1 /* $OpenBSD: pmeth_lib.c,v 1.22 2022/05/05 08:51:21 tb Exp $ */
2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3 * project 2006.
4 */
5 /* ====================================================================
6 * Copyright (c) 2006 The OpenSSL Project. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
18 * distribution.
19 *
20 * 3. All advertising materials mentioning features or use of this
21 * software must display the following acknowledgment:
22 * "This product includes software developed by the OpenSSL Project
23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24 *
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 * endorse or promote products derived from this software without
27 * prior written permission. For written permission, please contact
28 * licensing@OpenSSL.org.
29 *
30 * 5. Products derived from this software may not be called "OpenSSL"
31 * nor may "OpenSSL" appear in their names without prior written
32 * permission of the OpenSSL Project.
33 *
34 * 6. Redistributions of any form whatsoever must retain the following
35 * acknowledgment:
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38 *
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
52 *
53 * This product includes cryptographic software written by Eric Young
54 * (eay@cryptsoft.com). This product includes software written by Tim
55 * Hudson (tjh@cryptsoft.com).
56 *
57 */
58
59 #include <limits.h>
60 #include <stdio.h>
61 #include <stdlib.h>
62 #include <string.h>
63
64 #include <openssl/opensslconf.h>
65
66 #include <openssl/err.h>
67 #include <openssl/evp.h>
68 #include <openssl/objects.h>
69 #include <openssl/x509v3.h>
70
71 #ifndef OPENSSL_NO_ENGINE
72 #include <openssl/engine.h>
73 #endif
74
75 #include "asn1_locl.h"
76 #include "evp_locl.h"
77
78 typedef int sk_cmp_fn_type(const char * const *a, const char * const *b);
79
80 DECLARE_STACK_OF(EVP_PKEY_METHOD)
81 STACK_OF(EVP_PKEY_METHOD) *app_pkey_methods = NULL;
82
83 extern const EVP_PKEY_METHOD rsa_pkey_meth, rsa_pss_pkey_meth;
84 extern const EVP_PKEY_METHOD dh_pkey_meth, dsa_pkey_meth;
85 extern const EVP_PKEY_METHOD ec_pkey_meth, hmac_pkey_meth, cmac_pkey_meth;
86 extern const EVP_PKEY_METHOD gostimit_pkey_meth, gostr01_pkey_meth;
87 extern const EVP_PKEY_METHOD hkdf_pkey_meth;
88
89 static const EVP_PKEY_METHOD *standard_methods[] = {
90 #ifndef OPENSSL_NO_RSA
91 &rsa_pkey_meth,
92 #endif
93 #ifndef OPENSSL_NO_DH
94 &dh_pkey_meth,
95 #endif
96 #ifndef OPENSSL_NO_DSA
97 &dsa_pkey_meth,
98 #endif
99 #ifndef OPENSSL_NO_EC
100 &ec_pkey_meth,
101 #endif
102 #ifndef OPENSSL_NO_GOST
103 &gostr01_pkey_meth,
104 &gostimit_pkey_meth,
105 #endif
106 &hmac_pkey_meth,
107 &cmac_pkey_meth,
108 #ifndef OPENSSL_NO_RSA
109 &rsa_pss_pkey_meth,
110 #endif
111 &hkdf_pkey_meth,
112 };
113
114 static int pmeth_cmp_BSEARCH_CMP_FN(const void *, const void *);
115 static int pmeth_cmp(const EVP_PKEY_METHOD * const *, const EVP_PKEY_METHOD * const *);
116 static const EVP_PKEY_METHOD * *OBJ_bsearch_pmeth(const EVP_PKEY_METHOD * *key, const EVP_PKEY_METHOD * const *base, int num);
117
118 static int
pmeth_cmp(const EVP_PKEY_METHOD * const * a,const EVP_PKEY_METHOD * const * b)119 pmeth_cmp(const EVP_PKEY_METHOD * const *a, const EVP_PKEY_METHOD * const *b)
120 {
121 return ((*a)->pkey_id - (*b)->pkey_id);
122 }
123
124
125 static int
pmeth_cmp_BSEARCH_CMP_FN(const void * a_,const void * b_)126 pmeth_cmp_BSEARCH_CMP_FN(const void *a_, const void *b_)
127 {
128 const EVP_PKEY_METHOD * const *a = a_;
129 const EVP_PKEY_METHOD * const *b = b_;
130 return pmeth_cmp(a, b);
131 }
132
133 static const EVP_PKEY_METHOD * *
OBJ_bsearch_pmeth(const EVP_PKEY_METHOD ** key,const EVP_PKEY_METHOD * const * base,int num)134 OBJ_bsearch_pmeth(const EVP_PKEY_METHOD * *key, const EVP_PKEY_METHOD * const *base, int num)
135 {
136 return (const EVP_PKEY_METHOD * *)OBJ_bsearch_(key, base, num, sizeof(const EVP_PKEY_METHOD *),
137 pmeth_cmp_BSEARCH_CMP_FN);
138 }
139
140 const EVP_PKEY_METHOD *
EVP_PKEY_meth_find(int type)141 EVP_PKEY_meth_find(int type)
142 {
143 EVP_PKEY_METHOD tmp;
144 const EVP_PKEY_METHOD *t = &tmp, **ret;
145
146 tmp.pkey_id = type;
147 if (app_pkey_methods) {
148 int idx;
149 idx = sk_EVP_PKEY_METHOD_find(app_pkey_methods, &tmp);
150 if (idx >= 0)
151 return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx);
152 }
153 ret = OBJ_bsearch_pmeth(&t, standard_methods,
154 sizeof(standard_methods)/sizeof(EVP_PKEY_METHOD *));
155 if (!ret || !*ret)
156 return NULL;
157 return *ret;
158 }
159
160 static EVP_PKEY_CTX *
int_ctx_new(EVP_PKEY * pkey,ENGINE * e,int id)161 int_ctx_new(EVP_PKEY *pkey, ENGINE *e, int id)
162 {
163 EVP_PKEY_CTX *ret;
164 const EVP_PKEY_METHOD *pmeth;
165
166 if (id == -1) {
167 if (!pkey || !pkey->ameth)
168 return NULL;
169 id = pkey->ameth->pkey_id;
170 }
171 #ifndef OPENSSL_NO_ENGINE
172 if (pkey && pkey->engine)
173 e = pkey->engine;
174 /* Try to find an ENGINE which implements this method */
175 if (e) {
176 if (!ENGINE_init(e)) {
177 EVPerror(ERR_R_ENGINE_LIB);
178 return NULL;
179 }
180 } else
181 e = ENGINE_get_pkey_meth_engine(id);
182
183 /* If an ENGINE handled this method look it up. Othewise
184 * use internal tables.
185 */
186
187 if (e)
188 pmeth = ENGINE_get_pkey_meth(e, id);
189 else
190 #endif
191 pmeth = EVP_PKEY_meth_find(id);
192
193 if (pmeth == NULL) {
194 EVPerror(EVP_R_UNSUPPORTED_ALGORITHM);
195 return NULL;
196 }
197
198 ret = malloc(sizeof(EVP_PKEY_CTX));
199 if (ret == NULL) {
200 #ifndef OPENSSL_NO_ENGINE
201 ENGINE_finish(e);
202 #endif
203 EVPerror(ERR_R_MALLOC_FAILURE);
204 return NULL;
205 }
206 ret->engine = e;
207 ret->pmeth = pmeth;
208 ret->operation = EVP_PKEY_OP_UNDEFINED;
209 ret->pkey = pkey;
210 ret->peerkey = NULL;
211 ret->pkey_gencb = 0;
212 if (pkey)
213 CRYPTO_add(&pkey->references, 1, CRYPTO_LOCK_EVP_PKEY);
214 ret->data = NULL;
215
216 if (pmeth->init) {
217 if (pmeth->init(ret) <= 0) {
218 EVP_PKEY_CTX_free(ret);
219 return NULL;
220 }
221 }
222
223 return ret;
224 }
225
226 EVP_PKEY_METHOD*
EVP_PKEY_meth_new(int id,int flags)227 EVP_PKEY_meth_new(int id, int flags)
228 {
229 EVP_PKEY_METHOD *pmeth;
230
231 if ((pmeth = calloc(1, sizeof(EVP_PKEY_METHOD))) == NULL)
232 return NULL;
233
234 pmeth->pkey_id = id;
235 pmeth->flags = flags | EVP_PKEY_FLAG_DYNAMIC;
236
237 return pmeth;
238 }
239
240 void
EVP_PKEY_meth_get0_info(int * ppkey_id,int * pflags,const EVP_PKEY_METHOD * meth)241 EVP_PKEY_meth_get0_info(int *ppkey_id, int *pflags, const EVP_PKEY_METHOD *meth)
242 {
243 if (ppkey_id)
244 *ppkey_id = meth->pkey_id;
245 if (pflags)
246 *pflags = meth->flags;
247 }
248
249 void
EVP_PKEY_meth_copy(EVP_PKEY_METHOD * dst,const EVP_PKEY_METHOD * src)250 EVP_PKEY_meth_copy(EVP_PKEY_METHOD *dst, const EVP_PKEY_METHOD *src)
251 {
252 EVP_PKEY_METHOD preserve;
253
254 preserve.pkey_id = dst->pkey_id;
255 preserve.flags = dst->flags;
256
257 *dst = *src;
258
259 dst->pkey_id = preserve.pkey_id;
260 dst->flags = preserve.flags;
261 }
262
263 void
EVP_PKEY_meth_free(EVP_PKEY_METHOD * pmeth)264 EVP_PKEY_meth_free(EVP_PKEY_METHOD *pmeth)
265 {
266 if (pmeth && (pmeth->flags & EVP_PKEY_FLAG_DYNAMIC))
267 free(pmeth);
268 }
269
270 EVP_PKEY_CTX *
EVP_PKEY_CTX_new(EVP_PKEY * pkey,ENGINE * e)271 EVP_PKEY_CTX_new(EVP_PKEY *pkey, ENGINE *e)
272 {
273 return int_ctx_new(pkey, e, -1);
274 }
275
276 EVP_PKEY_CTX *
EVP_PKEY_CTX_new_id(int id,ENGINE * e)277 EVP_PKEY_CTX_new_id(int id, ENGINE *e)
278 {
279 return int_ctx_new(NULL, e, id);
280 }
281
282 EVP_PKEY_CTX *
EVP_PKEY_CTX_dup(EVP_PKEY_CTX * pctx)283 EVP_PKEY_CTX_dup(EVP_PKEY_CTX *pctx)
284 {
285 EVP_PKEY_CTX *rctx;
286
287 if (!pctx->pmeth || !pctx->pmeth->copy)
288 return NULL;
289 #ifndef OPENSSL_NO_ENGINE
290 /* Make sure it's safe to copy a pkey context using an ENGINE */
291 if (pctx->engine && !ENGINE_init(pctx->engine)) {
292 EVPerror(ERR_R_ENGINE_LIB);
293 return 0;
294 }
295 #endif
296 rctx = malloc(sizeof(EVP_PKEY_CTX));
297 if (!rctx)
298 return NULL;
299
300 rctx->pmeth = pctx->pmeth;
301 #ifndef OPENSSL_NO_ENGINE
302 rctx->engine = pctx->engine;
303 #endif
304
305 if (pctx->pkey)
306 CRYPTO_add(&pctx->pkey->references, 1, CRYPTO_LOCK_EVP_PKEY);
307
308 rctx->pkey = pctx->pkey;
309
310 if (pctx->peerkey)
311 CRYPTO_add(&pctx->peerkey->references, 1, CRYPTO_LOCK_EVP_PKEY);
312
313 rctx->peerkey = pctx->peerkey;
314
315 rctx->data = NULL;
316 rctx->app_data = NULL;
317 rctx->operation = pctx->operation;
318
319 if (pctx->pmeth->copy(rctx, pctx) > 0)
320 return rctx;
321
322 EVP_PKEY_CTX_free(rctx);
323 return NULL;
324 }
325
326 int
EVP_PKEY_meth_add0(const EVP_PKEY_METHOD * pmeth)327 EVP_PKEY_meth_add0(const EVP_PKEY_METHOD *pmeth)
328 {
329 if (app_pkey_methods == NULL) {
330 app_pkey_methods = sk_EVP_PKEY_METHOD_new(pmeth_cmp);
331 if (!app_pkey_methods)
332 return 0;
333 }
334 if (!sk_EVP_PKEY_METHOD_push(app_pkey_methods, pmeth))
335 return 0;
336 sk_EVP_PKEY_METHOD_sort(app_pkey_methods);
337 return 1;
338 }
339
340 void
EVP_PKEY_CTX_free(EVP_PKEY_CTX * ctx)341 EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx)
342 {
343 if (ctx == NULL)
344 return;
345 if (ctx->pmeth && ctx->pmeth->cleanup)
346 ctx->pmeth->cleanup(ctx);
347 EVP_PKEY_free(ctx->pkey);
348 EVP_PKEY_free(ctx->peerkey);
349 #ifndef OPENSSL_NO_ENGINE
350 ENGINE_finish(ctx->engine);
351 #endif
352 free(ctx);
353 }
354
355 int
EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX * ctx,int keytype,int optype,int cmd,int p1,void * p2)356 EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype, int cmd,
357 int p1, void *p2)
358 {
359 int ret;
360
361 if (!ctx || !ctx->pmeth || !ctx->pmeth->ctrl) {
362 EVPerror(EVP_R_COMMAND_NOT_SUPPORTED);
363 return -2;
364 }
365 if ((keytype != -1) && (ctx->pmeth->pkey_id != keytype))
366 return -1;
367
368 if (ctx->operation == EVP_PKEY_OP_UNDEFINED) {
369 EVPerror(EVP_R_NO_OPERATION_SET);
370 return -1;
371 }
372
373 if ((optype != -1) && !(ctx->operation & optype)) {
374 EVPerror(EVP_R_INVALID_OPERATION);
375 return -1;
376 }
377
378 ret = ctx->pmeth->ctrl(ctx, cmd, p1, p2);
379
380 if (ret == -2)
381 EVPerror(EVP_R_COMMAND_NOT_SUPPORTED);
382
383 return ret;
384
385 }
386
387 int
EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX * ctx,const char * name,const char * value)388 EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX *ctx, const char *name, const char *value)
389 {
390 if (!ctx || !ctx->pmeth || !ctx->pmeth->ctrl_str) {
391 EVPerror(EVP_R_COMMAND_NOT_SUPPORTED);
392 return -2;
393 }
394 if (!strcmp(name, "digest")) {
395 return EVP_PKEY_CTX_md(ctx, EVP_PKEY_OP_TYPE_SIG,
396 EVP_PKEY_CTRL_MD, value);
397 }
398 return ctx->pmeth->ctrl_str(ctx, name, value);
399 }
400
401 int
EVP_PKEY_CTX_str2ctrl(EVP_PKEY_CTX * ctx,int cmd,const char * str)402 EVP_PKEY_CTX_str2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *str)
403 {
404 size_t len;
405
406 if ((len = strlen(str)) > INT_MAX)
407 return -1;
408
409 return ctx->pmeth->ctrl(ctx, cmd, len, (void *)str);
410 }
411
412 int
EVP_PKEY_CTX_hex2ctrl(EVP_PKEY_CTX * ctx,int cmd,const char * hexstr)413 EVP_PKEY_CTX_hex2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *hexstr)
414 {
415 unsigned char *hex = NULL;
416 long length;
417 int ret = 0;
418
419 if ((hex = string_to_hex(hexstr, &length)) == NULL)
420 goto err;
421 if (length < 0 || length > INT_MAX) {
422 ret = -1;
423 goto err;
424 }
425
426 ret = ctx->pmeth->ctrl(ctx, cmd, length, hex);
427
428 err:
429 free(hex);
430 return ret;
431 }
432
433 int
EVP_PKEY_CTX_md(EVP_PKEY_CTX * ctx,int optype,int cmd,const char * md_name)434 EVP_PKEY_CTX_md(EVP_PKEY_CTX *ctx, int optype, int cmd, const char *md_name)
435 {
436 const EVP_MD *md;
437
438 if ((md = EVP_get_digestbyname(md_name)) == NULL) {
439 EVPerror(EVP_R_INVALID_DIGEST);
440 return 0;
441 }
442 return EVP_PKEY_CTX_ctrl(ctx, -1, optype, cmd, 0, (void *)md);
443 }
444
445 int
EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX * ctx)446 EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX *ctx)
447 {
448 return ctx->operation;
449 }
450
451 void
EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX * ctx,int * dat,int datlen)452 EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX *ctx, int *dat, int datlen)
453 {
454 ctx->keygen_info = dat;
455 ctx->keygen_info_count = datlen;
456 }
457
458 void
EVP_PKEY_CTX_set_data(EVP_PKEY_CTX * ctx,void * data)459 EVP_PKEY_CTX_set_data(EVP_PKEY_CTX *ctx, void *data)
460 {
461 ctx->data = data;
462 }
463
464 void *
EVP_PKEY_CTX_get_data(EVP_PKEY_CTX * ctx)465 EVP_PKEY_CTX_get_data(EVP_PKEY_CTX *ctx)
466 {
467 return ctx->data;
468 }
469
470 EVP_PKEY *
EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX * ctx)471 EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX *ctx)
472 {
473 return ctx->pkey;
474 }
475
476 EVP_PKEY *
EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX * ctx)477 EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX *ctx)
478 {
479 return ctx->peerkey;
480 }
481
482 void
EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX * ctx,void * data)483 EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX *ctx, void *data)
484 {
485 ctx->app_data = data;
486 }
487
488 void *
EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX * ctx)489 EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX *ctx)
490 {
491 return ctx->app_data;
492 }
493
494 void
EVP_PKEY_meth_set_init(EVP_PKEY_METHOD * pmeth,int (* init)(EVP_PKEY_CTX * ctx))495 EVP_PKEY_meth_set_init(EVP_PKEY_METHOD *pmeth,
496 int (*init)(EVP_PKEY_CTX *ctx))
497 {
498 pmeth->init = init;
499 }
500
501 void
EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD * pmeth,int (* copy)(EVP_PKEY_CTX * dst,EVP_PKEY_CTX * src))502 EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD *pmeth,
503 int (*copy)(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src))
504 {
505 pmeth->copy = copy;
506 }
507
508 void
EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD * pmeth,void (* cleanup)(EVP_PKEY_CTX * ctx))509 EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD *pmeth,
510 void (*cleanup)(EVP_PKEY_CTX *ctx))
511 {
512 pmeth->cleanup = cleanup;
513 }
514
515 void
EVP_PKEY_meth_set_paramgen(EVP_PKEY_METHOD * pmeth,int (* paramgen_init)(EVP_PKEY_CTX * ctx),int (* paramgen)(EVP_PKEY_CTX * ctx,EVP_PKEY * pkey))516 EVP_PKEY_meth_set_paramgen(EVP_PKEY_METHOD *pmeth,
517 int (*paramgen_init)(EVP_PKEY_CTX *ctx),
518 int (*paramgen)(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey))
519 {
520 pmeth->paramgen_init = paramgen_init;
521 pmeth->paramgen = paramgen;
522 }
523
524 void
EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD * pmeth,int (* keygen_init)(EVP_PKEY_CTX * ctx),int (* keygen)(EVP_PKEY_CTX * ctx,EVP_PKEY * pkey))525 EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD *pmeth,
526 int (*keygen_init)(EVP_PKEY_CTX *ctx),
527 int (*keygen)(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey))
528 {
529 pmeth->keygen_init = keygen_init;
530 pmeth->keygen = keygen;
531 }
532
533 void
EVP_PKEY_meth_set_sign(EVP_PKEY_METHOD * pmeth,int (* sign_init)(EVP_PKEY_CTX * ctx),int (* sign)(EVP_PKEY_CTX * ctx,unsigned char * sig,size_t * siglen,const unsigned char * tbs,size_t tbslen))534 EVP_PKEY_meth_set_sign(EVP_PKEY_METHOD *pmeth,
535 int (*sign_init)(EVP_PKEY_CTX *ctx),
536 int (*sign)(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
537 const unsigned char *tbs, size_t tbslen))
538 {
539 pmeth->sign_init = sign_init;
540 pmeth->sign = sign;
541 }
542
543 void
EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD * pmeth,int (* verify_init)(EVP_PKEY_CTX * ctx),int (* verify)(EVP_PKEY_CTX * ctx,const unsigned char * sig,size_t siglen,const unsigned char * tbs,size_t tbslen))544 EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD *pmeth,
545 int (*verify_init)(EVP_PKEY_CTX *ctx),
546 int (*verify)(EVP_PKEY_CTX *ctx, const unsigned char *sig, size_t siglen,
547 const unsigned char *tbs, size_t tbslen))
548 {
549 pmeth->verify_init = verify_init;
550 pmeth->verify = verify;
551 }
552
553 void
EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD * pmeth,int (* verify_recover_init)(EVP_PKEY_CTX * ctx),int (* verify_recover)(EVP_PKEY_CTX * ctx,unsigned char * sig,size_t * siglen,const unsigned char * tbs,size_t tbslen))554 EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD *pmeth,
555 int (*verify_recover_init)(EVP_PKEY_CTX *ctx),
556 int (*verify_recover)(EVP_PKEY_CTX *ctx,
557 unsigned char *sig, size_t *siglen,
558 const unsigned char *tbs, size_t tbslen))
559 {
560 pmeth->verify_recover_init = verify_recover_init;
561 pmeth->verify_recover = verify_recover;
562 }
563
564 void
EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD * pmeth,int (* signctx_init)(EVP_PKEY_CTX * ctx,EVP_MD_CTX * mctx),int (* signctx)(EVP_PKEY_CTX * ctx,unsigned char * sig,size_t * siglen,EVP_MD_CTX * mctx))565 EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD *pmeth,
566 int (*signctx_init)(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx),
567 int (*signctx)(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
568 EVP_MD_CTX *mctx))
569 {
570 pmeth->signctx_init = signctx_init;
571 pmeth->signctx = signctx;
572 }
573
574 void
EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD * pmeth,int (* verifyctx_init)(EVP_PKEY_CTX * ctx,EVP_MD_CTX * mctx),int (* verifyctx)(EVP_PKEY_CTX * ctx,const unsigned char * sig,int siglen,EVP_MD_CTX * mctx))575 EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD *pmeth,
576 int (*verifyctx_init)(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx),
577 int (*verifyctx)(EVP_PKEY_CTX *ctx, const unsigned char *sig, int siglen,
578 EVP_MD_CTX *mctx))
579 {
580 pmeth->verifyctx_init = verifyctx_init;
581 pmeth->verifyctx = verifyctx;
582 }
583
584 void
EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD * pmeth,int (* encrypt_init)(EVP_PKEY_CTX * ctx),int (* encryptfn)(EVP_PKEY_CTX * ctx,unsigned char * out,size_t * outlen,const unsigned char * in,size_t inlen))585 EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD *pmeth,
586 int (*encrypt_init)(EVP_PKEY_CTX *ctx),
587 int (*encryptfn)(EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
588 const unsigned char *in, size_t inlen))
589 {
590 pmeth->encrypt_init = encrypt_init;
591 pmeth->encrypt = encryptfn;
592 }
593
594 void
EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD * pmeth,int (* decrypt_init)(EVP_PKEY_CTX * ctx),int (* decrypt)(EVP_PKEY_CTX * ctx,unsigned char * out,size_t * outlen,const unsigned char * in,size_t inlen))595 EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD *pmeth,
596 int (*decrypt_init)(EVP_PKEY_CTX *ctx),
597 int (*decrypt)(EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
598 const unsigned char *in, size_t inlen))
599 {
600 pmeth->decrypt_init = decrypt_init;
601 pmeth->decrypt = decrypt;
602 }
603
604 void
EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD * pmeth,int (* derive_init)(EVP_PKEY_CTX * ctx),int (* derive)(EVP_PKEY_CTX * ctx,unsigned char * key,size_t * keylen))605 EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD *pmeth,
606 int (*derive_init)(EVP_PKEY_CTX *ctx),
607 int (*derive)(EVP_PKEY_CTX *ctx, unsigned char *key, size_t *keylen))
608 {
609 pmeth->derive_init = derive_init;
610 pmeth->derive = derive;
611 }
612
613 void
EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD * pmeth,int (* ctrl)(EVP_PKEY_CTX * ctx,int type,int p1,void * p2),int (* ctrl_str)(EVP_PKEY_CTX * ctx,const char * type,const char * value))614 EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD *pmeth,
615 int (*ctrl)(EVP_PKEY_CTX *ctx, int type, int p1, void *p2),
616 int (*ctrl_str)(EVP_PKEY_CTX *ctx, const char *type, const char *value))
617 {
618 pmeth->ctrl = ctrl;
619 pmeth->ctrl_str = ctrl_str;
620 }
621
622 void
EVP_PKEY_meth_set_check(EVP_PKEY_METHOD * pmeth,int (* check)(EVP_PKEY * pkey))623 EVP_PKEY_meth_set_check(EVP_PKEY_METHOD *pmeth, int (*check)(EVP_PKEY *pkey))
624 {
625 pmeth->check = check;
626 }
627
628 void
EVP_PKEY_meth_set_public_check(EVP_PKEY_METHOD * pmeth,int (* public_check)(EVP_PKEY * pkey))629 EVP_PKEY_meth_set_public_check(EVP_PKEY_METHOD *pmeth,
630 int (*public_check)(EVP_PKEY *pkey))
631 {
632 pmeth->public_check = public_check;
633 }
634
635 void
EVP_PKEY_meth_set_param_check(EVP_PKEY_METHOD * pmeth,int (* param_check)(EVP_PKEY * pkey))636 EVP_PKEY_meth_set_param_check(EVP_PKEY_METHOD *pmeth,
637 int (*param_check)(EVP_PKEY *pkey))
638 {
639 pmeth->param_check = param_check;
640 }
641