]> git.ipfire.org Git - thirdparty/openssl.git/blame - crypto/evp/pmeth_lib.c
projects / thirdparty / openssl.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Allow strings in params to be of zero length
[thirdparty/openssl.git] / crypto / evp / pmeth_lib.c
CommitLineData
d0ea49a8 1
0f113f3e 2/*
b0edda11 3 * Copyright 2006-2018 The OpenSSL Project Authors. All Rights Reserved.
0b6f3c66 4 *
4a8b0c55 5 * Licensed under the Apache License 2.0 (the "License"). You may not use
62867571
RS		 6 * this file except in compliance with the License. You can obtain a copy
7 * in the file LICENSE in the source distribution or at
8 * https://www.openssl.org/source/license.html
0b6f3c66
DSH		 9 */
10
11#include <stdio.h>
12#include <stdlib.h>
3c27208f 13#include <openssl/engine.h>
33bed28b 14#include <openssl/evp.h>
99119000 15#include <openssl/x509v3.h>
35aca9ec
MC		 16#include <openssl/core_names.h>
17#include <openssl/dh.h>
18#include "internal/cryptlib.h"
25f2138b
DMSP		 19#include "crypto/asn1.h"
20#include "crypto/evp.h"
99119000 21#include "internal/numbers.h"
390acbeb 22#include "internal/provider.h"
706457b7 23#include "evp_local.h"
0b6f3c66 24
19bd1fa1 25typedef const EVP_PKEY_METHOD *(*pmeth_fn)(void);
0f113f3e 26typedef int sk_cmp_fn_type(const char *const *a, const char *const *b);
5ce278a7 27
df2ee0e2 28static STACK_OF(EVP_PKEY_METHOD) *app_pkey_methods = NULL;
0b6f3c66 29
cefa762e 30/* This array needs to be in order of NIDs */
19bd1fa1 31static pmeth_fn standard_methods[] = {
d4f0339c 32#ifndef OPENSSL_NO_RSA
19bd1fa1 33 rsa_pkey_method,
d4f0339c
DSH		 34#endif
35#ifndef OPENSSL_NO_DH
19bd1fa1 36 dh_pkey_method,
d4f0339c
DSH		 37#endif
38#ifndef OPENSSL_NO_DSA
19bd1fa1 39 dsa_pkey_method,
d4f0339c 40#endif
ef236ec3 41#ifndef OPENSSL_NO_EC
19bd1fa1 42 ec_pkey_method,
ef236ec3 43#endif
19bd1fa1 44 hmac_pkey_method,
b4a3aeeb 45#ifndef OPENSSL_NO_CMAC
19bd1fa1 46 cmac_pkey_method,
b4a3aeeb 47#endif
6577e008 48#ifndef OPENSSL_NO_RSA
19bd1fa1 49 rsa_pss_pkey_method,
6577e008 50#endif
afb14cda 51#ifndef OPENSSL_NO_DH
19bd1fa1 52 dhx_pkey_method,
cefa762e
JB		 53#endif
54#ifndef OPENSSL_NO_SCRYPT
19bd1fa1 55 scrypt_pkey_method,
afb14cda 56#endif
19bd1fa1 57 tls1_prf_pkey_method,
262bd85f 58#ifndef OPENSSL_NO_EC
19bd1fa1
PS		 59 ecx25519_pkey_method,
60 ecx448_pkey_method,
262bd85f 61#endif
19bd1fa1 62 hkdf_pkey_method,
52ad5b60 63#ifndef OPENSSL_NO_POLY1305
19bd1fa1 64 poly1305_pkey_method,
52ad5b60 65#endif
3f5616d7 66#ifndef OPENSSL_NO_SIPHASH
19bd1fa1 67 siphash_pkey_method,
3f5616d7 68#endif
42a3008a 69#ifndef OPENSSL_NO_EC
19bd1fa1
PS		 70 ed25519_pkey_method,
71 ed448_pkey_method,
42a3008a 72#endif
ddb634fe 73#ifndef OPENSSL_NO_SM2
19bd1fa1 74 sm2_pkey_method,
ddb634fe 75#endif
0f113f3e 76};
0b6f3c66 77
19bd1fa1
PS		 78DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, pmeth_fn, pmeth_func);
79
80static int pmeth_func_cmp(const EVP_PKEY_METHOD *const *a, pmeth_fn const *b)
81{
82 return ((*a)->pkey_id - ((**b)())->pkey_id);
83}
84
85IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, pmeth_fn, pmeth_func);
babb3798 86
0f113f3e
MC		 87static int pmeth_cmp(const EVP_PKEY_METHOD *const *a,
88 const EVP_PKEY_METHOD *const *b)
89{
90 return ((*a)->pkey_id - (*b)->pkey_id);
91}
0b6f3c66 92
c9777d26 93const EVP_PKEY_METHOD *EVP_PKEY_meth_find(int type)
0f113f3e 94{
19bd1fa1 95 pmeth_fn *ret;
0f113f3e 96 EVP_PKEY_METHOD tmp;
19bd1fa1 97 const EVP_PKEY_METHOD *t = &tmp;
12a765a5 98
0f113f3e
MC		 99 tmp.pkey_id = type;
100 if (app_pkey_methods) {
101 int idx;
102 idx = sk_EVP_PKEY_METHOD_find(app_pkey_methods, &tmp);
103 if (idx >= 0)
104 return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx);
105 }
19bd1fa1
PS		 106 ret = OBJ_bsearch_pmeth_func(&t, standard_methods,
107 sizeof(standard_methods) /
108 sizeof(pmeth_fn));
12a765a5 109 if (ret == NULL || *ret == NULL)
0f113f3e 110 return NULL;
19bd1fa1 111 return (**ret)();
0f113f3e 112}
0b6f3c66 113
3ee348b0
RL		 114static EVP_PKEY_CTX *int_ctx_new(OPENSSL_CTX *libctx,
115 EVP_PKEY *pkey, ENGINE *e,
a07c17ef
RL		 116 const char *name, const char *propquery,
117 int id)
0f113f3e
MC		 118{
119 EVP_PKEY_CTX *ret;
d0ea49a8
RL		 120 const EVP_PKEY_METHOD *pmeth = NULL;
121
122 /*
123 * When using providers, the context is bound to the algo implementation
124 * later.
125 */
126 if (pkey == NULL && e == NULL && id == -1)
127 goto common;
2f2e6b62 128
d0ea49a8
RL		 129 /* TODO(3.0) Legacy code should be removed when all is provider based */
130 /* BEGIN legacy */
0f113f3e 131 if (id == -1) {
a6465b3f
P		 132 if (pkey == NULL)
133 return 0;
2f2e6b62 134 id = pkey->type;
0f113f3e 135 }
60653e5b
RL		 136
137 /*
138 * Here, we extract what information we can for the purpose of
139 * supporting usage with implementations from providers, to make
140 * for a smooth transition from legacy stuff to provider based stuff.
141 *
142 * If an engine is given, this is entirely legacy, and we should not
143 * pretend anything else, so we only set the name when no engine is
144 * given. If both are already given, someone made a mistake, and
145 * since that can only happen internally, it's safe to make an
146 * assertion.
147 */
148 if (!ossl_assert(e == NULL || name == NULL))
149 return NULL;
150 if (e == NULL)
151 name = OBJ_nid2sn(id);
a07c17ef 152 propquery = NULL;
3ee348b0
RL		 153 /*
154 * We were called using legacy data, or an EVP_PKEY, but an EVP_PKEY
155 * isn't tied to a specific library context, so we fall back to the
156 * default library context.
157 * TODO(v3.0): an EVP_PKEY that doesn't originate from a leagacy key
158 * structure only has the pkeys[] cache, where the first element is
159 * considered the "origin". Investigate if that could be a suitable
160 * way to find a library context.
161 */
162 libctx = NULL;
60653e5b 163
a63bf2c5 164#ifndef OPENSSL_NO_ENGINE
c2976edf 165 if (e == NULL && pkey != NULL)
d19b01ad 166 e = pkey->pmeth_engine != NULL ? pkey->pmeth_engine : pkey->engine;
0f113f3e
MC		 167 /* Try to find an ENGINE which implements this method */
168 if (e) {
169 if (!ENGINE_init(e)) {
170 EVPerr(EVP_F_INT_CTX_NEW, ERR_R_ENGINE_LIB);
171 return NULL;
172 }
c2976edf 173 } else {
0f113f3e 174 e = ENGINE_get_pkey_meth_engine(id);
c2976edf 175 }
0f113f3e
MC		 176
177 /*
0d4fb843 178 * If an ENGINE handled this method look it up. Otherwise use internal
0f113f3e
MC		 179 * tables.
180 */
0f113f3e
MC		 181 if (e)
182 pmeth = ENGINE_get_pkey_meth(e, id);
183 else
a63bf2c5 184#endif
0f113f3e 185 pmeth = EVP_PKEY_meth_find(id);
c9777d26 186
0f113f3e 187 if (pmeth == NULL) {
918a27fa
DSH		 188#ifndef OPENSSL_NO_ENGINE
189 ENGINE_finish(e);
190#endif
0f113f3e
MC		 191 EVPerr(EVP_F_INT_CTX_NEW, EVP_R_UNSUPPORTED_ALGORITHM);
192 return NULL;
193 }
d0ea49a8 194 /* END legacy */
c9777d26 195
d0ea49a8 196 common:
64b25758 197 ret = OPENSSL_zalloc(sizeof(*ret));
90945fa3 198 if (ret == NULL) {
a63bf2c5 199#ifndef OPENSSL_NO_ENGINE
7c96dbcd 200 ENGINE_finish(e);
a63bf2c5 201#endif
0f113f3e
MC		 202 EVPerr(EVP_F_INT_CTX_NEW, ERR_R_MALLOC_FAILURE);
203 return NULL;
204 }
3ee348b0 205 ret->libctx = libctx;
a07c17ef
RL		 206 ret->algorithm = name;
207 ret->propquery = propquery;
0f113f3e
MC		 208 ret->engine = e;
209 ret->pmeth = pmeth;
210 ret->operation = EVP_PKEY_OP_UNDEFINED;
211 ret->pkey = pkey;
a6465b3f 212 if (pkey != NULL)
03273d61 213 EVP_PKEY_up_ref(pkey);
0f113f3e 214
8b84b075 215 if (pmeth != NULL && pmeth->init != NULL) {
0f113f3e 216 if (pmeth->init(ret) <= 0) {
83b4049a 217 ret->pmeth = NULL;
0f113f3e
MC		 218 EVP_PKEY_CTX_free(ret);
219 return NULL;
220 }
221 }
222
223 return ret;
224}
225
864b89ce
MC		 226void evp_pkey_ctx_free_old_ops(EVP_PKEY_CTX *ctx)
227{
228 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
229 if (ctx->op.kex.exchprovctx != NULL && ctx->op.kex.exchange != NULL)
230 ctx->op.kex.exchange->freectx(ctx->op.kex.exchprovctx);
231 EVP_KEYEXCH_free(ctx->op.kex.exchange);
fb1ecf85
RL		 232 ctx->op.kex.exchprovctx = NULL;
233 ctx->op.kex.exchange = NULL;
864b89ce
MC		 234 } else if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
235 if (ctx->op.sig.sigprovctx != NULL && ctx->op.sig.signature != NULL)
236 ctx->op.sig.signature->freectx(ctx->op.sig.sigprovctx);
237 EVP_SIGNATURE_free(ctx->op.sig.signature);
fb1ecf85
RL		 238 ctx->op.sig.sigprovctx = NULL;
239 ctx->op.sig.signature = NULL;
864b89ce
MC		 240 }
241}
242
0f113f3e
MC		 243EVP_PKEY_METHOD *EVP_PKEY_meth_new(int id, int flags)
244{
245 EVP_PKEY_METHOD *pmeth;
b4faea50 246
b51bce94 247 pmeth = OPENSSL_zalloc(sizeof(*pmeth));
3484236d
F		 248 if (pmeth == NULL) {
249 EVPerr(EVP_F_EVP_PKEY_METH_NEW, ERR_R_MALLOC_FAILURE);
0f113f3e 250 return NULL;
3484236d 251 }
0f113f3e 252
0f113f3e
MC		 253 pmeth->pkey_id = id;
254 pmeth->flags = flags | EVP_PKEY_FLAG_DYNAMIC;
0f113f3e
MC		 255 return pmeth;
256}
ba30bad5 257
f830c68f 258void EVP_PKEY_meth_get0_info(int *ppkey_id, int *pflags,
0f113f3e
MC		 259 const EVP_PKEY_METHOD *meth)
260{
261 if (ppkey_id)
262 *ppkey_id = meth->pkey_id;
263 if (pflags)
264 *pflags = meth->flags;
265}
f830c68f
DSH		 266
267void EVP_PKEY_meth_copy(EVP_PKEY_METHOD *dst, const EVP_PKEY_METHOD *src)
0f113f3e 268{
f830c68f 269
0f113f3e
MC		 270 dst->init = src->init;
271 dst->copy = src->copy;
272 dst->cleanup = src->cleanup;
f830c68f 273
0f113f3e
MC		 274 dst->paramgen_init = src->paramgen_init;
275 dst->paramgen = src->paramgen;
f830c68f 276
0f113f3e
MC		 277 dst->keygen_init = src->keygen_init;
278 dst->keygen = src->keygen;
f830c68f 279
0f113f3e
MC		 280 dst->sign_init = src->sign_init;
281 dst->sign = src->sign;
f830c68f 282
0f113f3e
MC		 283 dst->verify_init = src->verify_init;
284 dst->verify = src->verify;
f830c68f 285
0f113f3e
MC		 286 dst->verify_recover_init = src->verify_recover_init;
287 dst->verify_recover = src->verify_recover;
f830c68f 288
0f113f3e
MC		 289 dst->signctx_init = src->signctx_init;
290 dst->signctx = src->signctx;
f830c68f 291
0f113f3e
MC		 292 dst->verifyctx_init = src->verifyctx_init;
293 dst->verifyctx = src->verifyctx;
f830c68f 294
0f113f3e
MC		 295 dst->encrypt_init = src->encrypt_init;
296 dst->encrypt = src->encrypt;
f830c68f 297
0f113f3e
MC		 298 dst->decrypt_init = src->decrypt_init;
299 dst->decrypt = src->decrypt;
f830c68f 300
0f113f3e
MC		 301 dst->derive_init = src->derive_init;
302 dst->derive = src->derive;
f830c68f 303
0f113f3e
MC		 304 dst->ctrl = src->ctrl;
305 dst->ctrl_str = src->ctrl_str;
2aee35d3
PY		 306
307 dst->check = src->check;
0f113f3e 308}
f830c68f 309
ba30bad5 310void EVP_PKEY_meth_free(EVP_PKEY_METHOD *pmeth)
0f113f3e
MC		 311{
312 if (pmeth && (pmeth->flags & EVP_PKEY_FLAG_DYNAMIC))
313 OPENSSL_free(pmeth);
314}
ba30bad5 315
f5cda4cb 316EVP_PKEY_CTX *EVP_PKEY_CTX_new(EVP_PKEY *pkey, ENGINE *e)
0f113f3e 317{
3ee348b0 318 return int_ctx_new(NULL, pkey, e, NULL, NULL, -1);
0f113f3e 319}
f5cda4cb
DSH		 320
321EVP_PKEY_CTX *EVP_PKEY_CTX_new_id(int id, ENGINE *e)
0f113f3e 322{
3ee348b0 323 return int_ctx_new(NULL, NULL, e, NULL, NULL, id);
a07c17ef
RL		 324}
325
3ee348b0
RL		 326EVP_PKEY_CTX *EVP_PKEY_CTX_new_provided(OPENSSL_CTX *libctx,
327 const char *name,
a07c17ef
RL		 328 const char *propquery)
329{
3ee348b0 330 return int_ctx_new(libctx, NULL, NULL, name, propquery, -1);
0f113f3e 331}
f5cda4cb 332
9fdcc21f 333EVP_PKEY_CTX *EVP_PKEY_CTX_dup(const EVP_PKEY_CTX *pctx)
0f113f3e
MC		 334{
335 EVP_PKEY_CTX *rctx;
ff64702b
MC		 336
337 if (((pctx->pmeth == NULL) || (pctx->pmeth->copy == NULL))
864b89ce
MC		 338 && ((EVP_PKEY_CTX_IS_DERIVE_OP(pctx)
339 && pctx->op.kex.exchprovctx == NULL)
340 || (EVP_PKEY_CTX_IS_SIGNATURE_OP(pctx)
341 && pctx->op.sig.sigprovctx == NULL)))
0f113f3e 342 return NULL;
c9777d26 343#ifndef OPENSSL_NO_ENGINE
0f113f3e
MC		 344 /* Make sure it's safe to copy a pkey context using an ENGINE */
345 if (pctx->engine && !ENGINE_init(pctx->engine)) {
346 EVPerr(EVP_F_EVP_PKEY_CTX_DUP, ERR_R_ENGINE_LIB);
347 return 0;
348 }
c9777d26 349#endif
ff64702b 350 rctx = OPENSSL_zalloc(sizeof(*rctx));
3484236d
F		 351 if (rctx == NULL) {
352 EVPerr(EVP_F_EVP_PKEY_CTX_DUP, ERR_R_MALLOC_FAILURE);
0f113f3e 353 return NULL;
3484236d 354 }
8bdcef40 355
ff64702b
MC		 356 if (pctx->pkey != NULL)
357 EVP_PKEY_up_ref(pctx->pkey);
358 rctx->pkey = pctx->pkey;
359 rctx->operation = pctx->operation;
3ee348b0 360 rctx->libctx = pctx->libctx;
a07c17ef
RL		 361 rctx->algorithm = pctx->algorithm;
362 rctx->propquery = pctx->propquery;
ff64702b 363
864b89ce
MC		 364 if (EVP_PKEY_CTX_IS_DERIVE_OP(pctx)) {
365 if (pctx->op.kex.exchange != NULL) {
366 rctx->op.kex.exchange = pctx->op.kex.exchange;
367 if (!EVP_KEYEXCH_up_ref(rctx->op.kex.exchange)) {
368 OPENSSL_free(rctx);
369 return NULL;
370 }
ff64702b 371 }
864b89ce
MC		 372 if (pctx->op.kex.exchprovctx != NULL) {
373 if (!ossl_assert(pctx->op.kex.exchange != NULL))
374 return NULL;
375 rctx->op.kex.exchprovctx
376 = pctx->op.kex.exchange->dupctx(pctx->op.kex.exchprovctx);
377 if (rctx->op.kex.exchprovctx == NULL) {
378 EVP_KEYEXCH_free(rctx->op.kex.exchange);
379 OPENSSL_free(rctx);
380 return NULL;
381 }
382 return rctx;
383 }
384 } else if (EVP_PKEY_CTX_IS_SIGNATURE_OP(pctx)) {
385 if (pctx->op.sig.signature != NULL) {
386 rctx->op.sig.signature = pctx->op.sig.signature;
387 if (!EVP_SIGNATURE_up_ref(rctx->op.sig.signature)) {
388 OPENSSL_free(rctx);
389 return NULL;
390 }
391 }
392 if (pctx->op.sig.sigprovctx != NULL) {
393 if (!ossl_assert(pctx->op.sig.signature != NULL))
394 return NULL;
395 rctx->op.sig.sigprovctx
396 = pctx->op.sig.signature->dupctx(pctx->op.sig.sigprovctx);
397 if (rctx->op.sig.sigprovctx == NULL) {
398 EVP_SIGNATURE_free(rctx->op.sig.signature);
399 OPENSSL_free(rctx);
400 return NULL;
401 }
402 return rctx;
ff64702b 403 }
ff64702b
MC		 404 }
405
0f113f3e 406 rctx->pmeth = pctx->pmeth;
c9777d26 407#ifndef OPENSSL_NO_ENGINE
0f113f3e 408 rctx->engine = pctx->engine;
c9777d26 409#endif
8bdcef40 410
0f113f3e 411 if (pctx->peerkey)
03273d61 412 EVP_PKEY_up_ref(pctx->peerkey);
0f113f3e 413 rctx->peerkey = pctx->peerkey;
8bdcef40 414
0f113f3e
MC		 415 if (pctx->pmeth->copy(rctx, pctx) > 0)
416 return rctx;
8bdcef40 417
83b4049a 418 rctx->pmeth = NULL;
0f113f3e
MC		 419 EVP_PKEY_CTX_free(rctx);
420 return NULL;
8bdcef40 421
0f113f3e 422}
8bdcef40 423
ba30bad5 424int EVP_PKEY_meth_add0(const EVP_PKEY_METHOD *pmeth)
0f113f3e
MC		 425{
426 if (app_pkey_methods == NULL) {
427 app_pkey_methods = sk_EVP_PKEY_METHOD_new(pmeth_cmp);
3484236d
F		 428 if (app_pkey_methods == NULL){
429 EVPerr(EVP_F_EVP_PKEY_METH_ADD0, ERR_R_MALLOC_FAILURE);
0f113f3e 430 return 0;
3484236d 431 }
0f113f3e 432 }
3484236d
F		 433 if (!sk_EVP_PKEY_METHOD_push(app_pkey_methods, pmeth)) {
434 EVPerr(EVP_F_EVP_PKEY_METH_ADD0, ERR_R_MALLOC_FAILURE);
0f113f3e 435 return 0;
3484236d 436 }
0f113f3e
MC		 437 sk_EVP_PKEY_METHOD_sort(app_pkey_methods);
438 return 1;
439}
ba30bad5 440
0822e89a
PY		 441void evp_app_cleanup_int(void)
442{
443 if (app_pkey_methods != NULL)
444 sk_EVP_PKEY_METHOD_pop_free(app_pkey_methods, EVP_PKEY_meth_free);
445}
446
447int EVP_PKEY_meth_remove(const EVP_PKEY_METHOD *pmeth)
448{
449 const EVP_PKEY_METHOD *ret;
450
451 ret = sk_EVP_PKEY_METHOD_delete_ptr(app_pkey_methods, pmeth);
452
453 return ret == NULL ? 0 : 1;
454}
455
48ed9c23
DSH		 456size_t EVP_PKEY_meth_get_count(void)
457{
458 size_t rv = OSSL_NELEM(standard_methods);
459
460 if (app_pkey_methods)
461 rv += sk_EVP_PKEY_METHOD_num(app_pkey_methods);
462 return rv;
463}
464
465const EVP_PKEY_METHOD *EVP_PKEY_meth_get0(size_t idx)
466{
467 if (idx < OSSL_NELEM(standard_methods))
19bd1fa1 468 return (standard_methods[idx])();
48ed9c23
DSH		 469 if (app_pkey_methods == NULL)
470 return NULL;
471 idx -= OSSL_NELEM(standard_methods);
472 if (idx >= (size_t)sk_EVP_PKEY_METHOD_num(app_pkey_methods))
473 return NULL;
474 return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx);
475}
476
5da98aa6 477void EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 478{
479 if (ctx == NULL)
480 return;
481 if (ctx->pmeth && ctx->pmeth->cleanup)
482 ctx->pmeth->cleanup(ctx);
ff64702b 483
864b89ce 484 evp_pkey_ctx_free_old_ops(ctx);
c0e0984f 485 EVP_KEYMGMT_free(ctx->keymgmt);
dfcb5d29 486
c5ba2d99
RS		 487 EVP_PKEY_free(ctx->pkey);
488 EVP_PKEY_free(ctx->peerkey);
c9777d26 489#ifndef OPENSSL_NO_ENGINE
7c96dbcd 490 ENGINE_finish(ctx->engine);
c9777d26 491#endif
0f113f3e
MC		 492 OPENSSL_free(ctx);
493}
5da98aa6 494
9c45222d
MC		 495int EVP_PKEY_CTX_get_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
496{
864b89ce
MC		 497 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
498 && ctx->op.sig.sigprovctx != NULL
499 && ctx->op.sig.signature != NULL
500 && ctx->op.sig.signature->get_ctx_params != NULL)
501 return ctx->op.sig.signature->get_ctx_params(ctx->op.sig.sigprovctx,
502 params);
9c45222d
MC		 503 return 0;
504}
505
506const OSSL_PARAM *EVP_PKEY_CTX_gettable_params(EVP_PKEY_CTX *ctx)
507{
864b89ce
MC		 508 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
509 && ctx->op.sig.signature != NULL
510 && ctx->op.sig.signature->gettable_ctx_params != NULL)
511 return ctx->op.sig.signature->gettable_ctx_params();
9c45222d
MC		 512
513 return NULL;
514}
515
35aca9ec
MC		 516int EVP_PKEY_CTX_set_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
517{
864b89ce
MC		 518 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
519 && ctx->op.kex.exchprovctx != NULL
520 && ctx->op.kex.exchange != NULL
521 && ctx->op.kex.exchange->set_ctx_params != NULL)
522 return ctx->op.kex.exchange->set_ctx_params(ctx->op.kex.exchprovctx,
523 params);
524 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
525 && ctx->op.sig.sigprovctx != NULL
526 && ctx->op.sig.signature != NULL
527 && ctx->op.sig.signature->set_ctx_params != NULL)
528 return ctx->op.sig.signature->set_ctx_params(ctx->op.sig.sigprovctx,
529 params);
35aca9ec
MC		 530 return 0;
531}
532
9c45222d
MC		 533const OSSL_PARAM *EVP_PKEY_CTX_settable_params(EVP_PKEY_CTX *ctx)
534{
864b89ce
MC		 535 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
536 && ctx->op.kex.exchange != NULL
537 && ctx->op.kex.exchange->settable_ctx_params != NULL)
538 return ctx->op.kex.exchange->settable_ctx_params();
539 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
540 && ctx->op.sig.signature != NULL
541 && ctx->op.sig.signature->settable_ctx_params != NULL)
542 return ctx->op.sig.signature->settable_ctx_params();
9c45222d
MC		 543
544 return NULL;
545}
546
76ca35e7 547#ifndef OPENSSL_NO_DH
35aca9ec
MC		 548int EVP_PKEY_CTX_set_dh_pad(EVP_PKEY_CTX *ctx, int pad)
549{
550 OSSL_PARAM dh_pad_params[2];
1c3ace68 551 unsigned int upad = pad;
35aca9ec 552
864b89ce
MC		 553 /* We use EVP_PKEY_CTX_ctrl return values */
554 if (ctx == NULL || !EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
555 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
556 return -2;
557 }
558
35aca9ec 559 /* TODO(3.0): Remove this eventually when no more legacy */
864b89ce 560 if (ctx->op.kex.exchprovctx == NULL)
35aca9ec
MC		 561 return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DH, EVP_PKEY_OP_DERIVE,
562 EVP_PKEY_CTRL_DH_PAD, pad, NULL);
563
1c3ace68 564 dh_pad_params[0] = OSSL_PARAM_construct_uint(OSSL_EXCHANGE_PARAM_PAD, &upad);
35aca9ec
MC		 565 dh_pad_params[1] = OSSL_PARAM_construct_end();
566
567 return EVP_PKEY_CTX_set_params(ctx, dh_pad_params);
568}
76ca35e7 569#endif
35aca9ec 570
9c45222d
MC		 571int EVP_PKEY_CTX_get_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD **md)
572{
573 OSSL_PARAM sig_md_params[3], *p = sig_md_params;
574 /* 80 should be big enough */
575 char name[80] = "";
576 const EVP_MD *tmp;
577
864b89ce 578 if (ctx == NULL || !EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
9c45222d
MC		 579 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
580 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
581 return -2;
582 }
583
584 /* TODO(3.0): Remove this eventually when no more legacy */
864b89ce 585 if (ctx->op.sig.sigprovctx == NULL)
9c45222d
MC		 586 return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG,
587 EVP_PKEY_CTRL_GET_MD, 0, (void *)(md));
588
589 *p++ = OSSL_PARAM_construct_utf8_string(OSSL_SIGNATURE_PARAM_DIGEST,
590 name,
591 sizeof(name));
592 *p++ = OSSL_PARAM_construct_end();
593
594 if (!EVP_PKEY_CTX_get_params(ctx, sig_md_params))
595 return 0;
596
7606bed9 597 tmp = evp_get_digestbyname_ex(ctx->libctx, name);
9c45222d
MC		 598 if (tmp == NULL)
599 return 0;
600
601 *md = tmp;
602
603 return 1;
604}
605
4889dadc
MC		 606int EVP_PKEY_CTX_set_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD *md)
607{
9c45222d 608 OSSL_PARAM sig_md_params[3], *p = sig_md_params;
4889dadc
MC		 609 size_t mdsize;
610 const char *name;
611
864b89ce 612 if (ctx == NULL || !EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
9c45222d
MC		 613 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
614 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
615 return -2;
616 }
617
4889dadc 618 /* TODO(3.0): Remove this eventually when no more legacy */
864b89ce 619 if (ctx->op.sig.sigprovctx == NULL)
4889dadc
MC		 620 return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG,
621 EVP_PKEY_CTRL_MD, 0, (void *)(md));
622
9c45222d
MC		 623 if (md == NULL) {
624 name = "";
625 mdsize = 0;
626 } else {
627 mdsize = EVP_MD_size(md);
628 name = EVP_MD_name(md);
629 }
4889dadc 630
9c45222d
MC		 631 *p++ = OSSL_PARAM_construct_utf8_string(OSSL_SIGNATURE_PARAM_DIGEST,
632 /*
633 * Cast away the const. This is read
634 * only so should be safe
635 */
636 (char *)name,
637 strlen(name) + 1);
638 *p++ = OSSL_PARAM_construct_size_t(OSSL_SIGNATURE_PARAM_DIGEST_SIZE,
639 &mdsize);
640 *p++ = OSSL_PARAM_construct_end();
4889dadc 641
9c45222d 642 return EVP_PKEY_CTX_set_params(ctx, sig_md_params);
4889dadc
MC		 643}
644
35aca9ec
MC		 645static int legacy_ctrl_to_param(EVP_PKEY_CTX *ctx, int keytype, int optype,
646 int cmd, int p1, void *p2)
647{
648 switch (cmd) {
76ca35e7 649#ifndef OPENSSL_NO_DH
35aca9ec
MC		 650 case EVP_PKEY_CTRL_DH_PAD:
651 return EVP_PKEY_CTX_set_dh_pad(ctx, p1);
76ca35e7 652#endif
390acbeb
MC		 653 case EVP_PKEY_CTRL_MD:
654 return EVP_PKEY_CTX_set_signature_md(ctx, p2);
864b89ce
MC		 655 case EVP_PKEY_CTRL_GET_MD:
656 return EVP_PKEY_CTX_get_signature_md(ctx, p2);
35aca9ec
MC		 657 }
658 return 0;
659}
660
0b6f3c66 661int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype,
0f113f3e
MC		 662 int cmd, int p1, void *p2)
663{
664 int ret;
4803717f 665
35aca9ec
MC		 666 if (ctx == NULL) {
667 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED);
668 return -2;
669 }
670
864b89ce 671 if ((EVP_PKEY_CTX_IS_DERIVE_OP(ctx) && ctx->op.kex.exchprovctx != NULL)
48bb9792 672 || (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
864b89ce 673 && ctx->op.sig.sigprovctx != NULL))
35aca9ec
MC		 674 return legacy_ctrl_to_param(ctx, keytype, optype, cmd, p1, p2);
675
676 if (ctx->pmeth == NULL || ctx->pmeth->ctrl == NULL) {
0f113f3e
MC		 677 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED);
678 return -2;
679 }
680 if ((keytype != -1) && (ctx->pmeth->pkey_id != keytype))
681 return -1;
682
4803717f
PY		 683 /* Skip the operation checks since this is called in a very early stage */
684 if (ctx->pmeth->digest_custom != NULL)
685 goto doit;
686
0f113f3e
MC		 687 if (ctx->operation == EVP_PKEY_OP_UNDEFINED) {
688 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_NO_OPERATION_SET);
689 return -1;
690 }
691
692 if ((optype != -1) && !(ctx->operation & optype)) {
693 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_INVALID_OPERATION);
694 return -1;
695 }
696
4803717f 697 doit:
0f113f3e
MC		 698 ret = ctx->pmeth->ctrl(ctx, cmd, p1, p2);
699
700 if (ret == -2)
701 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED);
702
703 return ret;
0f113f3e 704}
0b6f3c66 705
cefa762e 706int EVP_PKEY_CTX_ctrl_uint64(EVP_PKEY_CTX *ctx, int keytype, int optype,
64bf1016 707 int cmd, uint64_t value)
cefa762e
JB		 708{
709 return EVP_PKEY_CTX_ctrl(ctx, keytype, optype, cmd, 0, &value);
710}
711
35aca9ec
MC		 712static int legacy_ctrl_str_to_param(EVP_PKEY_CTX *ctx, const char *name,
713 const char *value)
714{
76ca35e7 715#ifndef OPENSSL_NO_DH
35aca9ec
MC		 716 if (strcmp(name, "dh_pad") == 0) {
717 int pad;
718
719 pad = atoi(value);
720 return EVP_PKEY_CTX_set_dh_pad(ctx, pad);
721 }
76ca35e7 722#endif
390acbeb
MC		 723 if (strcmp(name, "digest") == 0) {
724 int ret;
864b89ce
MC		 725 EVP_MD *md;
726
727 if (!EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) || ctx->op.sig.signature == NULL)
728 return 0;
729 md = EVP_MD_fetch(ossl_provider_library_context(ctx->op.sig.signature->prov),
730 value, NULL);
390acbeb
MC		 731 if (md == NULL)
732 return 0;
733 ret = EVP_PKEY_CTX_set_signature_md(ctx, md);
734 EVP_MD_meth_free(md);
735 return ret;
736 }
737
35aca9ec
MC		 738 return 0;
739}
740
4a3dc3c0 741int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX *ctx,
0f113f3e
MC		 742 const char *name, const char *value)
743{
35aca9ec
MC		 744 if (ctx == NULL) {
745 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR, EVP_R_COMMAND_NOT_SUPPORTED);
746 return -2;
747 }
748
864b89ce
MC		 749 if ((EVP_PKEY_CTX_IS_DERIVE_OP(ctx) && ctx->op.kex.exchprovctx != NULL)
750 || (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
751 && ctx->op.sig.sigprovctx != NULL))
35aca9ec
MC		 752 return legacy_ctrl_str_to_param(ctx, name, value);
753
0f113f3e
MC		 754 if (!ctx || !ctx->pmeth || !ctx->pmeth->ctrl_str) {
755 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR, EVP_R_COMMAND_NOT_SUPPORTED);
756 return -2;
757 }
410877ba
DSH		 758 if (strcmp(name, "digest") == 0)
759 return EVP_PKEY_CTX_md(ctx, EVP_PKEY_OP_TYPE_SIG, EVP_PKEY_CTRL_MD,
760 value);
0f113f3e
MC		 761 return ctx->pmeth->ctrl_str(ctx, name, value);
762}
f5cda4cb 763
99119000
DSH		 764/* Utility functions to send a string of hex string to a ctrl */
765
766int EVP_PKEY_CTX_str2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *str)
767{
768 size_t len;
769
770 len = strlen(str);
771 if (len > INT_MAX)
772 return -1;
773 return ctx->pmeth->ctrl(ctx, cmd, len, (void *)str);
774}
775
776int EVP_PKEY_CTX_hex2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *hex)
777{
778 unsigned char *bin;
779 long binlen;
780 int rv = -1;
781
14f051a0 782 bin = OPENSSL_hexstr2buf(hex, &binlen);
99119000
DSH		 783 if (bin == NULL)
784 return 0;
785 if (binlen <= INT_MAX)
786 rv = ctx->pmeth->ctrl(ctx, cmd, binlen, bin);
787 OPENSSL_free(bin);
788 return rv;
789}
52ad523c 790
410877ba
DSH		 791/* Pass a message digest to a ctrl */
792int EVP_PKEY_CTX_md(EVP_PKEY_CTX *ctx, int optype, int cmd, const char *md)
793{
794 const EVP_MD *m;
c82bafc5 795
410877ba
DSH		 796 if (md == NULL || (m = EVP_get_digestbyname(md)) == NULL) {
797 EVPerr(EVP_F_EVP_PKEY_CTX_MD, EVP_R_INVALID_DIGEST);
798 return 0;
799 }
800 return EVP_PKEY_CTX_ctrl(ctx, -1, optype, cmd, 0, (void *)m);
801}
99119000 802
b28dea4e 803int EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 804{
805 return ctx->operation;
806}
b28dea4e
DSH		 807
808void EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX *ctx, int *dat, int datlen)
0f113f3e
MC		 809{
810 ctx->keygen_info = dat;
811 ctx->keygen_info_count = datlen;
812}
b28dea4e 813
f5cda4cb 814void EVP_PKEY_CTX_set_data(EVP_PKEY_CTX *ctx, void *data)
0f113f3e
MC		 815{
816 ctx->data = data;
817}
f5cda4cb 818
9fdcc21f 819void *EVP_PKEY_CTX_get_data(const EVP_PKEY_CTX *ctx)
0f113f3e
MC		 820{
821 return ctx->data;
822}
f5cda4cb 823
81cebb8b 824EVP_PKEY *EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 825{
826 return ctx->pkey;
827}
81cebb8b 828
0e1dba93 829EVP_PKEY *EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 830{
831 return ctx->peerkey;
832}
833
f5cda4cb 834void EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX *ctx, void *data)
0f113f3e
MC		 835{
836 ctx->app_data = data;
837}
f5cda4cb
DSH		 838
839void *EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 840{
841 return ctx->app_data;
842}
ba30bad5
DSH		 843
844void EVP_PKEY_meth_set_init(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 845 int (*init) (EVP_PKEY_CTX *ctx))
846{
847 pmeth->init = init;
848}
8bdcef40
DSH		 849
850void EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD *pmeth,
0f113f3e 851 int (*copy) (EVP_PKEY_CTX *dst,
9fdcc21f 852 const EVP_PKEY_CTX *src))
0f113f3e
MC		 853{
854 pmeth->copy = copy;
855}
ba30bad5
DSH		 856
857void EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 858 void (*cleanup) (EVP_PKEY_CTX *ctx))
859{
860 pmeth->cleanup = cleanup;
861}
ba30bad5
DSH		 862
863void EVP_PKEY_meth_set_paramgen(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 864 int (*paramgen_init) (EVP_PKEY_CTX *ctx),
865 int (*paramgen) (EVP_PKEY_CTX *ctx,
866 EVP_PKEY *pkey))
867{
868 pmeth->paramgen_init = paramgen_init;
869 pmeth->paramgen = paramgen;
870}
ba30bad5
DSH		 871
872void EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 873 int (*keygen_init) (EVP_PKEY_CTX *ctx),
874 int (*keygen) (EVP_PKEY_CTX *ctx,
875 EVP_PKEY *pkey))
876{
877 pmeth->keygen_init = keygen_init;
878 pmeth->keygen = keygen;
879}
ba30bad5
DSH		 880
881void EVP_PKEY_meth_set_sign(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 882 int (*sign_init) (EVP_PKEY_CTX *ctx),
883 int (*sign) (EVP_PKEY_CTX *ctx,
884 unsigned char *sig, size_t *siglen,
885 const unsigned char *tbs,
886 size_t tbslen))
887{
888 pmeth->sign_init = sign_init;
889 pmeth->sign = sign;
890}
ba30bad5
DSH		 891
892void EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 893 int (*verify_init) (EVP_PKEY_CTX *ctx),
894 int (*verify) (EVP_PKEY_CTX *ctx,
895 const unsigned char *sig,
896 size_t siglen,
897 const unsigned char *tbs,
898 size_t tbslen))
899{
900 pmeth->verify_init = verify_init;
901 pmeth->verify = verify;
902}
ba30bad5
DSH		 903
904void EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 905 int (*verify_recover_init) (EVP_PKEY_CTX
906 *ctx),
907 int (*verify_recover) (EVP_PKEY_CTX
908 *ctx,
909 unsigned char
910 *sig,
911 size_t *siglen,
912 const unsigned
913 char *tbs,
914 size_t tbslen))
915{
916 pmeth->verify_recover_init = verify_recover_init;
917 pmeth->verify_recover = verify_recover;
918}
ba30bad5
DSH		 919
920void EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 921 int (*signctx_init) (EVP_PKEY_CTX *ctx,
922 EVP_MD_CTX *mctx),
923 int (*signctx) (EVP_PKEY_CTX *ctx,
924 unsigned char *sig,
925 size_t *siglen,
926 EVP_MD_CTX *mctx))
927{
928 pmeth->signctx_init = signctx_init;
929 pmeth->signctx = signctx;
930}
ba30bad5
DSH		 931
932void EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 933 int (*verifyctx_init) (EVP_PKEY_CTX *ctx,
934 EVP_MD_CTX *mctx),
935 int (*verifyctx) (EVP_PKEY_CTX *ctx,
936 const unsigned char *sig,
937 int siglen,
938 EVP_MD_CTX *mctx))
939{
940 pmeth->verifyctx_init = verifyctx_init;
941 pmeth->verifyctx = verifyctx;
942}
ba30bad5
DSH		 943
944void EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 945 int (*encrypt_init) (EVP_PKEY_CTX *ctx),
946 int (*encryptfn) (EVP_PKEY_CTX *ctx,
947 unsigned char *out,
948 size_t *outlen,
949 const unsigned char *in,
950 size_t inlen))
951{
952 pmeth->encrypt_init = encrypt_init;
953 pmeth->encrypt = encryptfn;
954}
ba30bad5
DSH		 955
956void EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 957 int (*decrypt_init) (EVP_PKEY_CTX *ctx),
958 int (*decrypt) (EVP_PKEY_CTX *ctx,
959 unsigned char *out,
960 size_t *outlen,
961 const unsigned char *in,
962 size_t inlen))
963{
964 pmeth->decrypt_init = decrypt_init;
965 pmeth->decrypt = decrypt;
966}
ba30bad5
DSH		 967
968void EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 969 int (*derive_init) (EVP_PKEY_CTX *ctx),
970 int (*derive) (EVP_PKEY_CTX *ctx,
971 unsigned char *key,
972 size_t *keylen))
973{
974 pmeth->derive_init = derive_init;
975 pmeth->derive = derive;
976}
ba30bad5
DSH		 977
978void EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 979 int (*ctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
980 void *p2),
981 int (*ctrl_str) (EVP_PKEY_CTX *ctx,
982 const char *type,
983 const char *value))
984{
985 pmeth->ctrl = ctrl;
986 pmeth->ctrl_str = ctrl_str;
987}
e7451ed1 988
2aee35d3
PY		 989void EVP_PKEY_meth_set_check(EVP_PKEY_METHOD *pmeth,
990 int (*check) (EVP_PKEY *pkey))
991{
992 pmeth->check = check;
993}
994
b0004708
PY		 995void EVP_PKEY_meth_set_public_check(EVP_PKEY_METHOD *pmeth,
996 int (*check) (EVP_PKEY *pkey))
997{
998 pmeth->public_check = check;
999}
1000
1001void EVP_PKEY_meth_set_param_check(EVP_PKEY_METHOD *pmeth,
1002 int (*check) (EVP_PKEY *pkey))
1003{
1004 pmeth->param_check = check;
1005}
1006
0a8fdef7
PY		 1007void EVP_PKEY_meth_set_digest_custom(EVP_PKEY_METHOD *pmeth,
1008 int (*digest_custom) (EVP_PKEY_CTX *ctx,
1009 EVP_MD_CTX *mctx))
1010{
1011 pmeth->digest_custom = digest_custom;
1012}
1013
693be9a2 1014void EVP_PKEY_meth_get_init(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1015 int (**pinit) (EVP_PKEY_CTX *ctx))
1016{
1017 *pinit = pmeth->init;
1018}
1019
693be9a2 1020void EVP_PKEY_meth_get_copy(const EVP_PKEY_METHOD *pmeth,
e7451ed1 1021 int (**pcopy) (EVP_PKEY_CTX *dst,
9fdcc21f 1022 const EVP_PKEY_CTX *src))
e7451ed1
DSH		 1023{
1024 *pcopy = pmeth->copy;
1025}
1026
693be9a2 1027void EVP_PKEY_meth_get_cleanup(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1028 void (**pcleanup) (EVP_PKEY_CTX *ctx))
1029{
1030 *pcleanup = pmeth->cleanup;
1031}
1032
693be9a2 1033void EVP_PKEY_meth_get_paramgen(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1034 int (**pparamgen_init) (EVP_PKEY_CTX *ctx),
1035 int (**pparamgen) (EVP_PKEY_CTX *ctx,
1036 EVP_PKEY *pkey))
1037{
1038 if (pparamgen_init)
1039 *pparamgen_init = pmeth->paramgen_init;
1040 if (pparamgen)
1041 *pparamgen = pmeth->paramgen;
1042}
1043
693be9a2 1044void EVP_PKEY_meth_get_keygen(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1045 int (**pkeygen_init) (EVP_PKEY_CTX *ctx),
1046 int (**pkeygen) (EVP_PKEY_CTX *ctx,
1047 EVP_PKEY *pkey))
1048{
1049 if (pkeygen_init)
1050 *pkeygen_init = pmeth->keygen_init;
1051 if (pkeygen)
1052 *pkeygen = pmeth->keygen;
1053}
1054
693be9a2 1055void EVP_PKEY_meth_get_sign(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1056 int (**psign_init) (EVP_PKEY_CTX *ctx),
1057 int (**psign) (EVP_PKEY_CTX *ctx,
1058 unsigned char *sig, size_t *siglen,
1059 const unsigned char *tbs,
1060 size_t tbslen))
1061{
1062 if (psign_init)
1063 *psign_init = pmeth->sign_init;
1064 if (psign)
1065 *psign = pmeth->sign;
1066}
1067
693be9a2 1068void EVP_PKEY_meth_get_verify(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1069 int (**pverify_init) (EVP_PKEY_CTX *ctx),
1070 int (**pverify) (EVP_PKEY_CTX *ctx,
1071 const unsigned char *sig,
1072 size_t siglen,
1073 const unsigned char *tbs,
1074 size_t tbslen))
1075{
1076 if (pverify_init)
1077 *pverify_init = pmeth->verify_init;
1078 if (pverify)
1079 *pverify = pmeth->verify;
1080}
1081
693be9a2 1082void EVP_PKEY_meth_get_verify_recover(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1083 int (**pverify_recover_init) (EVP_PKEY_CTX
1084 *ctx),
1085 int (**pverify_recover) (EVP_PKEY_CTX
1086 *ctx,
1087 unsigned char
1088 *sig,
1089 size_t *siglen,
1090 const unsigned
1091 char *tbs,
1092 size_t tbslen))
1093{
1094 if (pverify_recover_init)
1095 *pverify_recover_init = pmeth->verify_recover_init;
1096 if (pverify_recover)
1097 *pverify_recover = pmeth->verify_recover;
1098}
1099
693be9a2 1100void EVP_PKEY_meth_get_signctx(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1101 int (**psignctx_init) (EVP_PKEY_CTX *ctx,
1102 EVP_MD_CTX *mctx),
1103 int (**psignctx) (EVP_PKEY_CTX *ctx,
1104 unsigned char *sig,
1105 size_t *siglen,
1106 EVP_MD_CTX *mctx))
1107{
1108 if (psignctx_init)
1109 *psignctx_init = pmeth->signctx_init;
1110 if (psignctx)
1111 *psignctx = pmeth->signctx;
1112}
1113
693be9a2 1114void EVP_PKEY_meth_get_verifyctx(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1115 int (**pverifyctx_init) (EVP_PKEY_CTX *ctx,
1116 EVP_MD_CTX *mctx),
1117 int (**pverifyctx) (EVP_PKEY_CTX *ctx,
1118 const unsigned char *sig,
1119 int siglen,
1120 EVP_MD_CTX *mctx))
1121{
1122 if (pverifyctx_init)
1123 *pverifyctx_init = pmeth->verifyctx_init;
1124 if (pverifyctx)
1125 *pverifyctx = pmeth->verifyctx;
1126}
1127
693be9a2 1128void EVP_PKEY_meth_get_encrypt(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1129 int (**pencrypt_init) (EVP_PKEY_CTX *ctx),
1130 int (**pencryptfn) (EVP_PKEY_CTX *ctx,
1131 unsigned char *out,
1132 size_t *outlen,
1133 const unsigned char *in,
1134 size_t inlen))
1135{
1136 if (pencrypt_init)
1137 *pencrypt_init = pmeth->encrypt_init;
1138 if (pencryptfn)
1139 *pencryptfn = pmeth->encrypt;
1140}
1141
693be9a2 1142void EVP_PKEY_meth_get_decrypt(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1143 int (**pdecrypt_init) (EVP_PKEY_CTX *ctx),
1144 int (**pdecrypt) (EVP_PKEY_CTX *ctx,
1145 unsigned char *out,
1146 size_t *outlen,
1147 const unsigned char *in,
1148 size_t inlen))
1149{
1150 if (pdecrypt_init)
1151 *pdecrypt_init = pmeth->decrypt_init;
1152 if (pdecrypt)
1153 *pdecrypt = pmeth->decrypt;
1154}
1155
693be9a2 1156void EVP_PKEY_meth_get_derive(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1157 int (**pderive_init) (EVP_PKEY_CTX *ctx),
1158 int (**pderive) (EVP_PKEY_CTX *ctx,
1159 unsigned char *key,
1160 size_t *keylen))
1161{
1162 if (pderive_init)
1163 *pderive_init = pmeth->derive_init;
1164 if (pderive)
1165 *pderive = pmeth->derive;
1166}
1167
693be9a2 1168void EVP_PKEY_meth_get_ctrl(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 1169 int (**pctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
1170 void *p2),
1171 int (**pctrl_str) (EVP_PKEY_CTX *ctx,
1172 const char *type,
1173 const char *value))
1174{
1175 if (pctrl)
1176 *pctrl = pmeth->ctrl;
1177 if (pctrl_str)
1178 *pctrl_str = pmeth->ctrl_str;
1179}
2aee35d3 1180
693be9a2 1181void EVP_PKEY_meth_get_check(const EVP_PKEY_METHOD *pmeth,
2aee35d3
PY		 1182 int (**pcheck) (EVP_PKEY *pkey))
1183{
34f5c8b1 1184 if (pcheck != NULL)
2aee35d3
PY		 1185 *pcheck = pmeth->check;
1186}
b0004708 1187
693be9a2 1188void EVP_PKEY_meth_get_public_check(const EVP_PKEY_METHOD *pmeth,
b0004708
PY		 1189 int (**pcheck) (EVP_PKEY *pkey))
1190{
34f5c8b1 1191 if (pcheck != NULL)
b0004708
PY		 1192 *pcheck = pmeth->public_check;
1193}
1194
693be9a2 1195void EVP_PKEY_meth_get_param_check(const EVP_PKEY_METHOD *pmeth,
b0004708
PY		 1196 int (**pcheck) (EVP_PKEY *pkey))
1197{
34f5c8b1 1198 if (pcheck != NULL)
b0004708
PY		 1199 *pcheck = pmeth->param_check;
1200}
0a8fdef7
PY		 1201
1202void EVP_PKEY_meth_get_digest_custom(EVP_PKEY_METHOD *pmeth,
1203 int (**pdigest_custom) (EVP_PKEY_CTX *ctx,
1204 EVP_MD_CTX *mctx))
1205{
675f4cee 1206 if (pdigest_custom != NULL)
0a8fdef7
PY		 1207 *pdigest_custom = pmeth->digest_custom;
1208}
A mirror of the official openssl repository