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