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Remove some utilities from the core to provider interface
[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"
5fe736e5 19#include "internal/asn1_int.h"
27af42f9 20#include "internal/evp_int.h"
99119000 21#include "internal/numbers.h"
ff64702b 22#include "evp_locl.h"
0b6f3c66 23
0f113f3e 24typedef int sk_cmp_fn_type(const char *const *a, const char *const *b);
5ce278a7 25
df2ee0e2 26static STACK_OF(EVP_PKEY_METHOD) *app_pkey_methods = NULL;
0b6f3c66 27
cefa762e 28/* This array needs to be in order of NIDs */
0f113f3e 29static const EVP_PKEY_METHOD *standard_methods[] = {
d4f0339c 30#ifndef OPENSSL_NO_RSA
0f113f3e 31 &rsa_pkey_meth,
d4f0339c
DSH		 32#endif
33#ifndef OPENSSL_NO_DH
0f113f3e 34 &dh_pkey_meth,
d4f0339c
DSH		 35#endif
36#ifndef OPENSSL_NO_DSA
0f113f3e 37 &dsa_pkey_meth,
d4f0339c 38#endif
ef236ec3 39#ifndef OPENSSL_NO_EC
0f113f3e 40 &ec_pkey_meth,
ef236ec3 41#endif
0f113f3e 42 &hmac_pkey_meth,
b4a3aeeb 43#ifndef OPENSSL_NO_CMAC
0f113f3e 44 &cmac_pkey_meth,
b4a3aeeb 45#endif
6577e008
DSH		 46#ifndef OPENSSL_NO_RSA
47 &rsa_pss_pkey_meth,
48#endif
afb14cda 49#ifndef OPENSSL_NO_DH
1eff3485 50 &dhx_pkey_meth,
cefa762e
JB		 51#endif
52#ifndef OPENSSL_NO_SCRYPT
53 &scrypt_pkey_meth,
afb14cda 54#endif
aacfb134 55 &tls1_prf_pkey_meth,
262bd85f
DSH		 56#ifndef OPENSSL_NO_EC
57 &ecx25519_pkey_meth,
13735cfe 58 &ecx448_pkey_meth,
262bd85f 59#endif
52ad5b60
TS		 60 &hkdf_pkey_meth,
61#ifndef OPENSSL_NO_POLY1305
62 &poly1305_pkey_meth,
63#endif
3f5616d7
TS		 64#ifndef OPENSSL_NO_SIPHASH
65 &siphash_pkey_meth,
66#endif
42a3008a
DSH		 67#ifndef OPENSSL_NO_EC
68 &ed25519_pkey_meth,
13735cfe 69 &ed448_pkey_meth,
42a3008a 70#endif
ddb634fe
JL		 71#ifndef OPENSSL_NO_SM2
72 &sm2_pkey_meth,
73#endif
0f113f3e 74};
0b6f3c66 75
606f6c47 76DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, const EVP_PKEY_METHOD *,
0f113f3e 77 pmeth);
babb3798 78
0f113f3e
MC		 79static int pmeth_cmp(const EVP_PKEY_METHOD *const *a,
80 const EVP_PKEY_METHOD *const *b)
81{
82 return ((*a)->pkey_id - (*b)->pkey_id);
83}
0b6f3c66 84
606f6c47 85IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, const EVP_PKEY_METHOD *,
0f113f3e 86 pmeth);
babb3798 87
c9777d26 88const EVP_PKEY_METHOD *EVP_PKEY_meth_find(int type)
0f113f3e
MC		 89{
90 EVP_PKEY_METHOD tmp;
91 const EVP_PKEY_METHOD *t = &tmp, **ret;
92 tmp.pkey_id = type;
93 if (app_pkey_methods) {
94 int idx;
95 idx = sk_EVP_PKEY_METHOD_find(app_pkey_methods, &tmp);
96 if (idx >= 0)
97 return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx);
98 }
99 ret = OBJ_bsearch_pmeth(&t, standard_methods,
100 sizeof(standard_methods) /
101 sizeof(EVP_PKEY_METHOD *));
102 if (!ret || !*ret)
103 return NULL;
104 return *ret;
105}
0b6f3c66 106
f5cda4cb 107static EVP_PKEY_CTX *int_ctx_new(EVP_PKEY *pkey, ENGINE *e, int id)
0f113f3e
MC		 108{
109 EVP_PKEY_CTX *ret;
d0ea49a8
RL		 110 const EVP_PKEY_METHOD *pmeth = NULL;
111
112 /*
113 * When using providers, the context is bound to the algo implementation
114 * later.
115 */
116 if (pkey == NULL && e == NULL && id == -1)
117 goto common;
2f2e6b62 118
d0ea49a8
RL		 119 /* TODO(3.0) Legacy code should be removed when all is provider based */
120 /* BEGIN legacy */
0f113f3e 121 if (id == -1) {
a6465b3f
P		 122 if (pkey == NULL)
123 return 0;
2f2e6b62 124 id = pkey->type;
0f113f3e 125 }
a63bf2c5 126#ifndef OPENSSL_NO_ENGINE
c2976edf 127 if (e == NULL && pkey != NULL)
d19b01ad 128 e = pkey->pmeth_engine != NULL ? pkey->pmeth_engine : pkey->engine;
0f113f3e
MC		 129 /* Try to find an ENGINE which implements this method */
130 if (e) {
131 if (!ENGINE_init(e)) {
132 EVPerr(EVP_F_INT_CTX_NEW, ERR_R_ENGINE_LIB);
133 return NULL;
134 }
c2976edf 135 } else {
0f113f3e 136 e = ENGINE_get_pkey_meth_engine(id);
c2976edf 137 }
0f113f3e
MC		 138
139 /*
0d4fb843 140 * If an ENGINE handled this method look it up. Otherwise use internal
0f113f3e
MC		 141 * tables.
142 */
0f113f3e
MC		 143 if (e)
144 pmeth = ENGINE_get_pkey_meth(e, id);
145 else
a63bf2c5 146#endif
0f113f3e 147 pmeth = EVP_PKEY_meth_find(id);
c9777d26 148
0f113f3e 149 if (pmeth == NULL) {
918a27fa
DSH		 150#ifndef OPENSSL_NO_ENGINE
151 ENGINE_finish(e);
152#endif
0f113f3e
MC		 153 EVPerr(EVP_F_INT_CTX_NEW, EVP_R_UNSUPPORTED_ALGORITHM);
154 return NULL;
155 }
d0ea49a8 156 /* END legacy */
c9777d26 157
d0ea49a8 158 common:
64b25758 159 ret = OPENSSL_zalloc(sizeof(*ret));
90945fa3 160 if (ret == NULL) {
a63bf2c5 161#ifndef OPENSSL_NO_ENGINE
7c96dbcd 162 ENGINE_finish(e);
a63bf2c5 163#endif
0f113f3e
MC		 164 EVPerr(EVP_F_INT_CTX_NEW, ERR_R_MALLOC_FAILURE);
165 return NULL;
166 }
167 ret->engine = e;
168 ret->pmeth = pmeth;
169 ret->operation = EVP_PKEY_OP_UNDEFINED;
170 ret->pkey = pkey;
a6465b3f 171 if (pkey != NULL)
03273d61 172 EVP_PKEY_up_ref(pkey);
0f113f3e 173
d0ea49a8 174 if (pmeth != NULL && pmeth->init) {
0f113f3e 175 if (pmeth->init(ret) <= 0) {
83b4049a 176 ret->pmeth = NULL;
0f113f3e
MC		 177 EVP_PKEY_CTX_free(ret);
178 return NULL;
179 }
180 }
181
182 return ret;
183}
184
185EVP_PKEY_METHOD *EVP_PKEY_meth_new(int id, int flags)
186{
187 EVP_PKEY_METHOD *pmeth;
b4faea50 188
b51bce94 189 pmeth = OPENSSL_zalloc(sizeof(*pmeth));
3484236d
F		 190 if (pmeth == NULL) {
191 EVPerr(EVP_F_EVP_PKEY_METH_NEW, ERR_R_MALLOC_FAILURE);
0f113f3e 192 return NULL;
3484236d 193 }
0f113f3e 194
0f113f3e
MC		 195 pmeth->pkey_id = id;
196 pmeth->flags = flags | EVP_PKEY_FLAG_DYNAMIC;
0f113f3e
MC		 197 return pmeth;
198}
ba30bad5 199
f830c68f 200void EVP_PKEY_meth_get0_info(int *ppkey_id, int *pflags,
0f113f3e
MC		 201 const EVP_PKEY_METHOD *meth)
202{
203 if (ppkey_id)
204 *ppkey_id = meth->pkey_id;
205 if (pflags)
206 *pflags = meth->flags;
207}
f830c68f
DSH		 208
209void EVP_PKEY_meth_copy(EVP_PKEY_METHOD *dst, const EVP_PKEY_METHOD *src)
0f113f3e 210{
f830c68f 211
0f113f3e
MC		 212 dst->init = src->init;
213 dst->copy = src->copy;
214 dst->cleanup = src->cleanup;
f830c68f 215
0f113f3e
MC		 216 dst->paramgen_init = src->paramgen_init;
217 dst->paramgen = src->paramgen;
f830c68f 218
0f113f3e
MC		 219 dst->keygen_init = src->keygen_init;
220 dst->keygen = src->keygen;
f830c68f 221
0f113f3e
MC		 222 dst->sign_init = src->sign_init;
223 dst->sign = src->sign;
f830c68f 224
0f113f3e
MC		 225 dst->verify_init = src->verify_init;
226 dst->verify = src->verify;
f830c68f 227
0f113f3e
MC		 228 dst->verify_recover_init = src->verify_recover_init;
229 dst->verify_recover = src->verify_recover;
f830c68f 230
0f113f3e
MC		 231 dst->signctx_init = src->signctx_init;
232 dst->signctx = src->signctx;
f830c68f 233
0f113f3e
MC		 234 dst->verifyctx_init = src->verifyctx_init;
235 dst->verifyctx = src->verifyctx;
f830c68f 236
0f113f3e
MC		 237 dst->encrypt_init = src->encrypt_init;
238 dst->encrypt = src->encrypt;
f830c68f 239
0f113f3e
MC		 240 dst->decrypt_init = src->decrypt_init;
241 dst->decrypt = src->decrypt;
f830c68f 242
0f113f3e
MC		 243 dst->derive_init = src->derive_init;
244 dst->derive = src->derive;
f830c68f 245
0f113f3e
MC		 246 dst->ctrl = src->ctrl;
247 dst->ctrl_str = src->ctrl_str;
2aee35d3
PY		 248
249 dst->check = src->check;
0f113f3e 250}
f830c68f 251
ba30bad5 252void EVP_PKEY_meth_free(EVP_PKEY_METHOD *pmeth)
0f113f3e
MC		 253{
254 if (pmeth && (pmeth->flags & EVP_PKEY_FLAG_DYNAMIC))
255 OPENSSL_free(pmeth);
256}
ba30bad5 257
f5cda4cb 258EVP_PKEY_CTX *EVP_PKEY_CTX_new(EVP_PKEY *pkey, ENGINE *e)
0f113f3e
MC		 259{
260 return int_ctx_new(pkey, e, -1);
261}
f5cda4cb
DSH		 262
263EVP_PKEY_CTX *EVP_PKEY_CTX_new_id(int id, ENGINE *e)
0f113f3e
MC		 264{
265 return int_ctx_new(NULL, e, id);
266}
f5cda4cb 267
9fdcc21f 268EVP_PKEY_CTX *EVP_PKEY_CTX_dup(const EVP_PKEY_CTX *pctx)
0f113f3e
MC		 269{
270 EVP_PKEY_CTX *rctx;
ff64702b
MC		 271
272 if (((pctx->pmeth == NULL) || (pctx->pmeth->copy == NULL))
273 && pctx->exchprovctx == NULL)
0f113f3e 274 return NULL;
c9777d26 275#ifndef OPENSSL_NO_ENGINE
0f113f3e
MC		 276 /* Make sure it's safe to copy a pkey context using an ENGINE */
277 if (pctx->engine && !ENGINE_init(pctx->engine)) {
278 EVPerr(EVP_F_EVP_PKEY_CTX_DUP, ERR_R_ENGINE_LIB);
279 return 0;
280 }
c9777d26 281#endif
ff64702b 282 rctx = OPENSSL_zalloc(sizeof(*rctx));
3484236d
F		 283 if (rctx == NULL) {
284 EVPerr(EVP_F_EVP_PKEY_CTX_DUP, ERR_R_MALLOC_FAILURE);
0f113f3e 285 return NULL;
3484236d 286 }
8bdcef40 287
ff64702b
MC		 288 if (pctx->pkey != NULL)
289 EVP_PKEY_up_ref(pctx->pkey);
290 rctx->pkey = pctx->pkey;
291 rctx->operation = pctx->operation;
292
293 if (pctx->exchprovctx != NULL) {
294 if (!ossl_assert(pctx->exchange != NULL))
295 return NULL;
296 rctx->exchange = pctx->exchange;
297 if (!EVP_KEYEXCH_up_ref(rctx->exchange)) {
298 OPENSSL_free(rctx);
299 return NULL;
300 }
301 rctx->exchprovctx = pctx->exchange->dupctx(pctx->exchprovctx);
302 if (rctx->exchprovctx == NULL) {
303 EVP_KEYEXCH_free(rctx->exchange);
304 OPENSSL_free(rctx);
305 return NULL;
306 }
307 return rctx;
308 }
309
0f113f3e 310 rctx->pmeth = pctx->pmeth;
c9777d26 311#ifndef OPENSSL_NO_ENGINE
0f113f3e 312 rctx->engine = pctx->engine;
c9777d26 313#endif
8bdcef40 314
0f113f3e 315 if (pctx->peerkey)
03273d61 316 EVP_PKEY_up_ref(pctx->peerkey);
0f113f3e 317 rctx->peerkey = pctx->peerkey;
8bdcef40 318
0f113f3e
MC		 319 if (pctx->pmeth->copy(rctx, pctx) > 0)
320 return rctx;
8bdcef40 321
83b4049a 322 rctx->pmeth = NULL;
0f113f3e
MC		 323 EVP_PKEY_CTX_free(rctx);
324 return NULL;
8bdcef40 325
0f113f3e 326}
8bdcef40 327
ba30bad5 328int EVP_PKEY_meth_add0(const EVP_PKEY_METHOD *pmeth)
0f113f3e
MC		 329{
330 if (app_pkey_methods == NULL) {
331 app_pkey_methods = sk_EVP_PKEY_METHOD_new(pmeth_cmp);
3484236d
F		 332 if (app_pkey_methods == NULL){
333 EVPerr(EVP_F_EVP_PKEY_METH_ADD0, ERR_R_MALLOC_FAILURE);
0f113f3e 334 return 0;
3484236d 335 }
0f113f3e 336 }
3484236d
F		 337 if (!sk_EVP_PKEY_METHOD_push(app_pkey_methods, pmeth)) {
338 EVPerr(EVP_F_EVP_PKEY_METH_ADD0, ERR_R_MALLOC_FAILURE);
0f113f3e 339 return 0;
3484236d 340 }
0f113f3e
MC		 341 sk_EVP_PKEY_METHOD_sort(app_pkey_methods);
342 return 1;
343}
ba30bad5 344
0822e89a
PY		 345void evp_app_cleanup_int(void)
346{
347 if (app_pkey_methods != NULL)
348 sk_EVP_PKEY_METHOD_pop_free(app_pkey_methods, EVP_PKEY_meth_free);
349}
350
351int EVP_PKEY_meth_remove(const EVP_PKEY_METHOD *pmeth)
352{
353 const EVP_PKEY_METHOD *ret;
354
355 ret = sk_EVP_PKEY_METHOD_delete_ptr(app_pkey_methods, pmeth);
356
357 return ret == NULL ? 0 : 1;
358}
359
48ed9c23
DSH		 360size_t EVP_PKEY_meth_get_count(void)
361{
362 size_t rv = OSSL_NELEM(standard_methods);
363
364 if (app_pkey_methods)
365 rv += sk_EVP_PKEY_METHOD_num(app_pkey_methods);
366 return rv;
367}
368
369const EVP_PKEY_METHOD *EVP_PKEY_meth_get0(size_t idx)
370{
371 if (idx < OSSL_NELEM(standard_methods))
372 return standard_methods[idx];
373 if (app_pkey_methods == NULL)
374 return NULL;
375 idx -= OSSL_NELEM(standard_methods);
376 if (idx >= (size_t)sk_EVP_PKEY_METHOD_num(app_pkey_methods))
377 return NULL;
378 return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx);
379}
380
5da98aa6 381void EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 382{
383 if (ctx == NULL)
384 return;
385 if (ctx->pmeth && ctx->pmeth->cleanup)
386 ctx->pmeth->cleanup(ctx);
ff64702b
MC		 387
388 if (ctx->exchprovctx != NULL && ctx->exchange != NULL)
389 ctx->exchange->freectx(ctx->exchprovctx);
390
391 EVP_KEYEXCH_free(ctx->exchange);
392
c5ba2d99
RS		 393 EVP_PKEY_free(ctx->pkey);
394 EVP_PKEY_free(ctx->peerkey);
c9777d26 395#ifndef OPENSSL_NO_ENGINE
7c96dbcd 396 ENGINE_finish(ctx->engine);
c9777d26 397#endif
0f113f3e
MC		 398 OPENSSL_free(ctx);
399}
5da98aa6 400
35aca9ec
MC		 401int EVP_PKEY_CTX_set_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
402{
403 if (ctx->exchprovctx != NULL && ctx->exchange != NULL)
404 return ctx->exchange->set_params(ctx->exchprovctx, params);
405 return 0;
406}
407
76ca35e7 408#ifndef OPENSSL_NO_DH
35aca9ec
MC		 409int EVP_PKEY_CTX_set_dh_pad(EVP_PKEY_CTX *ctx, int pad)
410{
411 OSSL_PARAM dh_pad_params[2];
412
413 /* TODO(3.0): Remove this eventually when no more legacy */
414 if (ctx->exchprovctx == NULL)
415 return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DH, EVP_PKEY_OP_DERIVE,
416 EVP_PKEY_CTRL_DH_PAD, pad, NULL);
417
418 dh_pad_params[0] = OSSL_PARAM_construct_int(OSSL_EXCHANGE_PARAM_PAD, &pad);
419 dh_pad_params[1] = OSSL_PARAM_construct_end();
420
421 return EVP_PKEY_CTX_set_params(ctx, dh_pad_params);
422}
76ca35e7 423#endif
35aca9ec
MC		 424
425static int legacy_ctrl_to_param(EVP_PKEY_CTX *ctx, int keytype, int optype,
426 int cmd, int p1, void *p2)
427{
428 switch (cmd) {
76ca35e7 429#ifndef OPENSSL_NO_DH
35aca9ec
MC		 430 case EVP_PKEY_CTRL_DH_PAD:
431 return EVP_PKEY_CTX_set_dh_pad(ctx, p1);
76ca35e7 432#endif
35aca9ec
MC		 433 }
434 return 0;
435}
436
0b6f3c66 437int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype,
0f113f3e
MC		 438 int cmd, int p1, void *p2)
439{
440 int ret;
4803717f 441
35aca9ec
MC		 442 if (ctx == NULL) {
443 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED);
444 return -2;
445 }
446
447 if (ctx->exchprovctx != NULL)
448 return legacy_ctrl_to_param(ctx, keytype, optype, cmd, p1, p2);
449
450 if (ctx->pmeth == NULL || ctx->pmeth->ctrl == NULL) {
0f113f3e
MC		 451 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED);
452 return -2;
453 }
454 if ((keytype != -1) && (ctx->pmeth->pkey_id != keytype))
455 return -1;
456
4803717f
PY		 457 /* Skip the operation checks since this is called in a very early stage */
458 if (ctx->pmeth->digest_custom != NULL)
459 goto doit;
460
0f113f3e
MC		 461 if (ctx->operation == EVP_PKEY_OP_UNDEFINED) {
462 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_NO_OPERATION_SET);
463 return -1;
464 }
465
466 if ((optype != -1) && !(ctx->operation & optype)) {
467 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_INVALID_OPERATION);
468 return -1;
469 }
470
4803717f 471 doit:
0f113f3e
MC		 472 ret = ctx->pmeth->ctrl(ctx, cmd, p1, p2);
473
474 if (ret == -2)
475 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED);
476
477 return ret;
0f113f3e 478}
0b6f3c66 479
cefa762e 480int EVP_PKEY_CTX_ctrl_uint64(EVP_PKEY_CTX *ctx, int keytype, int optype,
64bf1016 481 int cmd, uint64_t value)
cefa762e
JB		 482{
483 return EVP_PKEY_CTX_ctrl(ctx, keytype, optype, cmd, 0, &value);
484}
485
35aca9ec
MC		 486static int legacy_ctrl_str_to_param(EVP_PKEY_CTX *ctx, const char *name,
487 const char *value)
488{
76ca35e7 489#ifndef OPENSSL_NO_DH
35aca9ec
MC		 490 if (strcmp(name, "dh_pad") == 0) {
491 int pad;
492
493 pad = atoi(value);
494 return EVP_PKEY_CTX_set_dh_pad(ctx, pad);
495 }
76ca35e7 496#endif
35aca9ec
MC		 497 return 0;
498}
499
4a3dc3c0 500int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX *ctx,
0f113f3e
MC		 501 const char *name, const char *value)
502{
35aca9ec
MC		 503 if (ctx == NULL) {
504 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR, EVP_R_COMMAND_NOT_SUPPORTED);
505 return -2;
506 }
507
508 if (ctx->exchprovctx != NULL)
509 return legacy_ctrl_str_to_param(ctx, name, value);
510
0f113f3e
MC		 511 if (!ctx || !ctx->pmeth || !ctx->pmeth->ctrl_str) {
512 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR, EVP_R_COMMAND_NOT_SUPPORTED);
513 return -2;
514 }
410877ba
DSH		 515 if (strcmp(name, "digest") == 0)
516 return EVP_PKEY_CTX_md(ctx, EVP_PKEY_OP_TYPE_SIG, EVP_PKEY_CTRL_MD,
517 value);
0f113f3e
MC		 518 return ctx->pmeth->ctrl_str(ctx, name, value);
519}
f5cda4cb 520
99119000
DSH		 521/* Utility functions to send a string of hex string to a ctrl */
522
523int EVP_PKEY_CTX_str2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *str)
524{
525 size_t len;
526
527 len = strlen(str);
528 if (len > INT_MAX)
529 return -1;
530 return ctx->pmeth->ctrl(ctx, cmd, len, (void *)str);
531}
532
533int EVP_PKEY_CTX_hex2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *hex)
534{
535 unsigned char *bin;
536 long binlen;
537 int rv = -1;
538
14f051a0 539 bin = OPENSSL_hexstr2buf(hex, &binlen);
99119000
DSH		 540 if (bin == NULL)
541 return 0;
542 if (binlen <= INT_MAX)
543 rv = ctx->pmeth->ctrl(ctx, cmd, binlen, bin);
544 OPENSSL_free(bin);
545 return rv;
546}
52ad523c 547
410877ba
DSH		 548/* Pass a message digest to a ctrl */
549int EVP_PKEY_CTX_md(EVP_PKEY_CTX *ctx, int optype, int cmd, const char *md)
550{
551 const EVP_MD *m;
c82bafc5 552
410877ba
DSH		 553 if (md == NULL || (m = EVP_get_digestbyname(md)) == NULL) {
554 EVPerr(EVP_F_EVP_PKEY_CTX_MD, EVP_R_INVALID_DIGEST);
555 return 0;
556 }
557 return EVP_PKEY_CTX_ctrl(ctx, -1, optype, cmd, 0, (void *)m);
558}
99119000 559
b28dea4e 560int EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 561{
562 return ctx->operation;
563}
b28dea4e
DSH		 564
565void EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX *ctx, int *dat, int datlen)
0f113f3e
MC		 566{
567 ctx->keygen_info = dat;
568 ctx->keygen_info_count = datlen;
569}
b28dea4e 570
f5cda4cb 571void EVP_PKEY_CTX_set_data(EVP_PKEY_CTX *ctx, void *data)
0f113f3e
MC		 572{
573 ctx->data = data;
574}
f5cda4cb 575
9fdcc21f 576void *EVP_PKEY_CTX_get_data(const EVP_PKEY_CTX *ctx)
0f113f3e
MC		 577{
578 return ctx->data;
579}
f5cda4cb 580
81cebb8b 581EVP_PKEY *EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 582{
583 return ctx->pkey;
584}
81cebb8b 585
0e1dba93 586EVP_PKEY *EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 587{
588 return ctx->peerkey;
589}
590
f5cda4cb 591void EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX *ctx, void *data)
0f113f3e
MC		 592{
593 ctx->app_data = data;
594}
f5cda4cb
DSH		 595
596void *EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 597{
598 return ctx->app_data;
599}
ba30bad5
DSH		 600
601void EVP_PKEY_meth_set_init(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 602 int (*init) (EVP_PKEY_CTX *ctx))
603{
604 pmeth->init = init;
605}
8bdcef40
DSH		 606
607void EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD *pmeth,
0f113f3e 608 int (*copy) (EVP_PKEY_CTX *dst,
9fdcc21f 609 const EVP_PKEY_CTX *src))
0f113f3e
MC		 610{
611 pmeth->copy = copy;
612}
ba30bad5
DSH		 613
614void EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 615 void (*cleanup) (EVP_PKEY_CTX *ctx))
616{
617 pmeth->cleanup = cleanup;
618}
ba30bad5
DSH		 619
620void EVP_PKEY_meth_set_paramgen(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 621 int (*paramgen_init) (EVP_PKEY_CTX *ctx),
622 int (*paramgen) (EVP_PKEY_CTX *ctx,
623 EVP_PKEY *pkey))
624{
625 pmeth->paramgen_init = paramgen_init;
626 pmeth->paramgen = paramgen;
627}
ba30bad5
DSH		 628
629void EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 630 int (*keygen_init) (EVP_PKEY_CTX *ctx),
631 int (*keygen) (EVP_PKEY_CTX *ctx,
632 EVP_PKEY *pkey))
633{
634 pmeth->keygen_init = keygen_init;
635 pmeth->keygen = keygen;
636}
ba30bad5
DSH		 637
638void EVP_PKEY_meth_set_sign(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 639 int (*sign_init) (EVP_PKEY_CTX *ctx),
640 int (*sign) (EVP_PKEY_CTX *ctx,
641 unsigned char *sig, size_t *siglen,
642 const unsigned char *tbs,
643 size_t tbslen))
644{
645 pmeth->sign_init = sign_init;
646 pmeth->sign = sign;
647}
ba30bad5
DSH		 648
649void EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 650 int (*verify_init) (EVP_PKEY_CTX *ctx),
651 int (*verify) (EVP_PKEY_CTX *ctx,
652 const unsigned char *sig,
653 size_t siglen,
654 const unsigned char *tbs,
655 size_t tbslen))
656{
657 pmeth->verify_init = verify_init;
658 pmeth->verify = verify;
659}
ba30bad5
DSH		 660
661void EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 662 int (*verify_recover_init) (EVP_PKEY_CTX
663 *ctx),
664 int (*verify_recover) (EVP_PKEY_CTX
665 *ctx,
666 unsigned char
667 *sig,
668 size_t *siglen,
669 const unsigned
670 char *tbs,
671 size_t tbslen))
672{
673 pmeth->verify_recover_init = verify_recover_init;
674 pmeth->verify_recover = verify_recover;
675}
ba30bad5
DSH		 676
677void EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 678 int (*signctx_init) (EVP_PKEY_CTX *ctx,
679 EVP_MD_CTX *mctx),
680 int (*signctx) (EVP_PKEY_CTX *ctx,
681 unsigned char *sig,
682 size_t *siglen,
683 EVP_MD_CTX *mctx))
684{
685 pmeth->signctx_init = signctx_init;
686 pmeth->signctx = signctx;
687}
ba30bad5
DSH		 688
689void EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 690 int (*verifyctx_init) (EVP_PKEY_CTX *ctx,
691 EVP_MD_CTX *mctx),
692 int (*verifyctx) (EVP_PKEY_CTX *ctx,
693 const unsigned char *sig,
694 int siglen,
695 EVP_MD_CTX *mctx))
696{
697 pmeth->verifyctx_init = verifyctx_init;
698 pmeth->verifyctx = verifyctx;
699}
ba30bad5
DSH		 700
701void EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 702 int (*encrypt_init) (EVP_PKEY_CTX *ctx),
703 int (*encryptfn) (EVP_PKEY_CTX *ctx,
704 unsigned char *out,
705 size_t *outlen,
706 const unsigned char *in,
707 size_t inlen))
708{
709 pmeth->encrypt_init = encrypt_init;
710 pmeth->encrypt = encryptfn;
711}
ba30bad5
DSH		 712
713void EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 714 int (*decrypt_init) (EVP_PKEY_CTX *ctx),
715 int (*decrypt) (EVP_PKEY_CTX *ctx,
716 unsigned char *out,
717 size_t *outlen,
718 const unsigned char *in,
719 size_t inlen))
720{
721 pmeth->decrypt_init = decrypt_init;
722 pmeth->decrypt = decrypt;
723}
ba30bad5
DSH		 724
725void EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 726 int (*derive_init) (EVP_PKEY_CTX *ctx),
727 int (*derive) (EVP_PKEY_CTX *ctx,
728 unsigned char *key,
729 size_t *keylen))
730{
731 pmeth->derive_init = derive_init;
732 pmeth->derive = derive;
733}
ba30bad5
DSH		 734
735void EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 736 int (*ctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
737 void *p2),
738 int (*ctrl_str) (EVP_PKEY_CTX *ctx,
739 const char *type,
740 const char *value))
741{
742 pmeth->ctrl = ctrl;
743 pmeth->ctrl_str = ctrl_str;
744}
e7451ed1 745
2aee35d3
PY		 746void EVP_PKEY_meth_set_check(EVP_PKEY_METHOD *pmeth,
747 int (*check) (EVP_PKEY *pkey))
748{
749 pmeth->check = check;
750}
751
b0004708
PY		 752void EVP_PKEY_meth_set_public_check(EVP_PKEY_METHOD *pmeth,
753 int (*check) (EVP_PKEY *pkey))
754{
755 pmeth->public_check = check;
756}
757
758void EVP_PKEY_meth_set_param_check(EVP_PKEY_METHOD *pmeth,
759 int (*check) (EVP_PKEY *pkey))
760{
761 pmeth->param_check = check;
762}
763
0a8fdef7
PY		 764void EVP_PKEY_meth_set_digest_custom(EVP_PKEY_METHOD *pmeth,
765 int (*digest_custom) (EVP_PKEY_CTX *ctx,
766 EVP_MD_CTX *mctx))
767{
768 pmeth->digest_custom = digest_custom;
769}
770
693be9a2 771void EVP_PKEY_meth_get_init(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 772 int (**pinit) (EVP_PKEY_CTX *ctx))
773{
774 *pinit = pmeth->init;
775}
776
693be9a2 777void EVP_PKEY_meth_get_copy(const EVP_PKEY_METHOD *pmeth,
e7451ed1 778 int (**pcopy) (EVP_PKEY_CTX *dst,
9fdcc21f 779 const EVP_PKEY_CTX *src))
e7451ed1
DSH		 780{
781 *pcopy = pmeth->copy;
782}
783
693be9a2 784void EVP_PKEY_meth_get_cleanup(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 785 void (**pcleanup) (EVP_PKEY_CTX *ctx))
786{
787 *pcleanup = pmeth->cleanup;
788}
789
693be9a2 790void EVP_PKEY_meth_get_paramgen(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 791 int (**pparamgen_init) (EVP_PKEY_CTX *ctx),
792 int (**pparamgen) (EVP_PKEY_CTX *ctx,
793 EVP_PKEY *pkey))
794{
795 if (pparamgen_init)
796 *pparamgen_init = pmeth->paramgen_init;
797 if (pparamgen)
798 *pparamgen = pmeth->paramgen;
799}
800
693be9a2 801void EVP_PKEY_meth_get_keygen(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 802 int (**pkeygen_init) (EVP_PKEY_CTX *ctx),
803 int (**pkeygen) (EVP_PKEY_CTX *ctx,
804 EVP_PKEY *pkey))
805{
806 if (pkeygen_init)
807 *pkeygen_init = pmeth->keygen_init;
808 if (pkeygen)
809 *pkeygen = pmeth->keygen;
810}
811
693be9a2 812void EVP_PKEY_meth_get_sign(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 813 int (**psign_init) (EVP_PKEY_CTX *ctx),
814 int (**psign) (EVP_PKEY_CTX *ctx,
815 unsigned char *sig, size_t *siglen,
816 const unsigned char *tbs,
817 size_t tbslen))
818{
819 if (psign_init)
820 *psign_init = pmeth->sign_init;
821 if (psign)
822 *psign = pmeth->sign;
823}
824
693be9a2 825void EVP_PKEY_meth_get_verify(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 826 int (**pverify_init) (EVP_PKEY_CTX *ctx),
827 int (**pverify) (EVP_PKEY_CTX *ctx,
828 const unsigned char *sig,
829 size_t siglen,
830 const unsigned char *tbs,
831 size_t tbslen))
832{
833 if (pverify_init)
834 *pverify_init = pmeth->verify_init;
835 if (pverify)
836 *pverify = pmeth->verify;
837}
838
693be9a2 839void EVP_PKEY_meth_get_verify_recover(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 840 int (**pverify_recover_init) (EVP_PKEY_CTX
841 *ctx),
842 int (**pverify_recover) (EVP_PKEY_CTX
843 *ctx,
844 unsigned char
845 *sig,
846 size_t *siglen,
847 const unsigned
848 char *tbs,
849 size_t tbslen))
850{
851 if (pverify_recover_init)
852 *pverify_recover_init = pmeth->verify_recover_init;
853 if (pverify_recover)
854 *pverify_recover = pmeth->verify_recover;
855}
856
693be9a2 857void EVP_PKEY_meth_get_signctx(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 858 int (**psignctx_init) (EVP_PKEY_CTX *ctx,
859 EVP_MD_CTX *mctx),
860 int (**psignctx) (EVP_PKEY_CTX *ctx,
861 unsigned char *sig,
862 size_t *siglen,
863 EVP_MD_CTX *mctx))
864{
865 if (psignctx_init)
866 *psignctx_init = pmeth->signctx_init;
867 if (psignctx)
868 *psignctx = pmeth->signctx;
869}
870
693be9a2 871void EVP_PKEY_meth_get_verifyctx(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 872 int (**pverifyctx_init) (EVP_PKEY_CTX *ctx,
873 EVP_MD_CTX *mctx),
874 int (**pverifyctx) (EVP_PKEY_CTX *ctx,
875 const unsigned char *sig,
876 int siglen,
877 EVP_MD_CTX *mctx))
878{
879 if (pverifyctx_init)
880 *pverifyctx_init = pmeth->verifyctx_init;
881 if (pverifyctx)
882 *pverifyctx = pmeth->verifyctx;
883}
884
693be9a2 885void EVP_PKEY_meth_get_encrypt(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 886 int (**pencrypt_init) (EVP_PKEY_CTX *ctx),
887 int (**pencryptfn) (EVP_PKEY_CTX *ctx,
888 unsigned char *out,
889 size_t *outlen,
890 const unsigned char *in,
891 size_t inlen))
892{
893 if (pencrypt_init)
894 *pencrypt_init = pmeth->encrypt_init;
895 if (pencryptfn)
896 *pencryptfn = pmeth->encrypt;
897}
898
693be9a2 899void EVP_PKEY_meth_get_decrypt(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 900 int (**pdecrypt_init) (EVP_PKEY_CTX *ctx),
901 int (**pdecrypt) (EVP_PKEY_CTX *ctx,
902 unsigned char *out,
903 size_t *outlen,
904 const unsigned char *in,
905 size_t inlen))
906{
907 if (pdecrypt_init)
908 *pdecrypt_init = pmeth->decrypt_init;
909 if (pdecrypt)
910 *pdecrypt = pmeth->decrypt;
911}
912
693be9a2 913void EVP_PKEY_meth_get_derive(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 914 int (**pderive_init) (EVP_PKEY_CTX *ctx),
915 int (**pderive) (EVP_PKEY_CTX *ctx,
916 unsigned char *key,
917 size_t *keylen))
918{
919 if (pderive_init)
920 *pderive_init = pmeth->derive_init;
921 if (pderive)
922 *pderive = pmeth->derive;
923}
924
693be9a2 925void EVP_PKEY_meth_get_ctrl(const EVP_PKEY_METHOD *pmeth,
e7451ed1
DSH		 926 int (**pctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
927 void *p2),
928 int (**pctrl_str) (EVP_PKEY_CTX *ctx,
929 const char *type,
930 const char *value))
931{
932 if (pctrl)
933 *pctrl = pmeth->ctrl;
934 if (pctrl_str)
935 *pctrl_str = pmeth->ctrl_str;
936}
2aee35d3 937
693be9a2 938void EVP_PKEY_meth_get_check(const EVP_PKEY_METHOD *pmeth,
2aee35d3
PY		 939 int (**pcheck) (EVP_PKEY *pkey))
940{
34f5c8b1 941 if (pcheck != NULL)
2aee35d3
PY		 942 *pcheck = pmeth->check;
943}
b0004708 944
693be9a2 945void EVP_PKEY_meth_get_public_check(const EVP_PKEY_METHOD *pmeth,
b0004708
PY		 946 int (**pcheck) (EVP_PKEY *pkey))
947{
34f5c8b1 948 if (pcheck != NULL)
b0004708
PY		 949 *pcheck = pmeth->public_check;
950}
951
693be9a2 952void EVP_PKEY_meth_get_param_check(const EVP_PKEY_METHOD *pmeth,
b0004708
PY		 953 int (**pcheck) (EVP_PKEY *pkey))
954{
34f5c8b1 955 if (pcheck != NULL)
b0004708
PY		 956 *pcheck = pmeth->param_check;
957}
0a8fdef7
PY		 958
959void EVP_PKEY_meth_get_digest_custom(EVP_PKEY_METHOD *pmeth,
960 int (**pdigest_custom) (EVP_PKEY_CTX *ctx,
961 EVP_MD_CTX *mctx))
962{
675f4cee 963 if (pdigest_custom != NULL)
0a8fdef7
PY		 964 *pdigest_custom = pmeth->digest_custom;
965}
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