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Fix declarations and constification for inline stack.
[thirdparty/openssl.git] / crypto / evp / pmeth_lib.c
CommitLineData
0b6f3c66 1/* pmeth_lib.c */
0f113f3e
MC		 2/*
3 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
4 * 2006.
0b6f3c66
DSH		 5 */
6/* ====================================================================
7 * Copyright (c) 2006 The OpenSSL Project. All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright
0f113f3e 14 * notice, this list of conditions and the following disclaimer.
0b6f3c66
DSH		 15 *
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in
18 * the documentation and/or other materials provided with the
19 * distribution.
20 *
21 * 3. All advertising materials mentioning features or use of this
22 * software must display the following acknowledgment:
23 * "This product includes software developed by the OpenSSL Project
24 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 *
26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27 * endorse or promote products derived from this software without
28 * prior written permission. For written permission, please contact
29 * licensing@OpenSSL.org.
30 *
31 * 5. Products derived from this software may not be called "OpenSSL"
32 * nor may "OpenSSL" appear in their names without prior written
33 * permission of the OpenSSL Project.
34 *
35 * 6. Redistributions of any form whatsoever must retain the following
36 * acknowledgment:
37 * "This product includes software developed by the OpenSSL Project
38 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 *
40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51 * OF THE POSSIBILITY OF SUCH DAMAGE.
52 * ====================================================================
53 *
54 * This product includes cryptographic software written by Eric Young
55 * (eay@cryptsoft.com). This product includes software written by Tim
56 * Hudson (tjh@cryptsoft.com).
57 *
58 */
59
60#include <stdio.h>
61#include <stdlib.h>
b39fc560 62#include "internal/cryptlib.h"
c9777d26 63#ifndef OPENSSL_NO_ENGINE
0f113f3e 64# include <openssl/engine.h>
c9777d26 65#endif
33bed28b 66#include <openssl/evp.h>
5fe736e5 67#include "internal/asn1_int.h"
27af42f9 68#include "internal/evp_int.h"
0b6f3c66 69
0f113f3e 70typedef int sk_cmp_fn_type(const char *const *a, const char *const *b);
5ce278a7 71
4a640fb6 72DECLARE_CONST_STACK_OF(EVP_PKEY_METHOD)
df2ee0e2 73static STACK_OF(EVP_PKEY_METHOD) *app_pkey_methods = NULL;
0b6f3c66 74
0f113f3e 75static const EVP_PKEY_METHOD *standard_methods[] = {
d4f0339c 76#ifndef OPENSSL_NO_RSA
0f113f3e 77 &rsa_pkey_meth,
d4f0339c
DSH		 78#endif
79#ifndef OPENSSL_NO_DH
0f113f3e 80 &dh_pkey_meth,
d4f0339c
DSH		 81#endif
82#ifndef OPENSSL_NO_DSA
0f113f3e 83 &dsa_pkey_meth,
d4f0339c 84#endif
ef236ec3 85#ifndef OPENSSL_NO_EC
0f113f3e 86 &ec_pkey_meth,
ef236ec3 87#endif
0f113f3e
MC		 88 &hmac_pkey_meth,
89 &cmac_pkey_meth,
afb14cda 90#ifndef OPENSSL_NO_DH
0f113f3e 91 &dhx_pkey_meth
afb14cda 92#endif
0f113f3e 93};
0b6f3c66 94
606f6c47 95DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, const EVP_PKEY_METHOD *,
0f113f3e 96 pmeth);
babb3798 97
0f113f3e
MC		 98static int pmeth_cmp(const EVP_PKEY_METHOD *const *a,
99 const EVP_PKEY_METHOD *const *b)
100{
101 return ((*a)->pkey_id - (*b)->pkey_id);
102}
0b6f3c66 103
606f6c47 104IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, const EVP_PKEY_METHOD *,
0f113f3e 105 pmeth);
babb3798 106
c9777d26 107const EVP_PKEY_METHOD *EVP_PKEY_meth_find(int type)
0f113f3e
MC		 108{
109 EVP_PKEY_METHOD tmp;
110 const EVP_PKEY_METHOD *t = &tmp, **ret;
111 tmp.pkey_id = type;
112 if (app_pkey_methods) {
113 int idx;
114 idx = sk_EVP_PKEY_METHOD_find(app_pkey_methods, &tmp);
115 if (idx >= 0)
116 return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx);
117 }
118 ret = OBJ_bsearch_pmeth(&t, standard_methods,
119 sizeof(standard_methods) /
120 sizeof(EVP_PKEY_METHOD *));
121 if (!ret || !*ret)
122 return NULL;
123 return *ret;
124}
0b6f3c66 125
f5cda4cb 126static EVP_PKEY_CTX *int_ctx_new(EVP_PKEY *pkey, ENGINE *e, int id)
0f113f3e
MC		 127{
128 EVP_PKEY_CTX *ret;
129 const EVP_PKEY_METHOD *pmeth;
130 if (id == -1) {
131 if (!pkey || !pkey->ameth)
132 return NULL;
133 id = pkey->ameth->pkey_id;
134 }
a63bf2c5 135#ifndef OPENSSL_NO_ENGINE
0f113f3e
MC		 136 if (pkey && pkey->engine)
137 e = pkey->engine;
138 /* Try to find an ENGINE which implements this method */
139 if (e) {
140 if (!ENGINE_init(e)) {
141 EVPerr(EVP_F_INT_CTX_NEW, ERR_R_ENGINE_LIB);
142 return NULL;
143 }
144 } else
145 e = ENGINE_get_pkey_meth_engine(id);
146
147 /*
148 * If an ENGINE handled this method look it up. Othewise use internal
149 * tables.
150 */
151
152 if (e)
153 pmeth = ENGINE_get_pkey_meth(e, id);
154 else
a63bf2c5 155#endif
0f113f3e 156 pmeth = EVP_PKEY_meth_find(id);
c9777d26 157
0f113f3e
MC		 158 if (pmeth == NULL) {
159 EVPerr(EVP_F_INT_CTX_NEW, EVP_R_UNSUPPORTED_ALGORITHM);
160 return NULL;
161 }
c9777d26 162
64b25758 163 ret = OPENSSL_zalloc(sizeof(*ret));
90945fa3 164 if (ret == NULL) {
a63bf2c5 165#ifndef OPENSSL_NO_ENGINE
0f113f3e
MC		 166 if (e)
167 ENGINE_finish(e);
a63bf2c5 168#endif
0f113f3e
MC		 169 EVPerr(EVP_F_INT_CTX_NEW, ERR_R_MALLOC_FAILURE);
170 return NULL;
171 }
172 ret->engine = e;
173 ret->pmeth = pmeth;
174 ret->operation = EVP_PKEY_OP_UNDEFINED;
175 ret->pkey = pkey;
0f113f3e
MC		 176 if (pkey)
177 CRYPTO_add(&pkey->references, 1, CRYPTO_LOCK_EVP_PKEY);
0f113f3e
MC		 178
179 if (pmeth->init) {
180 if (pmeth->init(ret) <= 0) {
181 EVP_PKEY_CTX_free(ret);
182 return NULL;
183 }
184 }
185
186 return ret;
187}
188
189EVP_PKEY_METHOD *EVP_PKEY_meth_new(int id, int flags)
190{
191 EVP_PKEY_METHOD *pmeth;
b4faea50 192
b51bce94 193 pmeth = OPENSSL_zalloc(sizeof(*pmeth));
90945fa3 194 if (pmeth == NULL)
0f113f3e
MC		 195 return NULL;
196
0f113f3e
MC		 197 pmeth->pkey_id = id;
198 pmeth->flags = flags | EVP_PKEY_FLAG_DYNAMIC;
0f113f3e
MC		 199 return pmeth;
200}
ba30bad5 201
f830c68f 202void EVP_PKEY_meth_get0_info(int *ppkey_id, int *pflags,
0f113f3e
MC		 203 const EVP_PKEY_METHOD *meth)
204{
205 if (ppkey_id)
206 *ppkey_id = meth->pkey_id;
207 if (pflags)
208 *pflags = meth->flags;
209}
f830c68f
DSH		 210
211void EVP_PKEY_meth_copy(EVP_PKEY_METHOD *dst, const EVP_PKEY_METHOD *src)
0f113f3e 212{
f830c68f 213
0f113f3e
MC		 214 dst->init = src->init;
215 dst->copy = src->copy;
216 dst->cleanup = src->cleanup;
f830c68f 217
0f113f3e
MC		 218 dst->paramgen_init = src->paramgen_init;
219 dst->paramgen = src->paramgen;
f830c68f 220
0f113f3e
MC		 221 dst->keygen_init = src->keygen_init;
222 dst->keygen = src->keygen;
f830c68f 223
0f113f3e
MC		 224 dst->sign_init = src->sign_init;
225 dst->sign = src->sign;
f830c68f 226
0f113f3e
MC		 227 dst->verify_init = src->verify_init;
228 dst->verify = src->verify;
f830c68f 229
0f113f3e
MC		 230 dst->verify_recover_init = src->verify_recover_init;
231 dst->verify_recover = src->verify_recover;
f830c68f 232
0f113f3e
MC		 233 dst->signctx_init = src->signctx_init;
234 dst->signctx = src->signctx;
f830c68f 235
0f113f3e
MC		 236 dst->verifyctx_init = src->verifyctx_init;
237 dst->verifyctx = src->verifyctx;
f830c68f 238
0f113f3e
MC		 239 dst->encrypt_init = src->encrypt_init;
240 dst->encrypt = src->encrypt;
f830c68f 241
0f113f3e
MC		 242 dst->decrypt_init = src->decrypt_init;
243 dst->decrypt = src->decrypt;
f830c68f 244
0f113f3e
MC		 245 dst->derive_init = src->derive_init;
246 dst->derive = src->derive;
f830c68f 247
0f113f3e
MC		 248 dst->ctrl = src->ctrl;
249 dst->ctrl_str = src->ctrl_str;
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
8bdcef40 268EVP_PKEY_CTX *EVP_PKEY_CTX_dup(EVP_PKEY_CTX *pctx)
0f113f3e
MC		 269{
270 EVP_PKEY_CTX *rctx;
271 if (!pctx->pmeth || !pctx->pmeth->copy)
272 return NULL;
c9777d26 273#ifndef OPENSSL_NO_ENGINE
0f113f3e
MC		 274 /* Make sure it's safe to copy a pkey context using an ENGINE */
275 if (pctx->engine && !ENGINE_init(pctx->engine)) {
276 EVPerr(EVP_F_EVP_PKEY_CTX_DUP, ERR_R_ENGINE_LIB);
277 return 0;
278 }
c9777d26 279#endif
b4faea50 280 rctx = OPENSSL_malloc(sizeof(*rctx));
90945fa3 281 if (rctx == NULL)
0f113f3e 282 return NULL;
8bdcef40 283
0f113f3e 284 rctx->pmeth = pctx->pmeth;
c9777d26 285#ifndef OPENSSL_NO_ENGINE
0f113f3e 286 rctx->engine = pctx->engine;
c9777d26 287#endif
8bdcef40 288
0f113f3e
MC		 289 if (pctx->pkey)
290 CRYPTO_add(&pctx->pkey->references, 1, CRYPTO_LOCK_EVP_PKEY);
944f8580 291
0f113f3e 292 rctx->pkey = pctx->pkey;
8bdcef40 293
0f113f3e
MC		 294 if (pctx->peerkey)
295 CRYPTO_add(&pctx->peerkey->references, 1, CRYPTO_LOCK_EVP_PKEY);
944f8580 296
0f113f3e 297 rctx->peerkey = pctx->peerkey;
8bdcef40 298
0f113f3e
MC		 299 rctx->data = NULL;
300 rctx->app_data = NULL;
301 rctx->operation = pctx->operation;
8bdcef40 302
0f113f3e
MC		 303 if (pctx->pmeth->copy(rctx, pctx) > 0)
304 return rctx;
8bdcef40 305
0f113f3e
MC		 306 EVP_PKEY_CTX_free(rctx);
307 return NULL;
8bdcef40 308
0f113f3e 309}
8bdcef40 310
ba30bad5 311int EVP_PKEY_meth_add0(const EVP_PKEY_METHOD *pmeth)
0f113f3e
MC		 312{
313 if (app_pkey_methods == NULL) {
314 app_pkey_methods = sk_EVP_PKEY_METHOD_new(pmeth_cmp);
90945fa3 315 if (app_pkey_methods == NULL)
0f113f3e
MC		 316 return 0;
317 }
318 if (!sk_EVP_PKEY_METHOD_push(app_pkey_methods, pmeth))
319 return 0;
320 sk_EVP_PKEY_METHOD_sort(app_pkey_methods);
321 return 1;
322}
ba30bad5 323
5da98aa6 324void EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 325{
326 if (ctx == NULL)
327 return;
328 if (ctx->pmeth && ctx->pmeth->cleanup)
329 ctx->pmeth->cleanup(ctx);
c5ba2d99
RS		 330 EVP_PKEY_free(ctx->pkey);
331 EVP_PKEY_free(ctx->peerkey);
c9777d26 332#ifndef OPENSSL_NO_ENGINE
0f113f3e
MC		 333 if (ctx->engine)
334 /*
335 * The EVP_PKEY_CTX we used belongs to an ENGINE, release the
336 * functional reference we held for this reason.
337 */
338 ENGINE_finish(ctx->engine);
c9777d26 339#endif
0f113f3e
MC		 340 OPENSSL_free(ctx);
341}
5da98aa6 342
0b6f3c66 343int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype,
0f113f3e
MC		 344 int cmd, int p1, void *p2)
345{
346 int ret;
347 if (!ctx || !ctx->pmeth || !ctx->pmeth->ctrl) {
348 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED);
349 return -2;
350 }
351 if ((keytype != -1) && (ctx->pmeth->pkey_id != keytype))
352 return -1;
353
354 if (ctx->operation == EVP_PKEY_OP_UNDEFINED) {
355 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_NO_OPERATION_SET);
356 return -1;
357 }
358
359 if ((optype != -1) && !(ctx->operation & optype)) {
360 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_INVALID_OPERATION);
361 return -1;
362 }
363
364 ret = ctx->pmeth->ctrl(ctx, cmd, p1, p2);
365
366 if (ret == -2)
367 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED);
368
369 return ret;
370
371}
0b6f3c66 372
4a3dc3c0 373int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX *ctx,
0f113f3e
MC		 374 const char *name, const char *value)
375{
376 if (!ctx || !ctx->pmeth || !ctx->pmeth->ctrl_str) {
377 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR, EVP_R_COMMAND_NOT_SUPPORTED);
378 return -2;
379 }
86885c28 380 if (strcmp(name, "digest") == 0) {
0f113f3e 381 const EVP_MD *md;
75ebbd9a 382 if (value == NULL || (md = EVP_get_digestbyname(value)) == NULL) {
0f113f3e
MC		 383 EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR, EVP_R_INVALID_DIGEST);
384 return 0;
385 }
386 return EVP_PKEY_CTX_set_signature_md(ctx, md);
387 }
388 return ctx->pmeth->ctrl_str(ctx, name, value);
389}
f5cda4cb 390
b28dea4e 391int EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 392{
393 return ctx->operation;
394}
b28dea4e
DSH		 395
396void EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX *ctx, int *dat, int datlen)
0f113f3e
MC		 397{
398 ctx->keygen_info = dat;
399 ctx->keygen_info_count = datlen;
400}
b28dea4e 401
f5cda4cb 402void EVP_PKEY_CTX_set_data(EVP_PKEY_CTX *ctx, void *data)
0f113f3e
MC		 403{
404 ctx->data = data;
405}
f5cda4cb
DSH		 406
407void *EVP_PKEY_CTX_get_data(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 408{
409 return ctx->data;
410}
f5cda4cb 411
81cebb8b 412EVP_PKEY *EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 413{
414 return ctx->pkey;
415}
81cebb8b 416
0e1dba93 417EVP_PKEY *EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 418{
419 return ctx->peerkey;
420}
421
f5cda4cb 422void EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX *ctx, void *data)
0f113f3e
MC		 423{
424 ctx->app_data = data;
425}
f5cda4cb
DSH		 426
427void *EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX *ctx)
0f113f3e
MC		 428{
429 return ctx->app_data;
430}
ba30bad5
DSH		 431
432void EVP_PKEY_meth_set_init(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 433 int (*init) (EVP_PKEY_CTX *ctx))
434{
435 pmeth->init = init;
436}
8bdcef40
DSH		 437
438void EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 439 int (*copy) (EVP_PKEY_CTX *dst,
440 EVP_PKEY_CTX *src))
441{
442 pmeth->copy = copy;
443}
ba30bad5
DSH		 444
445void EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 446 void (*cleanup) (EVP_PKEY_CTX *ctx))
447{
448 pmeth->cleanup = cleanup;
449}
ba30bad5
DSH		 450
451void EVP_PKEY_meth_set_paramgen(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 452 int (*paramgen_init) (EVP_PKEY_CTX *ctx),
453 int (*paramgen) (EVP_PKEY_CTX *ctx,
454 EVP_PKEY *pkey))
455{
456 pmeth->paramgen_init = paramgen_init;
457 pmeth->paramgen = paramgen;
458}
ba30bad5
DSH		 459
460void EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 461 int (*keygen_init) (EVP_PKEY_CTX *ctx),
462 int (*keygen) (EVP_PKEY_CTX *ctx,
463 EVP_PKEY *pkey))
464{
465 pmeth->keygen_init = keygen_init;
466 pmeth->keygen = keygen;
467}
ba30bad5
DSH		 468
469void EVP_PKEY_meth_set_sign(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 470 int (*sign_init) (EVP_PKEY_CTX *ctx),
471 int (*sign) (EVP_PKEY_CTX *ctx,
472 unsigned char *sig, size_t *siglen,
473 const unsigned char *tbs,
474 size_t tbslen))
475{
476 pmeth->sign_init = sign_init;
477 pmeth->sign = sign;
478}
ba30bad5
DSH		 479
480void EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 481 int (*verify_init) (EVP_PKEY_CTX *ctx),
482 int (*verify) (EVP_PKEY_CTX *ctx,
483 const unsigned char *sig,
484 size_t siglen,
485 const unsigned char *tbs,
486 size_t tbslen))
487{
488 pmeth->verify_init = verify_init;
489 pmeth->verify = verify;
490}
ba30bad5
DSH		 491
492void EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 493 int (*verify_recover_init) (EVP_PKEY_CTX
494 *ctx),
495 int (*verify_recover) (EVP_PKEY_CTX
496 *ctx,
497 unsigned char
498 *sig,
499 size_t *siglen,
500 const unsigned
501 char *tbs,
502 size_t tbslen))
503{
504 pmeth->verify_recover_init = verify_recover_init;
505 pmeth->verify_recover = verify_recover;
506}
ba30bad5
DSH		 507
508void EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 509 int (*signctx_init) (EVP_PKEY_CTX *ctx,
510 EVP_MD_CTX *mctx),
511 int (*signctx) (EVP_PKEY_CTX *ctx,
512 unsigned char *sig,
513 size_t *siglen,
514 EVP_MD_CTX *mctx))
515{
516 pmeth->signctx_init = signctx_init;
517 pmeth->signctx = signctx;
518}
ba30bad5
DSH		 519
520void EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 521 int (*verifyctx_init) (EVP_PKEY_CTX *ctx,
522 EVP_MD_CTX *mctx),
523 int (*verifyctx) (EVP_PKEY_CTX *ctx,
524 const unsigned char *sig,
525 int siglen,
526 EVP_MD_CTX *mctx))
527{
528 pmeth->verifyctx_init = verifyctx_init;
529 pmeth->verifyctx = verifyctx;
530}
ba30bad5
DSH		 531
532void EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 533 int (*encrypt_init) (EVP_PKEY_CTX *ctx),
534 int (*encryptfn) (EVP_PKEY_CTX *ctx,
535 unsigned char *out,
536 size_t *outlen,
537 const unsigned char *in,
538 size_t inlen))
539{
540 pmeth->encrypt_init = encrypt_init;
541 pmeth->encrypt = encryptfn;
542}
ba30bad5
DSH		 543
544void EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 545 int (*decrypt_init) (EVP_PKEY_CTX *ctx),
546 int (*decrypt) (EVP_PKEY_CTX *ctx,
547 unsigned char *out,
548 size_t *outlen,
549 const unsigned char *in,
550 size_t inlen))
551{
552 pmeth->decrypt_init = decrypt_init;
553 pmeth->decrypt = decrypt;
554}
ba30bad5
DSH		 555
556void EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 557 int (*derive_init) (EVP_PKEY_CTX *ctx),
558 int (*derive) (EVP_PKEY_CTX *ctx,
559 unsigned char *key,
560 size_t *keylen))
561{
562 pmeth->derive_init = derive_init;
563 pmeth->derive = derive;
564}
ba30bad5
DSH		 565
566void EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD *pmeth,
0f113f3e
MC		 567 int (*ctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
568 void *p2),
569 int (*ctrl_str) (EVP_PKEY_CTX *ctx,
570 const char *type,
571 const char *value))
572{
573 pmeth->ctrl = ctrl;
574 pmeth->ctrl_str = ctrl_str;
575}
e7451ed1
DSH		 576
577void EVP_PKEY_meth_get_init(EVP_PKEY_METHOD *pmeth,
578 int (**pinit) (EVP_PKEY_CTX *ctx))
579{
580 *pinit = pmeth->init;
581}
582
583void EVP_PKEY_meth_get_copy(EVP_PKEY_METHOD *pmeth,
584 int (**pcopy) (EVP_PKEY_CTX *dst,
585 EVP_PKEY_CTX *src))
586{
587 *pcopy = pmeth->copy;
588}
589
590void EVP_PKEY_meth_get_cleanup(EVP_PKEY_METHOD *pmeth,
591 void (**pcleanup) (EVP_PKEY_CTX *ctx))
592{
593 *pcleanup = pmeth->cleanup;
594}
595
596void EVP_PKEY_meth_get_paramgen(EVP_PKEY_METHOD *pmeth,
597 int (**pparamgen_init) (EVP_PKEY_CTX *ctx),
598 int (**pparamgen) (EVP_PKEY_CTX *ctx,
599 EVP_PKEY *pkey))
600{
601 if (pparamgen_init)
602 *pparamgen_init = pmeth->paramgen_init;
603 if (pparamgen)
604 *pparamgen = pmeth->paramgen;
605}
606
607void EVP_PKEY_meth_get_keygen(EVP_PKEY_METHOD *pmeth,
608 int (**pkeygen_init) (EVP_PKEY_CTX *ctx),
609 int (**pkeygen) (EVP_PKEY_CTX *ctx,
610 EVP_PKEY *pkey))
611{
612 if (pkeygen_init)
613 *pkeygen_init = pmeth->keygen_init;
614 if (pkeygen)
615 *pkeygen = pmeth->keygen;
616}
617
618void EVP_PKEY_meth_get_sign(EVP_PKEY_METHOD *pmeth,
619 int (**psign_init) (EVP_PKEY_CTX *ctx),
620 int (**psign) (EVP_PKEY_CTX *ctx,
621 unsigned char *sig, size_t *siglen,
622 const unsigned char *tbs,
623 size_t tbslen))
624{
625 if (psign_init)
626 *psign_init = pmeth->sign_init;
627 if (psign)
628 *psign = pmeth->sign;
629}
630
631void EVP_PKEY_meth_get_verify(EVP_PKEY_METHOD *pmeth,
632 int (**pverify_init) (EVP_PKEY_CTX *ctx),
633 int (**pverify) (EVP_PKEY_CTX *ctx,
634 const unsigned char *sig,
635 size_t siglen,
636 const unsigned char *tbs,
637 size_t tbslen))
638{
639 if (pverify_init)
640 *pverify_init = pmeth->verify_init;
641 if (pverify)
642 *pverify = pmeth->verify;
643}
644
645void EVP_PKEY_meth_get_verify_recover(EVP_PKEY_METHOD *pmeth,
646 int (**pverify_recover_init) (EVP_PKEY_CTX
647 *ctx),
648 int (**pverify_recover) (EVP_PKEY_CTX
649 *ctx,
650 unsigned char
651 *sig,
652 size_t *siglen,
653 const unsigned
654 char *tbs,
655 size_t tbslen))
656{
657 if (pverify_recover_init)
658 *pverify_recover_init = pmeth->verify_recover_init;
659 if (pverify_recover)
660 *pverify_recover = pmeth->verify_recover;
661}
662
663void EVP_PKEY_meth_get_signctx(EVP_PKEY_METHOD *pmeth,
664 int (**psignctx_init) (EVP_PKEY_CTX *ctx,
665 EVP_MD_CTX *mctx),
666 int (**psignctx) (EVP_PKEY_CTX *ctx,
667 unsigned char *sig,
668 size_t *siglen,
669 EVP_MD_CTX *mctx))
670{
671 if (psignctx_init)
672 *psignctx_init = pmeth->signctx_init;
673 if (psignctx)
674 *psignctx = pmeth->signctx;
675}
676
677void EVP_PKEY_meth_get_verifyctx(EVP_PKEY_METHOD *pmeth,
678 int (**pverifyctx_init) (EVP_PKEY_CTX *ctx,
679 EVP_MD_CTX *mctx),
680 int (**pverifyctx) (EVP_PKEY_CTX *ctx,
681 const unsigned char *sig,
682 int siglen,
683 EVP_MD_CTX *mctx))
684{
685 if (pverifyctx_init)
686 *pverifyctx_init = pmeth->verifyctx_init;
687 if (pverifyctx)
688 *pverifyctx = pmeth->verifyctx;
689}
690
691void EVP_PKEY_meth_get_encrypt(EVP_PKEY_METHOD *pmeth,
692 int (**pencrypt_init) (EVP_PKEY_CTX *ctx),
693 int (**pencryptfn) (EVP_PKEY_CTX *ctx,
694 unsigned char *out,
695 size_t *outlen,
696 const unsigned char *in,
697 size_t inlen))
698{
699 if (pencrypt_init)
700 *pencrypt_init = pmeth->encrypt_init;
701 if (pencryptfn)
702 *pencryptfn = pmeth->encrypt;
703}
704
705void EVP_PKEY_meth_get_decrypt(EVP_PKEY_METHOD *pmeth,
706 int (**pdecrypt_init) (EVP_PKEY_CTX *ctx),
707 int (**pdecrypt) (EVP_PKEY_CTX *ctx,
708 unsigned char *out,
709 size_t *outlen,
710 const unsigned char *in,
711 size_t inlen))
712{
713 if (pdecrypt_init)
714 *pdecrypt_init = pmeth->decrypt_init;
715 if (pdecrypt)
716 *pdecrypt = pmeth->decrypt;
717}
718
719void EVP_PKEY_meth_get_derive(EVP_PKEY_METHOD *pmeth,
720 int (**pderive_init) (EVP_PKEY_CTX *ctx),
721 int (**pderive) (EVP_PKEY_CTX *ctx,
722 unsigned char *key,
723 size_t *keylen))
724{
725 if (pderive_init)
726 *pderive_init = pmeth->derive_init;
727 if (pderive)
728 *pderive = pmeth->derive;
729}
730
731void EVP_PKEY_meth_get_ctrl(EVP_PKEY_METHOD *pmeth,
732 int (**pctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
733 void *p2),
734 int (**pctrl_str) (EVP_PKEY_CTX *ctx,
735 const char *type,
736 const char *value))
737{
738 if (pctrl)
739 *pctrl = pmeth->ctrl;
740 if (pctrl_str)
741 *pctrl_str = pmeth->ctrl_str;
742}
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