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Fix CID 1466714 : Null pointer dereference in EVP_PKEY_CTX_ctrl() due to new call...
[thirdparty/openssl.git] / crypto / evp / pmeth_lib.c
CommitLineData
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>
ac2d58c7 24#include <openssl/kdf.h>
35aca9ec 25#include "internal/cryptlib.h"
25f2138b
DMSP		 26#include "crypto/asn1.h"
27#include "crypto/evp.h"
7165593c 28#include "crypto/dh.h"
7229a2f4 29#include "crypto/ec.h"
7165593c 30#include "internal/ffc.h"
99119000 31#include "internal/numbers.h"
390acbeb 32#include "internal/provider.h"
706457b7 33#include "evp_local.h"
0b6f3c66 34
f844f9eb 35#ifndef FIPS_MODULE
e683582b 36
86df26b3
RL		 37static int evp_pkey_ctx_store_cached_data(EVP_PKEY_CTX *ctx,
38 int keytype, int optype,
39 int cmd, const char *name,
40 const void *data, size_t data_len);
41static void evp_pkey_ctx_free_cached_data(EVP_PKEY_CTX *ctx,
42 int cmd, const char *name);
43static void evp_pkey_ctx_free_all_cached_data(EVP_PKEY_CTX *ctx);
44
19bd1fa1 45typedef const EVP_PKEY_METHOD *(*pmeth_fn)(void);
0f113f3e 46typedef int sk_cmp_fn_type(const char *const *a, const char *const *b);
5ce278a7 47
df2ee0e2 48static STACK_OF(EVP_PKEY_METHOD) *app_pkey_methods = NULL;
0b6f3c66 49
cefa762e 50/* This array needs to be in order of NIDs */
19bd1fa1 51static pmeth_fn standard_methods[] = {
e683582b 52# ifndef OPENSSL_NO_RSA
19bd1fa1 53 rsa_pkey_method,
e683582b
SL		 54# endif
55# ifndef OPENSSL_NO_DH
19bd1fa1 56 dh_pkey_method,
e683582b
SL		 57# endif
58# ifndef OPENSSL_NO_DSA
19bd1fa1 59 dsa_pkey_method,
e683582b
SL		 60# endif
61# ifndef OPENSSL_NO_EC
19bd1fa1 62 ec_pkey_method,
e683582b
SL		 63# endif
64# ifndef OPENSSL_NO_RSA
19bd1fa1 65 rsa_pss_pkey_method,
e683582b
SL		 66# endif
67# ifndef OPENSSL_NO_DH
19bd1fa1 68 dhx_pkey_method,
e683582b 69# endif
e683582b 70# ifndef OPENSSL_NO_EC
19bd1fa1
PS		 71 ecx25519_pkey_method,
72 ecx448_pkey_method,
e683582b 73# endif
e683582b 74# ifndef OPENSSL_NO_EC
19bd1fa1
PS		 75 ed25519_pkey_method,
76 ed448_pkey_method,
e683582b
SL		 77# endif
78# ifndef OPENSSL_NO_SM2
19bd1fa1 79 sm2_pkey_method,
e683582b 80# endif
0f113f3e 81};
0b6f3c66 82
19bd1fa1
PS		 83DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, pmeth_fn, pmeth_func);
84
85static int pmeth_func_cmp(const EVP_PKEY_METHOD *const *a, pmeth_fn const *b)
86{
87 return ((*a)->pkey_id - ((**b)())->pkey_id);
88}
89
90IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, pmeth_fn, pmeth_func);
babb3798 91
0f113f3e
MC		 92static int pmeth_cmp(const EVP_PKEY_METHOD *const *a,
93 const EVP_PKEY_METHOD *const *b)
94{
95 return ((*a)->pkey_id - (*b)->pkey_id);
96}
0b6f3c66 97
c9777d26 98const EVP_PKEY_METHOD *EVP_PKEY_meth_find(int type)
0f113f3e 99{
19bd1fa1 100 pmeth_fn *ret;
0f113f3e 101 EVP_PKEY_METHOD tmp;
19bd1fa1 102 const EVP_PKEY_METHOD *t = &tmp;
12a765a5 103
0f113f3e
MC		 104 tmp.pkey_id = type;
105 if (app_pkey_methods) {
106 int idx;
107 idx = sk_EVP_PKEY_METHOD_find(app_pkey_methods, &tmp);
108 if (idx >= 0)
109 return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx);
110 }
19bd1fa1
PS		 111 ret = OBJ_bsearch_pmeth_func(&t, standard_methods,
112 sizeof(standard_methods) /
113 sizeof(pmeth_fn));
12a765a5 114 if (ret == NULL || *ret == NULL)
0f113f3e 115 return NULL;
19bd1fa1 116 return (**ret)();
0f113f3e 117}
0b6f3c66 118
e683582b
SL		 119EVP_PKEY_METHOD *EVP_PKEY_meth_new(int id, int flags)
120{
121 EVP_PKEY_METHOD *pmeth;
122
123 pmeth = OPENSSL_zalloc(sizeof(*pmeth));
124 if (pmeth == NULL) {
125 EVPerr(EVP_F_EVP_PKEY_METH_NEW, ERR_R_MALLOC_FAILURE);
126 return NULL;
127 }
128
129 pmeth->pkey_id = id;
130 pmeth->flags = flags | EVP_PKEY_FLAG_DYNAMIC;
131 return pmeth;
132}
50914496 133
86df26b3
RL		 134/* Three possible states: */
135# define EVP_PKEY_STATE_UNKNOWN 0
136# define EVP_PKEY_STATE_LEGACY 1
137# define EVP_PKEY_STATE_PROVIDER 2
138
139static int evp_pkey_ctx_state(EVP_PKEY_CTX *ctx)
140{
141 if (ctx->operation == EVP_PKEY_OP_UNDEFINED)
142 return EVP_PKEY_STATE_UNKNOWN;
143
144 if ((EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
145 && ctx->op.kex.exchprovctx != NULL)
146 || (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
147 && ctx->op.sig.sigprovctx != NULL)
148 || (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
149 && ctx->op.ciph.ciphprovctx != NULL)
150 || (EVP_PKEY_CTX_IS_GEN_OP(ctx)
80f4fd18
SL		 151 && ctx->op.keymgmt.genctx != NULL)
152 || (EVP_PKEY_CTX_IS_KEM_OP(ctx)
153 && ctx->op.encap.kemprovctx != NULL))
86df26b3
RL		 154 return EVP_PKEY_STATE_PROVIDER;
155
156 return EVP_PKEY_STATE_LEGACY;
157}
158
50914496
RL		 159static void help_get_legacy_alg_type_from_keymgmt(const char *keytype,
160 void *arg)
161{
162 int *type = arg;
163
164 if (*type == NID_undef)
165 *type = evp_pkey_name2type(keytype);
166}
167
168static int get_legacy_alg_type_from_keymgmt(const EVP_KEYMGMT *keymgmt)
169{
170 int type = NID_undef;
171
172 EVP_KEYMGMT_names_do_all(keymgmt, help_get_legacy_alg_type_from_keymgmt,
173 &type);
174 return type;
175}
f844f9eb 176#endif /* FIPS_MODULE */
e683582b 177
3ee348b0
RL		 178static EVP_PKEY_CTX *int_ctx_new(OPENSSL_CTX *libctx,
179 EVP_PKEY *pkey, ENGINE *e,
4b9e90f4 180 const char *keytype, const char *propquery,
a07c17ef 181 int id)
e683582b 182
0f113f3e 183{
50914496 184 EVP_PKEY_CTX *ret = NULL;
d0ea49a8 185 const EVP_PKEY_METHOD *pmeth = NULL;
4b9e90f4 186 EVP_KEYMGMT *keymgmt = NULL;
d0ea49a8
RL		 187
188 /*
50914496 189 * If the given |pkey| is provided, we extract the keytype from its
5e5bc836 190 * keymgmt and skip over the legacy code.
982efd77 191 */
5e5bc836 192 if (pkey != NULL && evp_pkey_is_provided(pkey)) {
982efd77
RL		 193 /* If we have an engine, something went wrong somewhere... */
194 if (!ossl_assert(e == NULL))
195 return NULL;
4b9e90f4 196 keytype = evp_first_name(pkey->keymgmt->prov, pkey->keymgmt->name_id);
982efd77
RL		 197 goto common;
198 }
50914496 199
f844f9eb 200#ifndef FIPS_MODULE
50914496
RL		 201 /*
202 * TODO(3.0) This legacy code section should be removed when we stop
203 * supporting engines
204 */
d0ea49a8 205 /* BEGIN legacy */
0f113f3e 206 if (id == -1) {
50914496
RL		 207 if (pkey != NULL)
208 id = pkey->type;
209 else if (keytype != NULL)
210 id = evp_pkey_name2type(keytype);
211 if (id == NID_undef)
212 id = -1;
0f113f3e 213 }
50914496
RL		 214 /* If no ID was found here, we can only resort to find a keymgmt */
215 if (id == -1)
216 goto common;
60653e5b
RL		 217
218 /*
219 * Here, we extract what information we can for the purpose of
220 * supporting usage with implementations from providers, to make
221 * for a smooth transition from legacy stuff to provider based stuff.
222 *
223 * If an engine is given, this is entirely legacy, and we should not
224 * pretend anything else, so we only set the name when no engine is
225 * given. If both are already given, someone made a mistake, and
226 * since that can only happen internally, it's safe to make an
227 * assertion.
228 */
4b9e90f4 229 if (!ossl_assert(e == NULL || keytype == NULL))
60653e5b
RL		 230 return NULL;
231 if (e == NULL)
4b9e90f4 232 keytype = OBJ_nid2sn(id);
60653e5b 233
e683582b 234# ifndef OPENSSL_NO_ENGINE
c2976edf 235 if (e == NULL && pkey != NULL)
d19b01ad 236 e = pkey->pmeth_engine != NULL ? pkey->pmeth_engine : pkey->engine;
0f113f3e
MC		 237 /* Try to find an ENGINE which implements this method */
238 if (e) {
239 if (!ENGINE_init(e)) {
240 EVPerr(EVP_F_INT_CTX_NEW, ERR_R_ENGINE_LIB);
241 return NULL;
242 }
c2976edf 243 } else {
0f113f3e 244 e = ENGINE_get_pkey_meth_engine(id);
c2976edf 245 }
0f113f3e
MC		 246
247 /*
0d4fb843 248 * If an ENGINE handled this method look it up. Otherwise use internal
0f113f3e
MC		 249 * tables.
250 */
50914496 251 if (e != NULL)
0f113f3e 252 pmeth = ENGINE_get_pkey_meth(e, id);
50914496 253 else
e683582b 254# endif
0f113f3e 255 pmeth = EVP_PKEY_meth_find(id);
c9777d26 256
d0ea49a8 257 /* END legacy */
f844f9eb 258#endif /* FIPS_MODULE */
d0ea49a8 259 common:
4b9e90f4
RL		 260 /*
261 * If there's no engine and there's a name, we try fetching a provider
262 * implementation.
263 */
5fcb97c6 264 if (e == NULL && keytype != NULL) {
4b9e90f4 265 keymgmt = EVP_KEYMGMT_fetch(libctx, keytype, propquery);
d0b79f86 266 if (keymgmt == NULL)
50914496
RL		 267 return NULL; /* EVP_KEYMGMT_fetch() recorded an error */
268
269#ifndef FIPS_MODULE
270 /*
271 * Chase down the legacy NID, as that might be needed for diverse
272 * purposes, such as ensure that EVP_PKEY_type() can return sensible
273 * values, or that there's a better chance to "downgrade" a key when
274 * needed. We go through all keymgmt names, because the keytype
275 * that's passed to this function doesn't necessarily translate
276 * directly.
277 * TODO: Remove this when #legacy keys are gone.
278 */
279 if (keymgmt != NULL) {
280 int tmp_id = get_legacy_alg_type_from_keymgmt(keymgmt);
281
282 if (tmp_id != NID_undef) {
283 if (id == -1) {
284 id = tmp_id;
285 } else {
286 /*
287 * It really really shouldn't differ. If it still does,
288 * something is very wrong.
289 */
290 if (!ossl_assert(id == tmp_id)) {
291 EVPerr(EVP_F_INT_CTX_NEW, ERR_R_INTERNAL_ERROR);
292 EVP_KEYMGMT_free(keymgmt);
293 return NULL;
294 }
295 }
296 }
b533510f 297 }
50914496
RL		 298#endif
299 }
300
301 if (pmeth == NULL && keymgmt == NULL) {
302 EVPerr(EVP_F_INT_CTX_NEW, EVP_R_UNSUPPORTED_ALGORITHM);
303 } else {
304 ret = OPENSSL_zalloc(sizeof(*ret));
305 if (ret == NULL)
306 EVPerr(EVP_F_INT_CTX_NEW, ERR_R_MALLOC_FAILURE);
5fcb97c6 307 }
4b9e90f4 308
f844f9eb 309#if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODULE)
50914496 310 if ((ret == NULL || pmeth == NULL) && e != NULL)
7c96dbcd 311 ENGINE_finish(e);
a63bf2c5 312#endif
50914496
RL		 313
314 if (ret == NULL) {
315 EVP_KEYMGMT_free(keymgmt);
0f113f3e
MC		 316 return NULL;
317 }
50914496 318
3ee348b0 319 ret->libctx = libctx;
a07c17ef 320 ret->propquery = propquery;
4b9e90f4
RL		 321 ret->keytype = keytype;
322 ret->keymgmt = keymgmt;
50914496 323 ret->legacy_keytype = id; /* TODO: Remove when #legacy key are gone */
0f113f3e
MC		 324 ret->engine = e;
325 ret->pmeth = pmeth;
326 ret->operation = EVP_PKEY_OP_UNDEFINED;
327 ret->pkey = pkey;
a6465b3f 328 if (pkey != NULL)
03273d61 329 EVP_PKEY_up_ref(pkey);
0f113f3e 330
8b84b075 331 if (pmeth != NULL && pmeth->init != NULL) {
0f113f3e 332 if (pmeth->init(ret) <= 0) {
83b4049a 333 ret->pmeth = NULL;
0f113f3e
MC		 334 EVP_PKEY_CTX_free(ret);
335 return NULL;
336 }
337 }
338
339 return ret;
340}
341
f844f9eb 342/*- All methods below can also be used in FIPS_MODULE */
e683582b
SL		 343
344EVP_PKEY_CTX *EVP_PKEY_CTX_new_from_name(OPENSSL_CTX *libctx,
345 const char *name,
346 const char *propquery)
347{
348 return int_ctx_new(libctx, NULL, NULL, name, propquery, -1);
349}
350
2ee4a50a
MC		 351EVP_PKEY_CTX *EVP_PKEY_CTX_new_from_pkey(OPENSSL_CTX *libctx, EVP_PKEY *pkey,
352 const char *propquery)
e683582b 353{
2ee4a50a 354 return int_ctx_new(libctx, pkey, NULL, NULL, propquery, -1);
e683582b
SL		 355}
356
864b89ce
MC		 357void evp_pkey_ctx_free_old_ops(EVP_PKEY_CTX *ctx)
358{
e683582b 359 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
864b89ce
MC		 360 if (ctx->op.sig.sigprovctx != NULL && ctx->op.sig.signature != NULL)
361 ctx->op.sig.signature->freectx(ctx->op.sig.sigprovctx);
362 EVP_SIGNATURE_free(ctx->op.sig.signature);
fb1ecf85
RL		 363 ctx->op.sig.sigprovctx = NULL;
364 ctx->op.sig.signature = NULL;
62f49b90 365 } else if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
e683582b
SL		 366 if (ctx->op.kex.exchprovctx != NULL && ctx->op.kex.exchange != NULL)
367 ctx->op.kex.exchange->freectx(ctx->op.kex.exchprovctx);
368 EVP_KEYEXCH_free(ctx->op.kex.exchange);
369 ctx->op.kex.exchprovctx = NULL;
370 ctx->op.kex.exchange = NULL;
80f4fd18
SL		 371 } else if (EVP_PKEY_CTX_IS_KEM_OP(ctx)) {
372 if (ctx->op.encap.kemprovctx != NULL && ctx->op.encap.kem != NULL)
373 ctx->op.encap.kem->freectx(ctx->op.encap.kemprovctx);
374 EVP_KEM_free(ctx->op.encap.kem);
375 ctx->op.encap.kemprovctx = NULL;
376 ctx->op.encap.kem = NULL;
377 }
378 else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)) {
2c938e2e
MC		 379 if (ctx->op.ciph.ciphprovctx != NULL && ctx->op.ciph.cipher != NULL)
380 ctx->op.ciph.cipher->freectx(ctx->op.ciph.ciphprovctx);
381 EVP_ASYM_CIPHER_free(ctx->op.ciph.cipher);
382 ctx->op.ciph.ciphprovctx = NULL;
383 ctx->op.ciph.cipher = NULL;
62924755
RL		 384 } else if (EVP_PKEY_CTX_IS_GEN_OP(ctx)) {
385 if (ctx->op.keymgmt.genctx != NULL && ctx->keymgmt != NULL)
386 evp_keymgmt_gen_cleanup(ctx->keymgmt, ctx->op.keymgmt.genctx);
864b89ce
MC		 387 }
388}
389
e683582b 390void EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx)
0f113f3e 391{
e683582b
SL		 392 if (ctx == NULL)
393 return;
394 if (ctx->pmeth && ctx->pmeth->cleanup)
395 ctx->pmeth->cleanup(ctx);
b4faea50 396
e683582b 397 evp_pkey_ctx_free_old_ops(ctx);
86df26b3
RL		 398#ifndef FIPS_MODULE
399 evp_pkey_ctx_free_all_cached_data(ctx);
400#endif
e683582b 401 EVP_KEYMGMT_free(ctx->keymgmt);
0f113f3e 402
e683582b
SL		 403 EVP_PKEY_free(ctx->pkey);
404 EVP_PKEY_free(ctx->peerkey);
f844f9eb 405#if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODULE)
e683582b
SL		 406 ENGINE_finish(ctx->engine);
407#endif
408 OPENSSL_free(ctx);
0f113f3e 409}
ba30bad5 410
f844f9eb 411#ifndef FIPS_MODULE
e683582b 412
f830c68f 413void EVP_PKEY_meth_get0_info(int *ppkey_id, int *pflags,
0f113f3e
MC		 414 const EVP_PKEY_METHOD *meth)
415{
416 if (ppkey_id)
417 *ppkey_id = meth->pkey_id;
418 if (pflags)
419 *pflags = meth->flags;
420}
f830c68f
DSH		 421
422void EVP_PKEY_meth_copy(EVP_PKEY_METHOD *dst, const EVP_PKEY_METHOD *src)
0f113f3e 423{
4cbb196b
AT		 424 int pkey_id = dst->pkey_id;
425 int flags = dst->flags;
f830c68f 426
4cbb196b 427 *dst = *src;
f830c68f 428
4cbb196b
AT		 429 /* We only copy the function pointers so restore the other values */
430 dst->pkey_id = pkey_id;
431 dst->flags = flags;
0f113f3e 432}
f830c68f 433
ba30bad5 434void EVP_PKEY_meth_free(EVP_PKEY_METHOD *pmeth)
0f113f3e
MC		 435{
436 if (pmeth && (pmeth->flags & EVP_PKEY_FLAG_DYNAMIC))
437 OPENSSL_free(pmeth);
438}
ba30bad5 439
f5cda4cb 440EVP_PKEY_CTX *EVP_PKEY_CTX_new(EVP_PKEY *pkey, ENGINE *e)
0f113f3e 441{
3ee348b0 442 return int_ctx_new(NULL, pkey, e, NULL, NULL, -1);
0f113f3e 443}
f5cda4cb
DSH		 444
445EVP_PKEY_CTX *EVP_PKEY_CTX_new_id(int id, ENGINE *e)
0f113f3e 446{
3ee348b0 447 return int_ctx_new(NULL, NULL, e, NULL, NULL, id);
a07c17ef
RL		 448}
449
9fdcc21f 450EVP_PKEY_CTX *EVP_PKEY_CTX_dup(const EVP_PKEY_CTX *pctx)
0f113f3e
MC		 451{
452 EVP_PKEY_CTX *rctx;
ff64702b
MC		 453
454 if (((pctx->pmeth == NULL) || (pctx->pmeth->copy == NULL))
864b89ce
MC		 455 && ((EVP_PKEY_CTX_IS_DERIVE_OP(pctx)
456 && pctx->op.kex.exchprovctx == NULL)
457 || (EVP_PKEY_CTX_IS_SIGNATURE_OP(pctx)
458 && pctx->op.sig.sigprovctx == NULL)))
0f113f3e 459 return NULL;
e683582b 460# ifndef OPENSSL_NO_ENGINE
0f113f3e
MC		 461 /* Make sure it's safe to copy a pkey context using an ENGINE */
462 if (pctx->engine && !ENGINE_init(pctx->engine)) {
463 EVPerr(EVP_F_EVP_PKEY_CTX_DUP, ERR_R_ENGINE_LIB);
464 return 0;
465 }
e683582b 466# endif
ff64702b 467 rctx = OPENSSL_zalloc(sizeof(*rctx));
3484236d
F		 468 if (rctx == NULL) {
469 EVPerr(EVP_F_EVP_PKEY_CTX_DUP, ERR_R_MALLOC_FAILURE);
0f113f3e 470 return NULL;
3484236d 471 }
8bdcef40 472
ff64702b
MC		 473 if (pctx->pkey != NULL)
474 EVP_PKEY_up_ref(pctx->pkey);
475 rctx->pkey = pctx->pkey;
476 rctx->operation = pctx->operation;
3ee348b0 477 rctx->libctx = pctx->libctx;
f23bc0b7 478 rctx->keytype = pctx->keytype;
a07c17ef 479 rctx->propquery = pctx->propquery;
ff64702b 480
864b89ce
MC		 481 if (EVP_PKEY_CTX_IS_DERIVE_OP(pctx)) {
482 if (pctx->op.kex.exchange != NULL) {
483 rctx->op.kex.exchange = pctx->op.kex.exchange;
484 if (!EVP_KEYEXCH_up_ref(rctx->op.kex.exchange)) {
485 OPENSSL_free(rctx);
486 return NULL;
487 }
ff64702b 488 }
864b89ce
MC		 489 if (pctx->op.kex.exchprovctx != NULL) {
490 if (!ossl_assert(pctx->op.kex.exchange != NULL))
491 return NULL;
492 rctx->op.kex.exchprovctx
493 = pctx->op.kex.exchange->dupctx(pctx->op.kex.exchprovctx);
494 if (rctx->op.kex.exchprovctx == NULL) {
495 EVP_KEYEXCH_free(rctx->op.kex.exchange);
496 OPENSSL_free(rctx);
497 return NULL;
498 }
499 return rctx;
500 }
501 } else if (EVP_PKEY_CTX_IS_SIGNATURE_OP(pctx)) {
502 if (pctx->op.sig.signature != NULL) {
503 rctx->op.sig.signature = pctx->op.sig.signature;
504 if (!EVP_SIGNATURE_up_ref(rctx->op.sig.signature)) {
505 OPENSSL_free(rctx);
506 return NULL;
507 }
508 }
509 if (pctx->op.sig.sigprovctx != NULL) {
510 if (!ossl_assert(pctx->op.sig.signature != NULL))
511 return NULL;
512 rctx->op.sig.sigprovctx
513 = pctx->op.sig.signature->dupctx(pctx->op.sig.sigprovctx);
514 if (rctx->op.sig.sigprovctx == NULL) {
515 EVP_SIGNATURE_free(rctx->op.sig.signature);
516 OPENSSL_free(rctx);
517 return NULL;
518 }
519 return rctx;
ff64702b 520 }
2c938e2e
MC		 521 } else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(pctx)) {
522 if (pctx->op.ciph.cipher != NULL) {
523 rctx->op.ciph.cipher = pctx->op.ciph.cipher;
524 if (!EVP_ASYM_CIPHER_up_ref(rctx->op.ciph.cipher)) {
525 OPENSSL_free(rctx);
526 return NULL;
527 }
528 }
529 if (pctx->op.ciph.ciphprovctx != NULL) {
530 if (!ossl_assert(pctx->op.ciph.cipher != NULL))
531 return NULL;
532 rctx->op.ciph.ciphprovctx
533 = pctx->op.ciph.cipher->dupctx(pctx->op.ciph.ciphprovctx);
534 if (rctx->op.ciph.ciphprovctx == NULL) {
535 EVP_ASYM_CIPHER_free(rctx->op.ciph.cipher);
536 OPENSSL_free(rctx);
537 return NULL;
538 }
539 return rctx;
540 }
80f4fd18
SL		 541 } else if (EVP_PKEY_CTX_IS_KEM_OP(pctx)) {
542 if (pctx->op.encap.kem != NULL) {
543 rctx->op.encap.kem = pctx->op.encap.kem;
544 if (!EVP_KEM_up_ref(rctx->op.encap.kem)) {
545 OPENSSL_free(rctx);
546 return NULL;
547 }
548 }
549 if (pctx->op.encap.kemprovctx != NULL) {
550 if (!ossl_assert(pctx->op.encap.kem != NULL))
551 return NULL;
552 rctx->op.encap.kemprovctx
553 = pctx->op.encap.kem->dupctx(pctx->op.encap.kemprovctx);
554 if (rctx->op.encap.kemprovctx == NULL) {
555 EVP_KEM_free(rctx->op.encap.kem);
556 OPENSSL_free(rctx);
557 return NULL;
558 }
559 return rctx;
560 }
ff64702b
MC		 561 }
562
0f113f3e 563 rctx->pmeth = pctx->pmeth;
e683582b 564# ifndef OPENSSL_NO_ENGINE
0f113f3e 565 rctx->engine = pctx->engine;
e683582b 566# endif
8bdcef40 567
0f113f3e 568 if (pctx->peerkey)
03273d61 569 EVP_PKEY_up_ref(pctx->peerkey);
0f113f3e 570 rctx->peerkey = pctx->peerkey;
8bdcef40 571
0f113f3e
MC		 572 if (pctx->pmeth->copy(rctx, pctx) > 0)
573 return rctx;
8bdcef40 574
83b4049a 575 rctx->pmeth = NULL;
0f113f3e
MC		 576 EVP_PKEY_CTX_free(rctx);
577 return NULL;
8bdcef40 578
0f113f3e 579}
8bdcef40 580
ba30bad5 581int EVP_PKEY_meth_add0(const EVP_PKEY_METHOD *pmeth)
0f113f3e
MC		 582{
583 if (app_pkey_methods == NULL) {
584 app_pkey_methods = sk_EVP_PKEY_METHOD_new(pmeth_cmp);
3484236d
F		 585 if (app_pkey_methods == NULL){
586 EVPerr(EVP_F_EVP_PKEY_METH_ADD0, ERR_R_MALLOC_FAILURE);
0f113f3e 587 return 0;
3484236d 588 }
0f113f3e 589 }
3484236d
F		 590 if (!sk_EVP_PKEY_METHOD_push(app_pkey_methods, pmeth)) {
591 EVPerr(EVP_F_EVP_PKEY_METH_ADD0, ERR_R_MALLOC_FAILURE);
0f113f3e 592 return 0;
3484236d 593 }
0f113f3e
MC		 594 sk_EVP_PKEY_METHOD_sort(app_pkey_methods);
595 return 1;
596}
ba30bad5 597
0822e89a
PY		 598void evp_app_cleanup_int(void)
599{
600 if (app_pkey_methods != NULL)
601 sk_EVP_PKEY_METHOD_pop_free(app_pkey_methods, EVP_PKEY_meth_free);
602}
603
604int EVP_PKEY_meth_remove(const EVP_PKEY_METHOD *pmeth)
605{
606 const EVP_PKEY_METHOD *ret;
607
608 ret = sk_EVP_PKEY_METHOD_delete_ptr(app_pkey_methods, pmeth);
609
610 return ret == NULL ? 0 : 1;
611}
612
48ed9c23
DSH		 613size_t EVP_PKEY_meth_get_count(void)
614{
615 size_t rv = OSSL_NELEM(standard_methods);
616
617 if (app_pkey_methods)
618 rv += sk_EVP_PKEY_METHOD_num(app_pkey_methods);
619 return rv;
620}
621
622const EVP_PKEY_METHOD *EVP_PKEY_meth_get0(size_t idx)
623{
624 if (idx < OSSL_NELEM(standard_methods))
19bd1fa1 625 return (standard_methods[idx])();
48ed9c23
DSH		 626 if (app_pkey_methods == NULL)
627 return NULL;
628 idx -= OSSL_NELEM(standard_methods);
629 if (idx >= (size_t)sk_EVP_PKEY_METHOD_num(app_pkey_methods))
630 return NULL;
631 return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx);
632}
e683582b 633#endif
48ed9c23 634
e683582b 635int EVP_PKEY_CTX_set_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
0f113f3e 636{
e683582b
SL		 637 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
638 && ctx->op.kex.exchprovctx != NULL
639 && ctx->op.kex.exchange != NULL
640 && ctx->op.kex.exchange->set_ctx_params != NULL)
641 return ctx->op.kex.exchange->set_ctx_params(ctx->op.kex.exchprovctx,
642 params);
643 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
644 && ctx->op.sig.sigprovctx != NULL
645 && ctx->op.sig.signature != NULL
646 && ctx->op.sig.signature->set_ctx_params != NULL)
647 return ctx->op.sig.signature->set_ctx_params(ctx->op.sig.sigprovctx,
648 params);
649 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
650 && ctx->op.ciph.ciphprovctx != NULL
651 && ctx->op.ciph.cipher != NULL
652 && ctx->op.ciph.cipher->set_ctx_params != NULL)
653 return ctx->op.ciph.cipher->set_ctx_params(ctx->op.ciph.ciphprovctx,
654 params);
62924755
RL		 655 if (EVP_PKEY_CTX_IS_GEN_OP(ctx)
656 && ctx->op.keymgmt.genctx != NULL
657 && ctx->keymgmt != NULL
658 && ctx->keymgmt->gen_set_params != NULL)
659 return evp_keymgmt_gen_set_params(ctx->keymgmt, ctx->op.keymgmt.genctx,
660 params);
80f4fd18
SL		 661 if (EVP_PKEY_CTX_IS_KEM_OP(ctx)
662 && ctx->op.encap.kemprovctx != NULL
663 && ctx->op.encap.kem != NULL
664 && ctx->op.encap.kem->set_ctx_params != NULL)
665 return ctx->op.encap.kem->set_ctx_params(ctx->op.encap.kemprovctx,
666 params);
e683582b 667 return 0;
0f113f3e 668}
5da98aa6 669
9c45222d
MC		 670int EVP_PKEY_CTX_get_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
671{
4fe54d67
NT		 672 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
673 && ctx->op.kex.exchprovctx != NULL
674 && ctx->op.kex.exchange != NULL
675 && ctx->op.kex.exchange->get_ctx_params != NULL)
676 return ctx->op.kex.exchange->get_ctx_params(ctx->op.kex.exchprovctx,
677 params);
864b89ce
MC		 678 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
679 && ctx->op.sig.sigprovctx != NULL
680 && ctx->op.sig.signature != NULL
681 && ctx->op.sig.signature->get_ctx_params != NULL)
682 return ctx->op.sig.signature->get_ctx_params(ctx->op.sig.sigprovctx,
683 params);
2c938e2e
MC		 684 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
685 && ctx->op.ciph.ciphprovctx != NULL
686 && ctx->op.ciph.cipher != NULL
687 && ctx->op.ciph.cipher->get_ctx_params != NULL)
688 return ctx->op.ciph.cipher->get_ctx_params(ctx->op.ciph.ciphprovctx,
689 params);
80f4fd18
SL		 690 if (EVP_PKEY_CTX_IS_KEM_OP(ctx)
691 && ctx->op.encap.kemprovctx != NULL
692 && ctx->op.encap.kem != NULL
693 && ctx->op.encap.kem->get_ctx_params != NULL)
694 return ctx->op.encap.kem->get_ctx_params(ctx->op.encap.kemprovctx,
695 params);
9c45222d
MC		 696 return 0;
697}
698
11a1b341 699#ifndef FIPS_MODULE
9c45222d
MC		 700const OSSL_PARAM *EVP_PKEY_CTX_gettable_params(EVP_PKEY_CTX *ctx)
701{
18ec26ba
P		 702 void *provctx;
703
4fe54d67
NT		 704 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
705 && ctx->op.kex.exchange != NULL
18ec26ba
P		 706 && ctx->op.kex.exchange->gettable_ctx_params != NULL) {
707 provctx = ossl_provider_ctx(EVP_KEYEXCH_provider(ctx->op.kex.exchange));
708 return ctx->op.kex.exchange->gettable_ctx_params(provctx);
709 }
864b89ce
MC		 710 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
711 && ctx->op.sig.signature != NULL
18ec26ba
P		 712 && ctx->op.sig.signature->gettable_ctx_params != NULL) {
713 provctx = ossl_provider_ctx(
714 EVP_SIGNATURE_provider(ctx->op.sig.signature));
715 return ctx->op.sig.signature->gettable_ctx_params(provctx);
716 }
2c938e2e
MC		 717 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
718 && ctx->op.ciph.cipher != NULL
18ec26ba
P		 719 && ctx->op.ciph.cipher->gettable_ctx_params != NULL) {
720 provctx = ossl_provider_ctx(
721 EVP_ASYM_CIPHER_provider(ctx->op.ciph.cipher));
722 return ctx->op.ciph.cipher->gettable_ctx_params(provctx);
723 }
80f4fd18
SL		 724 if (EVP_PKEY_CTX_IS_KEM_OP(ctx)
725 && ctx->op.encap.kem != NULL
726 && ctx->op.encap.kem->gettable_ctx_params != NULL) {
727 provctx = ossl_provider_ctx(EVP_KEM_provider(ctx->op.encap.kem));
728 return ctx->op.encap.kem->gettable_ctx_params(provctx);
729 }
9c45222d
MC		 730 return NULL;
731}
732
9c45222d
MC		 733const OSSL_PARAM *EVP_PKEY_CTX_settable_params(EVP_PKEY_CTX *ctx)
734{
18ec26ba
P		 735 void *provctx;
736
864b89ce
MC		 737 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
738 && ctx->op.kex.exchange != NULL
18ec26ba
P		 739 && ctx->op.kex.exchange->settable_ctx_params != NULL) {
740 provctx = ossl_provider_ctx(EVP_KEYEXCH_provider(ctx->op.kex.exchange));
741 return ctx->op.kex.exchange->settable_ctx_params(provctx);
742 }
864b89ce
MC		 743 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
744 && ctx->op.sig.signature != NULL
18ec26ba
P		 745 && ctx->op.sig.signature->settable_ctx_params != NULL) {
746 provctx = ossl_provider_ctx(
747 EVP_SIGNATURE_provider(ctx->op.sig.signature));
748 return ctx->op.sig.signature->settable_ctx_params(provctx);
749 }
2c938e2e
MC		 750 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
751 && ctx->op.ciph.cipher != NULL
18ec26ba
P		 752 && ctx->op.ciph.cipher->settable_ctx_params != NULL) {
753 provctx = ossl_provider_ctx(
754 EVP_ASYM_CIPHER_provider(ctx->op.ciph.cipher));
755 return ctx->op.ciph.cipher->settable_ctx_params(provctx);
756 }
62924755 757 if (EVP_PKEY_CTX_IS_GEN_OP(ctx)
5e77b79a 758 && ctx->keymgmt != NULL)
e3efe7a5 759 return EVP_KEYMGMT_gen_settable_params(ctx->keymgmt);
80f4fd18
SL		 760 if (EVP_PKEY_CTX_IS_KEM_OP(ctx)
761 && ctx->op.encap.kem != NULL
762 && ctx->op.encap.kem->settable_ctx_params != NULL) {
763 provctx = ossl_provider_ctx(EVP_KEM_provider(ctx->op.encap.kem));
764 return ctx->op.encap.kem->settable_ctx_params(provctx);
765 }
9c45222d
MC		 766 return NULL;
767}
768
4fe54d67
NT		 769/*
770 * Internal helpers for stricter EVP_PKEY_CTX_{set,get}_params().
771 *
772 * Return 1 on success, 0 or negative for errors.
773 *
774 * In particular they return -2 if any of the params is not supported.
775 *
f844f9eb 776 * They are not available in FIPS_MODULE as they depend on
4fe54d67
NT		 777 * - EVP_PKEY_CTX_{get,set}_params()
778 * - EVP_PKEY_CTX_{gettable,settable}_params()
779 *
780 */
781int evp_pkey_ctx_set_params_strict(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
782{
783 const OSSL_PARAM *p;
784
785 if (ctx == NULL || params == NULL)
786 return 0;
787
788 for (p = params; p->key != NULL; p++) {
789 /* Check the ctx actually understands this parameter */
790 if (OSSL_PARAM_locate_const(EVP_PKEY_CTX_settable_params(ctx),
791 p->key) == NULL )
792 return -2;
793 }
794
795 return EVP_PKEY_CTX_set_params(ctx, params);
796}
797
798int evp_pkey_ctx_get_params_strict(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
799{
800 const OSSL_PARAM *p;
801
802 if (ctx == NULL || params == NULL)
803 return 0;
804
805 for (p = params; p->key != NULL; p++ ) {
806 /* Check the ctx actually understands this parameter */
807 if (OSSL_PARAM_locate_const(EVP_PKEY_CTX_gettable_params(ctx),
808 p->key) == NULL )
809 return -2;
810 }
811
812 return EVP_PKEY_CTX_get_params(ctx, params);
813}
814
e683582b 815# ifndef OPENSSL_NO_DH
35aca9ec
MC		 816int EVP_PKEY_CTX_set_dh_pad(EVP_PKEY_CTX *ctx, int pad)
817{
818 OSSL_PARAM dh_pad_params[2];
1c3ace68 819 unsigned int upad = pad;
35aca9ec 820
864b89ce
MC		 821 /* We use EVP_PKEY_CTX_ctrl return values */
822 if (ctx == NULL || !EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
823 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
824 return -2;
825 }
826
35aca9ec 827 /* TODO(3.0): Remove this eventually when no more legacy */
864b89ce 828 if (ctx->op.kex.exchprovctx == NULL)
35aca9ec
MC		 829 return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DH, EVP_PKEY_OP_DERIVE,
830 EVP_PKEY_CTRL_DH_PAD, pad, NULL);
831
1c3ace68 832 dh_pad_params[0] = OSSL_PARAM_construct_uint(OSSL_EXCHANGE_PARAM_PAD, &upad);
35aca9ec
MC		 833 dh_pad_params[1] = OSSL_PARAM_construct_end();
834
835 return EVP_PKEY_CTX_set_params(ctx, dh_pad_params);
836}
e683582b 837# endif
35aca9ec 838
9c45222d
MC		 839int EVP_PKEY_CTX_get_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD **md)
840{
ac2d58c7 841 OSSL_PARAM sig_md_params[2], *p = sig_md_params;
9c45222d
MC		 842 /* 80 should be big enough */
843 char name[80] = "";
844 const EVP_MD *tmp;
845
864b89ce 846 if (ctx == NULL || !EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
9c45222d
MC		 847 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
848 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
849 return -2;
850 }
851
852 /* TODO(3.0): Remove this eventually when no more legacy */
864b89ce 853 if (ctx->op.sig.sigprovctx == NULL)
9c45222d
MC		 854 return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG,
855 EVP_PKEY_CTRL_GET_MD, 0, (void *)(md));
856
857 *p++ = OSSL_PARAM_construct_utf8_string(OSSL_SIGNATURE_PARAM_DIGEST,
858 name,
859 sizeof(name));
ac2d58c7 860 *p = OSSL_PARAM_construct_end();
9c45222d
MC		 861
862 if (!EVP_PKEY_CTX_get_params(ctx, sig_md_params))
863 return 0;
864
7606bed9 865 tmp = evp_get_digestbyname_ex(ctx->libctx, name);
9c45222d
MC		 866 if (tmp == NULL)
867 return 0;
868
869 *md = tmp;
870
871 return 1;
872}
873
05d2f72e
MC		 874static int evp_pkey_ctx_set_md(EVP_PKEY_CTX *ctx, const EVP_MD *md,
875 int fallback, const char *param, int op,
876 int ctrl)
4889dadc 877{
05d2f72e 878 OSSL_PARAM md_params[2], *p = md_params;
4889dadc
MC		 879 const char *name;
880
05d2f72e 881 if (ctx == NULL || (ctx->operation & op) == 0) {
9c45222d
MC		 882 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
883 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
884 return -2;
885 }
886
4889dadc 887 /* TODO(3.0): Remove this eventually when no more legacy */
05d2f72e
MC		 888 if (fallback)
889 return EVP_PKEY_CTX_ctrl(ctx, -1, op, ctrl, 0, (void *)(md));
4889dadc 890
9c45222d
MC		 891 if (md == NULL) {
892 name = "";
9c45222d 893 } else {
9c45222d
MC		 894 name = EVP_MD_name(md);
895 }
4889dadc 896
05d2f72e 897 *p++ = OSSL_PARAM_construct_utf8_string(param,
9c45222d
MC		 898 /*
899 * Cast away the const. This is read
900 * only so should be safe
901 */
8b6ffd40 902 (char *)name, 0);
ac2d58c7 903 *p = OSSL_PARAM_construct_end();
4889dadc 904
05d2f72e
MC		 905 return EVP_PKEY_CTX_set_params(ctx, md_params);
906}
907
908int EVP_PKEY_CTX_set_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD *md)
909{
910 return evp_pkey_ctx_set_md(ctx, md, ctx->op.sig.sigprovctx == NULL,
911 OSSL_SIGNATURE_PARAM_DIGEST,
912 EVP_PKEY_OP_TYPE_SIG, EVP_PKEY_CTRL_MD);
4889dadc
MC		 913}
914
ac2d58c7
MC		 915int EVP_PKEY_CTX_set_tls1_prf_md(EVP_PKEY_CTX *ctx, const EVP_MD *md)
916{
05d2f72e
MC		 917 return evp_pkey_ctx_set_md(ctx, md, ctx->op.kex.exchprovctx == NULL,
918 OSSL_KDF_PARAM_DIGEST,
919 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_TLS_MD);
920}
921
922static int evp_pkey_ctx_set1_octet_string(EVP_PKEY_CTX *ctx, int fallback,
923 const char *param, int op, int ctrl,
924 const unsigned char *data,
925 int datalen)
926{
927 OSSL_PARAM octet_string_params[2], *p = octet_string_params;
ac2d58c7 928
5d51925a 929 if (ctx == NULL || (ctx->operation & op) == 0) {
ac2d58c7
MC		 930 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
931 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
932 return -2;
933 }
934
935 /* TODO(3.0): Remove this eventually when no more legacy */
05d2f72e
MC		 936 if (fallback)
937 return EVP_PKEY_CTX_ctrl(ctx, -1, op, ctrl, datalen, (void *)(data));
ac2d58c7 938
05d2f72e
MC		 939 if (datalen < 0) {
940 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_LENGTH);
941 return 0;
ac2d58c7
MC		 942 }
943
05d2f72e 944 *p++ = OSSL_PARAM_construct_octet_string(param,
ac2d58c7
MC		 945 /*
946 * Cast away the const. This is read
947 * only so should be safe
948 */
05d2f72e
MC		 949 (unsigned char *)data,
950 (size_t)datalen);
194de849 951 *p = OSSL_PARAM_construct_end();
ac2d58c7 952
05d2f72e 953 return EVP_PKEY_CTX_set_params(ctx, octet_string_params);
ac2d58c7
MC		 954}
955
956int EVP_PKEY_CTX_set1_tls1_prf_secret(EVP_PKEY_CTX *ctx,
957 const unsigned char *sec, int seclen)
958{
05d2f72e
MC		 959 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.exchprovctx == NULL,
960 OSSL_KDF_PARAM_SECRET,
961 EVP_PKEY_OP_DERIVE,
962 EVP_PKEY_CTRL_TLS_SECRET,
963 sec, seclen);
964}
ac2d58c7 965
05d2f72e
MC		 966int EVP_PKEY_CTX_add1_tls1_prf_seed(EVP_PKEY_CTX *ctx,
967 const unsigned char *seed, int seedlen)
968{
969 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.exchprovctx == NULL,
970 OSSL_KDF_PARAM_SEED,
971 EVP_PKEY_OP_DERIVE,
972 EVP_PKEY_CTRL_TLS_SEED,
973 seed, seedlen);
974}
ac2d58c7 975
05d2f72e
MC		 976int EVP_PKEY_CTX_set_hkdf_md(EVP_PKEY_CTX *ctx, const EVP_MD *md)
977{
978 return evp_pkey_ctx_set_md(ctx, md, ctx->op.kex.exchprovctx == NULL,
979 OSSL_KDF_PARAM_DIGEST,
980 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_HKDF_MD);
981}
ac2d58c7 982
05d2f72e
MC		 983int EVP_PKEY_CTX_set1_hkdf_salt(EVP_PKEY_CTX *ctx,
984 const unsigned char *salt, int saltlen)
985{
986 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.exchprovctx == NULL,
987 OSSL_KDF_PARAM_SALT,
988 EVP_PKEY_OP_DERIVE,
989 EVP_PKEY_CTRL_HKDF_SALT,
990 salt, saltlen);
991}
ac2d58c7 992
05d2f72e
MC		 993int EVP_PKEY_CTX_set1_hkdf_key(EVP_PKEY_CTX *ctx,
994 const unsigned char *key, int keylen)
995{
996 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.exchprovctx == NULL,
997 OSSL_KDF_PARAM_KEY,
998 EVP_PKEY_OP_DERIVE,
999 EVP_PKEY_CTRL_HKDF_KEY,
1000 key, keylen);
1001}
ac2d58c7 1002
05d2f72e
MC		 1003int EVP_PKEY_CTX_add1_hkdf_info(EVP_PKEY_CTX *ctx,
1004 const unsigned char *info, int infolen)
1005{
1006 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.exchprovctx == NULL,
1007 OSSL_KDF_PARAM_INFO,
1008 EVP_PKEY_OP_DERIVE,
1009 EVP_PKEY_CTRL_HKDF_INFO,
1010 info, infolen);
ac2d58c7
MC		 1011}
1012
05d2f72e 1013int EVP_PKEY_CTX_hkdf_mode(EVP_PKEY_CTX *ctx, int mode)
ac2d58c7 1014{
05d2f72e 1015 OSSL_PARAM int_params[2], *p = int_params;
ac2d58c7
MC		 1016
1017 if (ctx == NULL || !EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
1018 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1019 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
1020 return -2;
1021 }
1022
1023 /* TODO(3.0): Remove this eventually when no more legacy */
1024 if (ctx->op.kex.exchprovctx == NULL)
1025 return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_DERIVE,
05d2f72e
MC		 1026 EVP_PKEY_CTRL_HKDF_MODE, mode, NULL);
1027
ac2d58c7 1028
05d2f72e
MC		 1029 if (mode < 0) {
1030 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_VALUE);
ac2d58c7
MC		 1031 return 0;
1032 }
1033
05d2f72e 1034 *p++ = OSSL_PARAM_construct_int(OSSL_KDF_PARAM_MODE, &mode);
194de849 1035 *p = OSSL_PARAM_construct_end();
ac2d58c7 1036
05d2f72e 1037 return EVP_PKEY_CTX_set_params(ctx, int_params);
ac2d58c7
MC		 1038}
1039
194de849
MC		 1040int EVP_PKEY_CTX_set1_pbe_pass(EVP_PKEY_CTX *ctx, const char *pass,
1041 int passlen)
1042{
1043 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.exchprovctx == NULL,
1044 OSSL_KDF_PARAM_PASSWORD,
1045 EVP_PKEY_OP_DERIVE,
1046 EVP_PKEY_CTRL_PASS,
1047 (const unsigned char *)pass, passlen);
1048}
1049
1050int EVP_PKEY_CTX_set1_scrypt_salt(EVP_PKEY_CTX *ctx,
1051 const unsigned char *salt, int saltlen)
1052{
1053 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.exchprovctx == NULL,
1054 OSSL_KDF_PARAM_SALT,
1055 EVP_PKEY_OP_DERIVE,
1056 EVP_PKEY_CTRL_SCRYPT_SALT,
1057 salt, saltlen);
1058}
1059
1060static int evp_pkey_ctx_set_uint64(EVP_PKEY_CTX *ctx, const char *param,
1061 int op, int ctrl, uint64_t val)
1062{
1063 OSSL_PARAM uint64_params[2], *p = uint64_params;
1064
1065 if (ctx == NULL || !EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
1066 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1067 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
1068 return -2;
1069 }
1070
1071 /* TODO(3.0): Remove this eventually when no more legacy */
1072 if (ctx->op.kex.exchprovctx == NULL)
1073 return EVP_PKEY_CTX_ctrl_uint64(ctx, -1, op, ctrl, val);
1074
1075 *p++ = OSSL_PARAM_construct_uint64(param, &val);
1076 *p = OSSL_PARAM_construct_end();
1077
1078 return EVP_PKEY_CTX_set_params(ctx, uint64_params);
1079}
1080
1081int EVP_PKEY_CTX_set_scrypt_N(EVP_PKEY_CTX *ctx, uint64_t n)
1082{
1083 return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_N,
1084 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_SCRYPT_N,
1085 n);
1086}
1087
1088int EVP_PKEY_CTX_set_scrypt_r(EVP_PKEY_CTX *ctx, uint64_t r)
1089{
1090 return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_R,
1091 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_SCRYPT_R,
1092 r);
1093}
1094
1095int EVP_PKEY_CTX_set_scrypt_p(EVP_PKEY_CTX *ctx, uint64_t p)
1096{
1097 return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_P,
1098 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_SCRYPT_P,
1099 p);
1100}
1101
1102int EVP_PKEY_CTX_set_scrypt_maxmem_bytes(EVP_PKEY_CTX *ctx,
1103 uint64_t maxmem_bytes)
1104{
1105 return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_MAXMEM,
1106 EVP_PKEY_OP_DERIVE,
1107 EVP_PKEY_CTRL_SCRYPT_MAXMEM_BYTES,
1108 maxmem_bytes);
1109}
1110
5d51925a
MC		 1111int EVP_PKEY_CTX_set_mac_key(EVP_PKEY_CTX *ctx, const unsigned char *key,
1112 int keylen)
1113{
1114 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.keymgmt.genctx == NULL,
1115 OSSL_PKEY_PARAM_PRIV_KEY,
1116 EVP_PKEY_OP_KEYGEN,
1117 EVP_PKEY_CTRL_SET_MAC_KEY,
1118 key, keylen);
1119}
1120
80f4fd18
SL		 1121int EVP_PKEY_CTX_set_kem_op(EVP_PKEY_CTX *ctx, const char *op)
1122{
1123 OSSL_PARAM params[2], *p = params;
1124
1125 if (ctx == NULL || op == NULL) {
1126 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_VALUE);
1127 return 0;
1128 }
1129 if (!EVP_PKEY_CTX_IS_KEM_OP(ctx)) {
1130 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1131 return -2;
1132 }
1133 *p++ = OSSL_PARAM_construct_utf8_string(OSSL_KEM_PARAM_OPERATION,
1134 (char *)op, 0);
1135 *p = OSSL_PARAM_construct_end();
1136 return EVP_PKEY_CTX_set_params(ctx, params);
1137}
1138
8d6481f5
RL		 1139int evp_pkey_ctx_set1_id_prov(EVP_PKEY_CTX *ctx, const void *id, int len)
1140{
1141 OSSL_PARAM params[2], *p = params;
1142 int ret;
1143
1144 if (!EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
1145 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1146 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
1147 return -2;
1148 }
1149
1150 *p++ = OSSL_PARAM_construct_octet_string(OSSL_PKEY_PARAM_DIST_ID,
1151 /*
1152 * Cast away the const. This is
1153 * read only so should be safe
1154 */
1155 (void *)id, (size_t)len);
1156 *p++ = OSSL_PARAM_construct_end();
1157
1158 ret = evp_pkey_ctx_set_params_strict(ctx, params);
1159 if (ret == -2)
1160 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1161 return ret;
1162}
1163
1164int EVP_PKEY_CTX_set1_id(EVP_PKEY_CTX *ctx, const void *id, int len)
1165{
1166 return EVP_PKEY_CTX_ctrl(ctx, -1, -1,
1167 EVP_PKEY_CTRL_SET1_ID, (int)len, (void*)(id));
1168}
1169
1170static int get1_id_data(EVP_PKEY_CTX *ctx, void *id, size_t *id_len)
1171{
1172 int ret;
1173 void *tmp_id = NULL;
1174 OSSL_PARAM params[2], *p = params;
1175
1176 if (!EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
1177 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1178 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
1179 return -2;
1180 }
1181
1182 *p++ = OSSL_PARAM_construct_octet_ptr(OSSL_PKEY_PARAM_DIST_ID,
1183 &tmp_id, 0);
1184 *p++ = OSSL_PARAM_construct_end();
1185
1186 ret = evp_pkey_ctx_get_params_strict(ctx, params);
1187 if (ret == -2) {
1188 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1189 } else if (ret > 0) {
1190 size_t tmp_id_len = params[0].return_size;
1191
1192 if (id != NULL)
1193 memcpy(id, tmp_id, tmp_id_len);
1194 if (id_len != NULL)
1195 *id_len = tmp_id_len;
1196 }
1197 return ret;
1198}
1199
1200int evp_pkey_ctx_get1_id_prov(EVP_PKEY_CTX *ctx, void *id)
1201{
1202 return get1_id_data(ctx, id, NULL);
1203}
1204
1205int evp_pkey_ctx_get1_id_len_prov(EVP_PKEY_CTX *ctx, size_t *id_len)
1206{
1207 return get1_id_data(ctx, NULL, id_len);
1208}
1209
1210int EVP_PKEY_CTX_get1_id(EVP_PKEY_CTX *ctx, void *id)
1211{
1212 return EVP_PKEY_CTX_ctrl(ctx, -1, -1, EVP_PKEY_CTRL_GET1_ID, 0, (void*)id);
1213}
1214
1215int EVP_PKEY_CTX_get1_id_len(EVP_PKEY_CTX *ctx, size_t *id_len)
1216{
1217 return EVP_PKEY_CTX_ctrl(ctx, -1, -1,
1218 EVP_PKEY_CTRL_GET1_ID_LEN, 0, (void*)id_len);
1219}
1220
35aca9ec
MC		 1221static int legacy_ctrl_to_param(EVP_PKEY_CTX *ctx, int keytype, int optype,
1222 int cmd, int p1, void *p2)
1223{
86df26b3
RL		 1224 switch (cmd) {
1225 case EVP_PKEY_CTRL_SET1_ID:
1226 return evp_pkey_ctx_set1_id_prov(ctx, p2, p1);
1227 case EVP_PKEY_CTRL_GET1_ID:
1228 return evp_pkey_ctx_get1_id_prov(ctx, p2);
1229 case EVP_PKEY_CTRL_GET1_ID_LEN:
1230 return evp_pkey_ctx_get1_id_len_prov(ctx, p2);
1231 }
1232
e683582b 1233# ifndef OPENSSL_NO_DH
116d2510
SL		 1234 if (keytype == EVP_PKEY_DHX) {
1235 switch (cmd) {
1236 case EVP_PKEY_CTRL_DH_KDF_TYPE:
1237 return EVP_PKEY_CTX_set_dh_kdf_type(ctx, p1);
1238 case EVP_PKEY_CTRL_DH_KDF_MD:
1239 return EVP_PKEY_CTX_set_dh_kdf_md(ctx, p2);
1240 case EVP_PKEY_CTRL_DH_KDF_OUTLEN:
1241 return EVP_PKEY_CTX_set_dh_kdf_outlen(ctx, p1);
1242 case EVP_PKEY_CTRL_DH_KDF_UKM:
1243 return EVP_PKEY_CTX_set0_dh_kdf_ukm(ctx, p2, p1);
1244 case EVP_PKEY_CTRL_DH_KDF_OID:
1245 return EVP_PKEY_CTX_set0_dh_kdf_oid(ctx, p2);
1246 case EVP_PKEY_CTRL_GET_DH_KDF_MD:
1247 return EVP_PKEY_CTX_get_dh_kdf_md(ctx, p2);
1248 case EVP_PKEY_CTRL_GET_DH_KDF_OUTLEN:
1249 return EVP_PKEY_CTX_get_dh_kdf_outlen(ctx, p2);
1250 case EVP_PKEY_CTRL_GET_DH_KDF_UKM:
1251 return EVP_PKEY_CTX_get0_dh_kdf_ukm(ctx, p2);
1252 case EVP_PKEY_CTRL_GET_DH_KDF_OID:
1253 return EVP_PKEY_CTX_get0_dh_kdf_oid(ctx, p2);
1254 }
1255 }
4fe54d67
NT		 1256 if (keytype == EVP_PKEY_DH) {
1257 switch (cmd) {
1258 case EVP_PKEY_CTRL_DH_PAD:
1259 return EVP_PKEY_CTX_set_dh_pad(ctx, p1);
7165593c
SL		 1260 case EVP_PKEY_CTRL_DH_PARAMGEN_PRIME_LEN:
1261 return EVP_PKEY_CTX_set_dh_paramgen_prime_len(ctx, p1);
1262 case EVP_PKEY_CTRL_DH_PARAMGEN_SUBPRIME_LEN:
1263 return EVP_PKEY_CTX_set_dh_paramgen_subprime_len(ctx, p1);
1264 case EVP_PKEY_CTRL_DH_PARAMGEN_GENERATOR:
1265 return EVP_PKEY_CTX_set_dh_paramgen_generator(ctx, p1);
1266 case EVP_PKEY_CTRL_DH_PARAMGEN_TYPE:
1267 return EVP_PKEY_CTX_set_dh_paramgen_type(ctx, p1);
1268 case EVP_PKEY_CTRL_DH_RFC5114:
1269 return EVP_PKEY_CTX_set_dh_rfc5114(ctx, p1);
4fe54d67
NT		 1270 }
1271 }
1272# endif
b03ec3b5
SL		 1273# ifndef OPENSSL_NO_DSA
1274 if (keytype == EVP_PKEY_DSA) {
1275 switch (cmd) {
1276 case EVP_PKEY_CTRL_DSA_PARAMGEN_BITS:
1277 return EVP_PKEY_CTX_set_dsa_paramgen_bits(ctx, p1);
1278 case EVP_PKEY_CTRL_DSA_PARAMGEN_Q_BITS:
1279 return EVP_PKEY_CTX_set_dsa_paramgen_q_bits(ctx, p1);
1280 case EVP_PKEY_CTRL_DSA_PARAMGEN_MD:
1281 return EVP_PKEY_CTX_set_dsa_paramgen_md(ctx, p2);
1282 }
1283 }
1284# endif
4fe54d67
NT		 1285# ifndef OPENSSL_NO_EC
1286 if (keytype == EVP_PKEY_EC) {
1287 switch (cmd) {
7229a2f4
RL		 1288 case EVP_PKEY_CTRL_EC_PARAM_ENC:
1289 return evp_pkey_ctx_set_ec_param_enc_prov(ctx, p1);
10d756a7
RL		 1290 case EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID:
1291 return EVP_PKEY_CTX_set_ec_paramgen_curve_nid(ctx, p1);
6f4b7663
RL		 1292 case EVP_PKEY_CTRL_EC_ECDH_COFACTOR:
1293 if (p1 == -2) {
1294 return EVP_PKEY_CTX_get_ecdh_cofactor_mode(ctx);
1295 } else if (p1 < -1 || p1 > 1) {
1296 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
1297 return -2;
1298 } else {
1299 return EVP_PKEY_CTX_set_ecdh_cofactor_mode(ctx, p1);
1300 }
1301 case EVP_PKEY_CTRL_EC_KDF_TYPE:
1302 if (p1 == -2) {
1303 return EVP_PKEY_CTX_get_ecdh_kdf_type(ctx);
1304 } else {
1305 return EVP_PKEY_CTX_set_ecdh_kdf_type(ctx, p1);
1306 }
1307 case EVP_PKEY_CTRL_GET_EC_KDF_MD:
1308 return EVP_PKEY_CTX_get_ecdh_kdf_md(ctx, p2);
1309 case EVP_PKEY_CTRL_EC_KDF_MD:
1310 return EVP_PKEY_CTX_set_ecdh_kdf_md(ctx, p2);
1311 case EVP_PKEY_CTRL_GET_EC_KDF_OUTLEN:
1312 return EVP_PKEY_CTX_get_ecdh_kdf_outlen(ctx, p2);
1313 case EVP_PKEY_CTRL_EC_KDF_OUTLEN:
1314 return EVP_PKEY_CTX_set_ecdh_kdf_outlen(ctx, p1);
1315 case EVP_PKEY_CTRL_GET_EC_KDF_UKM:
1316 return EVP_PKEY_CTX_get0_ecdh_kdf_ukm(ctx, p2);
1317 case EVP_PKEY_CTRL_EC_KDF_UKM:
1318 return EVP_PKEY_CTX_set0_ecdh_kdf_ukm(ctx, p2, p1);
4fe54d67
NT		 1319 }
1320 }
e683582b 1321# endif
2decdad3
RL		 1322 if (keytype == EVP_PKEY_RSA) {
1323 switch (cmd) {
1324 case EVP_PKEY_CTRL_RSA_OAEP_MD:
1325 return EVP_PKEY_CTX_set_rsa_oaep_md(ctx, p2);
1326 case EVP_PKEY_CTRL_GET_RSA_OAEP_MD:
1327 return EVP_PKEY_CTX_get_rsa_oaep_md(ctx, p2);
1328 case EVP_PKEY_CTRL_RSA_MGF1_MD:
1329 return EVP_PKEY_CTX_set_rsa_oaep_md(ctx, p2);
1330 case EVP_PKEY_CTRL_RSA_OAEP_LABEL:
1331 return EVP_PKEY_CTX_set0_rsa_oaep_label(ctx, p2, p1);
1332 case EVP_PKEY_CTRL_GET_RSA_OAEP_LABEL:
1333 return EVP_PKEY_CTX_get0_rsa_oaep_label(ctx, (unsigned char **)p2);
1334 case EVP_PKEY_CTRL_RSA_KEYGEN_BITS:
1335 return EVP_PKEY_CTX_set_rsa_keygen_bits(ctx, p1);
1336 case EVP_PKEY_CTRL_RSA_KEYGEN_PUBEXP:
1337 return EVP_PKEY_CTX_set_rsa_keygen_pubexp(ctx, p2);
1338 case EVP_PKEY_CTRL_RSA_KEYGEN_PRIMES:
1339 return EVP_PKEY_CTX_set_rsa_keygen_primes(ctx, p1);
1340 }
1341 }
1342 /*
1343 * keytype == -1 is used when several key types share the same structure,
1344 * or for generic controls that are the same across multiple key types.
1345 */
4fe54d67 1346 if (keytype == -1) {
ac2d58c7
MC		 1347 if (optype == EVP_PKEY_OP_DERIVE) {
1348 switch (cmd) {
05d2f72e 1349 /* TLS1-PRF */
ac2d58c7
MC		 1350 case EVP_PKEY_CTRL_TLS_MD:
1351 return EVP_PKEY_CTX_set_tls1_prf_md(ctx, p2);
1352 case EVP_PKEY_CTRL_TLS_SECRET:
1353 return EVP_PKEY_CTX_set1_tls1_prf_secret(ctx, p2, p1);
1354 case EVP_PKEY_CTRL_TLS_SEED:
1355 return EVP_PKEY_CTX_add1_tls1_prf_seed(ctx, p2, p1);
05d2f72e
MC		 1356
1357 /* HKDF */
1358 case EVP_PKEY_CTRL_HKDF_MD:
1359 return EVP_PKEY_CTX_set_hkdf_md(ctx, p2);
1360 case EVP_PKEY_CTRL_HKDF_SALT :
1361 return EVP_PKEY_CTX_set1_hkdf_salt(ctx, p2, p1);
1362 case EVP_PKEY_CTRL_HKDF_KEY:
1363 return EVP_PKEY_CTX_set1_hkdf_key(ctx, p2, p1);
1364 case EVP_PKEY_CTRL_HKDF_INFO:
1365 return EVP_PKEY_CTX_add1_hkdf_info(ctx, p2, p1);
1366 case EVP_PKEY_CTRL_HKDF_MODE:
1367 return EVP_PKEY_CTX_hkdf_mode(ctx, p1);
194de849
MC		 1368
1369 /* Scrypt */
1370 case EVP_PKEY_CTRL_PASS:
1371 return EVP_PKEY_CTX_set1_pbe_pass(ctx, p2, p1);
1372 case EVP_PKEY_CTRL_SCRYPT_SALT:
1373 return EVP_PKEY_CTX_set1_scrypt_salt(ctx, p2, p1);
1374 case EVP_PKEY_CTRL_SCRYPT_N:
1375 return EVP_PKEY_CTX_set_scrypt_N(ctx, p1);
1376 case EVP_PKEY_CTRL_SCRYPT_R:
1377 return EVP_PKEY_CTX_set_scrypt_r(ctx, p1);
1378 case EVP_PKEY_CTRL_SCRYPT_P:
1379 return EVP_PKEY_CTX_set_scrypt_p(ctx, p1);
1380 case EVP_PKEY_CTRL_SCRYPT_MAXMEM_BYTES:
1381 return EVP_PKEY_CTX_set_scrypt_maxmem_bytes(ctx, p1);
ac2d58c7 1382 }
a540ef90
MC		 1383 } else if (optype == EVP_PKEY_OP_KEYGEN) {
1384 OSSL_PARAM params[2], *p = params;
1385
1386 switch (cmd) {
1387 case EVP_PKEY_CTRL_CIPHER:
1388 {
1389 char *ciphname = (char *)EVP_CIPHER_name(p2);
1390
1391 *p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_CIPHER,
1392 ciphname, 0);
1393 *p = OSSL_PARAM_construct_end();
1394
1395 return EVP_PKEY_CTX_set_params(ctx, params);
1396 }
1397 case EVP_PKEY_CTRL_SET_MAC_KEY:
1398 {
1399 *p++ = OSSL_PARAM_construct_octet_string(OSSL_PKEY_PARAM_PRIV_KEY,
1400 p2, p1);
1401 *p = OSSL_PARAM_construct_end();
1402
1403 return EVP_PKEY_CTX_set_params(ctx, params);
1404 }
1405 }
ac2d58c7 1406 }
4fe54d67 1407 switch (cmd) {
6f4b7663
RL		 1408 case EVP_PKEY_CTRL_MD:
1409 return EVP_PKEY_CTX_set_signature_md(ctx, p2);
1410 case EVP_PKEY_CTRL_GET_MD:
1411 return EVP_PKEY_CTX_get_signature_md(ctx, p2);
1412 case EVP_PKEY_CTRL_RSA_PADDING:
1413 return EVP_PKEY_CTX_set_rsa_padding(ctx, p1);
1414 case EVP_PKEY_CTRL_GET_RSA_PADDING:
1415 return EVP_PKEY_CTX_get_rsa_padding(ctx, p2);
6f4b7663
RL		 1416 case EVP_PKEY_CTRL_GET_RSA_MGF1_MD:
1417 return EVP_PKEY_CTX_get_rsa_oaep_md(ctx, p2);
6f4b7663
RL		 1418 case EVP_PKEY_CTRL_RSA_PSS_SALTLEN:
1419 return EVP_PKEY_CTX_set_rsa_pss_saltlen(ctx, p1);
1420 case EVP_PKEY_CTRL_GET_RSA_PSS_SALTLEN:
1421 return EVP_PKEY_CTX_get_rsa_pss_saltlen(ctx, p2);
1422 case EVP_PKEY_CTRL_PKCS7_ENCRYPT:
1423 case EVP_PKEY_CTRL_PKCS7_DECRYPT:
e683582b 1424# ifndef OPENSSL_NO_CMS
6f4b7663
RL		 1425 case EVP_PKEY_CTRL_CMS_DECRYPT:
1426 case EVP_PKEY_CTRL_CMS_ENCRYPT:
e683582b 1427# endif
cc572c25
RL		 1428 /* TODO (3.0) Temporary hack, this should probe */
1429 if (!EVP_PKEY_is_a(EVP_PKEY_CTX_get0_pkey(ctx), "RSASSA-PSS"))
6f4b7663
RL		 1430 return 1;
1431 ERR_raise(ERR_LIB_EVP,
1432 EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
1433 return -2;
4fe54d67 1434 }
35aca9ec 1435 }
a540ef90
MC		 1436
1437 /*
1438 * GOST CMS format is different for different cipher algorithms.
1439 * Most of other algorithms don't have such a difference
1440 * so this ctrl is just ignored.
1441 */
1442 if (cmd == EVP_PKEY_CTRL_CIPHER)
1443 return -2;
1444
35aca9ec
MC		 1445 return 0;
1446}
1447
86df26b3
RL		 1448static int evp_pkey_ctx_ctrl_int(EVP_PKEY_CTX *ctx, int keytype, int optype,
1449 int cmd, int p1, void *p2)
0f113f3e 1450{
86df26b3 1451 int ret = 0;
4803717f 1452
86df26b3
RL		 1453 /*
1454 * If the method has a |digest_custom| function, we can relax the
1455 * operation type check, since this can be called before the operation
1456 * is initialized.
1457 */
1458 if (ctx->pmeth == NULL || ctx->pmeth->digest_custom == NULL) {
1459 if (ctx->operation == EVP_PKEY_OP_UNDEFINED) {
1460 EVPerr(0, EVP_R_NO_OPERATION_SET);
1461 return -1;
1462 }
35aca9ec 1463
86df26b3
RL		 1464 if ((optype != -1) && !(ctx->operation & optype)) {
1465 EVPerr(0, EVP_R_INVALID_OPERATION);
1466 return -1;
1467 }
0f113f3e 1468 }
0f113f3e 1469
86df26b3
RL		 1470 switch (evp_pkey_ctx_state(ctx)) {
1471 case EVP_PKEY_STATE_PROVIDER:
1472 return legacy_ctrl_to_param(ctx, keytype, optype, cmd, p1, p2);
1473 case EVP_PKEY_STATE_UNKNOWN:
1474 case EVP_PKEY_STATE_LEGACY:
1475 if (ctx->pmeth == NULL || ctx->pmeth->ctrl == NULL) {
1476 EVPerr(0, EVP_R_COMMAND_NOT_SUPPORTED);
1477 return -2;
1478 }
1479 if ((keytype != -1) && (ctx->pmeth->pkey_id != keytype))
1480 return -1;
4803717f 1481
86df26b3 1482 ret = ctx->pmeth->ctrl(ctx, cmd, p1, p2);
0f113f3e 1483
86df26b3
RL		 1484 if (ret == -2)
1485 EVPerr(0, EVP_R_COMMAND_NOT_SUPPORTED);
1486 break;
0f113f3e 1487 }
86df26b3
RL		 1488 return ret;
1489}
0f113f3e 1490
86df26b3
RL		 1491int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype,
1492 int cmd, int p1, void *p2)
1493{
1494 int ret = 0;
1495
d65ab22e
SL		 1496 if (ctx == NULL) {
1497 EVPerr(0, EVP_R_COMMAND_NOT_SUPPORTED);
1498 return -2;
1499 }
86df26b3
RL		 1500 /* If unsupported, we don't want that reported here */
1501 ERR_set_mark();
1502 ret = evp_pkey_ctx_store_cached_data(ctx, keytype, optype,
1503 cmd, NULL, p2, p1);
1504 if (ret == -2) {
1505 ERR_pop_to_mark();
1506 } else {
1507 ERR_clear_last_mark();
1508 /*
1509 * If there was an error, there was an error.
1510 * If the operation isn't initialized yet, we also return, as
1511 * the saved values will be used then anyway.
1512 */
1513 if (ret < 1 || ctx->operation == EVP_PKEY_OP_UNDEFINED)
1514 return ret;
1515 }
86df26b3 1516 return evp_pkey_ctx_ctrl_int(ctx, keytype, optype, cmd, p1, p2);
0f113f3e 1517}
0b6f3c66 1518
cefa762e 1519int EVP_PKEY_CTX_ctrl_uint64(EVP_PKEY_CTX *ctx, int keytype, int optype,
64bf1016 1520 int cmd, uint64_t value)
cefa762e
JB		 1521{
1522 return EVP_PKEY_CTX_ctrl(ctx, keytype, optype, cmd, 0, &value);
1523}
1524
35aca9ec
MC		 1525static int legacy_ctrl_str_to_param(EVP_PKEY_CTX *ctx, const char *name,
1526 const char *value)
1527{
ac2d58c7
MC		 1528 if (strcmp(name, "md") == 0)
1529 name = OSSL_ALG_PARAM_DIGEST;
1530 else if (strcmp(name, "rsa_padding_mode") == 0)
972fa318
RL		 1531 name = OSSL_ASYM_CIPHER_PARAM_PAD_MODE;
1532 else if (strcmp(name, "rsa_mgf1_md") == 0)
1533 name = OSSL_ASYM_CIPHER_PARAM_MGF1_DIGEST;
1534 else if (strcmp(name, "rsa_oaep_md") == 0)
1535 name = OSSL_ASYM_CIPHER_PARAM_OAEP_DIGEST;
1536 else if (strcmp(name, "rsa_oaep_label") == 0)
1537 name = OSSL_ASYM_CIPHER_PARAM_OAEP_LABEL;
6f4b7663
RL		 1538 else if (strcmp(name, "rsa_pss_saltlen") == 0)
1539 name = OSSL_SIGNATURE_PARAM_PSS_SALTLEN;
2972af10
RL		 1540 else if (strcmp(name, "rsa_keygen_bits") == 0)
1541 name = OSSL_PKEY_PARAM_RSA_BITS;
1542 else if (strcmp(name, "rsa_keygen_pubexp") == 0)
1543 name = OSSL_PKEY_PARAM_RSA_E;
1544 else if (strcmp(name, "rsa_keygen_primes") == 0)
1545 name = OSSL_PKEY_PARAM_RSA_PRIMES;
e25761b1
RL		 1546 else if (strcmp(name, "rsa_pss_keygen_md") == 0)
1547 name = OSSL_PKEY_PARAM_RSA_DIGEST;
1548 else if (strcmp(name, "rsa_pss_keygen_mgf1_md") == 0)
1549 name = OSSL_PKEY_PARAM_RSA_MGF1_DIGEST;
1550 else if (strcmp(name, "rsa_pss_keygen_saltlen") == 0)
1551 name = OSSL_PKEY_PARAM_RSA_PSS_SALTLEN;
b03ec3b5
SL		 1552# ifndef OPENSSL_NO_DSA
1553 else if (strcmp(name, "dsa_paramgen_bits") == 0)
1554 name = OSSL_PKEY_PARAM_FFC_PBITS;
1555 else if (strcmp(name, "dsa_paramgen_q_bits") == 0)
1556 name = OSSL_PKEY_PARAM_FFC_QBITS;
1557 else if (strcmp(name, "dsa_paramgen_md") == 0)
1558 name = OSSL_PKEY_PARAM_FFC_DIGEST;
1559# endif
e683582b 1560# ifndef OPENSSL_NO_DH
7165593c 1561 else if (strcmp(name, "dh_paramgen_generator") == 0)
b8086652 1562 name = OSSL_PKEY_PARAM_DH_GENERATOR;
7165593c
SL		 1563 else if (strcmp(name, "dh_paramgen_prime_len") == 0)
1564 name = OSSL_PKEY_PARAM_FFC_PBITS;
1565 else if (strcmp(name, "dh_paramgen_subprime_len") == 0)
1566 name = OSSL_PKEY_PARAM_FFC_QBITS;
1567 else if (strcmp(name, "dh_paramgen_type") == 0) {
1568 name = OSSL_PKEY_PARAM_FFC_TYPE;
1569 value = dh_gen_type_id2name(atoi(value));
1570 } else if (strcmp(name, "dh_param") == 0)
023b188c 1571 name = OSSL_PKEY_PARAM_GROUP_NAME;
7165593c 1572 else if (strcmp(name, "dh_rfc5114") == 0) {
023b188c 1573 name = OSSL_PKEY_PARAM_GROUP_NAME;
7165593c
SL		 1574 value = ffc_named_group_from_uid(atoi(value));
1575 } else if (strcmp(name, "dh_pad") == 0)
972fa318 1576 name = OSSL_EXCHANGE_PARAM_PAD;
e683582b 1577# endif
4fe54d67 1578# ifndef OPENSSL_NO_EC
10d756a7 1579 else if (strcmp(name, "ec_paramgen_curve") == 0)
11a1b341 1580 name = OSSL_PKEY_PARAM_GROUP_NAME;
4fe54d67
NT		 1581 else if (strcmp(name, "ecdh_cofactor_mode") == 0)
1582 name = OSSL_EXCHANGE_PARAM_EC_ECDH_COFACTOR_MODE;
1583 else if (strcmp(name, "ecdh_kdf_md") == 0)
f552d900 1584 name = OSSL_EXCHANGE_PARAM_KDF_DIGEST;
c0f39ded
SL		 1585 else if (strcmp(name, "ec_param_enc") == 0)
1586 name = OSSL_PKEY_PARAM_EC_ENCODING;
4fe54d67 1587# endif
194de849
MC		 1588 else if (strcmp(name, "N") == 0)
1589 name = OSSL_KDF_PARAM_SCRYPT_N;
89abd1b6 1590
972fa318
RL		 1591 {
1592 /*
1593 * TODO(3.0) reduce the code above to only translate known legacy
1594 * string to the corresponding core name (see core_names.h), but
1595 * otherwise leave it to this code block to do the actual work.
1596 */
1597 const OSSL_PARAM *settable = EVP_PKEY_CTX_settable_params(ctx);
1598 OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
1599 int rv = 0;
292c8bdc 1600 int exists = 0;
89abd1b6 1601
972fa318 1602 if (!OSSL_PARAM_allocate_from_text(&params[0], settable, name, value,
292c8bdc
P		 1603 strlen(value), &exists)) {
1604 if (!exists) {
e25761b1
RL		 1605 ERR_raise_data(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED,
1606 "name=%s,value=%s", name, value);
292c8bdc
P		 1607 return -2;
1608 }
89abd1b6 1609 return 0;
292c8bdc 1610 }
972fa318
RL		 1611 if (EVP_PKEY_CTX_set_params(ctx, params))
1612 rv = 1;
1613 OPENSSL_free(params[0].data);
1614 return rv;
89abd1b6 1615 }
35aca9ec
MC		 1616}
1617
86df26b3
RL		 1618static int evp_pkey_ctx_ctrl_str_int(EVP_PKEY_CTX *ctx,
1619 const char *name, const char *value)
0f113f3e 1620{
86df26b3
RL		 1621 int ret = 0;
1622
35aca9ec 1623 if (ctx == NULL) {
86df26b3 1624 EVPerr(0, EVP_R_COMMAND_NOT_SUPPORTED);
35aca9ec
MC		 1625 return -2;
1626 }
1627
86df26b3
RL		 1628 switch (evp_pkey_ctx_state(ctx)) {
1629 case EVP_PKEY_STATE_PROVIDER:
35aca9ec 1630 return legacy_ctrl_str_to_param(ctx, name, value);
86df26b3
RL		 1631 case EVP_PKEY_STATE_UNKNOWN:
1632 case EVP_PKEY_STATE_LEGACY:
1633 if (ctx == NULL || ctx->pmeth == NULL || ctx->pmeth->ctrl_str == NULL) {
1634 EVPerr(0, EVP_R_COMMAND_NOT_SUPPORTED);
1635 return -2;
1636 }
1637 if (strcmp(name, "digest") == 0)
b9689452
RL		 1638 ret = EVP_PKEY_CTX_md(ctx,
1639 EVP_PKEY_OP_TYPE_SIG | EVP_PKEY_OP_TYPE_CRYPT,
86df26b3
RL		 1640 EVP_PKEY_CTRL_MD, value);
1641 else
1642 ret = ctx->pmeth->ctrl_str(ctx, name, value);
1643 break;
1644 }
35aca9ec 1645
86df26b3
RL		 1646 return ret;
1647}
1648
1649int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX *ctx,
1650 const char *name, const char *value)
1651{
1652 int ret = 0;
1653
1654 /* If unsupported, we don't want that reported here */
1655 ERR_set_mark();
1656 ret = evp_pkey_ctx_store_cached_data(ctx, -1, -1, -1,
1657 name, value, strlen(value) + 1);
1658 if (ret == -2) {
1659 ERR_pop_to_mark();
1660 } else {
1661 ERR_clear_last_mark();
1662 /*
1663 * If there was an error, there was an error.
1664 * If the operation isn't initialized yet, we also return, as
1665 * the saved values will be used then anyway.
1666 */
1667 if (ret < 1 || ctx->operation == EVP_PKEY_OP_UNDEFINED)
1668 return ret;
1669 }
1670
1671 return evp_pkey_ctx_ctrl_str_int(ctx, name, value);
1672}
1673
1674static int decode_cmd(int cmd, const char *name)
1675{
1676 if (cmd == -1) {
1677 /*
1678 * The consequence of the assertion not being true is that this
1679 * function will return -1, which will cause the calling functions
1680 * to signal that the command is unsupported... in non-debug mode.
1681 */
1682 if (ossl_assert(name != NULL))
1683 if (strcmp(name, "distid") == 0 || strcmp(name, "hexdistid") == 0)
1684 cmd = EVP_PKEY_CTRL_SET1_ID;
1685 }
1686
1687 return cmd;
1688}
1689
1690static int evp_pkey_ctx_store_cached_data(EVP_PKEY_CTX *ctx,
1691 int keytype, int optype,
1692 int cmd, const char *name,
1693 const void *data, size_t data_len)
1694{
1695 if ((keytype != -1 && ctx->pmeth->pkey_id != keytype)
1696 || ((optype != -1) && !(ctx->operation & optype))) {
1697 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION);
1698 return -1;
0f113f3e 1699 }
86df26b3
RL		 1700
1701 cmd = decode_cmd(cmd, name);
1702 switch (cmd) {
1703 case EVP_PKEY_CTRL_SET1_ID:
1704 evp_pkey_ctx_free_cached_data(ctx, cmd, name);
1705 if (name != NULL) {
1706 ctx->cached_parameters.dist_id_name = OPENSSL_strdup(name);
1707 if (ctx->cached_parameters.dist_id_name == NULL) {
1708 ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
1709 return 0;
1710 }
1711 }
1712 if (data_len > 0) {
1713 ctx->cached_parameters.dist_id = OPENSSL_memdup(data, data_len);
1714 if (ctx->cached_parameters.dist_id == NULL) {
1715 ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
1716 return 0;
1717 }
1718 }
1719 ctx->cached_parameters.dist_id_set = 1;
1720 ctx->cached_parameters.dist_id_len = data_len;
1721 return 1;
1722 }
1723
1724 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1725 return -2;
1726}
1727
1728static void evp_pkey_ctx_free_cached_data(EVP_PKEY_CTX *ctx,
1729 int cmd, const char *name)
1730{
1731 cmd = decode_cmd(cmd, name);
1732 switch (cmd) {
1733 case EVP_PKEY_CTRL_SET1_ID:
1734 OPENSSL_free(ctx->cached_parameters.dist_id);
1735 OPENSSL_free(ctx->cached_parameters.dist_id_name);
1736 ctx->cached_parameters.dist_id = NULL;
1737 ctx->cached_parameters.dist_id_name = NULL;
1738 break;
1739 }
1740}
1741
1742static void evp_pkey_ctx_free_all_cached_data(EVP_PKEY_CTX *ctx)
1743{
1744 evp_pkey_ctx_free_cached_data(ctx, EVP_PKEY_CTRL_SET1_ID, NULL);
1745}
1746
1747int evp_pkey_ctx_use_cached_data(EVP_PKEY_CTX *ctx)
1748{
1749 int ret = 1;
1750
1751 if (ret && ctx->cached_parameters.dist_id_set) {
1752 const char *name = ctx->cached_parameters.dist_id_name;
1753 const void *val = ctx->cached_parameters.dist_id;
1754 size_t len = ctx->cached_parameters.dist_id_len;
1755
1756 if (name != NULL)
1757 ret = evp_pkey_ctx_ctrl_str_int(ctx, name, val);
1758 else
1759 ret = evp_pkey_ctx_ctrl_int(ctx, -1, ctx->operation,
1760 EVP_PKEY_CTRL_SET1_ID,
1761 (int)len, (void *)val);
1762 }
1763
1764 return ret;
0f113f3e 1765}
f5cda4cb 1766
99119000
DSH		 1767/* Utility functions to send a string of hex string to a ctrl */
1768
1769int EVP_PKEY_CTX_str2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *str)
1770{
1771 size_t len;
1772
1773 len = strlen(str);
1774 if (len > INT_MAX)
1775 return -1;
1776 return ctx->pmeth->ctrl(ctx, cmd, len, (void *)str);
1777}
1778
1779int EVP_PKEY_CTX_hex2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *hex)
1780{
1781 unsigned char *bin;
1782 long binlen;
1783 int rv = -1;
1784
14f051a0 1785 bin = OPENSSL_hexstr2buf(hex, &binlen);
99119000
DSH		 1786 if (bin == NULL)
1787 return 0;
1788 if (binlen <= INT_MAX)
1789 rv = ctx->pmeth->ctrl(ctx, cmd, binlen, bin);
1790 OPENSSL_free(bin);
1791 return rv;
1792}
52ad523c 1793
410877ba
DSH		 1794/* Pass a message digest to a ctrl */
1795int EVP_PKEY_CTX_md(EVP_PKEY_CTX *ctx, int optype, int cmd, const char *md)
1796{
1797 const EVP_MD *m;
c82bafc5 1798
410877ba
DSH		 1799 if (md == NULL || (m = EVP_get_digestbyname(md)) == NULL) {
1800 EVPerr(EVP_F_EVP_PKEY_CTX_MD, EVP_R_INVALID_DIGEST);
1801 return 0;
1802 }
1803 return EVP_PKEY_CTX_ctrl(ctx, -1, optype, cmd, 0, (void *)m);
1804}
99119000 1805
b28dea4e 1806int EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 1807{
1808 return ctx->operation;
1809}
b28dea4e
DSH		 1810
1811void EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX *ctx, int *dat, int datlen)
0f113f3e
MC		 1812{
1813 ctx->keygen_info = dat;
1814 ctx->keygen_info_count = datlen;
1815}
b28dea4e 1816
f5cda4cb 1817void EVP_PKEY_CTX_set_data(EVP_PKEY_CTX *ctx, void *data)
0f113f3e
MC		 1818{
1819 ctx->data = data;
1820}
f5cda4cb 1821
9fdcc21f 1822void *EVP_PKEY_CTX_get_data(const EVP_PKEY_CTX *ctx)
0f113f3e
MC		 1823{
1824 return ctx->data;
1825}
f5cda4cb 1826
81cebb8b 1827EVP_PKEY *EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 1828{
1829 return ctx->pkey;
1830}
81cebb8b 1831
0e1dba93 1832EVP_PKEY *EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 1833{
1834 return ctx->peerkey;
1835}
1836
f5cda4cb 1837void EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX *ctx, void *data)
0f113f3e
MC		 1838{
1839 ctx->app_data = data;
1840}
f5cda4cb
DSH		 1841
1842void *EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 1843{
1844 return ctx->app_data;
1845}
ba30bad5
DSH		 1846
1847void EVP_PKEY_meth_set_init(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1848 int (*init) (EVP_PKEY_CTX *ctx))
1849{
1850 pmeth->init = init;
1851}
8bdcef40
DSH		 1852
1853void EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD *pmeth,
0f113f3e 1854 int (*copy) (EVP_PKEY_CTX *dst,
9fdcc21f 1855 const EVP_PKEY_CTX *src))
0f113f3e
MC		 1856{
1857 pmeth->copy = copy;
1858}
ba30bad5
DSH		 1859
1860void EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1861 void (*cleanup) (EVP_PKEY_CTX *ctx))
1862{
1863 pmeth->cleanup = cleanup;
1864}
ba30bad5
DSH		 1865
1866void EVP_PKEY_meth_set_paramgen(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1867 int (*paramgen_init) (EVP_PKEY_CTX *ctx),
1868 int (*paramgen) (EVP_PKEY_CTX *ctx,
1869 EVP_PKEY *pkey))
1870{
1871 pmeth->paramgen_init = paramgen_init;
1872 pmeth->paramgen = paramgen;
1873}
ba30bad5
DSH		 1874
1875void EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1876 int (*keygen_init) (EVP_PKEY_CTX *ctx),
1877 int (*keygen) (EVP_PKEY_CTX *ctx,
1878 EVP_PKEY *pkey))
1879{
1880 pmeth->keygen_init = keygen_init;
1881 pmeth->keygen = keygen;
1882}
ba30bad5
DSH		 1883
1884void EVP_PKEY_meth_set_sign(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1885 int (*sign_init) (EVP_PKEY_CTX *ctx),
1886 int (*sign) (EVP_PKEY_CTX *ctx,
1887 unsigned char *sig, size_t *siglen,
1888 const unsigned char *tbs,
1889 size_t tbslen))
1890{
1891 pmeth->sign_init = sign_init;
1892 pmeth->sign = sign;
1893}
ba30bad5
DSH		 1894
1895void EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1896 int (*verify_init) (EVP_PKEY_CTX *ctx),
1897 int (*verify) (EVP_PKEY_CTX *ctx,
1898 const unsigned char *sig,
1899 size_t siglen,
1900 const unsigned char *tbs,
1901 size_t tbslen))
1902{
1903 pmeth->verify_init = verify_init;
1904 pmeth->verify = verify;
1905}
ba30bad5
DSH		 1906
1907void EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1908 int (*verify_recover_init) (EVP_PKEY_CTX
1909 *ctx),
1910 int (*verify_recover) (EVP_PKEY_CTX
1911 *ctx,
1912 unsigned char
1913 *sig,
1914 size_t *siglen,
1915 const unsigned
1916 char *tbs,
1917 size_t tbslen))
1918{
1919 pmeth->verify_recover_init = verify_recover_init;
1920 pmeth->verify_recover = verify_recover;
1921}
ba30bad5
DSH		 1922
1923void EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1924 int (*signctx_init) (EVP_PKEY_CTX *ctx,
1925 EVP_MD_CTX *mctx),
1926 int (*signctx) (EVP_PKEY_CTX *ctx,
1927 unsigned char *sig,
1928 size_t *siglen,
1929 EVP_MD_CTX *mctx))
1930{
1931 pmeth->signctx_init = signctx_init;
1932 pmeth->signctx = signctx;
1933}
ba30bad5
DSH		 1934
1935void EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1936 int (*verifyctx_init) (EVP_PKEY_CTX *ctx,
1937 EVP_MD_CTX *mctx),
1938 int (*verifyctx) (EVP_PKEY_CTX *ctx,
1939 const unsigned char *sig,
1940 int siglen,
1941 EVP_MD_CTX *mctx))
1942{
1943 pmeth->verifyctx_init = verifyctx_init;
1944 pmeth->verifyctx = verifyctx;
1945}
ba30bad5
DSH		 1946
1947void EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1948 int (*encrypt_init) (EVP_PKEY_CTX *ctx),
1949 int (*encryptfn) (EVP_PKEY_CTX *ctx,
1950 unsigned char *out,
1951 size_t *outlen,
1952 const unsigned char *in,
1953 size_t inlen))
1954{
1955 pmeth->encrypt_init = encrypt_init;
1956 pmeth->encrypt = encryptfn;
1957}
ba30bad5
DSH		 1958
1959void EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1960 int (*decrypt_init) (EVP_PKEY_CTX *ctx),
1961 int (*decrypt) (EVP_PKEY_CTX *ctx,
1962 unsigned char *out,
1963 size_t *outlen,
1964 const unsigned char *in,
1965 size_t inlen))
1966{
1967 pmeth->decrypt_init = decrypt_init;
1968 pmeth->decrypt = decrypt;
1969}
ba30bad5
DSH		 1970
1971void EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1972 int (*derive_init) (EVP_PKEY_CTX *ctx),
1973 int (*derive) (EVP_PKEY_CTX *ctx,
1974 unsigned char *key,
1975 size_t *keylen))
1976{
1977 pmeth->derive_init = derive_init;
1978 pmeth->derive = derive;
1979}
ba30bad5
DSH		 1980
1981void EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1982 int (*ctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
1983 void *p2),
1984 int (*ctrl_str) (EVP_PKEY_CTX *ctx,
1985 const char *type,
1986 const char *value))
1987{
1988 pmeth->ctrl = ctrl;
1989 pmeth->ctrl_str = ctrl_str;
1990}
e7451ed1 1991
2555285f
AH		 1992void EVP_PKEY_meth_set_digestsign(EVP_PKEY_METHOD *pmeth,
1993 int (*digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen,
1994 const unsigned char *tbs, size_t tbslen))
1995{
1996 pmeth->digestsign = digestsign;
1997}
1998
1999void EVP_PKEY_meth_set_digestverify(EVP_PKEY_METHOD *pmeth,
2000 int (*digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig,
2001 size_t siglen, const unsigned char *tbs,
2002 size_t tbslen))
2003{
2004 pmeth->digestverify = digestverify;
2005}
2006
2aee35d3
PY		 2007void EVP_PKEY_meth_set_check(EVP_PKEY_METHOD *pmeth,
2008 int (*check) (EVP_PKEY *pkey))
2009{
2010 pmeth->check = check;
2011}
2012
b0004708
PY		 2013void EVP_PKEY_meth_set_public_check(EVP_PKEY_METHOD *pmeth,
2014 int (*check) (EVP_PKEY *pkey))
2015{
2016 pmeth->public_check = check;
2017}
2018
2019void EVP_PKEY_meth_set_param_check(EVP_PKEY_METHOD *pmeth,
2020 int (*check) (EVP_PKEY *pkey))
2021{
2022 pmeth->param_check = check;
2023}
2024
0a8fdef7
PY		 2025void EVP_PKEY_meth_set_digest_custom(EVP_PKEY_METHOD *pmeth,
2026 int (*digest_custom) (EVP_PKEY_CTX *ctx,
2027 EVP_MD_CTX *mctx))
2028{
2029 pmeth->digest_custom = digest_custom;
2030}
2031
693be9a2 2032void EVP_PKEY_meth_get_init(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 2033 int (**pinit) (EVP_PKEY_CTX *ctx))
2034{
2035 *pinit = pmeth->init;
2036}
2037
693be9a2 2038void EVP_PKEY_meth_get_copy(const EVP_PKEY_METHOD *pmeth,
e7451ed1 2039 int (**pcopy) (EVP_PKEY_CTX *dst,
9fdcc21f 2040 const EVP_PKEY_CTX *src))
e7451ed1
DSH		 2041{
2042 *pcopy = pmeth->copy;
2043}
2044
693be9a2 2045void EVP_PKEY_meth_get_cleanup(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 2046 void (**pcleanup) (EVP_PKEY_CTX *ctx))
2047{
2048 *pcleanup = pmeth->cleanup;
2049}
2050
693be9a2 2051void EVP_PKEY_meth_get_paramgen(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 2052 int (**pparamgen_init) (EVP_PKEY_CTX *ctx),
2053 int (**pparamgen) (EVP_PKEY_CTX *ctx,
2054 EVP_PKEY *pkey))
2055{
2056 if (pparamgen_init)
2057 *pparamgen_init = pmeth->paramgen_init;
2058 if (pparamgen)
2059 *pparamgen = pmeth->paramgen;
2060}
2061
693be9a2 2062void EVP_PKEY_meth_get_keygen(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 2063 int (**pkeygen_init) (EVP_PKEY_CTX *ctx),
2064 int (**pkeygen) (EVP_PKEY_CTX *ctx,
2065 EVP_PKEY *pkey))
2066{
2067 if (pkeygen_init)
2068 *pkeygen_init = pmeth->keygen_init;
2069 if (pkeygen)
2070 *pkeygen = pmeth->keygen;
2071}
2072
693be9a2 2073void EVP_PKEY_meth_get_sign(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 2074 int (**psign_init) (EVP_PKEY_CTX *ctx),
2075 int (**psign) (EVP_PKEY_CTX *ctx,
2076 unsigned char *sig, size_t *siglen,
2077 const unsigned char *tbs,
2078 size_t tbslen))
2079{
2080 if (psign_init)
2081 *psign_init = pmeth->sign_init;
2082 if (psign)
2083 *psign = pmeth->sign;
2084}
2085
693be9a2 2086void EVP_PKEY_meth_get_verify(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 2087 int (**pverify_init) (EVP_PKEY_CTX *ctx),
2088 int (**pverify) (EVP_PKEY_CTX *ctx,
2089 const unsigned char *sig,
2090 size_t siglen,
2091 const unsigned char *tbs,
2092 size_t tbslen))
2093{
2094 if (pverify_init)
2095 *pverify_init = pmeth->verify_init;
2096 if (pverify)
2097 *pverify = pmeth->verify;
2098}
2099
693be9a2 2100void EVP_PKEY_meth_get_verify_recover(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 2101 int (**pverify_recover_init) (EVP_PKEY_CTX
2102 *ctx),
2103 int (**pverify_recover) (EVP_PKEY_CTX
2104 *ctx,
2105 unsigned char
2106 *sig,
2107 size_t *siglen,
2108 const unsigned
2109 char *tbs,
2110 size_t tbslen))
2111{
2112 if (pverify_recover_init)
2113 *pverify_recover_init = pmeth->verify_recover_init;
2114 if (pverify_recover)
2115 *pverify_recover = pmeth->verify_recover;
2116}
2117
693be9a2 2118void EVP_PKEY_meth_get_signctx(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 2119 int (**psignctx_init) (EVP_PKEY_CTX *ctx,
2120 EVP_MD_CTX *mctx),
2121 int (**psignctx) (EVP_PKEY_CTX *ctx,
2122 unsigned char *sig,
2123 size_t *siglen,
2124 EVP_MD_CTX *mctx))
2125{
2126 if (psignctx_init)
2127 *psignctx_init = pmeth->signctx_init;
2128 if (psignctx)
2129 *psignctx = pmeth->signctx;
2130}
2131
693be9a2 2132void EVP_PKEY_meth_get_verifyctx(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 2133 int (**pverifyctx_init) (EVP_PKEY_CTX *ctx,
2134 EVP_MD_CTX *mctx),
2135 int (**pverifyctx) (EVP_PKEY_CTX *ctx,
2136 const unsigned char *sig,
2137 int siglen,
2138 EVP_MD_CTX *mctx))
2139{
2140 if (pverifyctx_init)
2141 *pverifyctx_init = pmeth->verifyctx_init;
2142 if (pverifyctx)
2143 *pverifyctx = pmeth->verifyctx;
2144}
2145
693be9a2 2146void EVP_PKEY_meth_get_encrypt(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 2147 int (**pencrypt_init) (EVP_PKEY_CTX *ctx),
2148 int (**pencryptfn) (EVP_PKEY_CTX *ctx,
2149 unsigned char *out,
2150 size_t *outlen,
2151 const unsigned char *in,
2152 size_t inlen))
2153{
2154 if (pencrypt_init)
2155 *pencrypt_init = pmeth->encrypt_init;
2156 if (pencryptfn)
2157 *pencryptfn = pmeth->encrypt;
2158}
2159
693be9a2 2160void EVP_PKEY_meth_get_decrypt(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 2161 int (**pdecrypt_init) (EVP_PKEY_CTX *ctx),
2162 int (**pdecrypt) (EVP_PKEY_CTX *ctx,
2163 unsigned char *out,
2164 size_t *outlen,
2165 const unsigned char *in,
2166 size_t inlen))
2167{
2168 if (pdecrypt_init)
2169 *pdecrypt_init = pmeth->decrypt_init;
2170 if (pdecrypt)
2171 *pdecrypt = pmeth->decrypt;
2172}
2173
693be9a2 2174void EVP_PKEY_meth_get_derive(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 2175 int (**pderive_init) (EVP_PKEY_CTX *ctx),
2176 int (**pderive) (EVP_PKEY_CTX *ctx,
2177 unsigned char *key,
2178 size_t *keylen))
2179{
2180 if (pderive_init)
2181 *pderive_init = pmeth->derive_init;
2182 if (pderive)
2183 *pderive = pmeth->derive;
2184}
2185
693be9a2 2186void EVP_PKEY_meth_get_ctrl(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 2187 int (**pctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
2188 void *p2),
2189 int (**pctrl_str) (EVP_PKEY_CTX *ctx,
2190 const char *type,
2191 const char *value))
2192{
2193 if (pctrl)
2194 *pctrl = pmeth->ctrl;
2195 if (pctrl_str)
2196 *pctrl_str = pmeth->ctrl_str;
2197}
2aee35d3 2198
2555285f
AH		 2199void EVP_PKEY_meth_get_digestsign(EVP_PKEY_METHOD *pmeth,
2200 int (**digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen,
2201 const unsigned char *tbs, size_t tbslen))
2202{
2203 if (digestsign)
2204 *digestsign = pmeth->digestsign;
2205}
2206
2207void EVP_PKEY_meth_get_digestverify(EVP_PKEY_METHOD *pmeth,
2208 int (**digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig,
2209 size_t siglen, const unsigned char *tbs,
2210 size_t tbslen))
2211{
2212 if (digestverify)
2213 *digestverify = pmeth->digestverify;
2214}
2215
693be9a2 2216void EVP_PKEY_meth_get_check(const EVP_PKEY_METHOD *pmeth,
2aee35d3
PY		 2217 int (**pcheck) (EVP_PKEY *pkey))
2218{
34f5c8b1 2219 if (pcheck != NULL)
2aee35d3
PY		 2220 *pcheck = pmeth->check;
2221}
b0004708 2222
693be9a2 2223void EVP_PKEY_meth_get_public_check(const EVP_PKEY_METHOD *pmeth,
b0004708
PY		 2224 int (**pcheck) (EVP_PKEY *pkey))
2225{
34f5c8b1 2226 if (pcheck != NULL)
b0004708
PY		 2227 *pcheck = pmeth->public_check;
2228}
2229
693be9a2 2230void EVP_PKEY_meth_get_param_check(const EVP_PKEY_METHOD *pmeth,
b0004708
PY		 2231 int (**pcheck) (EVP_PKEY *pkey))
2232{
34f5c8b1 2233 if (pcheck != NULL)
b0004708
PY		 2234 *pcheck = pmeth->param_check;
2235}
0a8fdef7
PY		 2236
2237void EVP_PKEY_meth_get_digest_custom(EVP_PKEY_METHOD *pmeth,
2238 int (**pdigest_custom) (EVP_PKEY_CTX *ctx,
2239 EVP_MD_CTX *mctx))
2240{
675f4cee 2241 if (pdigest_custom != NULL)
0a8fdef7
PY		 2242 *pdigest_custom = pmeth->digest_custom;
2243}
e683582b 2244
f844f9eb 2245#endif /* FIPS_MODULE */
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