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EVP: Move the functions and controls for setting and getting distid
[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
SL		 28#include "crypto/dh.h"
29#include "internal/ffc.h"
99119000 30#include "internal/numbers.h"
390acbeb 31#include "internal/provider.h"
706457b7 32#include "evp_local.h"
0b6f3c66 33
f844f9eb 34#ifndef FIPS_MODULE
e683582b 35
86df26b3
RL		 36static int evp_pkey_ctx_store_cached_data(EVP_PKEY_CTX *ctx,
37 int keytype, int optype,
38 int cmd, const char *name,
39 const void *data, size_t data_len);
40static void evp_pkey_ctx_free_cached_data(EVP_PKEY_CTX *ctx,
41 int cmd, const char *name);
42static void evp_pkey_ctx_free_all_cached_data(EVP_PKEY_CTX *ctx);
43
19bd1fa1 44typedef const EVP_PKEY_METHOD *(*pmeth_fn)(void);
0f113f3e 45typedef int sk_cmp_fn_type(const char *const *a, const char *const *b);
5ce278a7 46
df2ee0e2 47static STACK_OF(EVP_PKEY_METHOD) *app_pkey_methods = NULL;
0b6f3c66 48
cefa762e 49/* This array needs to be in order of NIDs */
19bd1fa1 50static pmeth_fn standard_methods[] = {
e683582b 51# ifndef OPENSSL_NO_RSA
19bd1fa1 52 rsa_pkey_method,
e683582b
SL		 53# endif
54# ifndef OPENSSL_NO_DH
19bd1fa1 55 dh_pkey_method,
e683582b
SL		 56# endif
57# ifndef OPENSSL_NO_DSA
19bd1fa1 58 dsa_pkey_method,
e683582b
SL		 59# endif
60# ifndef OPENSSL_NO_EC
19bd1fa1 61 ec_pkey_method,
e683582b
SL		 62# endif
63# ifndef OPENSSL_NO_RSA
19bd1fa1 64 rsa_pss_pkey_method,
e683582b
SL		 65# endif
66# ifndef OPENSSL_NO_DH
19bd1fa1 67 dhx_pkey_method,
e683582b 68# endif
e683582b 69# ifndef OPENSSL_NO_EC
19bd1fa1
PS		 70 ecx25519_pkey_method,
71 ecx448_pkey_method,
e683582b 72# endif
e683582b 73# ifndef OPENSSL_NO_EC
19bd1fa1
PS		 74 ed25519_pkey_method,
75 ed448_pkey_method,
e683582b
SL		 76# endif
77# ifndef OPENSSL_NO_SM2
19bd1fa1 78 sm2_pkey_method,
e683582b 79# endif
0f113f3e 80};
0b6f3c66 81
19bd1fa1
PS		 82DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, pmeth_fn, pmeth_func);
83
84static int pmeth_func_cmp(const EVP_PKEY_METHOD *const *a, pmeth_fn const *b)
85{
86 return ((*a)->pkey_id - ((**b)())->pkey_id);
87}
88
89IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, pmeth_fn, pmeth_func);
babb3798 90
0f113f3e
MC		 91static int pmeth_cmp(const EVP_PKEY_METHOD *const *a,
92 const EVP_PKEY_METHOD *const *b)
93{
94 return ((*a)->pkey_id - (*b)->pkey_id);
95}
0b6f3c66 96
c9777d26 97const EVP_PKEY_METHOD *EVP_PKEY_meth_find(int type)
0f113f3e 98{
19bd1fa1 99 pmeth_fn *ret;
0f113f3e 100 EVP_PKEY_METHOD tmp;
19bd1fa1 101 const EVP_PKEY_METHOD *t = &tmp;
12a765a5 102
0f113f3e
MC		 103 tmp.pkey_id = type;
104 if (app_pkey_methods) {
105 int idx;
106 idx = sk_EVP_PKEY_METHOD_find(app_pkey_methods, &tmp);
107 if (idx >= 0)
108 return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx);
109 }
19bd1fa1
PS		 110 ret = OBJ_bsearch_pmeth_func(&t, standard_methods,
111 sizeof(standard_methods) /
112 sizeof(pmeth_fn));
12a765a5 113 if (ret == NULL || *ret == NULL)
0f113f3e 114 return NULL;
19bd1fa1 115 return (**ret)();
0f113f3e 116}
0b6f3c66 117
e683582b
SL		 118EVP_PKEY_METHOD *EVP_PKEY_meth_new(int id, int flags)
119{
120 EVP_PKEY_METHOD *pmeth;
121
122 pmeth = OPENSSL_zalloc(sizeof(*pmeth));
123 if (pmeth == NULL) {
124 EVPerr(EVP_F_EVP_PKEY_METH_NEW, ERR_R_MALLOC_FAILURE);
125 return NULL;
126 }
127
128 pmeth->pkey_id = id;
129 pmeth->flags = flags | EVP_PKEY_FLAG_DYNAMIC;
130 return pmeth;
131}
50914496 132
86df26b3
RL		 133/* Three possible states: */
134# define EVP_PKEY_STATE_UNKNOWN 0
135# define EVP_PKEY_STATE_LEGACY 1
136# define EVP_PKEY_STATE_PROVIDER 2
137
138static int evp_pkey_ctx_state(EVP_PKEY_CTX *ctx)
139{
140 if (ctx->operation == EVP_PKEY_OP_UNDEFINED)
141 return EVP_PKEY_STATE_UNKNOWN;
142
143 if ((EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
144 && ctx->op.kex.exchprovctx != NULL)
145 || (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
146 && ctx->op.sig.sigprovctx != NULL)
147 || (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
148 && ctx->op.ciph.ciphprovctx != NULL)
149 || (EVP_PKEY_CTX_IS_GEN_OP(ctx)
150 && ctx->op.keymgmt.genctx != NULL))
151 return EVP_PKEY_STATE_PROVIDER;
152
153 return EVP_PKEY_STATE_LEGACY;
154}
155
50914496
RL		 156static void help_get_legacy_alg_type_from_keymgmt(const char *keytype,
157 void *arg)
158{
159 int *type = arg;
160
161 if (*type == NID_undef)
162 *type = evp_pkey_name2type(keytype);
163}
164
165static int get_legacy_alg_type_from_keymgmt(const EVP_KEYMGMT *keymgmt)
166{
167 int type = NID_undef;
168
169 EVP_KEYMGMT_names_do_all(keymgmt, help_get_legacy_alg_type_from_keymgmt,
170 &type);
171 return type;
172}
f844f9eb 173#endif /* FIPS_MODULE */
e683582b 174
b533510f
MC		 175static int is_legacy_alg(int id, const char *keytype)
176{
177#ifndef FIPS_MODULE
178 /* Certain EVP_PKEY keytypes are only available in legacy form */
50914496
RL		 179 if (id == -1)
180 id = evp_pkey_name2type(keytype);
181
b533510f
MC		 182 switch (id) {
183 /*
50914496 184 * TODO(3.0): Remove SM2 when they are converted to have provider
b533510f
MC		 185 * support
186 */
187 case EVP_PKEY_SM2:
b533510f
MC		 188 return 1;
189 default:
190 return 0;
191 }
192#else
193 return 0;
194#endif
195}
196
3ee348b0
RL		 197static EVP_PKEY_CTX *int_ctx_new(OPENSSL_CTX *libctx,
198 EVP_PKEY *pkey, ENGINE *e,
4b9e90f4 199 const char *keytype, const char *propquery,
a07c17ef 200 int id)
e683582b 201
0f113f3e 202{
50914496 203 EVP_PKEY_CTX *ret = NULL;
d0ea49a8 204 const EVP_PKEY_METHOD *pmeth = NULL;
4b9e90f4 205 EVP_KEYMGMT *keymgmt = NULL;
d0ea49a8
RL		 206
207 /*
50914496 208 * If the given |pkey| is provided, we extract the keytype from its
5e5bc836 209 * keymgmt and skip over the legacy code.
982efd77 210 */
5e5bc836 211 if (pkey != NULL && evp_pkey_is_provided(pkey)) {
982efd77
RL		 212 /* If we have an engine, something went wrong somewhere... */
213 if (!ossl_assert(e == NULL))
214 return NULL;
4b9e90f4 215 keytype = evp_first_name(pkey->keymgmt->prov, pkey->keymgmt->name_id);
982efd77
RL		 216 goto common;
217 }
50914496 218
f844f9eb 219#ifndef FIPS_MODULE
50914496
RL		 220 /*
221 * TODO(3.0) This legacy code section should be removed when we stop
222 * supporting engines
223 */
d0ea49a8 224 /* BEGIN legacy */
0f113f3e 225 if (id == -1) {
50914496
RL		 226 if (pkey != NULL)
227 id = pkey->type;
228 else if (keytype != NULL)
229 id = evp_pkey_name2type(keytype);
230 if (id == NID_undef)
231 id = -1;
0f113f3e 232 }
50914496
RL		 233 /* If no ID was found here, we can only resort to find a keymgmt */
234 if (id == -1)
235 goto common;
60653e5b
RL		 236
237 /*
238 * Here, we extract what information we can for the purpose of
239 * supporting usage with implementations from providers, to make
240 * for a smooth transition from legacy stuff to provider based stuff.
241 *
242 * If an engine is given, this is entirely legacy, and we should not
243 * pretend anything else, so we only set the name when no engine is
244 * given. If both are already given, someone made a mistake, and
245 * since that can only happen internally, it's safe to make an
246 * assertion.
247 */
4b9e90f4 248 if (!ossl_assert(e == NULL || keytype == NULL))
60653e5b
RL		 249 return NULL;
250 if (e == NULL)
4b9e90f4 251 keytype = OBJ_nid2sn(id);
60653e5b 252
e683582b 253# ifndef OPENSSL_NO_ENGINE
c2976edf 254 if (e == NULL && pkey != NULL)
d19b01ad 255 e = pkey->pmeth_engine != NULL ? pkey->pmeth_engine : pkey->engine;
0f113f3e
MC		 256 /* Try to find an ENGINE which implements this method */
257 if (e) {
258 if (!ENGINE_init(e)) {
259 EVPerr(EVP_F_INT_CTX_NEW, ERR_R_ENGINE_LIB);
260 return NULL;
261 }
c2976edf 262 } else {
0f113f3e 263 e = ENGINE_get_pkey_meth_engine(id);
c2976edf 264 }
0f113f3e
MC		 265
266 /*
0d4fb843 267 * If an ENGINE handled this method look it up. Otherwise use internal
0f113f3e
MC		 268 * tables.
269 */
50914496 270 if (e != NULL)
0f113f3e 271 pmeth = ENGINE_get_pkey_meth(e, id);
50914496 272 else
e683582b 273# endif
0f113f3e 274 pmeth = EVP_PKEY_meth_find(id);
c9777d26 275
d0ea49a8 276 /* END legacy */
f844f9eb 277#endif /* FIPS_MODULE */
d0ea49a8 278 common:
4b9e90f4
RL		 279 /*
280 * If there's no engine and there's a name, we try fetching a provider
281 * implementation.
282 */
5fcb97c6 283 if (e == NULL && keytype != NULL) {
b533510f
MC		 284 int legacy = is_legacy_alg(id, keytype);
285
50914496
RL		 286 /* This could fail so ignore errors */
287 if (legacy)
b533510f 288 ERR_set_mark();
b533510f 289
4b9e90f4 290 keymgmt = EVP_KEYMGMT_fetch(libctx, keytype, propquery);
50914496 291 if (legacy)
b533510f 292 ERR_pop_to_mark();
50914496
RL		 293 else if (keymgmt == NULL)
294 return NULL; /* EVP_KEYMGMT_fetch() recorded an error */
295
296#ifndef FIPS_MODULE
297 /*
298 * Chase down the legacy NID, as that might be needed for diverse
299 * purposes, such as ensure that EVP_PKEY_type() can return sensible
300 * values, or that there's a better chance to "downgrade" a key when
301 * needed. We go through all keymgmt names, because the keytype
302 * that's passed to this function doesn't necessarily translate
303 * directly.
304 * TODO: Remove this when #legacy keys are gone.
305 */
306 if (keymgmt != NULL) {
307 int tmp_id = get_legacy_alg_type_from_keymgmt(keymgmt);
308
309 if (tmp_id != NID_undef) {
310 if (id == -1) {
311 id = tmp_id;
312 } else {
313 /*
314 * It really really shouldn't differ. If it still does,
315 * something is very wrong.
316 */
317 if (!ossl_assert(id == tmp_id)) {
318 EVPerr(EVP_F_INT_CTX_NEW, ERR_R_INTERNAL_ERROR);
319 EVP_KEYMGMT_free(keymgmt);
320 return NULL;
321 }
322 }
323 }
b533510f 324 }
50914496
RL		 325#endif
326 }
327
328 if (pmeth == NULL && keymgmt == NULL) {
329 EVPerr(EVP_F_INT_CTX_NEW, EVP_R_UNSUPPORTED_ALGORITHM);
330 } else {
331 ret = OPENSSL_zalloc(sizeof(*ret));
332 if (ret == NULL)
333 EVPerr(EVP_F_INT_CTX_NEW, ERR_R_MALLOC_FAILURE);
5fcb97c6 334 }
4b9e90f4 335
f844f9eb 336#if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODULE)
50914496 337 if ((ret == NULL || pmeth == NULL) && e != NULL)
7c96dbcd 338 ENGINE_finish(e);
a63bf2c5 339#endif
50914496
RL		 340
341 if (ret == NULL) {
342 EVP_KEYMGMT_free(keymgmt);
0f113f3e
MC		 343 return NULL;
344 }
50914496 345
3ee348b0 346 ret->libctx = libctx;
a07c17ef 347 ret->propquery = propquery;
4b9e90f4
RL		 348 ret->keytype = keytype;
349 ret->keymgmt = keymgmt;
50914496 350 ret->legacy_keytype = id; /* TODO: Remove when #legacy key are gone */
0f113f3e
MC		 351 ret->engine = e;
352 ret->pmeth = pmeth;
353 ret->operation = EVP_PKEY_OP_UNDEFINED;
354 ret->pkey = pkey;
a6465b3f 355 if (pkey != NULL)
03273d61 356 EVP_PKEY_up_ref(pkey);
0f113f3e 357
8b84b075 358 if (pmeth != NULL && pmeth->init != NULL) {
0f113f3e 359 if (pmeth->init(ret) <= 0) {
83b4049a 360 ret->pmeth = NULL;
0f113f3e
MC		 361 EVP_PKEY_CTX_free(ret);
362 return NULL;
363 }
364 }
365
366 return ret;
367}
368
f844f9eb 369/*- All methods below can also be used in FIPS_MODULE */
e683582b
SL		 370
371EVP_PKEY_CTX *EVP_PKEY_CTX_new_from_name(OPENSSL_CTX *libctx,
372 const char *name,
373 const char *propquery)
374{
375 return int_ctx_new(libctx, NULL, NULL, name, propquery, -1);
376}
377
2ee4a50a
MC		 378EVP_PKEY_CTX *EVP_PKEY_CTX_new_from_pkey(OPENSSL_CTX *libctx, EVP_PKEY *pkey,
379 const char *propquery)
e683582b 380{
2ee4a50a 381 return int_ctx_new(libctx, pkey, NULL, NULL, propquery, -1);
e683582b
SL		 382}
383
864b89ce
MC		 384void evp_pkey_ctx_free_old_ops(EVP_PKEY_CTX *ctx)
385{
e683582b 386 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
864b89ce
MC		 387 if (ctx->op.sig.sigprovctx != NULL && ctx->op.sig.signature != NULL)
388 ctx->op.sig.signature->freectx(ctx->op.sig.sigprovctx);
389 EVP_SIGNATURE_free(ctx->op.sig.signature);
fb1ecf85
RL		 390 ctx->op.sig.sigprovctx = NULL;
391 ctx->op.sig.signature = NULL;
62f49b90 392 } else if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
e683582b
SL		 393 if (ctx->op.kex.exchprovctx != NULL && ctx->op.kex.exchange != NULL)
394 ctx->op.kex.exchange->freectx(ctx->op.kex.exchprovctx);
395 EVP_KEYEXCH_free(ctx->op.kex.exchange);
396 ctx->op.kex.exchprovctx = NULL;
397 ctx->op.kex.exchange = NULL;
62f49b90
SL		 398 }
399/* TODO(3.0): add dependancies and uncomment this when available for fips mode */
f844f9eb 400#ifndef FIPS_MODULE
62f49b90 401 else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)) {
2c938e2e
MC		 402 if (ctx->op.ciph.ciphprovctx != NULL && ctx->op.ciph.cipher != NULL)
403 ctx->op.ciph.cipher->freectx(ctx->op.ciph.ciphprovctx);
404 EVP_ASYM_CIPHER_free(ctx->op.ciph.cipher);
405 ctx->op.ciph.ciphprovctx = NULL;
406 ctx->op.ciph.cipher = NULL;
62924755
RL		 407 } else if (EVP_PKEY_CTX_IS_GEN_OP(ctx)) {
408 if (ctx->op.keymgmt.genctx != NULL && ctx->keymgmt != NULL)
409 evp_keymgmt_gen_cleanup(ctx->keymgmt, ctx->op.keymgmt.genctx);
864b89ce 410 }
e683582b 411#endif
864b89ce
MC		 412}
413
e683582b 414void EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx)
0f113f3e 415{
e683582b
SL		 416 if (ctx == NULL)
417 return;
418 if (ctx->pmeth && ctx->pmeth->cleanup)
419 ctx->pmeth->cleanup(ctx);
b4faea50 420
e683582b 421 evp_pkey_ctx_free_old_ops(ctx);
86df26b3
RL		 422#ifndef FIPS_MODULE
423 evp_pkey_ctx_free_all_cached_data(ctx);
424#endif
e683582b 425 EVP_KEYMGMT_free(ctx->keymgmt);
0f113f3e 426
e683582b
SL		 427 EVP_PKEY_free(ctx->pkey);
428 EVP_PKEY_free(ctx->peerkey);
f844f9eb 429#if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODULE)
e683582b
SL		 430 ENGINE_finish(ctx->engine);
431#endif
432 OPENSSL_free(ctx);
0f113f3e 433}
ba30bad5 434
f844f9eb 435#ifndef FIPS_MODULE
e683582b 436
f830c68f 437void EVP_PKEY_meth_get0_info(int *ppkey_id, int *pflags,
0f113f3e
MC		 438 const EVP_PKEY_METHOD *meth)
439{
440 if (ppkey_id)
441 *ppkey_id = meth->pkey_id;
442 if (pflags)
443 *pflags = meth->flags;
444}
f830c68f
DSH		 445
446void EVP_PKEY_meth_copy(EVP_PKEY_METHOD *dst, const EVP_PKEY_METHOD *src)
0f113f3e 447{
4cbb196b
AT		 448 int pkey_id = dst->pkey_id;
449 int flags = dst->flags;
f830c68f 450
4cbb196b 451 *dst = *src;
f830c68f 452
4cbb196b
AT		 453 /* We only copy the function pointers so restore the other values */
454 dst->pkey_id = pkey_id;
455 dst->flags = flags;
0f113f3e 456}
f830c68f 457
ba30bad5 458void EVP_PKEY_meth_free(EVP_PKEY_METHOD *pmeth)
0f113f3e
MC		 459{
460 if (pmeth && (pmeth->flags & EVP_PKEY_FLAG_DYNAMIC))
461 OPENSSL_free(pmeth);
462}
ba30bad5 463
f5cda4cb 464EVP_PKEY_CTX *EVP_PKEY_CTX_new(EVP_PKEY *pkey, ENGINE *e)
0f113f3e 465{
3ee348b0 466 return int_ctx_new(NULL, pkey, e, NULL, NULL, -1);
0f113f3e 467}
f5cda4cb
DSH		 468
469EVP_PKEY_CTX *EVP_PKEY_CTX_new_id(int id, ENGINE *e)
0f113f3e 470{
3ee348b0 471 return int_ctx_new(NULL, NULL, e, NULL, NULL, id);
a07c17ef
RL		 472}
473
9fdcc21f 474EVP_PKEY_CTX *EVP_PKEY_CTX_dup(const EVP_PKEY_CTX *pctx)
0f113f3e
MC		 475{
476 EVP_PKEY_CTX *rctx;
ff64702b
MC		 477
478 if (((pctx->pmeth == NULL) || (pctx->pmeth->copy == NULL))
864b89ce
MC		 479 && ((EVP_PKEY_CTX_IS_DERIVE_OP(pctx)
480 && pctx->op.kex.exchprovctx == NULL)
481 || (EVP_PKEY_CTX_IS_SIGNATURE_OP(pctx)
482 && pctx->op.sig.sigprovctx == NULL)))
0f113f3e 483 return NULL;
e683582b 484# ifndef OPENSSL_NO_ENGINE
0f113f3e
MC		 485 /* Make sure it's safe to copy a pkey context using an ENGINE */
486 if (pctx->engine && !ENGINE_init(pctx->engine)) {
487 EVPerr(EVP_F_EVP_PKEY_CTX_DUP, ERR_R_ENGINE_LIB);
488 return 0;
489 }
e683582b 490# endif
ff64702b 491 rctx = OPENSSL_zalloc(sizeof(*rctx));
3484236d
F		 492 if (rctx == NULL) {
493 EVPerr(EVP_F_EVP_PKEY_CTX_DUP, ERR_R_MALLOC_FAILURE);
0f113f3e 494 return NULL;
3484236d 495 }
8bdcef40 496
ff64702b
MC		 497 if (pctx->pkey != NULL)
498 EVP_PKEY_up_ref(pctx->pkey);
499 rctx->pkey = pctx->pkey;
500 rctx->operation = pctx->operation;
3ee348b0 501 rctx->libctx = pctx->libctx;
f23bc0b7 502 rctx->keytype = pctx->keytype;
a07c17ef 503 rctx->propquery = pctx->propquery;
ff64702b 504
864b89ce
MC		 505 if (EVP_PKEY_CTX_IS_DERIVE_OP(pctx)) {
506 if (pctx->op.kex.exchange != NULL) {
507 rctx->op.kex.exchange = pctx->op.kex.exchange;
508 if (!EVP_KEYEXCH_up_ref(rctx->op.kex.exchange)) {
509 OPENSSL_free(rctx);
510 return NULL;
511 }
ff64702b 512 }
864b89ce
MC		 513 if (pctx->op.kex.exchprovctx != NULL) {
514 if (!ossl_assert(pctx->op.kex.exchange != NULL))
515 return NULL;
516 rctx->op.kex.exchprovctx
517 = pctx->op.kex.exchange->dupctx(pctx->op.kex.exchprovctx);
518 if (rctx->op.kex.exchprovctx == NULL) {
519 EVP_KEYEXCH_free(rctx->op.kex.exchange);
520 OPENSSL_free(rctx);
521 return NULL;
522 }
523 return rctx;
524 }
525 } else if (EVP_PKEY_CTX_IS_SIGNATURE_OP(pctx)) {
526 if (pctx->op.sig.signature != NULL) {
527 rctx->op.sig.signature = pctx->op.sig.signature;
528 if (!EVP_SIGNATURE_up_ref(rctx->op.sig.signature)) {
529 OPENSSL_free(rctx);
530 return NULL;
531 }
532 }
533 if (pctx->op.sig.sigprovctx != NULL) {
534 if (!ossl_assert(pctx->op.sig.signature != NULL))
535 return NULL;
536 rctx->op.sig.sigprovctx
537 = pctx->op.sig.signature->dupctx(pctx->op.sig.sigprovctx);
538 if (rctx->op.sig.sigprovctx == NULL) {
539 EVP_SIGNATURE_free(rctx->op.sig.signature);
540 OPENSSL_free(rctx);
541 return NULL;
542 }
543 return rctx;
ff64702b 544 }
2c938e2e
MC		 545 } else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(pctx)) {
546 if (pctx->op.ciph.cipher != NULL) {
547 rctx->op.ciph.cipher = pctx->op.ciph.cipher;
548 if (!EVP_ASYM_CIPHER_up_ref(rctx->op.ciph.cipher)) {
549 OPENSSL_free(rctx);
550 return NULL;
551 }
552 }
553 if (pctx->op.ciph.ciphprovctx != NULL) {
554 if (!ossl_assert(pctx->op.ciph.cipher != NULL))
555 return NULL;
556 rctx->op.ciph.ciphprovctx
557 = pctx->op.ciph.cipher->dupctx(pctx->op.ciph.ciphprovctx);
558 if (rctx->op.ciph.ciphprovctx == NULL) {
559 EVP_ASYM_CIPHER_free(rctx->op.ciph.cipher);
560 OPENSSL_free(rctx);
561 return NULL;
562 }
563 return rctx;
564 }
ff64702b
MC		 565 }
566
0f113f3e 567 rctx->pmeth = pctx->pmeth;
e683582b 568# ifndef OPENSSL_NO_ENGINE
0f113f3e 569 rctx->engine = pctx->engine;
e683582b 570# endif
8bdcef40 571
0f113f3e 572 if (pctx->peerkey)
03273d61 573 EVP_PKEY_up_ref(pctx->peerkey);
0f113f3e 574 rctx->peerkey = pctx->peerkey;
8bdcef40 575
0f113f3e
MC		 576 if (pctx->pmeth->copy(rctx, pctx) > 0)
577 return rctx;
8bdcef40 578
83b4049a 579 rctx->pmeth = NULL;
0f113f3e
MC		 580 EVP_PKEY_CTX_free(rctx);
581 return NULL;
8bdcef40 582
0f113f3e 583}
8bdcef40 584
ba30bad5 585int EVP_PKEY_meth_add0(const EVP_PKEY_METHOD *pmeth)
0f113f3e
MC		 586{
587 if (app_pkey_methods == NULL) {
588 app_pkey_methods = sk_EVP_PKEY_METHOD_new(pmeth_cmp);
3484236d
F		 589 if (app_pkey_methods == NULL){
590 EVPerr(EVP_F_EVP_PKEY_METH_ADD0, ERR_R_MALLOC_FAILURE);
0f113f3e 591 return 0;
3484236d 592 }
0f113f3e 593 }
3484236d
F		 594 if (!sk_EVP_PKEY_METHOD_push(app_pkey_methods, pmeth)) {
595 EVPerr(EVP_F_EVP_PKEY_METH_ADD0, ERR_R_MALLOC_FAILURE);
0f113f3e 596 return 0;
3484236d 597 }
0f113f3e
MC		 598 sk_EVP_PKEY_METHOD_sort(app_pkey_methods);
599 return 1;
600}
ba30bad5 601
0822e89a
PY		 602void evp_app_cleanup_int(void)
603{
604 if (app_pkey_methods != NULL)
605 sk_EVP_PKEY_METHOD_pop_free(app_pkey_methods, EVP_PKEY_meth_free);
606}
607
608int EVP_PKEY_meth_remove(const EVP_PKEY_METHOD *pmeth)
609{
610 const EVP_PKEY_METHOD *ret;
611
612 ret = sk_EVP_PKEY_METHOD_delete_ptr(app_pkey_methods, pmeth);
613
614 return ret == NULL ? 0 : 1;
615}
616
48ed9c23
DSH		 617size_t EVP_PKEY_meth_get_count(void)
618{
619 size_t rv = OSSL_NELEM(standard_methods);
620
621 if (app_pkey_methods)
622 rv += sk_EVP_PKEY_METHOD_num(app_pkey_methods);
623 return rv;
624}
625
626const EVP_PKEY_METHOD *EVP_PKEY_meth_get0(size_t idx)
627{
628 if (idx < OSSL_NELEM(standard_methods))
19bd1fa1 629 return (standard_methods[idx])();
48ed9c23
DSH		 630 if (app_pkey_methods == NULL)
631 return NULL;
632 idx -= OSSL_NELEM(standard_methods);
633 if (idx >= (size_t)sk_EVP_PKEY_METHOD_num(app_pkey_methods))
634 return NULL;
635 return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx);
636}
e683582b 637#endif
48ed9c23 638
e683582b 639int EVP_PKEY_CTX_set_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
0f113f3e 640{
e683582b
SL		 641 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
642 && ctx->op.kex.exchprovctx != NULL
643 && ctx->op.kex.exchange != NULL
644 && ctx->op.kex.exchange->set_ctx_params != NULL)
645 return ctx->op.kex.exchange->set_ctx_params(ctx->op.kex.exchprovctx,
646 params);
647 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
648 && ctx->op.sig.sigprovctx != NULL
649 && ctx->op.sig.signature != NULL
650 && ctx->op.sig.signature->set_ctx_params != NULL)
651 return ctx->op.sig.signature->set_ctx_params(ctx->op.sig.sigprovctx,
652 params);
653 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
654 && ctx->op.ciph.ciphprovctx != NULL
655 && ctx->op.ciph.cipher != NULL
656 && ctx->op.ciph.cipher->set_ctx_params != NULL)
657 return ctx->op.ciph.cipher->set_ctx_params(ctx->op.ciph.ciphprovctx,
658 params);
62924755
RL		 659 if (EVP_PKEY_CTX_IS_GEN_OP(ctx)
660 && ctx->op.keymgmt.genctx != NULL
661 && ctx->keymgmt != NULL
662 && ctx->keymgmt->gen_set_params != NULL)
663 return evp_keymgmt_gen_set_params(ctx->keymgmt, ctx->op.keymgmt.genctx,
664 params);
e683582b 665 return 0;
0f113f3e 666}
5da98aa6 667
9c45222d
MC		 668int EVP_PKEY_CTX_get_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
669{
4fe54d67
NT		 670 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
671 && ctx->op.kex.exchprovctx != NULL
672 && ctx->op.kex.exchange != NULL
673 && ctx->op.kex.exchange->get_ctx_params != NULL)
674 return ctx->op.kex.exchange->get_ctx_params(ctx->op.kex.exchprovctx,
675 params);
864b89ce
MC		 676 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
677 && ctx->op.sig.sigprovctx != NULL
678 && ctx->op.sig.signature != NULL
679 && ctx->op.sig.signature->get_ctx_params != NULL)
680 return ctx->op.sig.signature->get_ctx_params(ctx->op.sig.sigprovctx,
681 params);
2c938e2e
MC		 682 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
683 && ctx->op.ciph.ciphprovctx != NULL
684 && ctx->op.ciph.cipher != NULL
685 && ctx->op.ciph.cipher->get_ctx_params != NULL)
686 return ctx->op.ciph.cipher->get_ctx_params(ctx->op.ciph.ciphprovctx,
687 params);
9c45222d
MC		 688 return 0;
689}
690
11a1b341 691#ifndef FIPS_MODULE
9c45222d
MC		 692const OSSL_PARAM *EVP_PKEY_CTX_gettable_params(EVP_PKEY_CTX *ctx)
693{
18ec26ba
P		 694 void *provctx;
695
4fe54d67
NT		 696 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
697 && ctx->op.kex.exchange != NULL
18ec26ba
P		 698 && ctx->op.kex.exchange->gettable_ctx_params != NULL) {
699 provctx = ossl_provider_ctx(EVP_KEYEXCH_provider(ctx->op.kex.exchange));
700 return ctx->op.kex.exchange->gettable_ctx_params(provctx);
701 }
864b89ce
MC		 702 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
703 && ctx->op.sig.signature != NULL
18ec26ba
P		 704 && ctx->op.sig.signature->gettable_ctx_params != NULL) {
705 provctx = ossl_provider_ctx(
706 EVP_SIGNATURE_provider(ctx->op.sig.signature));
707 return ctx->op.sig.signature->gettable_ctx_params(provctx);
708 }
2c938e2e
MC		 709 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
710 && ctx->op.ciph.cipher != NULL
18ec26ba
P		 711 && ctx->op.ciph.cipher->gettable_ctx_params != NULL) {
712 provctx = ossl_provider_ctx(
713 EVP_ASYM_CIPHER_provider(ctx->op.ciph.cipher));
714 return ctx->op.ciph.cipher->gettable_ctx_params(provctx);
715 }
9c45222d
MC		 716 return NULL;
717}
718
9c45222d
MC		 719const OSSL_PARAM *EVP_PKEY_CTX_settable_params(EVP_PKEY_CTX *ctx)
720{
18ec26ba
P		 721 void *provctx;
722
864b89ce
MC		 723 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
724 && ctx->op.kex.exchange != NULL
18ec26ba
P		 725 && ctx->op.kex.exchange->settable_ctx_params != NULL) {
726 provctx = ossl_provider_ctx(EVP_KEYEXCH_provider(ctx->op.kex.exchange));
727 return ctx->op.kex.exchange->settable_ctx_params(provctx);
728 }
864b89ce
MC		 729 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
730 && ctx->op.sig.signature != NULL
18ec26ba
P		 731 && ctx->op.sig.signature->settable_ctx_params != NULL) {
732 provctx = ossl_provider_ctx(
733 EVP_SIGNATURE_provider(ctx->op.sig.signature));
734 return ctx->op.sig.signature->settable_ctx_params(provctx);
735 }
2c938e2e
MC		 736 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
737 && ctx->op.ciph.cipher != NULL
18ec26ba
P		 738 && ctx->op.ciph.cipher->settable_ctx_params != NULL) {
739 provctx = ossl_provider_ctx(
740 EVP_ASYM_CIPHER_provider(ctx->op.ciph.cipher));
741 return ctx->op.ciph.cipher->settable_ctx_params(provctx);
742 }
62924755 743 if (EVP_PKEY_CTX_IS_GEN_OP(ctx)
5e77b79a 744 && ctx->keymgmt != NULL)
e3efe7a5 745 return EVP_KEYMGMT_gen_settable_params(ctx->keymgmt);
9c45222d
MC		 746
747 return NULL;
748}
749
4fe54d67
NT		 750/*
751 * Internal helpers for stricter EVP_PKEY_CTX_{set,get}_params().
752 *
753 * Return 1 on success, 0 or negative for errors.
754 *
755 * In particular they return -2 if any of the params is not supported.
756 *
f844f9eb 757 * They are not available in FIPS_MODULE as they depend on
4fe54d67
NT		 758 * - EVP_PKEY_CTX_{get,set}_params()
759 * - EVP_PKEY_CTX_{gettable,settable}_params()
760 *
761 */
762int evp_pkey_ctx_set_params_strict(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
763{
764 const OSSL_PARAM *p;
765
766 if (ctx == NULL || params == NULL)
767 return 0;
768
769 for (p = params; p->key != NULL; p++) {
770 /* Check the ctx actually understands this parameter */
771 if (OSSL_PARAM_locate_const(EVP_PKEY_CTX_settable_params(ctx),
772 p->key) == NULL )
773 return -2;
774 }
775
776 return EVP_PKEY_CTX_set_params(ctx, params);
777}
778
779int evp_pkey_ctx_get_params_strict(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
780{
781 const OSSL_PARAM *p;
782
783 if (ctx == NULL || params == NULL)
784 return 0;
785
786 for (p = params; p->key != NULL; p++ ) {
787 /* Check the ctx actually understands this parameter */
788 if (OSSL_PARAM_locate_const(EVP_PKEY_CTX_gettable_params(ctx),
789 p->key) == NULL )
790 return -2;
791 }
792
793 return EVP_PKEY_CTX_get_params(ctx, params);
794}
795
e683582b 796# ifndef OPENSSL_NO_DH
35aca9ec
MC		 797int EVP_PKEY_CTX_set_dh_pad(EVP_PKEY_CTX *ctx, int pad)
798{
799 OSSL_PARAM dh_pad_params[2];
1c3ace68 800 unsigned int upad = pad;
35aca9ec 801
864b89ce
MC		 802 /* We use EVP_PKEY_CTX_ctrl return values */
803 if (ctx == NULL || !EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
804 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
805 return -2;
806 }
807
35aca9ec 808 /* TODO(3.0): Remove this eventually when no more legacy */
864b89ce 809 if (ctx->op.kex.exchprovctx == NULL)
35aca9ec
MC		 810 return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DH, EVP_PKEY_OP_DERIVE,
811 EVP_PKEY_CTRL_DH_PAD, pad, NULL);
812
1c3ace68 813 dh_pad_params[0] = OSSL_PARAM_construct_uint(OSSL_EXCHANGE_PARAM_PAD, &upad);
35aca9ec
MC		 814 dh_pad_params[1] = OSSL_PARAM_construct_end();
815
816 return EVP_PKEY_CTX_set_params(ctx, dh_pad_params);
817}
e683582b 818# endif
35aca9ec 819
9c45222d
MC		 820int EVP_PKEY_CTX_get_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD **md)
821{
ac2d58c7 822 OSSL_PARAM sig_md_params[2], *p = sig_md_params;
9c45222d
MC		 823 /* 80 should be big enough */
824 char name[80] = "";
825 const EVP_MD *tmp;
826
864b89ce 827 if (ctx == NULL || !EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
9c45222d
MC		 828 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
829 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
830 return -2;
831 }
832
833 /* TODO(3.0): Remove this eventually when no more legacy */
864b89ce 834 if (ctx->op.sig.sigprovctx == NULL)
9c45222d
MC		 835 return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG,
836 EVP_PKEY_CTRL_GET_MD, 0, (void *)(md));
837
838 *p++ = OSSL_PARAM_construct_utf8_string(OSSL_SIGNATURE_PARAM_DIGEST,
839 name,
840 sizeof(name));
ac2d58c7 841 *p = OSSL_PARAM_construct_end();
9c45222d
MC		 842
843 if (!EVP_PKEY_CTX_get_params(ctx, sig_md_params))
844 return 0;
845
7606bed9 846 tmp = evp_get_digestbyname_ex(ctx->libctx, name);
9c45222d
MC		 847 if (tmp == NULL)
848 return 0;
849
850 *md = tmp;
851
852 return 1;
853}
854
05d2f72e
MC		 855static int evp_pkey_ctx_set_md(EVP_PKEY_CTX *ctx, const EVP_MD *md,
856 int fallback, const char *param, int op,
857 int ctrl)
4889dadc 858{
05d2f72e 859 OSSL_PARAM md_params[2], *p = md_params;
4889dadc
MC		 860 const char *name;
861
05d2f72e 862 if (ctx == NULL || (ctx->operation & op) == 0) {
9c45222d
MC		 863 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
864 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
865 return -2;
866 }
867
4889dadc 868 /* TODO(3.0): Remove this eventually when no more legacy */
05d2f72e
MC		 869 if (fallback)
870 return EVP_PKEY_CTX_ctrl(ctx, -1, op, ctrl, 0, (void *)(md));
4889dadc 871
9c45222d
MC		 872 if (md == NULL) {
873 name = "";
9c45222d 874 } else {
9c45222d
MC		 875 name = EVP_MD_name(md);
876 }
4889dadc 877
05d2f72e 878 *p++ = OSSL_PARAM_construct_utf8_string(param,
9c45222d
MC		 879 /*
880 * Cast away the const. This is read
881 * only so should be safe
882 */
8b6ffd40 883 (char *)name, 0);
ac2d58c7 884 *p = OSSL_PARAM_construct_end();
4889dadc 885
05d2f72e
MC		 886 return EVP_PKEY_CTX_set_params(ctx, md_params);
887}
888
889int EVP_PKEY_CTX_set_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD *md)
890{
891 return evp_pkey_ctx_set_md(ctx, md, ctx->op.sig.sigprovctx == NULL,
892 OSSL_SIGNATURE_PARAM_DIGEST,
893 EVP_PKEY_OP_TYPE_SIG, EVP_PKEY_CTRL_MD);
4889dadc
MC		 894}
895
ac2d58c7
MC		 896int EVP_PKEY_CTX_set_tls1_prf_md(EVP_PKEY_CTX *ctx, const EVP_MD *md)
897{
05d2f72e
MC		 898 return evp_pkey_ctx_set_md(ctx, md, ctx->op.kex.exchprovctx == NULL,
899 OSSL_KDF_PARAM_DIGEST,
900 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_TLS_MD);
901}
902
903static int evp_pkey_ctx_set1_octet_string(EVP_PKEY_CTX *ctx, int fallback,
904 const char *param, int op, int ctrl,
905 const unsigned char *data,
906 int datalen)
907{
908 OSSL_PARAM octet_string_params[2], *p = octet_string_params;
ac2d58c7 909
5d51925a 910 if (ctx == NULL || (ctx->operation & op) == 0) {
ac2d58c7
MC		 911 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
912 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
913 return -2;
914 }
915
916 /* TODO(3.0): Remove this eventually when no more legacy */
05d2f72e
MC		 917 if (fallback)
918 return EVP_PKEY_CTX_ctrl(ctx, -1, op, ctrl, datalen, (void *)(data));
ac2d58c7 919
05d2f72e
MC		 920 if (datalen < 0) {
921 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_LENGTH);
922 return 0;
ac2d58c7
MC		 923 }
924
05d2f72e 925 *p++ = OSSL_PARAM_construct_octet_string(param,
ac2d58c7
MC		 926 /*
927 * Cast away the const. This is read
928 * only so should be safe
929 */
05d2f72e
MC		 930 (unsigned char *)data,
931 (size_t)datalen);
194de849 932 *p = OSSL_PARAM_construct_end();
ac2d58c7 933
05d2f72e 934 return EVP_PKEY_CTX_set_params(ctx, octet_string_params);
ac2d58c7
MC		 935}
936
937int EVP_PKEY_CTX_set1_tls1_prf_secret(EVP_PKEY_CTX *ctx,
938 const unsigned char *sec, int seclen)
939{
05d2f72e
MC		 940 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.exchprovctx == NULL,
941 OSSL_KDF_PARAM_SECRET,
942 EVP_PKEY_OP_DERIVE,
943 EVP_PKEY_CTRL_TLS_SECRET,
944 sec, seclen);
945}
ac2d58c7 946
05d2f72e
MC		 947int EVP_PKEY_CTX_add1_tls1_prf_seed(EVP_PKEY_CTX *ctx,
948 const unsigned char *seed, int seedlen)
949{
950 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.exchprovctx == NULL,
951 OSSL_KDF_PARAM_SEED,
952 EVP_PKEY_OP_DERIVE,
953 EVP_PKEY_CTRL_TLS_SEED,
954 seed, seedlen);
955}
ac2d58c7 956
05d2f72e
MC		 957int EVP_PKEY_CTX_set_hkdf_md(EVP_PKEY_CTX *ctx, const EVP_MD *md)
958{
959 return evp_pkey_ctx_set_md(ctx, md, ctx->op.kex.exchprovctx == NULL,
960 OSSL_KDF_PARAM_DIGEST,
961 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_HKDF_MD);
962}
ac2d58c7 963
05d2f72e
MC		 964int EVP_PKEY_CTX_set1_hkdf_salt(EVP_PKEY_CTX *ctx,
965 const unsigned char *salt, int saltlen)
966{
967 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.exchprovctx == NULL,
968 OSSL_KDF_PARAM_SALT,
969 EVP_PKEY_OP_DERIVE,
970 EVP_PKEY_CTRL_HKDF_SALT,
971 salt, saltlen);
972}
ac2d58c7 973
05d2f72e
MC		 974int EVP_PKEY_CTX_set1_hkdf_key(EVP_PKEY_CTX *ctx,
975 const unsigned char *key, int keylen)
976{
977 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.exchprovctx == NULL,
978 OSSL_KDF_PARAM_KEY,
979 EVP_PKEY_OP_DERIVE,
980 EVP_PKEY_CTRL_HKDF_KEY,
981 key, keylen);
982}
ac2d58c7 983
05d2f72e
MC		 984int EVP_PKEY_CTX_add1_hkdf_info(EVP_PKEY_CTX *ctx,
985 const unsigned char *info, int infolen)
986{
987 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.exchprovctx == NULL,
988 OSSL_KDF_PARAM_INFO,
989 EVP_PKEY_OP_DERIVE,
990 EVP_PKEY_CTRL_HKDF_INFO,
991 info, infolen);
ac2d58c7
MC		 992}
993
05d2f72e 994int EVP_PKEY_CTX_hkdf_mode(EVP_PKEY_CTX *ctx, int mode)
ac2d58c7 995{
05d2f72e 996 OSSL_PARAM int_params[2], *p = int_params;
ac2d58c7
MC		 997
998 if (ctx == NULL || !EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
999 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1000 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
1001 return -2;
1002 }
1003
1004 /* TODO(3.0): Remove this eventually when no more legacy */
1005 if (ctx->op.kex.exchprovctx == NULL)
1006 return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_DERIVE,
05d2f72e
MC		 1007 EVP_PKEY_CTRL_HKDF_MODE, mode, NULL);
1008
ac2d58c7 1009
05d2f72e
MC		 1010 if (mode < 0) {
1011 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_VALUE);
ac2d58c7
MC		 1012 return 0;
1013 }
1014
05d2f72e 1015 *p++ = OSSL_PARAM_construct_int(OSSL_KDF_PARAM_MODE, &mode);
194de849 1016 *p = OSSL_PARAM_construct_end();
ac2d58c7 1017
05d2f72e 1018 return EVP_PKEY_CTX_set_params(ctx, int_params);
ac2d58c7
MC		 1019}
1020
194de849
MC		 1021int EVP_PKEY_CTX_set1_pbe_pass(EVP_PKEY_CTX *ctx, const char *pass,
1022 int passlen)
1023{
1024 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.exchprovctx == NULL,
1025 OSSL_KDF_PARAM_PASSWORD,
1026 EVP_PKEY_OP_DERIVE,
1027 EVP_PKEY_CTRL_PASS,
1028 (const unsigned char *)pass, passlen);
1029}
1030
1031int EVP_PKEY_CTX_set1_scrypt_salt(EVP_PKEY_CTX *ctx,
1032 const unsigned char *salt, int saltlen)
1033{
1034 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.exchprovctx == NULL,
1035 OSSL_KDF_PARAM_SALT,
1036 EVP_PKEY_OP_DERIVE,
1037 EVP_PKEY_CTRL_SCRYPT_SALT,
1038 salt, saltlen);
1039}
1040
1041static int evp_pkey_ctx_set_uint64(EVP_PKEY_CTX *ctx, const char *param,
1042 int op, int ctrl, uint64_t val)
1043{
1044 OSSL_PARAM uint64_params[2], *p = uint64_params;
1045
1046 if (ctx == NULL || !EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
1047 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1048 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
1049 return -2;
1050 }
1051
1052 /* TODO(3.0): Remove this eventually when no more legacy */
1053 if (ctx->op.kex.exchprovctx == NULL)
1054 return EVP_PKEY_CTX_ctrl_uint64(ctx, -1, op, ctrl, val);
1055
1056 *p++ = OSSL_PARAM_construct_uint64(param, &val);
1057 *p = OSSL_PARAM_construct_end();
1058
1059 return EVP_PKEY_CTX_set_params(ctx, uint64_params);
1060}
1061
1062int EVP_PKEY_CTX_set_scrypt_N(EVP_PKEY_CTX *ctx, uint64_t n)
1063{
1064 return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_N,
1065 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_SCRYPT_N,
1066 n);
1067}
1068
1069int EVP_PKEY_CTX_set_scrypt_r(EVP_PKEY_CTX *ctx, uint64_t r)
1070{
1071 return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_R,
1072 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_SCRYPT_R,
1073 r);
1074}
1075
1076int EVP_PKEY_CTX_set_scrypt_p(EVP_PKEY_CTX *ctx, uint64_t p)
1077{
1078 return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_P,
1079 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_SCRYPT_P,
1080 p);
1081}
1082
1083int EVP_PKEY_CTX_set_scrypt_maxmem_bytes(EVP_PKEY_CTX *ctx,
1084 uint64_t maxmem_bytes)
1085{
1086 return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_MAXMEM,
1087 EVP_PKEY_OP_DERIVE,
1088 EVP_PKEY_CTRL_SCRYPT_MAXMEM_BYTES,
1089 maxmem_bytes);
1090}
1091
5d51925a
MC		 1092int EVP_PKEY_CTX_set_mac_key(EVP_PKEY_CTX *ctx, const unsigned char *key,
1093 int keylen)
1094{
1095 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.keymgmt.genctx == NULL,
1096 OSSL_PKEY_PARAM_PRIV_KEY,
1097 EVP_PKEY_OP_KEYGEN,
1098 EVP_PKEY_CTRL_SET_MAC_KEY,
1099 key, keylen);
1100}
1101
8d6481f5
RL		 1102int evp_pkey_ctx_set1_id_prov(EVP_PKEY_CTX *ctx, const void *id, int len)
1103{
1104 OSSL_PARAM params[2], *p = params;
1105 int ret;
1106
1107 if (!EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
1108 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1109 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
1110 return -2;
1111 }
1112
1113 *p++ = OSSL_PARAM_construct_octet_string(OSSL_PKEY_PARAM_DIST_ID,
1114 /*
1115 * Cast away the const. This is
1116 * read only so should be safe
1117 */
1118 (void *)id, (size_t)len);
1119 *p++ = OSSL_PARAM_construct_end();
1120
1121 ret = evp_pkey_ctx_set_params_strict(ctx, params);
1122 if (ret == -2)
1123 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1124 return ret;
1125}
1126
1127int EVP_PKEY_CTX_set1_id(EVP_PKEY_CTX *ctx, const void *id, int len)
1128{
1129 return EVP_PKEY_CTX_ctrl(ctx, -1, -1,
1130 EVP_PKEY_CTRL_SET1_ID, (int)len, (void*)(id));
1131}
1132
1133static int get1_id_data(EVP_PKEY_CTX *ctx, void *id, size_t *id_len)
1134{
1135 int ret;
1136 void *tmp_id = NULL;
1137 OSSL_PARAM params[2], *p = params;
1138
1139 if (!EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
1140 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1141 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
1142 return -2;
1143 }
1144
1145 *p++ = OSSL_PARAM_construct_octet_ptr(OSSL_PKEY_PARAM_DIST_ID,
1146 &tmp_id, 0);
1147 *p++ = OSSL_PARAM_construct_end();
1148
1149 ret = evp_pkey_ctx_get_params_strict(ctx, params);
1150 if (ret == -2) {
1151 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1152 } else if (ret > 0) {
1153 size_t tmp_id_len = params[0].return_size;
1154
1155 if (id != NULL)
1156 memcpy(id, tmp_id, tmp_id_len);
1157 if (id_len != NULL)
1158 *id_len = tmp_id_len;
1159 }
1160 return ret;
1161}
1162
1163int evp_pkey_ctx_get1_id_prov(EVP_PKEY_CTX *ctx, void *id)
1164{
1165 return get1_id_data(ctx, id, NULL);
1166}
1167
1168int evp_pkey_ctx_get1_id_len_prov(EVP_PKEY_CTX *ctx, size_t *id_len)
1169{
1170 return get1_id_data(ctx, NULL, id_len);
1171}
1172
1173int EVP_PKEY_CTX_get1_id(EVP_PKEY_CTX *ctx, void *id)
1174{
1175 return EVP_PKEY_CTX_ctrl(ctx, -1, -1, EVP_PKEY_CTRL_GET1_ID, 0, (void*)id);
1176}
1177
1178int EVP_PKEY_CTX_get1_id_len(EVP_PKEY_CTX *ctx, size_t *id_len)
1179{
1180 return EVP_PKEY_CTX_ctrl(ctx, -1, -1,
1181 EVP_PKEY_CTRL_GET1_ID_LEN, 0, (void*)id_len);
1182}
1183
35aca9ec
MC		 1184static int legacy_ctrl_to_param(EVP_PKEY_CTX *ctx, int keytype, int optype,
1185 int cmd, int p1, void *p2)
1186{
86df26b3
RL		 1187 switch (cmd) {
1188 case EVP_PKEY_CTRL_SET1_ID:
1189 return evp_pkey_ctx_set1_id_prov(ctx, p2, p1);
1190 case EVP_PKEY_CTRL_GET1_ID:
1191 return evp_pkey_ctx_get1_id_prov(ctx, p2);
1192 case EVP_PKEY_CTRL_GET1_ID_LEN:
1193 return evp_pkey_ctx_get1_id_len_prov(ctx, p2);
1194 }
1195
e683582b 1196# ifndef OPENSSL_NO_DH
116d2510
SL		 1197 if (keytype == EVP_PKEY_DHX) {
1198 switch (cmd) {
1199 case EVP_PKEY_CTRL_DH_KDF_TYPE:
1200 return EVP_PKEY_CTX_set_dh_kdf_type(ctx, p1);
1201 case EVP_PKEY_CTRL_DH_KDF_MD:
1202 return EVP_PKEY_CTX_set_dh_kdf_md(ctx, p2);
1203 case EVP_PKEY_CTRL_DH_KDF_OUTLEN:
1204 return EVP_PKEY_CTX_set_dh_kdf_outlen(ctx, p1);
1205 case EVP_PKEY_CTRL_DH_KDF_UKM:
1206 return EVP_PKEY_CTX_set0_dh_kdf_ukm(ctx, p2, p1);
1207 case EVP_PKEY_CTRL_DH_KDF_OID:
1208 return EVP_PKEY_CTX_set0_dh_kdf_oid(ctx, p2);
1209 case EVP_PKEY_CTRL_GET_DH_KDF_MD:
1210 return EVP_PKEY_CTX_get_dh_kdf_md(ctx, p2);
1211 case EVP_PKEY_CTRL_GET_DH_KDF_OUTLEN:
1212 return EVP_PKEY_CTX_get_dh_kdf_outlen(ctx, p2);
1213 case EVP_PKEY_CTRL_GET_DH_KDF_UKM:
1214 return EVP_PKEY_CTX_get0_dh_kdf_ukm(ctx, p2);
1215 case EVP_PKEY_CTRL_GET_DH_KDF_OID:
1216 return EVP_PKEY_CTX_get0_dh_kdf_oid(ctx, p2);
1217 }
1218 }
4fe54d67
NT		 1219 if (keytype == EVP_PKEY_DH) {
1220 switch (cmd) {
1221 case EVP_PKEY_CTRL_DH_PAD:
1222 return EVP_PKEY_CTX_set_dh_pad(ctx, p1);
7165593c
SL		 1223 case EVP_PKEY_CTRL_DH_PARAMGEN_PRIME_LEN:
1224 return EVP_PKEY_CTX_set_dh_paramgen_prime_len(ctx, p1);
1225 case EVP_PKEY_CTRL_DH_PARAMGEN_SUBPRIME_LEN:
1226 return EVP_PKEY_CTX_set_dh_paramgen_subprime_len(ctx, p1);
1227 case EVP_PKEY_CTRL_DH_PARAMGEN_GENERATOR:
1228 return EVP_PKEY_CTX_set_dh_paramgen_generator(ctx, p1);
1229 case EVP_PKEY_CTRL_DH_PARAMGEN_TYPE:
1230 return EVP_PKEY_CTX_set_dh_paramgen_type(ctx, p1);
1231 case EVP_PKEY_CTRL_DH_RFC5114:
1232 return EVP_PKEY_CTX_set_dh_rfc5114(ctx, p1);
4fe54d67
NT		 1233 }
1234 }
1235# endif
b03ec3b5
SL		 1236# ifndef OPENSSL_NO_DSA
1237 if (keytype == EVP_PKEY_DSA) {
1238 switch (cmd) {
1239 case EVP_PKEY_CTRL_DSA_PARAMGEN_BITS:
1240 return EVP_PKEY_CTX_set_dsa_paramgen_bits(ctx, p1);
1241 case EVP_PKEY_CTRL_DSA_PARAMGEN_Q_BITS:
1242 return EVP_PKEY_CTX_set_dsa_paramgen_q_bits(ctx, p1);
1243 case EVP_PKEY_CTRL_DSA_PARAMGEN_MD:
1244 return EVP_PKEY_CTX_set_dsa_paramgen_md(ctx, p2);
1245 }
1246 }
1247# endif
4fe54d67
NT		 1248# ifndef OPENSSL_NO_EC
1249 if (keytype == EVP_PKEY_EC) {
1250 switch (cmd) {
10d756a7
RL		 1251 case EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID:
1252 return EVP_PKEY_CTX_set_ec_paramgen_curve_nid(ctx, p1);
6f4b7663
RL		 1253 case EVP_PKEY_CTRL_EC_ECDH_COFACTOR:
1254 if (p1 == -2) {
1255 return EVP_PKEY_CTX_get_ecdh_cofactor_mode(ctx);
1256 } else if (p1 < -1 || p1 > 1) {
1257 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
1258 return -2;
1259 } else {
1260 return EVP_PKEY_CTX_set_ecdh_cofactor_mode(ctx, p1);
1261 }
1262 case EVP_PKEY_CTRL_EC_KDF_TYPE:
1263 if (p1 == -2) {
1264 return EVP_PKEY_CTX_get_ecdh_kdf_type(ctx);
1265 } else {
1266 return EVP_PKEY_CTX_set_ecdh_kdf_type(ctx, p1);
1267 }
1268 case EVP_PKEY_CTRL_GET_EC_KDF_MD:
1269 return EVP_PKEY_CTX_get_ecdh_kdf_md(ctx, p2);
1270 case EVP_PKEY_CTRL_EC_KDF_MD:
1271 return EVP_PKEY_CTX_set_ecdh_kdf_md(ctx, p2);
1272 case EVP_PKEY_CTRL_GET_EC_KDF_OUTLEN:
1273 return EVP_PKEY_CTX_get_ecdh_kdf_outlen(ctx, p2);
1274 case EVP_PKEY_CTRL_EC_KDF_OUTLEN:
1275 return EVP_PKEY_CTX_set_ecdh_kdf_outlen(ctx, p1);
1276 case EVP_PKEY_CTRL_GET_EC_KDF_UKM:
1277 return EVP_PKEY_CTX_get0_ecdh_kdf_ukm(ctx, p2);
1278 case EVP_PKEY_CTRL_EC_KDF_UKM:
1279 return EVP_PKEY_CTX_set0_ecdh_kdf_ukm(ctx, p2, p1);
4fe54d67
NT		 1280 }
1281 }
e683582b 1282# endif
2decdad3
RL		 1283 if (keytype == EVP_PKEY_RSA) {
1284 switch (cmd) {
1285 case EVP_PKEY_CTRL_RSA_OAEP_MD:
1286 return EVP_PKEY_CTX_set_rsa_oaep_md(ctx, p2);
1287 case EVP_PKEY_CTRL_GET_RSA_OAEP_MD:
1288 return EVP_PKEY_CTX_get_rsa_oaep_md(ctx, p2);
1289 case EVP_PKEY_CTRL_RSA_MGF1_MD:
1290 return EVP_PKEY_CTX_set_rsa_oaep_md(ctx, p2);
1291 case EVP_PKEY_CTRL_RSA_OAEP_LABEL:
1292 return EVP_PKEY_CTX_set0_rsa_oaep_label(ctx, p2, p1);
1293 case EVP_PKEY_CTRL_GET_RSA_OAEP_LABEL:
1294 return EVP_PKEY_CTX_get0_rsa_oaep_label(ctx, (unsigned char **)p2);
1295 case EVP_PKEY_CTRL_RSA_KEYGEN_BITS:
1296 return EVP_PKEY_CTX_set_rsa_keygen_bits(ctx, p1);
1297 case EVP_PKEY_CTRL_RSA_KEYGEN_PUBEXP:
1298 return EVP_PKEY_CTX_set_rsa_keygen_pubexp(ctx, p2);
1299 case EVP_PKEY_CTRL_RSA_KEYGEN_PRIMES:
1300 return EVP_PKEY_CTX_set_rsa_keygen_primes(ctx, p1);
1301 }
1302 }
1303 /*
1304 * keytype == -1 is used when several key types share the same structure,
1305 * or for generic controls that are the same across multiple key types.
1306 */
4fe54d67 1307 if (keytype == -1) {
ac2d58c7
MC		 1308 if (optype == EVP_PKEY_OP_DERIVE) {
1309 switch (cmd) {
05d2f72e 1310 /* TLS1-PRF */
ac2d58c7
MC		 1311 case EVP_PKEY_CTRL_TLS_MD:
1312 return EVP_PKEY_CTX_set_tls1_prf_md(ctx, p2);
1313 case EVP_PKEY_CTRL_TLS_SECRET:
1314 return EVP_PKEY_CTX_set1_tls1_prf_secret(ctx, p2, p1);
1315 case EVP_PKEY_CTRL_TLS_SEED:
1316 return EVP_PKEY_CTX_add1_tls1_prf_seed(ctx, p2, p1);
05d2f72e
MC		 1317
1318 /* HKDF */
1319 case EVP_PKEY_CTRL_HKDF_MD:
1320 return EVP_PKEY_CTX_set_hkdf_md(ctx, p2);
1321 case EVP_PKEY_CTRL_HKDF_SALT :
1322 return EVP_PKEY_CTX_set1_hkdf_salt(ctx, p2, p1);
1323 case EVP_PKEY_CTRL_HKDF_KEY:
1324 return EVP_PKEY_CTX_set1_hkdf_key(ctx, p2, p1);
1325 case EVP_PKEY_CTRL_HKDF_INFO:
1326 return EVP_PKEY_CTX_add1_hkdf_info(ctx, p2, p1);
1327 case EVP_PKEY_CTRL_HKDF_MODE:
1328 return EVP_PKEY_CTX_hkdf_mode(ctx, p1);
194de849
MC		 1329
1330 /* Scrypt */
1331 case EVP_PKEY_CTRL_PASS:
1332 return EVP_PKEY_CTX_set1_pbe_pass(ctx, p2, p1);
1333 case EVP_PKEY_CTRL_SCRYPT_SALT:
1334 return EVP_PKEY_CTX_set1_scrypt_salt(ctx, p2, p1);
1335 case EVP_PKEY_CTRL_SCRYPT_N:
1336 return EVP_PKEY_CTX_set_scrypt_N(ctx, p1);
1337 case EVP_PKEY_CTRL_SCRYPT_R:
1338 return EVP_PKEY_CTX_set_scrypt_r(ctx, p1);
1339 case EVP_PKEY_CTRL_SCRYPT_P:
1340 return EVP_PKEY_CTX_set_scrypt_p(ctx, p1);
1341 case EVP_PKEY_CTRL_SCRYPT_MAXMEM_BYTES:
1342 return EVP_PKEY_CTX_set_scrypt_maxmem_bytes(ctx, p1);
ac2d58c7 1343 }
a540ef90
MC		 1344 } else if (optype == EVP_PKEY_OP_KEYGEN) {
1345 OSSL_PARAM params[2], *p = params;
1346
1347 switch (cmd) {
1348 case EVP_PKEY_CTRL_CIPHER:
1349 {
1350 char *ciphname = (char *)EVP_CIPHER_name(p2);
1351
1352 *p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_CIPHER,
1353 ciphname, 0);
1354 *p = OSSL_PARAM_construct_end();
1355
1356 return EVP_PKEY_CTX_set_params(ctx, params);
1357 }
1358 case EVP_PKEY_CTRL_SET_MAC_KEY:
1359 {
1360 *p++ = OSSL_PARAM_construct_octet_string(OSSL_PKEY_PARAM_PRIV_KEY,
1361 p2, p1);
1362 *p = OSSL_PARAM_construct_end();
1363
1364 return EVP_PKEY_CTX_set_params(ctx, params);
1365 }
1366 }
ac2d58c7 1367 }
4fe54d67 1368 switch (cmd) {
6f4b7663
RL		 1369 case EVP_PKEY_CTRL_MD:
1370 return EVP_PKEY_CTX_set_signature_md(ctx, p2);
1371 case EVP_PKEY_CTRL_GET_MD:
1372 return EVP_PKEY_CTX_get_signature_md(ctx, p2);
1373 case EVP_PKEY_CTRL_RSA_PADDING:
1374 return EVP_PKEY_CTX_set_rsa_padding(ctx, p1);
1375 case EVP_PKEY_CTRL_GET_RSA_PADDING:
1376 return EVP_PKEY_CTX_get_rsa_padding(ctx, p2);
6f4b7663
RL		 1377 case EVP_PKEY_CTRL_GET_RSA_MGF1_MD:
1378 return EVP_PKEY_CTX_get_rsa_oaep_md(ctx, p2);
6f4b7663
RL		 1379 case EVP_PKEY_CTRL_RSA_PSS_SALTLEN:
1380 return EVP_PKEY_CTX_set_rsa_pss_saltlen(ctx, p1);
1381 case EVP_PKEY_CTRL_GET_RSA_PSS_SALTLEN:
1382 return EVP_PKEY_CTX_get_rsa_pss_saltlen(ctx, p2);
1383 case EVP_PKEY_CTRL_PKCS7_ENCRYPT:
1384 case EVP_PKEY_CTRL_PKCS7_DECRYPT:
e683582b 1385# ifndef OPENSSL_NO_CMS
6f4b7663
RL		 1386 case EVP_PKEY_CTRL_CMS_DECRYPT:
1387 case EVP_PKEY_CTRL_CMS_ENCRYPT:
e683582b 1388# endif
cc572c25
RL		 1389 /* TODO (3.0) Temporary hack, this should probe */
1390 if (!EVP_PKEY_is_a(EVP_PKEY_CTX_get0_pkey(ctx), "RSASSA-PSS"))
6f4b7663
RL		 1391 return 1;
1392 ERR_raise(ERR_LIB_EVP,
1393 EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
1394 return -2;
4fe54d67 1395 }
35aca9ec 1396 }
a540ef90
MC		 1397
1398 /*
1399 * GOST CMS format is different for different cipher algorithms.
1400 * Most of other algorithms don't have such a difference
1401 * so this ctrl is just ignored.
1402 */
1403 if (cmd == EVP_PKEY_CTRL_CIPHER)
1404 return -2;
1405
35aca9ec
MC		 1406 return 0;
1407}
1408
86df26b3
RL		 1409static int evp_pkey_ctx_ctrl_int(EVP_PKEY_CTX *ctx, int keytype, int optype,
1410 int cmd, int p1, void *p2)
0f113f3e 1411{
86df26b3 1412 int ret = 0;
4803717f 1413
35aca9ec 1414 if (ctx == NULL) {
86df26b3 1415 EVPerr(0, EVP_R_COMMAND_NOT_SUPPORTED);
35aca9ec
MC		 1416 return -2;
1417 }
1418
86df26b3
RL		 1419 /*
1420 * If the method has a |digest_custom| function, we can relax the
1421 * operation type check, since this can be called before the operation
1422 * is initialized.
1423 */
1424 if (ctx->pmeth == NULL || ctx->pmeth->digest_custom == NULL) {
1425 if (ctx->operation == EVP_PKEY_OP_UNDEFINED) {
1426 EVPerr(0, EVP_R_NO_OPERATION_SET);
1427 return -1;
1428 }
35aca9ec 1429
86df26b3
RL		 1430 if ((optype != -1) && !(ctx->operation & optype)) {
1431 EVPerr(0, EVP_R_INVALID_OPERATION);
1432 return -1;
1433 }
0f113f3e 1434 }
0f113f3e 1435
86df26b3
RL		 1436 switch (evp_pkey_ctx_state(ctx)) {
1437 case EVP_PKEY_STATE_PROVIDER:
1438 return legacy_ctrl_to_param(ctx, keytype, optype, cmd, p1, p2);
1439 case EVP_PKEY_STATE_UNKNOWN:
1440 case EVP_PKEY_STATE_LEGACY:
1441 if (ctx->pmeth == NULL || ctx->pmeth->ctrl == NULL) {
1442 EVPerr(0, EVP_R_COMMAND_NOT_SUPPORTED);
1443 return -2;
1444 }
1445 if ((keytype != -1) && (ctx->pmeth->pkey_id != keytype))
1446 return -1;
4803717f 1447
86df26b3 1448 ret = ctx->pmeth->ctrl(ctx, cmd, p1, p2);
0f113f3e 1449
86df26b3
RL		 1450 if (ret == -2)
1451 EVPerr(0, EVP_R_COMMAND_NOT_SUPPORTED);
1452 break;
0f113f3e 1453 }
86df26b3
RL		 1454 return ret;
1455}
0f113f3e 1456
86df26b3
RL		 1457int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype,
1458 int cmd, int p1, void *p2)
1459{
1460 int ret = 0;
1461
1462 /* If unsupported, we don't want that reported here */
1463 ERR_set_mark();
1464 ret = evp_pkey_ctx_store_cached_data(ctx, keytype, optype,
1465 cmd, NULL, p2, p1);
1466 if (ret == -2) {
1467 ERR_pop_to_mark();
1468 } else {
1469 ERR_clear_last_mark();
1470 /*
1471 * If there was an error, there was an error.
1472 * If the operation isn't initialized yet, we also return, as
1473 * the saved values will be used then anyway.
1474 */
1475 if (ret < 1 || ctx->operation == EVP_PKEY_OP_UNDEFINED)
1476 return ret;
1477 }
0f113f3e 1478
86df26b3 1479 return evp_pkey_ctx_ctrl_int(ctx, keytype, optype, cmd, p1, p2);
0f113f3e 1480}
0b6f3c66 1481
cefa762e 1482int EVP_PKEY_CTX_ctrl_uint64(EVP_PKEY_CTX *ctx, int keytype, int optype,
64bf1016 1483 int cmd, uint64_t value)
cefa762e
JB		 1484{
1485 return EVP_PKEY_CTX_ctrl(ctx, keytype, optype, cmd, 0, &value);
1486}
1487
35aca9ec
MC		 1488static int legacy_ctrl_str_to_param(EVP_PKEY_CTX *ctx, const char *name,
1489 const char *value)
1490{
ac2d58c7
MC		 1491 if (strcmp(name, "md") == 0)
1492 name = OSSL_ALG_PARAM_DIGEST;
1493 else if (strcmp(name, "rsa_padding_mode") == 0)
972fa318
RL		 1494 name = OSSL_ASYM_CIPHER_PARAM_PAD_MODE;
1495 else if (strcmp(name, "rsa_mgf1_md") == 0)
1496 name = OSSL_ASYM_CIPHER_PARAM_MGF1_DIGEST;
1497 else if (strcmp(name, "rsa_oaep_md") == 0)
1498 name = OSSL_ASYM_CIPHER_PARAM_OAEP_DIGEST;
1499 else if (strcmp(name, "rsa_oaep_label") == 0)
1500 name = OSSL_ASYM_CIPHER_PARAM_OAEP_LABEL;
6f4b7663
RL		 1501 else if (strcmp(name, "rsa_pss_saltlen") == 0)
1502 name = OSSL_SIGNATURE_PARAM_PSS_SALTLEN;
2972af10
RL		 1503 else if (strcmp(name, "rsa_keygen_bits") == 0)
1504 name = OSSL_PKEY_PARAM_RSA_BITS;
1505 else if (strcmp(name, "rsa_keygen_pubexp") == 0)
1506 name = OSSL_PKEY_PARAM_RSA_E;
1507 else if (strcmp(name, "rsa_keygen_primes") == 0)
1508 name = OSSL_PKEY_PARAM_RSA_PRIMES;
e25761b1
RL		 1509 else if (strcmp(name, "rsa_pss_keygen_md") == 0)
1510 name = OSSL_PKEY_PARAM_RSA_DIGEST;
1511 else if (strcmp(name, "rsa_pss_keygen_mgf1_md") == 0)
1512 name = OSSL_PKEY_PARAM_RSA_MGF1_DIGEST;
1513 else if (strcmp(name, "rsa_pss_keygen_saltlen") == 0)
1514 name = OSSL_PKEY_PARAM_RSA_PSS_SALTLEN;
b03ec3b5
SL		 1515# ifndef OPENSSL_NO_DSA
1516 else if (strcmp(name, "dsa_paramgen_bits") == 0)
1517 name = OSSL_PKEY_PARAM_FFC_PBITS;
1518 else if (strcmp(name, "dsa_paramgen_q_bits") == 0)
1519 name = OSSL_PKEY_PARAM_FFC_QBITS;
1520 else if (strcmp(name, "dsa_paramgen_md") == 0)
1521 name = OSSL_PKEY_PARAM_FFC_DIGEST;
1522# endif
e683582b 1523# ifndef OPENSSL_NO_DH
7165593c 1524 else if (strcmp(name, "dh_paramgen_generator") == 0)
b8086652 1525 name = OSSL_PKEY_PARAM_DH_GENERATOR;
7165593c
SL		 1526 else if (strcmp(name, "dh_paramgen_prime_len") == 0)
1527 name = OSSL_PKEY_PARAM_FFC_PBITS;
1528 else if (strcmp(name, "dh_paramgen_subprime_len") == 0)
1529 name = OSSL_PKEY_PARAM_FFC_QBITS;
1530 else if (strcmp(name, "dh_paramgen_type") == 0) {
1531 name = OSSL_PKEY_PARAM_FFC_TYPE;
1532 value = dh_gen_type_id2name(atoi(value));
1533 } else if (strcmp(name, "dh_param") == 0)
023b188c 1534 name = OSSL_PKEY_PARAM_GROUP_NAME;
7165593c 1535 else if (strcmp(name, "dh_rfc5114") == 0) {
023b188c 1536 name = OSSL_PKEY_PARAM_GROUP_NAME;
7165593c
SL		 1537 value = ffc_named_group_from_uid(atoi(value));
1538 } else if (strcmp(name, "dh_pad") == 0)
972fa318 1539 name = OSSL_EXCHANGE_PARAM_PAD;
e683582b 1540# endif
4fe54d67 1541# ifndef OPENSSL_NO_EC
10d756a7 1542 else if (strcmp(name, "ec_paramgen_curve") == 0)
11a1b341 1543 name = OSSL_PKEY_PARAM_GROUP_NAME;
4fe54d67
NT		 1544 else if (strcmp(name, "ecdh_cofactor_mode") == 0)
1545 name = OSSL_EXCHANGE_PARAM_EC_ECDH_COFACTOR_MODE;
1546 else if (strcmp(name, "ecdh_kdf_md") == 0)
f552d900 1547 name = OSSL_EXCHANGE_PARAM_KDF_DIGEST;
c0f39ded
SL		 1548 else if (strcmp(name, "ec_param_enc") == 0)
1549 name = OSSL_PKEY_PARAM_EC_ENCODING;
4fe54d67 1550# endif
194de849
MC		 1551 else if (strcmp(name, "N") == 0)
1552 name = OSSL_KDF_PARAM_SCRYPT_N;
89abd1b6 1553
972fa318
RL		 1554 {
1555 /*
1556 * TODO(3.0) reduce the code above to only translate known legacy
1557 * string to the corresponding core name (see core_names.h), but
1558 * otherwise leave it to this code block to do the actual work.
1559 */
1560 const OSSL_PARAM *settable = EVP_PKEY_CTX_settable_params(ctx);
1561 OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
1562 int rv = 0;
292c8bdc 1563 int exists = 0;
89abd1b6 1564
972fa318 1565 if (!OSSL_PARAM_allocate_from_text(&params[0], settable, name, value,
292c8bdc
P		 1566 strlen(value), &exists)) {
1567 if (!exists) {
e25761b1
RL		 1568 ERR_raise_data(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED,
1569 "name=%s,value=%s", name, value);
292c8bdc
P		 1570 return -2;
1571 }
89abd1b6 1572 return 0;
292c8bdc 1573 }
972fa318
RL		 1574 if (EVP_PKEY_CTX_set_params(ctx, params))
1575 rv = 1;
1576 OPENSSL_free(params[0].data);
1577 return rv;
89abd1b6 1578 }
35aca9ec
MC		 1579}
1580
86df26b3
RL		 1581static int evp_pkey_ctx_ctrl_str_int(EVP_PKEY_CTX *ctx,
1582 const char *name, const char *value)
0f113f3e 1583{
86df26b3
RL		 1584 int ret = 0;
1585
35aca9ec 1586 if (ctx == NULL) {
86df26b3 1587 EVPerr(0, EVP_R_COMMAND_NOT_SUPPORTED);
35aca9ec
MC		 1588 return -2;
1589 }
1590
86df26b3
RL		 1591 switch (evp_pkey_ctx_state(ctx)) {
1592 case EVP_PKEY_STATE_PROVIDER:
35aca9ec 1593 return legacy_ctrl_str_to_param(ctx, name, value);
86df26b3
RL		 1594 case EVP_PKEY_STATE_UNKNOWN:
1595 case EVP_PKEY_STATE_LEGACY:
1596 if (ctx == NULL || ctx->pmeth == NULL || ctx->pmeth->ctrl_str == NULL) {
1597 EVPerr(0, EVP_R_COMMAND_NOT_SUPPORTED);
1598 return -2;
1599 }
1600 if (strcmp(name, "digest") == 0)
b9689452
RL		 1601 ret = EVP_PKEY_CTX_md(ctx,
1602 EVP_PKEY_OP_TYPE_SIG | EVP_PKEY_OP_TYPE_CRYPT,
86df26b3
RL		 1603 EVP_PKEY_CTRL_MD, value);
1604 else
1605 ret = ctx->pmeth->ctrl_str(ctx, name, value);
1606 break;
1607 }
35aca9ec 1608
86df26b3
RL		 1609 return ret;
1610}
1611
1612int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX *ctx,
1613 const char *name, const char *value)
1614{
1615 int ret = 0;
1616
1617 /* If unsupported, we don't want that reported here */
1618 ERR_set_mark();
1619 ret = evp_pkey_ctx_store_cached_data(ctx, -1, -1, -1,
1620 name, value, strlen(value) + 1);
1621 if (ret == -2) {
1622 ERR_pop_to_mark();
1623 } else {
1624 ERR_clear_last_mark();
1625 /*
1626 * If there was an error, there was an error.
1627 * If the operation isn't initialized yet, we also return, as
1628 * the saved values will be used then anyway.
1629 */
1630 if (ret < 1 || ctx->operation == EVP_PKEY_OP_UNDEFINED)
1631 return ret;
1632 }
1633
1634 return evp_pkey_ctx_ctrl_str_int(ctx, name, value);
1635}
1636
1637static int decode_cmd(int cmd, const char *name)
1638{
1639 if (cmd == -1) {
1640 /*
1641 * The consequence of the assertion not being true is that this
1642 * function will return -1, which will cause the calling functions
1643 * to signal that the command is unsupported... in non-debug mode.
1644 */
1645 if (ossl_assert(name != NULL))
1646 if (strcmp(name, "distid") == 0 || strcmp(name, "hexdistid") == 0)
1647 cmd = EVP_PKEY_CTRL_SET1_ID;
1648 }
1649
1650 return cmd;
1651}
1652
1653static int evp_pkey_ctx_store_cached_data(EVP_PKEY_CTX *ctx,
1654 int keytype, int optype,
1655 int cmd, const char *name,
1656 const void *data, size_t data_len)
1657{
1658 if ((keytype != -1 && ctx->pmeth->pkey_id != keytype)
1659 || ((optype != -1) && !(ctx->operation & optype))) {
1660 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION);
1661 return -1;
0f113f3e 1662 }
86df26b3
RL		 1663
1664 cmd = decode_cmd(cmd, name);
1665 switch (cmd) {
1666 case EVP_PKEY_CTRL_SET1_ID:
1667 evp_pkey_ctx_free_cached_data(ctx, cmd, name);
1668 if (name != NULL) {
1669 ctx->cached_parameters.dist_id_name = OPENSSL_strdup(name);
1670 if (ctx->cached_parameters.dist_id_name == NULL) {
1671 ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
1672 return 0;
1673 }
1674 }
1675 if (data_len > 0) {
1676 ctx->cached_parameters.dist_id = OPENSSL_memdup(data, data_len);
1677 if (ctx->cached_parameters.dist_id == NULL) {
1678 ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
1679 return 0;
1680 }
1681 }
1682 ctx->cached_parameters.dist_id_set = 1;
1683 ctx->cached_parameters.dist_id_len = data_len;
1684 return 1;
1685 }
1686
1687 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1688 return -2;
1689}
1690
1691static void evp_pkey_ctx_free_cached_data(EVP_PKEY_CTX *ctx,
1692 int cmd, const char *name)
1693{
1694 cmd = decode_cmd(cmd, name);
1695 switch (cmd) {
1696 case EVP_PKEY_CTRL_SET1_ID:
1697 OPENSSL_free(ctx->cached_parameters.dist_id);
1698 OPENSSL_free(ctx->cached_parameters.dist_id_name);
1699 ctx->cached_parameters.dist_id = NULL;
1700 ctx->cached_parameters.dist_id_name = NULL;
1701 break;
1702 }
1703}
1704
1705static void evp_pkey_ctx_free_all_cached_data(EVP_PKEY_CTX *ctx)
1706{
1707 evp_pkey_ctx_free_cached_data(ctx, EVP_PKEY_CTRL_SET1_ID, NULL);
1708}
1709
1710int evp_pkey_ctx_use_cached_data(EVP_PKEY_CTX *ctx)
1711{
1712 int ret = 1;
1713
1714 if (ret && ctx->cached_parameters.dist_id_set) {
1715 const char *name = ctx->cached_parameters.dist_id_name;
1716 const void *val = ctx->cached_parameters.dist_id;
1717 size_t len = ctx->cached_parameters.dist_id_len;
1718
1719 if (name != NULL)
1720 ret = evp_pkey_ctx_ctrl_str_int(ctx, name, val);
1721 else
1722 ret = evp_pkey_ctx_ctrl_int(ctx, -1, ctx->operation,
1723 EVP_PKEY_CTRL_SET1_ID,
1724 (int)len, (void *)val);
1725 }
1726
1727 return ret;
0f113f3e 1728}
f5cda4cb 1729
99119000
DSH		 1730/* Utility functions to send a string of hex string to a ctrl */
1731
1732int EVP_PKEY_CTX_str2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *str)
1733{
1734 size_t len;
1735
1736 len = strlen(str);
1737 if (len > INT_MAX)
1738 return -1;
1739 return ctx->pmeth->ctrl(ctx, cmd, len, (void *)str);
1740}
1741
1742int EVP_PKEY_CTX_hex2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *hex)
1743{
1744 unsigned char *bin;
1745 long binlen;
1746 int rv = -1;
1747
14f051a0 1748 bin = OPENSSL_hexstr2buf(hex, &binlen);
99119000
DSH		 1749 if (bin == NULL)
1750 return 0;
1751 if (binlen <= INT_MAX)
1752 rv = ctx->pmeth->ctrl(ctx, cmd, binlen, bin);
1753 OPENSSL_free(bin);
1754 return rv;
1755}
52ad523c 1756
410877ba
DSH		 1757/* Pass a message digest to a ctrl */
1758int EVP_PKEY_CTX_md(EVP_PKEY_CTX *ctx, int optype, int cmd, const char *md)
1759{
1760 const EVP_MD *m;
c82bafc5 1761
410877ba
DSH		 1762 if (md == NULL || (m = EVP_get_digestbyname(md)) == NULL) {
1763 EVPerr(EVP_F_EVP_PKEY_CTX_MD, EVP_R_INVALID_DIGEST);
1764 return 0;
1765 }
1766 return EVP_PKEY_CTX_ctrl(ctx, -1, optype, cmd, 0, (void *)m);
1767}
99119000 1768
b28dea4e 1769int EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 1770{
1771 return ctx->operation;
1772}
b28dea4e
DSH		 1773
1774void EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX *ctx, int *dat, int datlen)
0f113f3e
MC		 1775{
1776 ctx->keygen_info = dat;
1777 ctx->keygen_info_count = datlen;
1778}
b28dea4e 1779
f5cda4cb 1780void EVP_PKEY_CTX_set_data(EVP_PKEY_CTX *ctx, void *data)
0f113f3e
MC		 1781{
1782 ctx->data = data;
1783}
f5cda4cb 1784
9fdcc21f 1785void *EVP_PKEY_CTX_get_data(const EVP_PKEY_CTX *ctx)
0f113f3e
MC		 1786{
1787 return ctx->data;
1788}
f5cda4cb 1789
81cebb8b 1790EVP_PKEY *EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 1791{
1792 return ctx->pkey;
1793}
81cebb8b 1794
0e1dba93 1795EVP_PKEY *EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 1796{
1797 return ctx->peerkey;
1798}
1799
f5cda4cb 1800void EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX *ctx, void *data)
0f113f3e
MC		 1801{
1802 ctx->app_data = data;
1803}
f5cda4cb
DSH		 1804
1805void *EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 1806{
1807 return ctx->app_data;
1808}
ba30bad5
DSH		 1809
1810void EVP_PKEY_meth_set_init(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1811 int (*init) (EVP_PKEY_CTX *ctx))
1812{
1813 pmeth->init = init;
1814}
8bdcef40
DSH		 1815
1816void EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD *pmeth,
0f113f3e 1817 int (*copy) (EVP_PKEY_CTX *dst,
9fdcc21f 1818 const EVP_PKEY_CTX *src))
0f113f3e
MC		 1819{
1820 pmeth->copy = copy;
1821}
ba30bad5
DSH		 1822
1823void EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1824 void (*cleanup) (EVP_PKEY_CTX *ctx))
1825{
1826 pmeth->cleanup = cleanup;
1827}
ba30bad5
DSH		 1828
1829void EVP_PKEY_meth_set_paramgen(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1830 int (*paramgen_init) (EVP_PKEY_CTX *ctx),
1831 int (*paramgen) (EVP_PKEY_CTX *ctx,
1832 EVP_PKEY *pkey))
1833{
1834 pmeth->paramgen_init = paramgen_init;
1835 pmeth->paramgen = paramgen;
1836}
ba30bad5
DSH		 1837
1838void EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1839 int (*keygen_init) (EVP_PKEY_CTX *ctx),
1840 int (*keygen) (EVP_PKEY_CTX *ctx,
1841 EVP_PKEY *pkey))
1842{
1843 pmeth->keygen_init = keygen_init;
1844 pmeth->keygen = keygen;
1845}
ba30bad5
DSH		 1846
1847void EVP_PKEY_meth_set_sign(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1848 int (*sign_init) (EVP_PKEY_CTX *ctx),
1849 int (*sign) (EVP_PKEY_CTX *ctx,
1850 unsigned char *sig, size_t *siglen,
1851 const unsigned char *tbs,
1852 size_t tbslen))
1853{
1854 pmeth->sign_init = sign_init;
1855 pmeth->sign = sign;
1856}
ba30bad5
DSH		 1857
1858void EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1859 int (*verify_init) (EVP_PKEY_CTX *ctx),
1860 int (*verify) (EVP_PKEY_CTX *ctx,
1861 const unsigned char *sig,
1862 size_t siglen,
1863 const unsigned char *tbs,
1864 size_t tbslen))
1865{
1866 pmeth->verify_init = verify_init;
1867 pmeth->verify = verify;
1868}
ba30bad5
DSH		 1869
1870void EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1871 int (*verify_recover_init) (EVP_PKEY_CTX
1872 *ctx),
1873 int (*verify_recover) (EVP_PKEY_CTX
1874 *ctx,
1875 unsigned char
1876 *sig,
1877 size_t *siglen,
1878 const unsigned
1879 char *tbs,
1880 size_t tbslen))
1881{
1882 pmeth->verify_recover_init = verify_recover_init;
1883 pmeth->verify_recover = verify_recover;
1884}
ba30bad5
DSH		 1885
1886void EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1887 int (*signctx_init) (EVP_PKEY_CTX *ctx,
1888 EVP_MD_CTX *mctx),
1889 int (*signctx) (EVP_PKEY_CTX *ctx,
1890 unsigned char *sig,
1891 size_t *siglen,
1892 EVP_MD_CTX *mctx))
1893{
1894 pmeth->signctx_init = signctx_init;
1895 pmeth->signctx = signctx;
1896}
ba30bad5
DSH		 1897
1898void EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1899 int (*verifyctx_init) (EVP_PKEY_CTX *ctx,
1900 EVP_MD_CTX *mctx),
1901 int (*verifyctx) (EVP_PKEY_CTX *ctx,
1902 const unsigned char *sig,
1903 int siglen,
1904 EVP_MD_CTX *mctx))
1905{
1906 pmeth->verifyctx_init = verifyctx_init;
1907 pmeth->verifyctx = verifyctx;
1908}
ba30bad5
DSH		 1909
1910void EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1911 int (*encrypt_init) (EVP_PKEY_CTX *ctx),
1912 int (*encryptfn) (EVP_PKEY_CTX *ctx,
1913 unsigned char *out,
1914 size_t *outlen,
1915 const unsigned char *in,
1916 size_t inlen))
1917{
1918 pmeth->encrypt_init = encrypt_init;
1919 pmeth->encrypt = encryptfn;
1920}
ba30bad5
DSH		 1921
1922void EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1923 int (*decrypt_init) (EVP_PKEY_CTX *ctx),
1924 int (*decrypt) (EVP_PKEY_CTX *ctx,
1925 unsigned char *out,
1926 size_t *outlen,
1927 const unsigned char *in,
1928 size_t inlen))
1929{
1930 pmeth->decrypt_init = decrypt_init;
1931 pmeth->decrypt = decrypt;
1932}
ba30bad5
DSH		 1933
1934void EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1935 int (*derive_init) (EVP_PKEY_CTX *ctx),
1936 int (*derive) (EVP_PKEY_CTX *ctx,
1937 unsigned char *key,
1938 size_t *keylen))
1939{
1940 pmeth->derive_init = derive_init;
1941 pmeth->derive = derive;
1942}
ba30bad5
DSH		 1943
1944void EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 1945 int (*ctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
1946 void *p2),
1947 int (*ctrl_str) (EVP_PKEY_CTX *ctx,
1948 const char *type,
1949 const char *value))
1950{
1951 pmeth->ctrl = ctrl;
1952 pmeth->ctrl_str = ctrl_str;
1953}
e7451ed1 1954
2555285f
AH		 1955void EVP_PKEY_meth_set_digestsign(EVP_PKEY_METHOD *pmeth,
1956 int (*digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen,
1957 const unsigned char *tbs, size_t tbslen))
1958{
1959 pmeth->digestsign = digestsign;
1960}
1961
1962void EVP_PKEY_meth_set_digestverify(EVP_PKEY_METHOD *pmeth,
1963 int (*digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig,
1964 size_t siglen, const unsigned char *tbs,
1965 size_t tbslen))
1966{
1967 pmeth->digestverify = digestverify;
1968}
1969
2aee35d3
PY		 1970void EVP_PKEY_meth_set_check(EVP_PKEY_METHOD *pmeth,
1971 int (*check) (EVP_PKEY *pkey))
1972{
1973 pmeth->check = check;
1974}
1975
b0004708
PY		 1976void EVP_PKEY_meth_set_public_check(EVP_PKEY_METHOD *pmeth,
1977 int (*check) (EVP_PKEY *pkey))
1978{
1979 pmeth->public_check = check;
1980}
1981
1982void EVP_PKEY_meth_set_param_check(EVP_PKEY_METHOD *pmeth,
1983 int (*check) (EVP_PKEY *pkey))
1984{
1985 pmeth->param_check = check;
1986}
1987
0a8fdef7
PY		 1988void EVP_PKEY_meth_set_digest_custom(EVP_PKEY_METHOD *pmeth,
1989 int (*digest_custom) (EVP_PKEY_CTX *ctx,
1990 EVP_MD_CTX *mctx))
1991{
1992 pmeth->digest_custom = digest_custom;
1993}
1994
693be9a2 1995void EVP_PKEY_meth_get_init(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1996 int (**pinit) (EVP_PKEY_CTX *ctx))
1997{
1998 *pinit = pmeth->init;
1999}
2000
693be9a2 2001void EVP_PKEY_meth_get_copy(const EVP_PKEY_METHOD *pmeth,
e7451ed1 2002 int (**pcopy) (EVP_PKEY_CTX *dst,
9fdcc21f 2003 const EVP_PKEY_CTX *src))
e7451ed1
DSH		 2004{
2005 *pcopy = pmeth->copy;
2006}
2007
693be9a2 2008void EVP_PKEY_meth_get_cleanup(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 2009 void (**pcleanup) (EVP_PKEY_CTX *ctx))
2010{
2011 *pcleanup = pmeth->cleanup;
2012}
2013
693be9a2 2014void EVP_PKEY_meth_get_paramgen(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 2015 int (**pparamgen_init) (EVP_PKEY_CTX *ctx),
2016 int (**pparamgen) (EVP_PKEY_CTX *ctx,
2017 EVP_PKEY *pkey))
2018{
2019 if (pparamgen_init)
2020 *pparamgen_init = pmeth->paramgen_init;
2021 if (pparamgen)
2022 *pparamgen = pmeth->paramgen;
2023}
2024
693be9a2 2025void EVP_PKEY_meth_get_keygen(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 2026 int (**pkeygen_init) (EVP_PKEY_CTX *ctx),
2027 int (**pkeygen) (EVP_PKEY_CTX *ctx,
2028 EVP_PKEY *pkey))
2029{
2030 if (pkeygen_init)
2031 *pkeygen_init = pmeth->keygen_init;
2032 if (pkeygen)
2033 *pkeygen = pmeth->keygen;
2034}
2035
693be9a2 2036void EVP_PKEY_meth_get_sign(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 2037 int (**psign_init) (EVP_PKEY_CTX *ctx),
2038 int (**psign) (EVP_PKEY_CTX *ctx,
2039 unsigned char *sig, size_t *siglen,
2040 const unsigned char *tbs,
2041 size_t tbslen))
2042{
2043 if (psign_init)
2044 *psign_init = pmeth->sign_init;
2045 if (psign)
2046 *psign = pmeth->sign;
2047}
2048
693be9a2 2049void EVP_PKEY_meth_get_verify(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 2050 int (**pverify_init) (EVP_PKEY_CTX *ctx),
2051 int (**pverify) (EVP_PKEY_CTX *ctx,
2052 const unsigned char *sig,
2053 size_t siglen,
2054 const unsigned char *tbs,
2055 size_t tbslen))
2056{
2057 if (pverify_init)
2058 *pverify_init = pmeth->verify_init;
2059 if (pverify)
2060 *pverify = pmeth->verify;
2061}
2062
693be9a2 2063void EVP_PKEY_meth_get_verify_recover(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 2064 int (**pverify_recover_init) (EVP_PKEY_CTX
2065 *ctx),
2066 int (**pverify_recover) (EVP_PKEY_CTX
2067 *ctx,
2068 unsigned char
2069 *sig,
2070 size_t *siglen,
2071 const unsigned
2072 char *tbs,
2073 size_t tbslen))
2074{
2075 if (pverify_recover_init)
2076 *pverify_recover_init = pmeth->verify_recover_init;
2077 if (pverify_recover)
2078 *pverify_recover = pmeth->verify_recover;
2079}
2080
693be9a2 2081void EVP_PKEY_meth_get_signctx(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 2082 int (**psignctx_init) (EVP_PKEY_CTX *ctx,
2083 EVP_MD_CTX *mctx),
2084 int (**psignctx) (EVP_PKEY_CTX *ctx,
2085 unsigned char *sig,
2086 size_t *siglen,
2087 EVP_MD_CTX *mctx))
2088{
2089 if (psignctx_init)
2090 *psignctx_init = pmeth->signctx_init;
2091 if (psignctx)
2092 *psignctx = pmeth->signctx;
2093}
2094
693be9a2 2095void EVP_PKEY_meth_get_verifyctx(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 2096 int (**pverifyctx_init) (EVP_PKEY_CTX *ctx,
2097 EVP_MD_CTX *mctx),
2098 int (**pverifyctx) (EVP_PKEY_CTX *ctx,
2099 const unsigned char *sig,
2100 int siglen,
2101 EVP_MD_CTX *mctx))
2102{
2103 if (pverifyctx_init)
2104 *pverifyctx_init = pmeth->verifyctx_init;
2105 if (pverifyctx)
2106 *pverifyctx = pmeth->verifyctx;
2107}
2108
693be9a2 2109void EVP_PKEY_meth_get_encrypt(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 2110 int (**pencrypt_init) (EVP_PKEY_CTX *ctx),
2111 int (**pencryptfn) (EVP_PKEY_CTX *ctx,
2112 unsigned char *out,
2113 size_t *outlen,
2114 const unsigned char *in,
2115 size_t inlen))
2116{
2117 if (pencrypt_init)
2118 *pencrypt_init = pmeth->encrypt_init;
2119 if (pencryptfn)
2120 *pencryptfn = pmeth->encrypt;
2121}
2122
693be9a2 2123void EVP_PKEY_meth_get_decrypt(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 2124 int (**pdecrypt_init) (EVP_PKEY_CTX *ctx),
2125 int (**pdecrypt) (EVP_PKEY_CTX *ctx,
2126 unsigned char *out,
2127 size_t *outlen,
2128 const unsigned char *in,
2129 size_t inlen))
2130{
2131 if (pdecrypt_init)
2132 *pdecrypt_init = pmeth->decrypt_init;
2133 if (pdecrypt)
2134 *pdecrypt = pmeth->decrypt;
2135}
2136
693be9a2 2137void EVP_PKEY_meth_get_derive(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 2138 int (**pderive_init) (EVP_PKEY_CTX *ctx),
2139 int (**pderive) (EVP_PKEY_CTX *ctx,
2140 unsigned char *key,
2141 size_t *keylen))
2142{
2143 if (pderive_init)
2144 *pderive_init = pmeth->derive_init;
2145 if (pderive)
2146 *pderive = pmeth->derive;
2147}
2148
693be9a2 2149void EVP_PKEY_meth_get_ctrl(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 2150 int (**pctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
2151 void *p2),
2152 int (**pctrl_str) (EVP_PKEY_CTX *ctx,
2153 const char *type,
2154 const char *value))
2155{
2156 if (pctrl)
2157 *pctrl = pmeth->ctrl;
2158 if (pctrl_str)
2159 *pctrl_str = pmeth->ctrl_str;
2160}
2aee35d3 2161
2555285f
AH		 2162void EVP_PKEY_meth_get_digestsign(EVP_PKEY_METHOD *pmeth,
2163 int (**digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen,
2164 const unsigned char *tbs, size_t tbslen))
2165{
2166 if (digestsign)
2167 *digestsign = pmeth->digestsign;
2168}
2169
2170void EVP_PKEY_meth_get_digestverify(EVP_PKEY_METHOD *pmeth,
2171 int (**digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig,
2172 size_t siglen, const unsigned char *tbs,
2173 size_t tbslen))
2174{
2175 if (digestverify)
2176 *digestverify = pmeth->digestverify;
2177}
2178
693be9a2 2179void EVP_PKEY_meth_get_check(const EVP_PKEY_METHOD *pmeth,
2aee35d3
PY		 2180 int (**pcheck) (EVP_PKEY *pkey))
2181{
34f5c8b1 2182 if (pcheck != NULL)
2aee35d3
PY		 2183 *pcheck = pmeth->check;
2184}
b0004708 2185
693be9a2 2186void EVP_PKEY_meth_get_public_check(const EVP_PKEY_METHOD *pmeth,
b0004708
PY		 2187 int (**pcheck) (EVP_PKEY *pkey))
2188{
34f5c8b1 2189 if (pcheck != NULL)
b0004708
PY		 2190 *pcheck = pmeth->public_check;
2191}
2192
693be9a2 2193void EVP_PKEY_meth_get_param_check(const EVP_PKEY_METHOD *pmeth,
b0004708
PY		 2194 int (**pcheck) (EVP_PKEY *pkey))
2195{
34f5c8b1 2196 if (pcheck != NULL)
b0004708
PY		 2197 *pcheck = pmeth->param_check;
2198}
0a8fdef7
PY		 2199
2200void EVP_PKEY_meth_get_digest_custom(EVP_PKEY_METHOD *pmeth,
2201 int (**pdigest_custom) (EVP_PKEY_CTX *ctx,
2202 EVP_MD_CTX *mctx))
2203{
675f4cee 2204 if (pdigest_custom != NULL)
0a8fdef7
PY		 2205 *pdigest_custom = pmeth->digest_custom;
2206}
e683582b 2207
f844f9eb 2208#endif /* FIPS_MODULE */
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