src->derive_init;
377 dst->derive = src->derive;
f830c68f 378
0f113f3e
MC		 379 dst->ctrl = src->ctrl;
380 dst->ctrl_str = src->ctrl_str;
2aee35d3
PY		 381
382 dst->check = src->check;
0f113f3e 383}
f830c68f 384
ba30bad5 385void EVP_PKEY_meth_free(EVP_PKEY_METHOD *pmeth)
0f113f3e
MC		 386{
387 if (pmeth && (pmeth->flags & EVP_PKEY_FLAG_DYNAMIC))
388 OPENSSL_free(pmeth);
389}
ba30bad5 390
f5cda4cb 391EVP_PKEY_CTX *EVP_PKEY_CTX_new(EVP_PKEY *pkey, ENGINE *e)
0f113f3e 392{
3ee348b0 393 return int_ctx_new(NULL, pkey, e, NULL, NULL, -1);
0f113f3e 394}
f5cda4cb
DSH		 395
396EVP_PKEY_CTX *EVP_PKEY_CTX_new_id(int id, ENGINE *e)
0f113f3e 397{
3ee348b0 398 return int_ctx_new(NULL, NULL, e, NULL, NULL, id);
a07c17ef
RL		 399}
400
9fdcc21f 401EVP_PKEY_CTX *EVP_PKEY_CTX_dup(const EVP_PKEY_CTX *pctx)
0f113f3e
MC		 402{
403 EVP_PKEY_CTX *rctx;
ff64702b
MC		 404
405 if (((pctx->pmeth == NULL) || (pctx->pmeth->copy == NULL))
864b89ce
MC		 406 && ((EVP_PKEY_CTX_IS_DERIVE_OP(pctx)
407 && pctx->op.kex.exchprovctx == NULL)
408 || (EVP_PKEY_CTX_IS_SIGNATURE_OP(pctx)
409 && pctx->op.sig.sigprovctx == NULL)))
0f113f3e 410 return NULL;
e683582b 411# ifndef OPENSSL_NO_ENGINE
0f113f3e
MC		 412 /* Make sure it's safe to copy a pkey context using an ENGINE */
413 if (pctx->engine && !ENGINE_init(pctx->engine)) {
414 EVPerr(EVP_F_EVP_PKEY_CTX_DUP, ERR_R_ENGINE_LIB);
415 return 0;
416 }
e683582b 417# endif
ff64702b 418 rctx = OPENSSL_zalloc(sizeof(*rctx));
3484236d
F		 419 if (rctx == NULL) {
420 EVPerr(EVP_F_EVP_PKEY_CTX_DUP, ERR_R_MALLOC_FAILURE);
0f113f3e 421 return NULL;
3484236d 422 }
8bdcef40 423
ff64702b
MC		 424 if (pctx->pkey != NULL)
425 EVP_PKEY_up_ref(pctx->pkey);
426 rctx->pkey = pctx->pkey;
427 rctx->operation = pctx->operation;
3ee348b0 428 rctx->libctx = pctx->libctx;
f23bc0b7 429 rctx->keytype = pctx->keytype;
a07c17ef 430 rctx->propquery = pctx->propquery;
ff64702b 431
864b89ce
MC		 432 if (EVP_PKEY_CTX_IS_DERIVE_OP(pctx)) {
433 if (pctx->op.kex.exchange != NULL) {
434 rctx->op.kex.exchange = pctx->op.kex.exchange;
435 if (!EVP_KEYEXCH_up_ref(rctx->op.kex.exchange)) {
436 OPENSSL_free(rctx);
437 return NULL;
438 }
ff64702b 439 }
864b89ce
MC		 440 if (pctx->op.kex.exchprovctx != NULL) {
441 if (!ossl_assert(pctx->op.kex.exchange != NULL))
442 return NULL;
443 rctx->op.kex.exchprovctx
444 = pctx->op.kex.exchange->dupctx(pctx->op.kex.exchprovctx);
445 if (rctx->op.kex.exchprovctx == NULL) {
446 EVP_KEYEXCH_free(rctx->op.kex.exchange);
447 OPENSSL_free(rctx);
448 return NULL;
449 }
450 return rctx;
451 }
452 } else if (EVP_PKEY_CTX_IS_SIGNATURE_OP(pctx)) {
453 if (pctx->op.sig.signature != NULL) {
454 rctx->op.sig.signature = pctx->op.sig.signature;
455 if (!EVP_SIGNATURE_up_ref(rctx->op.sig.signature)) {
456 OPENSSL_free(rctx);
457 return NULL;
458 }
459 }
460 if (pctx->op.sig.sigprovctx != NULL) {
461 if (!ossl_assert(pctx->op.sig.signature != NULL))
462 return NULL;
463 rctx->op.sig.sigprovctx
464 = pctx->op.sig.signature->dupctx(pctx->op.sig.sigprovctx);
465 if (rctx->op.sig.sigprovctx == NULL) {
466 EVP_SIGNATURE_free(rctx->op.sig.signature);
467 OPENSSL_free(rctx);
468 return NULL;
469 }
470 return rctx;
ff64702b 471 }
2c938e2e
MC		 472 } else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(pctx)) {
473 if (pctx->op.ciph.cipher != NULL) {
474 rctx->op.ciph.cipher = pctx->op.ciph.cipher;
475 if (!EVP_ASYM_CIPHER_up_ref(rctx->op.ciph.cipher)) {
476 OPENSSL_free(rctx);
477 return NULL;
478 }
479 }
480 if (pctx->op.ciph.ciphprovctx != NULL) {
481 if (!ossl_assert(pctx->op.ciph.cipher != NULL))
482 return NULL;
483 rctx->op.ciph.ciphprovctx
484 = pctx->op.ciph.cipher->dupctx(pctx->op.ciph.ciphprovctx);
485 if (rctx->op.ciph.ciphprovctx == NULL) {
486 EVP_ASYM_CIPHER_free(rctx->op.ciph.cipher);
487 OPENSSL_free(rctx);
488 return NULL;
489 }
490 return rctx;
491 }
ff64702b
MC		 492 }
493
0f113f3e 494 rctx->pmeth = pctx->pmeth;
e683582b 495# ifndef OPENSSL_NO_ENGINE
0f113f3e 496 rctx->engine = pctx->engine;
e683582b 497# endif
8bdcef40 498
0f113f3e 499 if (pctx->peerkey)
03273d61 500 EVP_PKEY_up_ref(pctx->peerkey);
0f113f3e 501 rctx->peerkey = pctx->peerkey;
8bdcef40 502
0f113f3e
MC		 503 if (pctx->pmeth->copy(rctx, pctx) > 0)
504 return rctx;
8bdcef40 505
83b4049a 506 rctx->pmeth = NULL;
0f113f3e
MC		 507 EVP_PKEY_CTX_free(rctx);
508 return NULL;
8bdcef40 509
0f113f3e 510}
8bdcef40 511
ba30bad5 512int EVP_PKEY_meth_add0(const EVP_PKEY_METHOD *pmeth)
0f113f3e
MC		 513{
514 if (app_pkey_methods == NULL) {
515 app_pkey_methods = sk_EVP_PKEY_METHOD_new(pmeth_cmp);
3484236d
F		 516 if (app_pkey_methods == NULL){
517 EVPerr(EVP_F_EVP_PKEY_METH_ADD0, ERR_R_MALLOC_FAILURE);
0f113f3e 518 return 0;
3484236d 519 }
0f113f3e 520 }
3484236d
F		 521 if (!sk_EVP_PKEY_METHOD_push(app_pkey_methods, pmeth)) {
522 EVPerr(EVP_F_EVP_PKEY_METH_ADD0, ERR_R_MALLOC_FAILURE);
0f113f3e 523 return 0;
3484236d 524 }
0f113f3e
MC		 525 sk_EVP_PKEY_METHOD_sort(app_pkey_methods);
526 return 1;
527}
ba30bad5 528
0822e89a
PY		 529void evp_app_cleanup_int(void)
530{
531 if (app_pkey_methods != NULL)
532 sk_EVP_PKEY_METHOD_pop_free(app_pkey_methods, EVP_PKEY_meth_free);
533}
534
535int EVP_PKEY_meth_remove(const EVP_PKEY_METHOD *pmeth)
536{
537 const EVP_PKEY_METHOD *ret;
538
539 ret = sk_EVP_PKEY_METHOD_delete_ptr(app_pkey_methods, pmeth);
540
541 return ret == NULL ? 0 : 1;
542}
543
48ed9c23
DSH		 544size_t EVP_PKEY_meth_get_count(void)
545{
546 size_t rv = OSSL_NELEM(standard_methods);
547
548 if (app_pkey_methods)
549 rv += sk_EVP_PKEY_METHOD_num(app_pkey_methods);
550 return rv;
551}
552
553const EVP_PKEY_METHOD *EVP_PKEY_meth_get0(size_t idx)
554{
555 if (idx < OSSL_NELEM(standard_methods))
19bd1fa1 556 return (standard_methods[idx])();
48ed9c23
DSH		 557 if (app_pkey_methods == NULL)
558 return NULL;
559 idx -= OSSL_NELEM(standard_methods);
560 if (idx >= (size_t)sk_EVP_PKEY_METHOD_num(app_pkey_methods))
561 return NULL;
562 return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx);
563}
e683582b 564#endif
48ed9c23 565
e683582b 566int EVP_PKEY_CTX_set_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
0f113f3e 567{
e683582b
SL		 568 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
569 && ctx->op.kex.exchprovctx != NULL
570 && ctx->op.kex.exchange != NULL
571 && ctx->op.kex.exchange->set_ctx_params != NULL)
572 return ctx->op.kex.exchange->set_ctx_params(ctx->op.kex.exchprovctx,
573 params);
574 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
575 && ctx->op.sig.sigprovctx != NULL
576 && ctx->op.sig.signature != NULL
577 && ctx->op.sig.signature->set_ctx_params != NULL)
578 return ctx->op.sig.signature->set_ctx_params(ctx->op.sig.sigprovctx,
579 params);
580 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
581 && ctx->op.ciph.ciphprovctx != NULL
582 && ctx->op.ciph.cipher != NULL
583 && ctx->op.ciph.cipher->set_ctx_params != NULL)
584 return ctx->op.ciph.cipher->set_ctx_params(ctx->op.ciph.ciphprovctx,
585 params);
62924755
RL		 586 if (EVP_PKEY_CTX_IS_GEN_OP(ctx)
587 && ctx->op.keymgmt.genctx != NULL
588 && ctx->keymgmt != NULL
589 && ctx->keymgmt->gen_set_params != NULL)
590 return evp_keymgmt_gen_set_params(ctx->keymgmt, ctx->op.keymgmt.genctx,
591 params);
e683582b 592 return 0;
0f113f3e 593}
5da98aa6 594
e683582b 595#ifndef FIPS_MODE
9c45222d
MC		 596int EVP_PKEY_CTX_get_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
597{
4fe54d67
NT		 598 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
599 && ctx->op.kex.exchprovctx != NULL
600 && ctx->op.kex.exchange != NULL
601 && ctx->op.kex.exchange->get_ctx_params != NULL)
602 return ctx->op.kex.exchange->get_ctx_params(ctx->op.kex.exchprovctx,
603 params);
864b89ce
MC		 604 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
605 && ctx->op.sig.sigprovctx != NULL
606 && ctx->op.sig.signature != NULL
607 && ctx->op.sig.signature->get_ctx_params != NULL)
608 return ctx->op.sig.signature->get_ctx_params(ctx->op.sig.sigprovctx,
609 params);
2c938e2e
MC		 610 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
611 && ctx->op.ciph.ciphprovctx != NULL
612 && ctx->op.ciph.cipher != NULL
613 && ctx->op.ciph.cipher->get_ctx_params != NULL)
614 return ctx->op.ciph.cipher->get_ctx_params(ctx->op.ciph.ciphprovctx,
615 params);
2b9add69
RL		 616 if (EVP_PKEY_CTX_IS_GEN_OP(ctx)
617 && ctx->op.keymgmt.genctx != NULL
618 && ctx->keymgmt != NULL
619 && ctx->keymgmt->gen_get_params != NULL)
620 return evp_keymgmt_gen_get_params(ctx->keymgmt, ctx->op.keymgmt.genctx,
621 params);
9c45222d
MC		 622 return 0;
623}
624
625const OSSL_PARAM *EVP_PKEY_CTX_gettable_params(EVP_PKEY_CTX *ctx)
626{
4fe54d67
NT		 627 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
628 && ctx->op.kex.exchange != NULL
629 && ctx->op.kex.exchange->gettable_ctx_params != NULL)
630 return ctx->op.kex.exchange->gettable_ctx_params();
864b89ce
MC		 631 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
632 && ctx->op.sig.signature != NULL
633 && ctx->op.sig.signature->gettable_ctx_params != NULL)
634 return ctx->op.sig.signature->gettable_ctx_params();
9c45222d 635
2c938e2e
MC		 636 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
637 && ctx->op.ciph.cipher != NULL
638 && ctx->op.ciph.cipher->gettable_ctx_params != NULL)
639 return ctx->op.ciph.cipher->gettable_ctx_params();
640
9c45222d
MC		 641 return NULL;
642}
643
9c45222d
MC		 644const OSSL_PARAM *EVP_PKEY_CTX_settable_params(EVP_PKEY_CTX *ctx)
645{
864b89ce
MC		 646 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
647 && ctx->op.kex.exchange != NULL
648 && ctx->op.kex.exchange->settable_ctx_params != NULL)
649 return ctx->op.kex.exchange->settable_ctx_params();
650 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
651 && ctx->op.sig.signature != NULL
652 && ctx->op.sig.signature->settable_ctx_params != NULL)
653 return ctx->op.sig.signature->settable_ctx_params();
2c938e2e
MC		 654 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
655 && ctx->op.ciph.cipher != NULL
656 && ctx->op.ciph.cipher->settable_ctx_params != NULL)
657 return ctx->op.ciph.cipher->settable_ctx_params();
62924755
RL		 658 if (EVP_PKEY_CTX_IS_GEN_OP(ctx)
659 && ctx->keymgmt != NULL
660 && ctx->keymgmt->gen_settable_params != NULL)
661 return evp_keymgmt_gen_settable_params(ctx->keymgmt);
9c45222d
MC		 662
663 return NULL;
664}
665
4fe54d67
NT		 666/*
667 * Internal helpers for stricter EVP_PKEY_CTX_{set,get}_params().
668 *
669 * Return 1 on success, 0 or negative for errors.
670 *
671 * In particular they return -2 if any of the params is not supported.
672 *
673 * They are not available in FIPS_MODE as they depend on
674 * - EVP_PKEY_CTX_{get,set}_params()
675 * - EVP_PKEY_CTX_{gettable,settable}_params()
676 *
677 */
678int evp_pkey_ctx_set_params_strict(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
679{
680 const OSSL_PARAM *p;
681
682 if (ctx == NULL || params == NULL)
683 return 0;
684
685 for (p = params; p->key != NULL; p++) {
686 /* Check the ctx actually understands this parameter */
687 if (OSSL_PARAM_locate_const(EVP_PKEY_CTX_settable_params(ctx),
688 p->key) == NULL )
689 return -2;
690 }
691
692 return EVP_PKEY_CTX_set_params(ctx, params);
693}
694
695int evp_pkey_ctx_get_params_strict(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
696{
697 const OSSL_PARAM *p;
698
699 if (ctx == NULL || params == NULL)
700 return 0;
701
702 for (p = params; p->key != NULL; p++ ) {
703 /* Check the ctx actually understands this parameter */
704 if (OSSL_PARAM_locate_const(EVP_PKEY_CTX_gettable_params(ctx),
705 p->key) == NULL )
706 return -2;
707 }
708
709 return EVP_PKEY_CTX_get_params(ctx, params);
710}
711
e683582b 712# ifndef OPENSSL_NO_DH
35aca9ec
MC		 713int EVP_PKEY_CTX_set_dh_pad(EVP_PKEY_CTX *ctx, int pad)
714{
715 OSSL_PARAM dh_pad_params[2];
1c3ace68 716 unsigned int upad = pad;
35aca9ec 717
864b89ce
MC		 718 /* We use EVP_PKEY_CTX_ctrl return values */
719 if (ctx == NULL || !EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
720 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
721 return -2;
722 }
723
35aca9ec 724 /* TODO(3.0): Remove this eventually when no more legacy */
864b89ce 725 if (ctx->op.kex.exchprovctx == NULL)
35aca9ec
MC		 726 return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DH, EVP_PKEY_OP_DERIVE,
727 EVP_PKEY_CTRL_DH_PAD, pad, NULL);
728
1c3ace68 729 dh_pad_params[0] = OSSL_PARAM_construct_uint(OSSL_EXCHANGE_PARAM_PAD, &upad);
35aca9ec
MC		 730 dh_pad_params[1] = OSSL_PARAM_construct_end();
731
732 return EVP_PKEY_CTX_set_params(ctx, dh_pad_params);
733}
e683582b 734# endif
35aca9ec 735
9c45222d
MC		 736int EVP_PKEY_CTX_get_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD **md)
737{
738 OSSL_PARAM sig_md_params[3], *p = sig_md_params;
739 /* 80 should be big enough */
740 char name[80] = "";
741 const EVP_MD *tmp;
742
864b89ce 743 if (ctx == NULL || !EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
9c45222d
MC		 744 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
745 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
746 return -2;
747 }
748
749 /* TODO(3.0): Remove this eventually when no more legacy */
864b89ce 750 if (ctx->op.sig.sigprovctx == NULL)
9c45222d
MC		 751 return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG,
752 EVP_PKEY_CTRL_GET_MD, 0, (void *)(md));
753
754 *p++ = OSSL_PARAM_construct_utf8_string(OSSL_SIGNATURE_PARAM_DIGEST,
755 name,
756 sizeof(name));
757 *p++ = OSSL_PARAM_construct_end();
758
759 if (!EVP_PKEY_CTX_get_params(ctx, sig_md_params))
760 return 0;
761
7606bed9 762 tmp = evp_get_digestbyname_ex(ctx->libctx, name);
9c45222d
MC		 763 if (tmp == NULL)
764 return 0;
765
766 *md = tmp;
767
768 return 1;
769}
770
4889dadc
MC		 771int EVP_PKEY_CTX_set_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD *md)
772{
00bc1ad9 773 OSSL_PARAM sig_md_params[2], *p = sig_md_params;
4889dadc
MC		 774 const char *name;
775
864b89ce 776 if (ctx == NULL || !EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
9c45222d
MC		 777 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
778 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
779 return -2;
780 }
781
4889dadc 782 /* TODO(3.0): Remove this eventually when no more legacy */
864b89ce 783 if (ctx->op.sig.sigprovctx == NULL)
4889dadc
MC		 784 return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG,
785 EVP_PKEY_CTRL_MD, 0, (void *)(md));
786
9c45222d
MC		 787 if (md == NULL) {
788 name = "";
9c45222d 789 } else {
9c45222d
MC		 790 name = EVP_MD_name(md);
791 }
4889dadc 792
9c45222d
MC		 793 *p++ = OSSL_PARAM_construct_utf8_string(OSSL_SIGNATURE_PARAM_DIGEST,
794 /*
795 * Cast away the const. This is read
796 * only so should be safe
797 */
8b6ffd40 798 (char *)name, 0);
9c45222d 799 *p++ = OSSL_PARAM_construct_end();
4889dadc 800
9c45222d 801 return EVP_PKEY_CTX_set_params(ctx, sig_md_params);
4889dadc
MC		 802}
803
35aca9ec
MC		 804static int legacy_ctrl_to_param(EVP_PKEY_CTX *ctx, int keytype, int optype,
805 int cmd, int p1, void *p2)
806{
71434aed
DB		 807 /*
808 * GOST CMS format is different for different cipher algorithms.
809 * Most of other algorithms don't have such a difference
810 * so this ctrl is just ignored.
811 */
812 if (cmd == EVP_PKEY_CTRL_CIPHER)
813 return -2;
7165593c 814
e683582b 815# ifndef OPENSSL_NO_DH
4fe54d67
NT		 816 if (keytype == EVP_PKEY_DH) {
817 switch (cmd) {
818 case EVP_PKEY_CTRL_DH_PAD:
819 return EVP_PKEY_CTX_set_dh_pad(ctx, p1);
7165593c
SL		 820 case EVP_PKEY_CTRL_DH_PARAMGEN_PRIME_LEN:
821 return EVP_PKEY_CTX_set_dh_paramgen_prime_len(ctx, p1);
822 case EVP_PKEY_CTRL_DH_PARAMGEN_SUBPRIME_LEN:
823 return EVP_PKEY_CTX_set_dh_paramgen_subprime_len(ctx, p1);
824 case EVP_PKEY_CTRL_DH_PARAMGEN_GENERATOR:
825 return EVP_PKEY_CTX_set_dh_paramgen_generator(ctx, p1);
826 case EVP_PKEY_CTRL_DH_PARAMGEN_TYPE:
827 return EVP_PKEY_CTX_set_dh_paramgen_type(ctx, p1);
828 case EVP_PKEY_CTRL_DH_RFC5114:
829 return EVP_PKEY_CTX_set_dh_rfc5114(ctx, p1);
4fe54d67
NT		 830 }
831 }
832# endif
b03ec3b5
SL		 833# ifndef OPENSSL_NO_DSA
834 if (keytype == EVP_PKEY_DSA) {
835 switch (cmd) {
836 case EVP_PKEY_CTRL_DSA_PARAMGEN_BITS:
837 return EVP_PKEY_CTX_set_dsa_paramgen_bits(ctx, p1);
838 case EVP_PKEY_CTRL_DSA_PARAMGEN_Q_BITS:
839 return EVP_PKEY_CTX_set_dsa_paramgen_q_bits(ctx, p1);
840 case EVP_PKEY_CTRL_DSA_PARAMGEN_MD:
841 return EVP_PKEY_CTX_set_dsa_paramgen_md(ctx, p2);
842 }
843 }
844# endif
4fe54d67
NT		 845# ifndef OPENSSL_NO_EC
846 if (keytype == EVP_PKEY_EC) {
847 switch (cmd) {
10d756a7
RL		 848 case EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID:
849 return EVP_PKEY_CTX_set_ec_paramgen_curve_nid(ctx, p1);
6f4b7663
RL		 850 case EVP_PKEY_CTRL_EC_ECDH_COFACTOR:
851 if (p1 == -2) {
852 return EVP_PKEY_CTX_get_ecdh_cofactor_mode(ctx);
853 } else if (p1 < -1 || p1 > 1) {
854 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
855 return -2;
856 } else {
857 return EVP_PKEY_CTX_set_ecdh_cofactor_mode(ctx, p1);
858 }
859 case EVP_PKEY_CTRL_EC_KDF_TYPE:
860 if (p1 == -2) {
861 return EVP_PKEY_CTX_get_ecdh_kdf_type(ctx);
862 } else {
863 return EVP_PKEY_CTX_set_ecdh_kdf_type(ctx, p1);
864 }
865 case EVP_PKEY_CTRL_GET_EC_KDF_MD:
866 return EVP_PKEY_CTX_get_ecdh_kdf_md(ctx, p2);
867 case EVP_PKEY_CTRL_EC_KDF_MD:
868 return EVP_PKEY_CTX_set_ecdh_kdf_md(ctx, p2);
869 case EVP_PKEY_CTRL_GET_EC_KDF_OUTLEN:
870 return EVP_PKEY_CTX_get_ecdh_kdf_outlen(ctx, p2);
871 case EVP_PKEY_CTRL_EC_KDF_OUTLEN:
872 return EVP_PKEY_CTX_set_ecdh_kdf_outlen(ctx, p1);
873 case EVP_PKEY_CTRL_GET_EC_KDF_UKM:
874 return EVP_PKEY_CTX_get0_ecdh_kdf_ukm(ctx, p2);
875 case EVP_PKEY_CTRL_EC_KDF_UKM:
876 return EVP_PKEY_CTX_set0_ecdh_kdf_ukm(ctx, p2, p1);
4fe54d67
NT		 877 }
878 }
e683582b 879# endif
2decdad3
RL		 880 if (keytype == EVP_PKEY_RSA) {
881 switch (cmd) {
882 case EVP_PKEY_CTRL_RSA_OAEP_MD:
883 return EVP_PKEY_CTX_set_rsa_oaep_md(ctx, p2);
884 case EVP_PKEY_CTRL_GET_RSA_OAEP_MD:
885 return EVP_PKEY_CTX_get_rsa_oaep_md(ctx, p2);
886 case EVP_PKEY_CTRL_RSA_MGF1_MD:
887 return EVP_PKEY_CTX_set_rsa_oaep_md(ctx, p2);
888 case EVP_PKEY_CTRL_RSA_OAEP_LABEL:
889 return EVP_PKEY_CTX_set0_rsa_oaep_label(ctx, p2, p1);
890 case EVP_PKEY_CTRL_GET_RSA_OAEP_LABEL:
891 return EVP_PKEY_CTX_get0_rsa_oaep_label(ctx, (unsigned char **)p2);
892 case EVP_PKEY_CTRL_RSA_KEYGEN_BITS:
893 return EVP_PKEY_CTX_set_rsa_keygen_bits(ctx, p1);
894 case EVP_PKEY_CTRL_RSA_KEYGEN_PUBEXP:
895 return EVP_PKEY_CTX_set_rsa_keygen_pubexp(ctx, p2);
896 case EVP_PKEY_CTRL_RSA_KEYGEN_PRIMES:
897 return EVP_PKEY_CTX_set_rsa_keygen_primes(ctx, p1);
898 }
899 }
900 /*
901 * keytype == -1 is used when several key types share the same structure,
902 * or for generic controls that are the same across multiple key types.
903 */
4fe54d67
NT		 904 if (keytype == -1) {
905 switch (cmd) {
6f4b7663
RL		 906 case EVP_PKEY_CTRL_MD:
907 return EVP_PKEY_CTX_set_signature_md(ctx, p2);
908 case EVP_PKEY_CTRL_GET_MD:
909 return EVP_PKEY_CTX_get_signature_md(ctx, p2);
910 case EVP_PKEY_CTRL_RSA_PADDING:
911 return EVP_PKEY_CTX_set_rsa_padding(ctx, p1);
912 case EVP_PKEY_CTRL_GET_RSA_PADDING:
913 return EVP_PKEY_CTX_get_rsa_padding(ctx, p2);
6f4b7663
RL		 914 case EVP_PKEY_CTRL_GET_RSA_MGF1_MD:
915 return EVP_PKEY_CTX_get_rsa_oaep_md(ctx, p2);
6f4b7663
RL		 916 case EVP_PKEY_CTRL_RSA_PSS_SALTLEN:
917 return EVP_PKEY_CTX_set_rsa_pss_saltlen(ctx, p1);
918 case EVP_PKEY_CTRL_GET_RSA_PSS_SALTLEN:
919 return EVP_PKEY_CTX_get_rsa_pss_saltlen(ctx, p2);
920 case EVP_PKEY_CTRL_PKCS7_ENCRYPT:
921 case EVP_PKEY_CTRL_PKCS7_DECRYPT:
e683582b 922# ifndef OPENSSL_NO_CMS
6f4b7663
RL		 923 case EVP_PKEY_CTRL_CMS_DECRYPT:
924 case EVP_PKEY_CTRL_CMS_ENCRYPT:
e683582b 925# endif
cc572c25
RL		 926 /* TODO (3.0) Temporary hack, this should probe */
927 if (!EVP_PKEY_is_a(EVP_PKEY_CTX_get0_pkey(ctx), "RSASSA-PSS"))
6f4b7663
RL		 928 return 1;
929 ERR_raise(ERR_LIB_EVP,
930 EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
931 return -2;
4fe54d67 932 }
35aca9ec
MC		 933 }
934 return 0;
935}
936
0b6f3c66 937int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype,
0f113f3e
MC		 938 int cmd, int p1, void *p2)
939{
940 int ret;
4803717f 941
35aca9ec
MC		 942 if (ctx == NULL) {
943 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED);
944 return -2;
945 }
946
864b89ce 947 if ((EVP_PKEY_CTX_IS_DERIVE_OP(ctx) && ctx->op.kex.exchprovctx != NULL)
48bb9792 948 || (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
2c938e2e
MC		 949 && ctx->op.sig.sigprovctx != NULL)
950 || (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
62924755
RL		 951 && ctx->op.ciph.ciphprovctx != NULL)
952 || (EVP_PKEY_CTX_IS_GEN_OP(ctx)
953 && ctx->op.keymgmt.genctx != NULL))
35aca9ec
MC		 954 return legacy_ctrl_to_param(ctx, keytype, optype, cmd, p1, p2);
955
956 if (ctx->pmeth == NULL || ctx->pmeth->ctrl == NULL) {
0f113f3e
MC		 957 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED);
958 return -2;
959 }
960 if ((keytype != -1) && (ctx->pmeth->pkey_id != keytype))
961 return -1;
962
4803717f
PY		 963 /* Skip the operation checks since this is called in a very early stage */
964 if (ctx->pmeth->digest_custom != NULL)
965 goto doit;
966
0f113f3e
MC		 967 if (ctx->operation == EVP_PKEY_OP_UNDEFINED) {
968 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_NO_OPERATION_SET);
969 return -1;
970 }
971
972 if ((optype != -1) && !(ctx->operation & optype)) {
973 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_INVALID_OPERATION);
974 return -1;
975 }
976
4803717f 977 doit:
0f113f3e
MC		 978 ret = ctx->pmeth->ctrl(ctx, cmd, p1, p2);
979
980 if (ret == -2)
981 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED);
982
983 return ret;
0f113f3e 984}
0b6f3c66 985
cefa762e 986int EVP_PKEY_CTX_ctrl_uint64(EVP_PKEY_CTX *ctx, int keytype, int optype,
64bf1016 987 int cmd, uint64_t value)
cefa762e
JB		 988{
989 return EVP_PKEY_CTX_ctrl(ctx, keytype, optype, cmd, 0, &value);
990}
991
35aca9ec
MC		 992static int legacy_ctrl_str_to_param(EVP_PKEY_CTX *ctx, const char *name,
993 const char *value)
994{
10d756a7
RL		 995
996 /* Special cases that we intercept */
997# ifndef OPENSSL_NO_EC
998 /*
999 * We don't support encoding settings for providers, i.e. the only
1000 * possible encoding is "named_curve", so we simply fail when something
1001 * else is given, and otherwise just pretend all is fine.
1002 */
1003 if (strcmp(name, "ec_param_enc") == 0) {
1004 if (strcmp(value, "named_curve") == 0) {
1005 return 1;
1006 } else {
1007 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1008 return -2;
1009 }
1010 }
1011# endif
1012
972fa318
RL		 1013 if (strcmp(name, "rsa_padding_mode") == 0)
1014 name = OSSL_ASYM_CIPHER_PARAM_PAD_MODE;
1015 else if (strcmp(name, "rsa_mgf1_md") == 0)
1016 name = OSSL_ASYM_CIPHER_PARAM_MGF1_DIGEST;
1017 else if (strcmp(name, "rsa_oaep_md") == 0)
1018 name = OSSL_ASYM_CIPHER_PARAM_OAEP_DIGEST;
1019 else if (strcmp(name, "rsa_oaep_label") == 0)
1020 name = OSSL_ASYM_CIPHER_PARAM_OAEP_LABEL;
6f4b7663
RL		 1021 else if (strcmp(name, "rsa_pss_saltlen") == 0)
1022 name = OSSL_SIGNATURE_PARAM_PSS_SALTLEN;
2972af10
RL		 1023 else if (strcmp(name, "rsa_keygen_bits") == 0)
1024 name = OSSL_PKEY_PARAM_RSA_BITS;
1025 else if (strcmp(name, "rsa_keygen_pubexp") == 0)
1026 name = OSSL_PKEY_PARAM_RSA_E;
1027 else if (strcmp(name, "rsa_keygen_primes") == 0)
1028 name = OSSL_PKEY_PARAM_RSA_PRIMES;
b03ec3b5
SL		 1029# ifndef OPENSSL_NO_DSA
1030 else if (strcmp(name, "dsa_paramgen_bits") == 0)
1031 name = OSSL_PKEY_PARAM_FFC_PBITS;
1032 else if (strcmp(name, "dsa_paramgen_q_bits") == 0)
1033 name = OSSL_PKEY_PARAM_FFC_QBITS;
1034 else if (strcmp(name, "dsa_paramgen_md") == 0)
1035 name = OSSL_PKEY_PARAM_FFC_DIGEST;
1036# endif
e683582b 1037# ifndef OPENSSL_NO_DH
7165593c
SL		 1038 else if (strcmp(name, "dh_paramgen_generator") == 0)
1039 name = OSSL_PKEY_PARAM_FFC_GENERATOR;
1040 else if (strcmp(name, "dh_paramgen_prime_len") == 0)
1041 name = OSSL_PKEY_PARAM_FFC_PBITS;
1042 else if (strcmp(name, "dh_paramgen_subprime_len") == 0)
1043 name = OSSL_PKEY_PARAM_FFC_QBITS;
1044 else if (strcmp(name, "dh_paramgen_type") == 0) {
1045 name = OSSL_PKEY_PARAM_FFC_TYPE;
1046 value = dh_gen_type_id2name(atoi(value));
1047 } else if (strcmp(name, "dh_param") == 0)
1048 name = OSSL_PKEY_PARAM_FFC_GROUP;
1049 else if (strcmp(name, "dh_rfc5114") == 0) {
1050 name = OSSL_PKEY_PARAM_FFC_GROUP;
1051 value = ffc_named_group_from_uid(atoi(value));
1052 } else if (strcmp(name, "dh_pad") == 0)
972fa318 1053 name = OSSL_EXCHANGE_PARAM_PAD;
e683582b 1054# endif
4fe54d67 1055# ifndef OPENSSL_NO_EC
10d756a7
RL		 1056 else if (strcmp(name, "ec_paramgen_curve") == 0)
1057 name = OSSL_PKEY_PARAM_EC_NAME;
4fe54d67
NT		 1058 else if (strcmp(name, "ecdh_cofactor_mode") == 0)
1059 name = OSSL_EXCHANGE_PARAM_EC_ECDH_COFACTOR_MODE;
1060 else if (strcmp(name, "ecdh_kdf_md") == 0)
f552d900 1061 name = OSSL_EXCHANGE_PARAM_KDF_DIGEST;
4fe54d67 1062# endif
89abd1b6 1063
972fa318
RL		 1064 {
1065 /*
1066 * TODO(3.0) reduce the code above to only translate known legacy
1067 * string to the corresponding core name (see core_names.h), but
1068 * otherwise leave it to this code block to do the actual work.
1069 */
1070 const OSSL_PARAM *settable = EVP_PKEY_CTX_settable_params(ctx);
1071 OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
1072 int rv = 0;
292c8bdc 1073 int exists = 0;
89abd1b6 1074
972fa318 1075 if (!OSSL_PARAM_allocate_from_text(&params[0], settable, name, value,
292c8bdc
P		 1076 strlen(value), &exists)) {
1077 if (!exists) {
1078 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1079 return -2;
1080 }
89abd1b6 1081 return 0;
292c8bdc 1082 }
972fa318
RL		 1083 if (EVP_PKEY_CTX_set_params(ctx, params))
1084 rv = 1;
1085 OPENSSL_free(params[0].data);
1086 return rv;
89abd1b6 1087 }
35aca9ec
MC		 1088}
1089
4a3dc3c0 1090int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX *ctx,
0f113f3e
MC		 1091 const char *name, const char *value)
1092{
35aca9ec
MC		 1093 if (ctx == NULL) {
1094 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR, EVP_R_COMMAND_NOT_SUPPORTED);
1095 return -2;
1096 }
1097
864b89ce
MC		 1098 if ((EVP_PKEY_CTX_IS_DERIVE_OP(ctx) && ctx->op.kex.exchprovctx != NULL)
1099 || (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
2c938e2e
MC		 1100 && ctx->op.sig.sigprovctx != NULL)
1101 || (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
62924755
RL		 1102 && ctx->op.ciph.ciphprovctx != NULL)
1103 || (EVP_PKEY_CTX_IS_GEN_OP(ctx)
1104 && ctx->op.keymgmt.genctx != NULL))
35aca9ec
MC		 1105 return legacy_ctrl_str_to_param(ctx, name, value);
1106
0f113f3e
MC		 1107 if (!ctx || !ctx->pmeth || !ctx->pmeth->ctrl_str) {
1108 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR, EVP_R_COMMAND_NOT_SUPPORTED);
1109 return -2;
1110 }
410877ba
DSH		 1111 if (strcmp(name, "digest") == 0)
1112 return EVP_PKEY_CTX_md(ctx, EVP_PKEY_OP_TYPE_SIG, EVP_PKEY_CTRL_MD,
1113 value);
0f113f3e
MC		 1114 return ctx->pmeth->ctrl_str(ctx, name, value);
1115}
f5cda4cb 1116
99119000
DSH		 1117/* Utility functions to send a string of hex string to a ctrl */
1118
1119int EVP_PKEY_CTX_str2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *str)
1120{
1121 size_t len;
1122
1123 len = strlen(str);
1124 if (len > INT_MAX)
1125 return -1;
1126 return ctx->pmeth->ctrl(ctx, cmd, len, (void *)str);
1127}
1128
1129int EVP_PKEY_CTX_hex2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *hex)
1130{
1131 unsigned char *bin;
1132 long binlen;
1133 int rv = -1;
1134
14f051a0 1135 bin = OPENSSL_hexstr2buf(hex, &binlen);
99119000
DSH		 1136 if (bin == NULL)
1137 return 0;
1138 if (binlen <= INT_MAX)
1139 rv = ctx->pmeth->ctrl(ctx, cmd, binlen, bin);
1140 OPENSSL_free(bin);
1141 return rv;
1142}
52ad523c 1143
410877ba
DSH		 1144/* Pass a message digest to a ctrl */
1145int EVP_PKEY_CTX_md(EVP_PKEY_CTX *ctx, int optype, int cmd, const char *md)
1146{
1147 const EVP_MD *m;
c82bafc5 1148
410877ba
DSH		 1149 if (md == NULL || (m = EVP_get_digestbyname(md)) == NULL) {
1150 EVPerr(EVP_F_EVP_PKEY_CTX_MD, EVP_R_INVALID_DIGEST);
1151 return 0;
1152 }
1153 return EVP_PKEY_CTX_ctrl(ctx, -1, optype, cmd, 0, (void *)m);
1154}
99119000 1155
b28dea4e 1156int EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 1157{
1158 return ctx->operation;
1159}
b28dea4e
DSH		 1160
1161void EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX *ctx, int *dat, int datlen)
0f113f3e
MC		 1162{
1163 ctx->keygen_info = dat;
1164 ctx->keygen_info_count = datlen;
1165}
b28dea4e 1166
f5cda4cb 1167void EVP_PKEY_CTX_set_data(EVP_PKEY_CTX *ctx, void *data)
0f113f3e
MC		 1168{
1169 ctx->data = data;
1170}
f5cda4cb 1171
9fdcc21f 1172void *EVP_PKEY_CTX_get_data(const EVP_PKEY_CTX *ctx)
0f113f3e
MC		 1173{
1174 return ctx->data;
1175}
f5cda4cb 1176
81cebb8b 1177EVP_PKEY *EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 1178{
1179 return ctx->pkey;
1180}
81cebb8b 1181
0e1dba93 1182EVP_PKEY *EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 1183{
1184 return ctx->peerkey;
1185}
1186
f5cda4cb 1187void EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX *ctx, void *data)
0f113f3e
MC		 1188{
1189 ctx->app_data = data;
1190}
f5cda4cb
DSH		 1191
1192void *EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 1193{
1194 return ctx->app_data;
1195}
ba30bad5
DSH		 1196
1197void EVP_PKEY_meth_set_init(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1198 int (*init) (EVP_PKEY_CTX *ctx))
1199{
1200 pmeth->init = init;
1201}
8bdcef40
DSH		 1202
1203void EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD *pmeth,
0f113f3e 1204 int (*copy) (EVP_PKEY_CTX *dst,
9fdcc21f 1205 const EVP_PKEY_CTX *src))
0f113f3e
MC		 1206{
1207 pmeth->copy = copy;
1208}
ba30bad5
DSH		 1209
1210void EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1211 void (*cleanup) (EVP_PKEY_CTX *ctx))
1212{
1213 pmeth->cleanup = cleanup;
1214}
ba30bad5
DSH		 1215
1216void EVP_PKEY_meth_set_paramgen(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1217 int (*paramgen_init) (EVP_PKEY_CTX *ctx),
1218 int (*paramgen) (EVP_PKEY_CTX *ctx,
1219 EVP_PKEY *pkey))
1220{
1221 pmeth->paramgen_init = paramgen_init;
1222 pmeth->paramgen = paramgen;
1223}
ba30bad5
DSH		 1224
1225void EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1226 int (*keygen_init) (EVP_PKEY_CTX *ctx),
1227 int (*keygen) (EVP_PKEY_CTX *ctx,
1228 EVP_PKEY *pkey))
1229{
1230 pmeth->keygen_init = keygen_init;
1231 pmeth->keygen = keygen;
1232}
ba30bad5
DSH		 1233
1234void EVP_PKEY_meth_set_sign(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1235 int (*sign_init) (EVP_PKEY_CTX *ctx),
1236 int (*sign) (EVP_PKEY_CTX *ctx,
1237 unsigned char *sig, size_t *siglen,
1238 const unsigned char *tbs,
1239 size_t tbslen))
1240{
1241 pmeth->sign_init = sign_init;
1242 pmeth->sign = sign;
1243}
ba30bad5
DSH		 1244
1245void EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1246 int (*verify_init) (EVP_PKEY_CTX *ctx),
1247 int (*verify) (EVP_PKEY_CTX *ctx,
1248 const unsigned char *sig,
1249 size_t siglen,
1250 const unsigned char *tbs,
1251 size_t tbslen))
1252{
1253 pmeth->verify_init = verify_init;
1254 pmeth->verify = verify;
1255}
ba30bad5
DSH		 1256
1257void EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1258 int (*verify_recover_init) (EVP_PKEY_CTX
1259 *ctx),
1260 int (*verify_recover) (EVP_PKEY_CTX
1261 *ctx,
1262 unsigned char
1263 *sig,
1264 size_t *siglen,
1265 const unsigned
1266 char *tbs,
1267 size_t tbslen))
1268{
1269 pmeth->verify_recover_init = verify_recover_init;
1270 pmeth->verify_recover = verify_recover;
1271}
ba30bad5
DSH		 1272
1273void EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1274 int (*signctx_init) (EVP_PKEY_CTX *ctx,
1275 EVP_MD_CTX *mctx),
1276 int (*signctx) (EVP_PKEY_CTX *ctx,
1277 unsigned char *sig,
1278 size_t *siglen,
1279 EVP_MD_CTX *mctx))
1280{
1281 pmeth->signctx_init = signctx_init;
1282 pmeth->signctx = signctx;
1283}
ba30bad5
DSH		 1284
1285void EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1286 int (*verifyctx_init) (EVP_PKEY_CTX *ctx,
1287 EVP_MD_CTX *mctx),
1288 int (*verifyctx) (EVP_PKEY_CTX *ctx,
1289 const unsigned char *sig,
1290 int siglen,
1291 EVP_MD_CTX *mctx))
1292{
1293 pmeth->verifyctx_init = verifyctx_init;
1294 pmeth->verifyctx = verifyctx;
1295}
ba30bad5
DSH		 1296
1297void EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1298 int (*encrypt_init) (EVP_PKEY_CTX *ctx),
1299 int (*encryptfn) (EVP_PKEY_CTX *ctx,
1300 unsigned char *out,
1301 size_t *outlen,
1302 const unsigned char *in,
1303 size_t inlen))
1304{
1305 pmeth->encrypt_init = encrypt_init;
1306 pmeth->encrypt = encryptfn;
1307}
ba30bad5
DSH		 1308
1309void EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1310 int (*decrypt_init) (EVP_PKEY_CTX *ctx),
1311 int (*decrypt) (EVP_PKEY_CTX *ctx,
1312 unsigned char *out,
1313 size_t *outlen,
1314 const unsigned char *in,
1315 size_t inlen))
1316{
1317 pmeth->decrypt_init = decrypt_init;
1318 pmeth->decrypt = decrypt;
1319}
ba30bad5
DSH		 1320
1321void EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1322 int (*derive_init) (EVP_PKEY_CTX *ctx),
1323 int (*derive) (EVP_PKEY_CTX *ctx,
1324 unsigned char *key,
1325 size_t *keylen))
1326{
1327 pmeth->derive_init = derive_init;
1328 pmeth->derive = derive;
1329}
ba30bad5
DSH		 1330
1331void EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1332 int (*ctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
1333 void *p2),
1334 int (*ctrl_str) (EVP_PKEY_CTX *ctx,
1335 const char *type,
1336 const char *value))
1337{
1338 pmeth->ctrl = ctrl;
1339 pmeth->ctrl_str = ctrl_str;
1340}
e7451ed1 1341
2555285f
AH		 1342void EVP_PKEY_meth_set_digestsign(EVP_PKEY_METHOD *pmeth,
1343 int (*digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen,
1344 const unsigned char *tbs, size_t tbslen))
1345{
1346 pmeth->digestsign = digestsign;
1347}
1348
1349void EVP_PKEY_meth_set_digestverify(EVP_PKEY_METHOD *pmeth,
1350 int (*digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig,
1351 size_t siglen, const unsigned char *tbs,
1352 size_t tbslen))
1353{
1354 pmeth->digestverify = digestverify;
1355}
1356
2aee35d3
PY		 1357void EVP_PKEY_meth_set_check(EVP_PKEY_METHOD *pmeth,
1358 int (*check) (EVP_PKEY *pkey))
1359{
1360 pmeth->check = check;
1361}
1362
b0004708
PY		 1363void EVP_PKEY_meth_set_public_check(EVP_PKEY_METHOD *pmeth,
1364 int (*check) (EVP_PKEY *pkey))
1365{
1366 pmeth->public_check = check;
1367}
1368
1369void EVP_PKEY_meth_set_param_check(EVP_PKEY_METHOD *pmeth,
1370 int (*check) (EVP_PKEY *pkey))
1371{
1372 pmeth->param_check = check;
1373}
1374
0a8fdef7
PY		 1375void EVP_PKEY_meth_set_digest_custom(EVP_PKEY_METHOD *pmeth,
1376 int (*digest_custom) (EVP_PKEY_CTX *ctx,
1377 EVP_MD_CTX *mctx))
1378{
1379 pmeth->digest_custom = digest_custom;
1380}
1381
693be9a2 1382void EVP_PKEY_meth_get_init(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1383 int (**pinit) (EVP_PKEY_CTX *ctx))
1384{
1385 *pinit = pmeth->init;
1386}
1387
693be9a2 1388void EVP_PKEY_meth_get_copy(const EVP_PKEY_METHOD *pmeth,
e7451ed1 1389 int (**pcopy) (EVP_PKEY_CTX *dst,
9fdcc21f 1390 const EVP_PKEY_CTX *src))
e7451ed1
DSH		 1391{
1392 *pcopy = pmeth->copy;
1393}
1394
693be9a2 1395void EVP_PKEY_meth_get_cleanup(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1396 void (**pcleanup) (EVP_PKEY_CTX *ctx))
1397{
1398 *pcleanup = pmeth->cleanup;
1399}
1400
693be9a2 1401void EVP_PKEY_meth_get_paramgen(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1402 int (**pparamgen_init) (EVP_PKEY_CTX *ctx),
1403 int (**pparamgen) (EVP_PKEY_CTX *ctx,
1404 EVP_PKEY *pkey))
1405{
1406 if (pparamgen_init)
1407 *pparamgen_init = pmeth->paramgen_init;
1408 if (pparamgen)
1409 *pparamgen = pmeth->paramgen;
1410}
1411
693be9a2 1412void EVP_PKEY_meth_get_keygen(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1413 int (**pkeygen_init) (EVP_PKEY_CTX *ctx),
1414 int (**pkeygen) (EVP_PKEY_CTX *ctx,
1415 EVP_PKEY *pkey))
1416{
1417 if (pkeygen_init)
1418 *pkeygen_init = pmeth->keygen_init;
1419 if (pkeygen)
1420 *pkeygen = pmeth->keygen;
1421}
1422
693be9a2 1423void EVP_PKEY_meth_get_sign(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1424 int (**psign_init) (EVP_PKEY_CTX *ctx),
1425 int (**psign) (EVP_PKEY_CTX *ctx,
1426 unsigned char *sig, size_t *siglen,
1427 const unsigned char *tbs,
1428 size_t tbslen))
1429{
1430 if (psign_init)
1431 *psign_init = pmeth->sign_init;
1432 if (psign)
1433 *psign = pmeth->sign;
1434}
1435
693be9a2 1436void EVP_PKEY_meth_get_verify(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1437 int (**pverify_init) (EVP_PKEY_CTX *ctx),
1438 int (**pverify) (EVP_PKEY_CTX *ctx,
1439 const unsigned char *sig,
1440 size_t siglen,
1441 const unsigned char *tbs,
1442 size_t tbslen))
1443{
1444 if (pverify_init)
1445 *pverify_init = pmeth->verify_init;
1446 if (pverify)
1447 *pverify = pmeth->verify;
1448}
1449
693be9a2 1450void EVP_PKEY_meth_get_verify_recover(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1451 int (**pverify_recover_init) (EVP_PKEY_CTX
1452 *ctx),
1453 int (**pverify_recover) (EVP_PKEY_CTX
1454 *ctx,
1455 unsigned char
1456 *sig,
1457 size_t *siglen,
1458 const unsigned
1459 char *tbs,
1460 size_t tbslen))
1461{
1462 if (pverify_recover_init)
1463 *pverify_recover_init = pmeth->verify_recover_init;
1464 if (pverify_recover)
1465 *pverify_recover = pmeth->verify_recover;
1466}
1467
693be9a2 1468void EVP_PKEY_meth_get_signctx(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1469 int (**psignctx_init) (EVP_PKEY_CTX *ctx,
1470 EVP_MD_CTX *mctx),
1471 int (**psignctx) (EVP_PKEY_CTX *ctx,
1472 unsigned char *sig,
1473 size_t *siglen,
1474 EVP_MD_CTX *mctx))
1475{
1476 if (psignctx_init)
1477 *psignctx_init = pmeth->signctx_init;
1478 if (psignctx)
1479 *psignctx = pmeth->signctx;
1480}
1481
693be9a2 1482void EVP_PKEY_meth_get_verifyctx(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1483 int (**pverifyctx_init) (EVP_PKEY_CTX *ctx,
1484 EVP_MD_CTX *mctx),
1485 int (**pverifyctx) (EVP_PKEY_CTX *ctx,
1486 const unsigned char *sig,
1487 int siglen,
1488 EVP_MD_CTX *mctx))
1489{
1490 if (pverifyctx_init)
1491 *pverifyctx_init = pmeth->verifyctx_init;
1492 if (pverifyctx)
1493 *pverifyctx = pmeth->verifyctx;
1494}
1495
693be9a2 1496void EVP_PKEY_meth_get_encrypt(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1497 int (**pencrypt_init) (EVP_PKEY_CTX *ctx),
1498 int (**pencryptfn) (EVP_PKEY_CTX *ctx,
1499 unsigned char *out,
1500 size_t *outlen,
1501 const unsigned char *in,
1502 size_t inlen))
1503{
1504 if (pencrypt_init)
1505 *pencrypt_init = pmeth->encrypt_init;
1506 if (pencryptfn)
1507 *pencryptfn = pmeth->encrypt;
1508}
1509
693be9a2 1510void EVP_PKEY_meth_get_decrypt(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1511 int (**pdecrypt_init) (EVP_PKEY_CTX *ctx),
1512 int (**pdecrypt) (EVP_PKEY_CTX *ctx,
1513 unsigned char *out,
1514 size_t *outlen,
1515 const unsigned char *in,
1516 size_t inlen))
1517{
1518 if (pdecrypt_init)
1519 *pdecrypt_init = pmeth->decrypt_init;
1520 if (pdecrypt)
1521 *pdecrypt = pmeth->decrypt;
1522}
1523
693be9a2 1524void EVP_PKEY_meth_get_derive(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1525 int (**pderive_init) (EVP_PKEY_CTX *ctx),
1526 int (**pderive) (EVP_PKEY_CTX *ctx,
1527 unsigned char *key,
1528 size_t *keylen))
1529{
1530 if (pderive_init)
1531 *pderive_init = pmeth->derive_init;
1532 if (pderive)
1533 *pderive = pmeth->derive;
1534}
1535
693be9a2 1536void EVP_PKEY_meth_get_ctrl(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1537 int (**pctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
1538 void *p2),
1539 int (**pctrl_str) (EVP_PKEY_CTX *ctx,
1540 const char *type,
1541 const char *value))
1542{
1543 if (pctrl)
1544 *pctrl = pmeth->ctrl;
1545 if (pctrl_str)
1546 *pctrl_str = pmeth->ctrl_str;
1547}
2aee35d3 1548
2555285f
AH		 1549void EVP_PKEY_meth_get_digestsign(EVP_PKEY_METHOD *pmeth,
1550 int (**digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen,
1551 const unsigned char *tbs, size_t tbslen))
1552{
1553 if (digestsign)
1554 *digestsign = pmeth->digestsign;
1555}
1556
1557void EVP_PKEY_meth_get_digestverify(EVP_PKEY_METHOD *pmeth,
1558 int (**digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig,
1559 size_t siglen, const unsigned char *tbs,
1560 size_t tbslen))
1561{
1562 if (digestverify)
1563 *digestverify = pmeth->digestverify;
1564}
1565
693be9a2 1566void EVP_PKEY_meth_get_check(const EVP_PKEY_METHOD *pmeth,
2aee35d3
PY		 1567 int (**pcheck) (EVP_PKEY *pkey))
1568{
34f5c8b1 1569 if (pcheck != NULL)
2aee35d3
PY		 1570 *pcheck = pmeth->check;
1571}
b0004708 1572
693be9a2 1573void EVP_PKEY_meth_get_public_check(const EVP_PKEY_METHOD *pmeth,
b0004708
PY		 1574 int (**pcheck) (EVP_PKEY *pkey))
1575{
34f5c8b1 1576 if (pcheck != NULL)
b0004708
PY		 1577 *pcheck = pmeth->public_check;
1578}
1579
693be9a2 1580void EVP_PKEY_meth_get_param_check(const EVP_PKEY_METHOD *pmeth,
b0004708
PY		 1581 int (**pcheck) (EVP_PKEY *pkey))
1582{
34f5c8b1 1583 if (pcheck != NULL)
b0004708
PY		 1584 *pcheck = pmeth->param_check;
1585}
0a8fdef7
PY		 1586
1587void EVP_PKEY_meth_get_digest_custom(EVP_PKEY_METHOD *pmeth,
1588 int (**pdigest_custom) (EVP_PKEY_CTX *ctx,
1589 EVP_MD_CTX *mctx))
1590{
675f4cee 1591 if (pdigest_custom != NULL)
0a8fdef7
PY		 1592 *pdigest_custom = pmeth->digest_custom;
1593}
e683582b
SL		 1594
1595#endif /* FIPS_MODE */
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