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source: vbox/trunk/src/libs/openssl-3.3.2/crypto/evp/pmeth_lib.c@ 108358

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openssl-3.3.2: Exported all files to OSE and removed .scm-settings ​bugref:10757
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1/*
2 * Copyright 2006-2024 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10/*
11 * Low level key APIs (DH etc) are deprecated for public use, but still ok for
12 * internal use.
13 */
14#include "internal/deprecated.h"
15
16#include <stdio.h>
17#include <stdlib.h>
18#ifndef FIPS_MODULE
19# include <openssl/engine.h>
20#endif
21#include <openssl/evp.h>
22#include <openssl/core_names.h>
23#include <openssl/dh.h>
24#include <openssl/rsa.h>
25#include <openssl/kdf.h>
26#include "internal/cryptlib.h"
27#ifndef FIPS_MODULE
28# include "crypto/asn1.h"
29#endif
30#include "crypto/evp.h"
31#include "crypto/dh.h"
32#include "crypto/ec.h"
33#include "internal/ffc.h"
34#include "internal/numbers.h"
35#include "internal/provider.h"
36#include "evp_local.h"
37
38#ifndef FIPS_MODULE
39
40static int evp_pkey_ctx_store_cached_data(EVP_PKEY_CTX *ctx,
41 int keytype, int optype,
42 int cmd, const char *name,
43 const void *data, size_t data_len);
44static void evp_pkey_ctx_free_cached_data(EVP_PKEY_CTX *ctx,
45 int cmd, const char *name);
46static void evp_pkey_ctx_free_all_cached_data(EVP_PKEY_CTX *ctx);
47
48typedef const EVP_PKEY_METHOD *(*pmeth_fn)(void);
49typedef int sk_cmp_fn_type(const char *const *a, const char *const *b);
50
51static STACK_OF(EVP_PKEY_METHOD) *app_pkey_methods = NULL;
52
53/* This array needs to be in order of NIDs */
54static pmeth_fn standard_methods[] = {
55 ossl_rsa_pkey_method,
56# ifndef OPENSSL_NO_DH
57 ossl_dh_pkey_method,
58# endif
59# ifndef OPENSSL_NO_DSA
60 ossl_dsa_pkey_method,
61# endif
62# ifndef OPENSSL_NO_EC
63 ossl_ec_pkey_method,
64# endif
65 ossl_rsa_pss_pkey_method,
66# ifndef OPENSSL_NO_DH
67 ossl_dhx_pkey_method,
68# endif
69# ifndef OPENSSL_NO_ECX
70 ossl_ecx25519_pkey_method,
71 ossl_ecx448_pkey_method,
72 ossl_ed25519_pkey_method,
73 ossl_ed448_pkey_method,
74# endif
75};
76
77DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, pmeth_fn, pmeth_func);
78
79static int pmeth_func_cmp(const EVP_PKEY_METHOD *const *a, pmeth_fn const *b)
80{
81 return ((*a)->pkey_id - ((**b)())->pkey_id);
82}
83
84IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, pmeth_fn, pmeth_func);
85
86static int pmeth_cmp(const EVP_PKEY_METHOD *const *a,
87 const EVP_PKEY_METHOD *const *b)
88{
89 return ((*a)->pkey_id - (*b)->pkey_id);
90}
91
92static const EVP_PKEY_METHOD *evp_pkey_meth_find_added_by_application(int type)
93{
94 if (app_pkey_methods != NULL) {
95 int idx;
96 EVP_PKEY_METHOD tmp;
97
98 tmp.pkey_id = type;
99 idx = sk_EVP_PKEY_METHOD_find(app_pkey_methods, &tmp);
100 if (idx >= 0)
101 return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx);
102 }
103 return NULL;
104}
105
106const EVP_PKEY_METHOD *EVP_PKEY_meth_find(int type)
107{
108 pmeth_fn *ret;
109 EVP_PKEY_METHOD tmp;
110 const EVP_PKEY_METHOD *t;
111
112 if ((t = evp_pkey_meth_find_added_by_application(type)) != NULL)
113 return t;
114
115 tmp.pkey_id = type;
116 t = &tmp;
117 ret = OBJ_bsearch_pmeth_func(&t, standard_methods,
118 OSSL_NELEM(standard_methods));
119 if (ret == NULL || *ret == NULL)
120 return NULL;
121 return (**ret)();
122}
123
124EVP_PKEY_METHOD *EVP_PKEY_meth_new(int id, int flags)
125{
126 EVP_PKEY_METHOD *pmeth;
127
128 pmeth = OPENSSL_zalloc(sizeof(*pmeth));
129 if (pmeth == NULL)
130 return NULL;
131
132 pmeth->pkey_id = id;
133 pmeth->flags = flags | EVP_PKEY_FLAG_DYNAMIC;
134 return pmeth;
135}
136#endif /* FIPS_MODULE */
137
138int evp_pkey_ctx_state(const EVP_PKEY_CTX *ctx)
139{
140 if (ctx->operation == EVP_PKEY_OP_UNDEFINED)
141 return EVP_PKEY_STATE_UNKNOWN;
142
143 if ((EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
144 && ctx->op.kex.algctx != NULL)
145 || (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
146 && ctx->op.sig.algctx != NULL)
147 || (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
148 && ctx->op.ciph.algctx != NULL)
149 || (EVP_PKEY_CTX_IS_GEN_OP(ctx)
150 && ctx->op.keymgmt.genctx != NULL)
151 || (EVP_PKEY_CTX_IS_KEM_OP(ctx)
152 && ctx->op.encap.algctx != NULL))
153 return EVP_PKEY_STATE_PROVIDER;
154
155 return EVP_PKEY_STATE_LEGACY;
156}
157
158static EVP_PKEY_CTX *int_ctx_new(OSSL_LIB_CTX *libctx,
159 EVP_PKEY *pkey, ENGINE *e,
160 const char *keytype, const char *propquery,
161 int id)
162
163{
164 EVP_PKEY_CTX *ret = NULL;
165 const EVP_PKEY_METHOD *pmeth = NULL, *app_pmeth = NULL;
166 EVP_KEYMGMT *keymgmt = NULL;
167
168 /* Code below to be removed when legacy support is dropped. */
169 /* BEGIN legacy */
170 if (id == -1) {
171 if (pkey != NULL && !evp_pkey_is_provided(pkey)) {
172 id = pkey->type;
173 } else {
174 if (pkey != NULL) {
175 /* Must be provided if we get here */
176 keytype = EVP_KEYMGMT_get0_name(pkey->keymgmt);
177 }
178#ifndef FIPS_MODULE
179 if (keytype != NULL) {
180 id = evp_pkey_name2type(keytype);
181 if (id == NID_undef)
182 id = -1;
183 }
184#endif
185 }
186 }
187 /* If no ID was found here, we can only resort to find a keymgmt */
188 if (id == -1) {
189#ifndef FIPS_MODULE
190 /* Using engine with a key without id will not work */
191 if (e != NULL) {
192 ERR_raise(ERR_LIB_EVP, EVP_R_UNSUPPORTED_ALGORITHM);
193 return NULL;
194 }
195#endif
196 goto common;
197 }
198
199#ifndef FIPS_MODULE
200 /*
201 * Here, we extract what information we can for the purpose of
202 * supporting usage with implementations from providers, to make
203 * for a smooth transition from legacy stuff to provider based stuff.
204 *
205 * If an engine is given, this is entirely legacy, and we should not
206 * pretend anything else, so we clear the name.
207 */
208 if (e != NULL)
209 keytype = NULL;
210 if (e == NULL && (pkey == NULL || pkey->foreign == 0))
211 keytype = OBJ_nid2sn(id);
212
213# ifndef OPENSSL_NO_ENGINE
214 if (e == NULL && pkey != NULL)
215 e = pkey->pmeth_engine != NULL ? pkey->pmeth_engine : pkey->engine;
216 /* Try to find an ENGINE which implements this method */
217 if (e != NULL) {
218 if (!ENGINE_init(e)) {
219 ERR_raise(ERR_LIB_EVP, ERR_R_ENGINE_LIB);
220 return NULL;
221 }
222 } else {
223 e = ENGINE_get_pkey_meth_engine(id);
224 }
225
226 /*
227 * If an ENGINE handled this method look it up. Otherwise use internal
228 * tables.
229 */
230 if (e != NULL)
231 pmeth = ENGINE_get_pkey_meth(e, id);
232 else
233# endif /* OPENSSL_NO_ENGINE */
234 if (pkey != NULL && pkey->foreign)
235 pmeth = EVP_PKEY_meth_find(id);
236 else
237 app_pmeth = pmeth = evp_pkey_meth_find_added_by_application(id);
238
239 /* END legacy */
240#endif /* FIPS_MODULE */
241 common:
242 /*
243 * If there's no engine and no app supplied pmeth and there's a name, we try
244 * fetching a provider implementation.
245 */
246 if (e == NULL && app_pmeth == NULL && keytype != NULL) {
247 /*
248 * If |pkey| is given and is provided, we take a reference to its
249 * keymgmt. Otherwise, we fetch one for the keytype we got. This
250 * is to ensure that operation init functions can access what they
251 * need through this single pointer.
252 */
253 if (pkey != NULL && pkey->keymgmt != NULL) {
254 if (!EVP_KEYMGMT_up_ref(pkey->keymgmt))
255 ERR_raise(ERR_LIB_EVP, EVP_R_INITIALIZATION_ERROR);
256 else
257 keymgmt = pkey->keymgmt;
258 } else {
259 keymgmt = EVP_KEYMGMT_fetch(libctx, keytype, propquery);
260 }
261 if (keymgmt == NULL)
262 return NULL; /* EVP_KEYMGMT_fetch() recorded an error */
263
264#ifndef FIPS_MODULE
265 /*
266 * Chase down the legacy NID, as that might be needed for diverse
267 * purposes, such as ensure that EVP_PKEY_type() can return sensible
268 * values. We go through all keymgmt names, because the keytype
269 * that's passed to this function doesn't necessarily translate
270 * directly.
271 */
272 if (keymgmt != NULL) {
273 int tmp_id = evp_keymgmt_get_legacy_alg(keymgmt);
274
275 if (tmp_id != NID_undef) {
276 if (id == -1) {
277 id = tmp_id;
278 } else {
279 /*
280 * It really really shouldn't differ. If it still does,
281 * something is very wrong.
282 */
283 if (!ossl_assert(id == tmp_id)) {
284 ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR);
285 EVP_KEYMGMT_free(keymgmt);
286 return NULL;
287 }
288 }
289 }
290 }
291#endif
292 }
293
294 if (pmeth == NULL && keymgmt == NULL) {
295 ERR_raise(ERR_LIB_EVP, EVP_R_UNSUPPORTED_ALGORITHM);
296 } else {
297 ret = OPENSSL_zalloc(sizeof(*ret));
298 }
299
300#if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODULE)
301 if ((ret == NULL || pmeth == NULL) && e != NULL)
302 ENGINE_finish(e);
303#endif
304
305 if (ret == NULL) {
306 EVP_KEYMGMT_free(keymgmt);
307 return NULL;
308 }
309 if (propquery != NULL) {
310 ret->propquery = OPENSSL_strdup(propquery);
311 if (ret->propquery == NULL) {
312 OPENSSL_free(ret);
313 EVP_KEYMGMT_free(keymgmt);
314 return NULL;
315 }
316 }
317 ret->libctx = libctx;
318 ret->keytype = keytype;
319 ret->keymgmt = keymgmt;
320 ret->legacy_keytype = id;
321 ret->engine = e;
322 ret->pmeth = pmeth;
323 ret->operation = EVP_PKEY_OP_UNDEFINED;
324 ret->pkey = pkey;
325 if (pkey != NULL)
326 EVP_PKEY_up_ref(pkey);
327
328 if (pmeth != NULL && pmeth->init != NULL) {
329 if (pmeth->init(ret) <= 0) {
330 ret->pmeth = NULL;
331 EVP_PKEY_CTX_free(ret);
332 return NULL;
333 }
334 }
335
336 return ret;
337}
338
339/*- All methods below can also be used in FIPS_MODULE */
340
341EVP_PKEY_CTX *EVP_PKEY_CTX_new_from_name(OSSL_LIB_CTX *libctx,
342 const char *name,
343 const char *propquery)
344{
345 return int_ctx_new(libctx, NULL, NULL, name, propquery, -1);
346}
347
348EVP_PKEY_CTX *EVP_PKEY_CTX_new_from_pkey(OSSL_LIB_CTX *libctx, EVP_PKEY *pkey,
349 const char *propquery)
350{
351 return int_ctx_new(libctx, pkey, NULL, NULL, propquery, -1);
352}
353
354void evp_pkey_ctx_free_old_ops(EVP_PKEY_CTX *ctx)
355{
356 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
357 if (ctx->op.sig.algctx != NULL && ctx->op.sig.signature != NULL)
358 ctx->op.sig.signature->freectx(ctx->op.sig.algctx);
359 EVP_SIGNATURE_free(ctx->op.sig.signature);
360 ctx->op.sig.algctx = NULL;
361 ctx->op.sig.signature = NULL;
362 } else if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
363 if (ctx->op.kex.algctx != NULL && ctx->op.kex.exchange != NULL)
364 ctx->op.kex.exchange->freectx(ctx->op.kex.algctx);
365 EVP_KEYEXCH_free(ctx->op.kex.exchange);
366 ctx->op.kex.algctx = NULL;
367 ctx->op.kex.exchange = NULL;
368 } else if (EVP_PKEY_CTX_IS_KEM_OP(ctx)) {
369 if (ctx->op.encap.algctx != NULL && ctx->op.encap.kem != NULL)
370 ctx->op.encap.kem->freectx(ctx->op.encap.algctx);
371 EVP_KEM_free(ctx->op.encap.kem);
372 ctx->op.encap.algctx = NULL;
373 ctx->op.encap.kem = NULL;
374 }
375 else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)) {
376 if (ctx->op.ciph.algctx != NULL && ctx->op.ciph.cipher != NULL)
377 ctx->op.ciph.cipher->freectx(ctx->op.ciph.algctx);
378 EVP_ASYM_CIPHER_free(ctx->op.ciph.cipher);
379 ctx->op.ciph.algctx = NULL;
380 ctx->op.ciph.cipher = NULL;
381 } else if (EVP_PKEY_CTX_IS_GEN_OP(ctx)) {
382 if (ctx->op.keymgmt.genctx != NULL && ctx->keymgmt != NULL)
383 evp_keymgmt_gen_cleanup(ctx->keymgmt, ctx->op.keymgmt.genctx);
384 }
385}
386
387void EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx)
388{
389 if (ctx == NULL)
390 return;
391 if (ctx->pmeth && ctx->pmeth->cleanup)
392 ctx->pmeth->cleanup(ctx);
393
394 evp_pkey_ctx_free_old_ops(ctx);
395#ifndef FIPS_MODULE
396 evp_pkey_ctx_free_all_cached_data(ctx);
397#endif
398 EVP_KEYMGMT_free(ctx->keymgmt);
399
400 OPENSSL_free(ctx->propquery);
401 EVP_PKEY_free(ctx->pkey);
402 EVP_PKEY_free(ctx->peerkey);
403#if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODULE)
404 ENGINE_finish(ctx->engine);
405#endif
406 BN_free(ctx->rsa_pubexp);
407 OPENSSL_free(ctx);
408}
409
410#ifndef FIPS_MODULE
411
412void EVP_PKEY_meth_get0_info(int *ppkey_id, int *pflags,
413 const EVP_PKEY_METHOD *meth)
414{
415 if (ppkey_id)
416 *ppkey_id = meth->pkey_id;
417 if (pflags)
418 *pflags = meth->flags;
419}
420
421void EVP_PKEY_meth_copy(EVP_PKEY_METHOD *dst, const EVP_PKEY_METHOD *src)
422{
423 int pkey_id = dst->pkey_id;
424 int flags = dst->flags;
425
426 *dst = *src;
427
428 /* We only copy the function pointers so restore the other values */
429 dst->pkey_id = pkey_id;
430 dst->flags = flags;
431}
432
433void EVP_PKEY_meth_free(EVP_PKEY_METHOD *pmeth)
434{
435 if (pmeth && (pmeth->flags & EVP_PKEY_FLAG_DYNAMIC))
436 OPENSSL_free(pmeth);
437}
438
439EVP_PKEY_CTX *EVP_PKEY_CTX_new(EVP_PKEY *pkey, ENGINE *e)
440{
441 return int_ctx_new(NULL, pkey, e, NULL, NULL, -1);
442}
443
444EVP_PKEY_CTX *EVP_PKEY_CTX_new_id(int id, ENGINE *e)
445{
446 return int_ctx_new(NULL, NULL, e, NULL, NULL, id);
447}
448
449EVP_PKEY_CTX *EVP_PKEY_CTX_dup(const EVP_PKEY_CTX *pctx)
450{
451 EVP_PKEY_CTX *rctx;
452
453# ifndef OPENSSL_NO_ENGINE
454 /* Make sure it's safe to copy a pkey context using an ENGINE */
455 if (pctx->engine && !ENGINE_init(pctx->engine)) {
456 ERR_raise(ERR_LIB_EVP, ERR_R_ENGINE_LIB);
457 return 0;
458 }
459# endif
460 rctx = OPENSSL_zalloc(sizeof(*rctx));
461 if (rctx == NULL)
462 return NULL;
463
464 if (pctx->pkey != NULL)
465 EVP_PKEY_up_ref(pctx->pkey);
466 rctx->pkey = pctx->pkey;
467 rctx->operation = pctx->operation;
468 rctx->libctx = pctx->libctx;
469 rctx->keytype = pctx->keytype;
470 rctx->propquery = NULL;
471 if (pctx->propquery != NULL) {
472 rctx->propquery = OPENSSL_strdup(pctx->propquery);
473 if (rctx->propquery == NULL)
474 goto err;
475 }
476 rctx->legacy_keytype = pctx->legacy_keytype;
477
478 if (EVP_PKEY_CTX_IS_DERIVE_OP(pctx)) {
479 if (pctx->op.kex.exchange != NULL) {
480 rctx->op.kex.exchange = pctx->op.kex.exchange;
481 if (!EVP_KEYEXCH_up_ref(rctx->op.kex.exchange))
482 goto err;
483 }
484 if (pctx->op.kex.algctx != NULL) {
485 if (!ossl_assert(pctx->op.kex.exchange != NULL))
486 goto err;
487
488 if (pctx->op.kex.exchange->dupctx != NULL)
489 rctx->op.kex.algctx
490 = pctx->op.kex.exchange->dupctx(pctx->op.kex.algctx);
491
492 if (rctx->op.kex.algctx == NULL) {
493 EVP_KEYEXCH_free(rctx->op.kex.exchange);
494 rctx->op.kex.exchange = NULL;
495 goto err;
496 }
497 return rctx;
498 }
499 } else if (EVP_PKEY_CTX_IS_SIGNATURE_OP(pctx)) {
500 if (pctx->op.sig.signature != NULL) {
501 rctx->op.sig.signature = pctx->op.sig.signature;
502 if (!EVP_SIGNATURE_up_ref(rctx->op.sig.signature))
503 goto err;
504 }
505 if (pctx->op.sig.algctx != NULL) {
506 if (!ossl_assert(pctx->op.sig.signature != NULL))
507 goto err;
508
509 if (pctx->op.sig.signature->dupctx != NULL)
510 rctx->op.sig.algctx
511 = pctx->op.sig.signature->dupctx(pctx->op.sig.algctx);
512
513 if (rctx->op.sig.algctx == NULL) {
514 EVP_SIGNATURE_free(rctx->op.sig.signature);
515 rctx->op.sig.signature = NULL;
516 goto err;
517 }
518 return rctx;
519 }
520 } else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(pctx)) {
521 if (pctx->op.ciph.cipher != NULL) {
522 rctx->op.ciph.cipher = pctx->op.ciph.cipher;
523 if (!EVP_ASYM_CIPHER_up_ref(rctx->op.ciph.cipher))
524 goto err;
525 }
526 if (pctx->op.ciph.algctx != NULL) {
527 if (!ossl_assert(pctx->op.ciph.cipher != NULL))
528 goto err;
529
530 if (pctx->op.ciph.cipher->dupctx != NULL)
531 rctx->op.ciph.algctx
532 = pctx->op.ciph.cipher->dupctx(pctx->op.ciph.algctx);
533
534 if (rctx->op.ciph.algctx == NULL) {
535 EVP_ASYM_CIPHER_free(rctx->op.ciph.cipher);
536 rctx->op.ciph.cipher = NULL;
537 goto err;
538 }
539 return rctx;
540 }
541 } else if (EVP_PKEY_CTX_IS_KEM_OP(pctx)) {
542 if (pctx->op.encap.kem != NULL) {
543 rctx->op.encap.kem = pctx->op.encap.kem;
544 if (!EVP_KEM_up_ref(rctx->op.encap.kem))
545 goto err;
546 }
547 if (pctx->op.encap.algctx != NULL) {
548 if (!ossl_assert(pctx->op.encap.kem != NULL))
549 goto err;
550
551 if (pctx->op.encap.kem->dupctx != NULL)
552 rctx->op.encap.algctx
553 = pctx->op.encap.kem->dupctx(pctx->op.encap.algctx);
554
555 if (rctx->op.encap.algctx == NULL) {
556 EVP_KEM_free(rctx->op.encap.kem);
557 rctx->op.encap.kem = NULL;
558 goto err;
559 }
560 return rctx;
561 }
562 } else if (EVP_PKEY_CTX_IS_GEN_OP(pctx)) {
563 /* Not supported - This would need a gen_dupctx() to work */
564 goto err;
565 }
566
567 rctx->pmeth = pctx->pmeth;
568# ifndef OPENSSL_NO_ENGINE
569 rctx->engine = pctx->engine;
570# endif
571
572 if (pctx->peerkey != NULL)
573 EVP_PKEY_up_ref(pctx->peerkey);
574 rctx->peerkey = pctx->peerkey;
575
576 if (pctx->pmeth == NULL) {
577 if (rctx->operation == EVP_PKEY_OP_UNDEFINED) {
578 EVP_KEYMGMT *tmp_keymgmt = pctx->keymgmt;
579 void *provkey;
580
581 provkey = evp_pkey_export_to_provider(pctx->pkey, pctx->libctx,
582 &tmp_keymgmt, pctx->propquery);
583 if (provkey == NULL)
584 goto err;
585 if (!EVP_KEYMGMT_up_ref(tmp_keymgmt))
586 goto err;
587 EVP_KEYMGMT_free(rctx->keymgmt);
588 rctx->keymgmt = tmp_keymgmt;
589 return rctx;
590 }
591 } else if (pctx->pmeth->copy(rctx, pctx) > 0) {
592 return rctx;
593 }
594err:
595 rctx->pmeth = NULL;
596 EVP_PKEY_CTX_free(rctx);
597 return NULL;
598}
599
600int EVP_PKEY_meth_add0(const EVP_PKEY_METHOD *pmeth)
601{
602 if (app_pkey_methods == NULL) {
603 app_pkey_methods = sk_EVP_PKEY_METHOD_new(pmeth_cmp);
604 if (app_pkey_methods == NULL) {
605 ERR_raise(ERR_LIB_EVP, ERR_R_CRYPTO_LIB);
606 return 0;
607 }
608 }
609 if (!sk_EVP_PKEY_METHOD_push(app_pkey_methods, pmeth)) {
610 ERR_raise(ERR_LIB_EVP, ERR_R_CRYPTO_LIB);
611 return 0;
612 }
613 sk_EVP_PKEY_METHOD_sort(app_pkey_methods);
614 return 1;
615}
616
617void evp_app_cleanup_int(void)
618{
619 if (app_pkey_methods != NULL)
620 sk_EVP_PKEY_METHOD_pop_free(app_pkey_methods, EVP_PKEY_meth_free);
621}
622
623int EVP_PKEY_meth_remove(const EVP_PKEY_METHOD *pmeth)
624{
625 const EVP_PKEY_METHOD *ret;
626
627 ret = sk_EVP_PKEY_METHOD_delete_ptr(app_pkey_methods, pmeth);
628
629 return ret == NULL ? 0 : 1;
630}
631
632size_t EVP_PKEY_meth_get_count(void)
633{
634 size_t rv = OSSL_NELEM(standard_methods);
635
636 if (app_pkey_methods)
637 rv += sk_EVP_PKEY_METHOD_num(app_pkey_methods);
638 return rv;
639}
640
641const EVP_PKEY_METHOD *EVP_PKEY_meth_get0(size_t idx)
642{
643 if (idx < OSSL_NELEM(standard_methods))
644 return (standard_methods[idx])();
645 if (app_pkey_methods == NULL)
646 return NULL;
647 idx -= OSSL_NELEM(standard_methods);
648 if (idx >= (size_t)sk_EVP_PKEY_METHOD_num(app_pkey_methods))
649 return NULL;
650 return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx);
651}
652#endif
653
654int EVP_PKEY_CTX_is_a(EVP_PKEY_CTX *ctx, const char *keytype)
655{
656#ifndef FIPS_MODULE
657 if (evp_pkey_ctx_is_legacy(ctx))
658 return (ctx->pmeth->pkey_id == evp_pkey_name2type(keytype));
659#endif
660 return EVP_KEYMGMT_is_a(ctx->keymgmt, keytype);
661}
662
663int EVP_PKEY_CTX_set_params(EVP_PKEY_CTX *ctx, const OSSL_PARAM *params)
664{
665 switch (evp_pkey_ctx_state(ctx)) {
666 case EVP_PKEY_STATE_PROVIDER:
667 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
668 && ctx->op.kex.exchange != NULL
669 && ctx->op.kex.exchange->set_ctx_params != NULL)
670 return
671 ctx->op.kex.exchange->set_ctx_params(ctx->op.kex.algctx,
672 params);
673 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
674 && ctx->op.sig.signature != NULL
675 && ctx->op.sig.signature->set_ctx_params != NULL)
676 return
677 ctx->op.sig.signature->set_ctx_params(ctx->op.sig.algctx,
678 params);
679 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
680 && ctx->op.ciph.cipher != NULL
681 && ctx->op.ciph.cipher->set_ctx_params != NULL)
682 return
683 ctx->op.ciph.cipher->set_ctx_params(ctx->op.ciph.algctx,
684 params);
685 if (EVP_PKEY_CTX_IS_GEN_OP(ctx)
686 && ctx->keymgmt != NULL
687 && ctx->keymgmt->gen_set_params != NULL)
688 return
689 evp_keymgmt_gen_set_params(ctx->keymgmt, ctx->op.keymgmt.genctx,
690 params);
691 if (EVP_PKEY_CTX_IS_KEM_OP(ctx)
692 && ctx->op.encap.kem != NULL
693 && ctx->op.encap.kem->set_ctx_params != NULL)
694 return
695 ctx->op.encap.kem->set_ctx_params(ctx->op.encap.algctx,
696 params);
697 break;
698#ifndef FIPS_MODULE
699 case EVP_PKEY_STATE_UNKNOWN:
700 case EVP_PKEY_STATE_LEGACY:
701 return evp_pkey_ctx_set_params_to_ctrl(ctx, params);
702#endif
703 }
704 return 0;
705}
706
707int EVP_PKEY_CTX_get_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
708{
709 switch (evp_pkey_ctx_state(ctx)) {
710 case EVP_PKEY_STATE_PROVIDER:
711 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
712 && ctx->op.kex.exchange != NULL
713 && ctx->op.kex.exchange->get_ctx_params != NULL)
714 return
715 ctx->op.kex.exchange->get_ctx_params(ctx->op.kex.algctx,
716 params);
717 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
718 && ctx->op.sig.signature != NULL
719 && ctx->op.sig.signature->get_ctx_params != NULL)
720 return
721 ctx->op.sig.signature->get_ctx_params(ctx->op.sig.algctx,
722 params);
723 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
724 && ctx->op.ciph.cipher != NULL
725 && ctx->op.ciph.cipher->get_ctx_params != NULL)
726 return
727 ctx->op.ciph.cipher->get_ctx_params(ctx->op.ciph.algctx,
728 params);
729 if (EVP_PKEY_CTX_IS_KEM_OP(ctx)
730 && ctx->op.encap.kem != NULL
731 && ctx->op.encap.kem->get_ctx_params != NULL)
732 return
733 ctx->op.encap.kem->get_ctx_params(ctx->op.encap.algctx,
734 params);
735 break;
736#ifndef FIPS_MODULE
737 case EVP_PKEY_STATE_UNKNOWN:
738 case EVP_PKEY_STATE_LEGACY:
739 return evp_pkey_ctx_get_params_to_ctrl(ctx, params);
740#endif
741 }
742 return 0;
743}
744
745#ifndef FIPS_MODULE
746const OSSL_PARAM *EVP_PKEY_CTX_gettable_params(const EVP_PKEY_CTX *ctx)
747{
748 void *provctx;
749
750 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
751 && ctx->op.kex.exchange != NULL
752 && ctx->op.kex.exchange->gettable_ctx_params != NULL) {
753 provctx = ossl_provider_ctx(EVP_KEYEXCH_get0_provider(ctx->op.kex.exchange));
754 return ctx->op.kex.exchange->gettable_ctx_params(ctx->op.kex.algctx,
755 provctx);
756 }
757 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
758 && ctx->op.sig.signature != NULL
759 && ctx->op.sig.signature->gettable_ctx_params != NULL) {
760 provctx = ossl_provider_ctx(
761 EVP_SIGNATURE_get0_provider(ctx->op.sig.signature));
762 return ctx->op.sig.signature->gettable_ctx_params(ctx->op.sig.algctx,
763 provctx);
764 }
765 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
766 && ctx->op.ciph.cipher != NULL
767 && ctx->op.ciph.cipher->gettable_ctx_params != NULL) {
768 provctx = ossl_provider_ctx(
769 EVP_ASYM_CIPHER_get0_provider(ctx->op.ciph.cipher));
770 return ctx->op.ciph.cipher->gettable_ctx_params(ctx->op.ciph.algctx,
771 provctx);
772 }
773 if (EVP_PKEY_CTX_IS_KEM_OP(ctx)
774 && ctx->op.encap.kem != NULL
775 && ctx->op.encap.kem->gettable_ctx_params != NULL) {
776 provctx = ossl_provider_ctx(EVP_KEM_get0_provider(ctx->op.encap.kem));
777 return ctx->op.encap.kem->gettable_ctx_params(ctx->op.encap.algctx,
778 provctx);
779 }
780 return NULL;
781}
782
783const OSSL_PARAM *EVP_PKEY_CTX_settable_params(const EVP_PKEY_CTX *ctx)
784{
785 void *provctx;
786
787 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
788 && ctx->op.kex.exchange != NULL
789 && ctx->op.kex.exchange->settable_ctx_params != NULL) {
790 provctx = ossl_provider_ctx(EVP_KEYEXCH_get0_provider(ctx->op.kex.exchange));
791 return ctx->op.kex.exchange->settable_ctx_params(ctx->op.kex.algctx,
792 provctx);
793 }
794 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
795 && ctx->op.sig.signature != NULL
796 && ctx->op.sig.signature->settable_ctx_params != NULL) {
797 provctx = ossl_provider_ctx(
798 EVP_SIGNATURE_get0_provider(ctx->op.sig.signature));
799 return ctx->op.sig.signature->settable_ctx_params(ctx->op.sig.algctx,
800 provctx);
801 }
802 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
803 && ctx->op.ciph.cipher != NULL
804 && ctx->op.ciph.cipher->settable_ctx_params != NULL) {
805 provctx = ossl_provider_ctx(
806 EVP_ASYM_CIPHER_get0_provider(ctx->op.ciph.cipher));
807 return ctx->op.ciph.cipher->settable_ctx_params(ctx->op.ciph.algctx,
808 provctx);
809 }
810 if (EVP_PKEY_CTX_IS_GEN_OP(ctx)
811 && ctx->keymgmt != NULL
812 && ctx->keymgmt->gen_settable_params != NULL) {
813 provctx = ossl_provider_ctx(EVP_KEYMGMT_get0_provider(ctx->keymgmt));
814 return ctx->keymgmt->gen_settable_params(ctx->op.keymgmt.genctx,
815 provctx);
816 }
817 if (EVP_PKEY_CTX_IS_KEM_OP(ctx)
818 && ctx->op.encap.kem != NULL
819 && ctx->op.encap.kem->settable_ctx_params != NULL) {
820 provctx = ossl_provider_ctx(EVP_KEM_get0_provider(ctx->op.encap.kem));
821 return ctx->op.encap.kem->settable_ctx_params(ctx->op.encap.algctx,
822 provctx);
823 }
824 return NULL;
825}
826
827/*
828 * Internal helpers for stricter EVP_PKEY_CTX_{set,get}_params().
829 *
830 * Return 1 on success, 0 or negative for errors.
831 *
832 * In particular they return -2 if any of the params is not supported.
833 *
834 * They are not available in FIPS_MODULE as they depend on
835 * - EVP_PKEY_CTX_{get,set}_params()
836 * - EVP_PKEY_CTX_{gettable,settable}_params()
837 *
838 */
839int evp_pkey_ctx_set_params_strict(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
840{
841 if (ctx == NULL || params == NULL)
842 return 0;
843
844 /*
845 * We only check for provider side EVP_PKEY_CTX. For #legacy, we
846 * depend on the translation that happens in EVP_PKEY_CTX_set_params()
847 * call, and that the resulting ctrl call will return -2 if it doesn't
848 * known the ctrl command number.
849 */
850 if (evp_pkey_ctx_is_provided(ctx)) {
851 const OSSL_PARAM *settable = EVP_PKEY_CTX_settable_params(ctx);
852 const OSSL_PARAM *p;
853
854 for (p = params; p->key != NULL; p++) {
855 /* Check the ctx actually understands this parameter */
856 if (OSSL_PARAM_locate_const(settable, p->key) == NULL)
857 return -2;
858 }
859 }
860
861 return EVP_PKEY_CTX_set_params(ctx, params);
862}
863
864int evp_pkey_ctx_get_params_strict(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
865{
866 if (ctx == NULL || params == NULL)
867 return 0;
868
869 /*
870 * We only check for provider side EVP_PKEY_CTX. For #legacy, we
871 * depend on the translation that happens in EVP_PKEY_CTX_get_params()
872 * call, and that the resulting ctrl call will return -2 if it doesn't
873 * known the ctrl command number.
874 */
875 if (evp_pkey_ctx_is_provided(ctx)) {
876 const OSSL_PARAM *gettable = EVP_PKEY_CTX_gettable_params(ctx);
877 const OSSL_PARAM *p;
878
879 for (p = params; p->key != NULL; p++) {
880 /* Check the ctx actually understands this parameter */
881 if (OSSL_PARAM_locate_const(gettable, p->key) == NULL)
882 return -2;
883 }
884 }
885
886 return EVP_PKEY_CTX_get_params(ctx, params);
887}
888
889int EVP_PKEY_CTX_get_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD **md)
890{
891 OSSL_PARAM sig_md_params[2], *p = sig_md_params;
892 /* 80 should be big enough */
893 char name[80] = "";
894 const EVP_MD *tmp;
895
896 if (ctx == NULL || !EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
897 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
898 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
899 return -2;
900 }
901
902 if (ctx->op.sig.algctx == NULL)
903 return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG,
904 EVP_PKEY_CTRL_GET_MD, 0, (void *)(md));
905
906 *p++ = OSSL_PARAM_construct_utf8_string(OSSL_SIGNATURE_PARAM_DIGEST,
907 name,
908 sizeof(name));
909 *p = OSSL_PARAM_construct_end();
910
911 if (!EVP_PKEY_CTX_get_params(ctx, sig_md_params))
912 return 0;
913
914 tmp = evp_get_digestbyname_ex(ctx->libctx, name);
915 if (tmp == NULL)
916 return 0;
917
918 *md = tmp;
919
920 return 1;
921}
922
923static int evp_pkey_ctx_set_md(EVP_PKEY_CTX *ctx, const EVP_MD *md,
924 int fallback, const char *param, int op,
925 int ctrl)
926{
927 OSSL_PARAM md_params[2], *p = md_params;
928 const char *name;
929
930 if (ctx == NULL || (ctx->operation & op) == 0) {
931 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
932 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
933 return -2;
934 }
935
936 if (fallback)
937 return EVP_PKEY_CTX_ctrl(ctx, -1, op, ctrl, 0, (void *)(md));
938
939 if (md == NULL) {
940 name = "";
941 } else {
942 name = EVP_MD_get0_name(md);
943 }
944
945 *p++ = OSSL_PARAM_construct_utf8_string(param,
946 /*
947 * Cast away the const. This is read
948 * only so should be safe
949 */
950 (char *)name, 0);
951 *p = OSSL_PARAM_construct_end();
952
953 return EVP_PKEY_CTX_set_params(ctx, md_params);
954}
955
956int EVP_PKEY_CTX_set_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD *md)
957{
958 return evp_pkey_ctx_set_md(ctx, md, ctx->op.sig.algctx == NULL,
959 OSSL_SIGNATURE_PARAM_DIGEST,
960 EVP_PKEY_OP_TYPE_SIG, EVP_PKEY_CTRL_MD);
961}
962
963int EVP_PKEY_CTX_set_tls1_prf_md(EVP_PKEY_CTX *ctx, const EVP_MD *md)
964{
965 return evp_pkey_ctx_set_md(ctx, md, ctx->op.kex.algctx == NULL,
966 OSSL_KDF_PARAM_DIGEST,
967 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_TLS_MD);
968}
969
970static int evp_pkey_ctx_set1_octet_string(EVP_PKEY_CTX *ctx, int fallback,
971 const char *param, int op, int ctrl,
972 const unsigned char *data,
973 int datalen)
974{
975 OSSL_PARAM octet_string_params[2], *p = octet_string_params;
976
977 if (ctx == NULL || (ctx->operation & op) == 0) {
978 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
979 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
980 return -2;
981 }
982
983 /* Code below to be removed when legacy support is dropped. */
984 if (fallback)
985 return EVP_PKEY_CTX_ctrl(ctx, -1, op, ctrl, datalen, (void *)(data));
986 /* end of legacy support */
987
988 if (datalen < 0) {
989 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_LENGTH);
990 return 0;
991 }
992
993 *p++ = OSSL_PARAM_construct_octet_string(param,
994 /*
995 * Cast away the const. This is read
996 * only so should be safe
997 */
998 (unsigned char *)data,
999 (size_t)datalen);
1000 *p = OSSL_PARAM_construct_end();
1001
1002 return EVP_PKEY_CTX_set_params(ctx, octet_string_params);
1003}
1004
1005static int evp_pkey_ctx_add1_octet_string(EVP_PKEY_CTX *ctx, int fallback,
1006 const char *param, int op, int ctrl,
1007 const unsigned char *data,
1008 int datalen)
1009{
1010 OSSL_PARAM os_params[2];
1011 const OSSL_PARAM *gettables;
1012 unsigned char *info = NULL;
1013 size_t info_len = 0;
1014 size_t info_alloc = 0;
1015 int ret = 0;
1016
1017 if (ctx == NULL || (ctx->operation & op) == 0) {
1018 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1019 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
1020 return -2;
1021 }
1022
1023 /* Code below to be removed when legacy support is dropped. */
1024 if (fallback)
1025 return EVP_PKEY_CTX_ctrl(ctx, -1, op, ctrl, datalen, (void *)(data));
1026 /* end of legacy support */
1027
1028 if (datalen < 0) {
1029 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_LENGTH);
1030 return 0;
1031 } else if (datalen == 0) {
1032 return 1;
1033 }
1034
1035 /* Check for older provider that doesn't support getting this parameter */
1036 gettables = EVP_PKEY_CTX_gettable_params(ctx);
1037 if (gettables == NULL || OSSL_PARAM_locate_const(gettables, param) == NULL)
1038 return evp_pkey_ctx_set1_octet_string(ctx, fallback, param, op, ctrl,
1039 data, datalen);
1040
1041 /* Get the original value length */
1042 os_params[0] = OSSL_PARAM_construct_octet_string(param, NULL, 0);
1043 os_params[1] = OSSL_PARAM_construct_end();
1044
1045 if (!EVP_PKEY_CTX_get_params(ctx, os_params))
1046 return 0;
1047
1048 /* This should not happen but check to be sure. */
1049 if (os_params[0].return_size == OSSL_PARAM_UNMODIFIED)
1050 return 0;
1051
1052 info_alloc = os_params[0].return_size + datalen;
1053 if (info_alloc == 0)
1054 return 0;
1055 info = OPENSSL_zalloc(info_alloc);
1056 if (info == NULL)
1057 return 0;
1058 info_len = os_params[0].return_size;
1059
1060 os_params[0] = OSSL_PARAM_construct_octet_string(param, info, info_alloc);
1061
1062 /* if we have data, then go get it */
1063 if (info_len > 0) {
1064 if (!EVP_PKEY_CTX_get_params(ctx, os_params))
1065 goto error;
1066 }
1067
1068 /* Copy the input data */
1069 memcpy(&info[info_len], data, datalen);
1070 ret = EVP_PKEY_CTX_set_params(ctx, os_params);
1071
1072 error:
1073 OPENSSL_clear_free(info, info_alloc);
1074 return ret;
1075}
1076
1077int EVP_PKEY_CTX_set1_tls1_prf_secret(EVP_PKEY_CTX *ctx,
1078 const unsigned char *sec, int seclen)
1079{
1080 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
1081 OSSL_KDF_PARAM_SECRET,
1082 EVP_PKEY_OP_DERIVE,
1083 EVP_PKEY_CTRL_TLS_SECRET,
1084 sec, seclen);
1085}
1086
1087int EVP_PKEY_CTX_add1_tls1_prf_seed(EVP_PKEY_CTX *ctx,
1088 const unsigned char *seed, int seedlen)
1089{
1090 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
1091 OSSL_KDF_PARAM_SEED,
1092 EVP_PKEY_OP_DERIVE,
1093 EVP_PKEY_CTRL_TLS_SEED,
1094 seed, seedlen);
1095}
1096
1097int EVP_PKEY_CTX_set_hkdf_md(EVP_PKEY_CTX *ctx, const EVP_MD *md)
1098{
1099 return evp_pkey_ctx_set_md(ctx, md, ctx->op.kex.algctx == NULL,
1100 OSSL_KDF_PARAM_DIGEST,
1101 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_HKDF_MD);
1102}
1103
1104int EVP_PKEY_CTX_set1_hkdf_salt(EVP_PKEY_CTX *ctx,
1105 const unsigned char *salt, int saltlen)
1106{
1107 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
1108 OSSL_KDF_PARAM_SALT,
1109 EVP_PKEY_OP_DERIVE,
1110 EVP_PKEY_CTRL_HKDF_SALT,
1111 salt, saltlen);
1112}
1113
1114int EVP_PKEY_CTX_set1_hkdf_key(EVP_PKEY_CTX *ctx,
1115 const unsigned char *key, int keylen)
1116{
1117 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
1118 OSSL_KDF_PARAM_KEY,
1119 EVP_PKEY_OP_DERIVE,
1120 EVP_PKEY_CTRL_HKDF_KEY,
1121 key, keylen);
1122}
1123
1124int EVP_PKEY_CTX_add1_hkdf_info(EVP_PKEY_CTX *ctx,
1125 const unsigned char *info, int infolen)
1126{
1127 return evp_pkey_ctx_add1_octet_string(ctx, ctx->op.kex.algctx == NULL,
1128 OSSL_KDF_PARAM_INFO,
1129 EVP_PKEY_OP_DERIVE,
1130 EVP_PKEY_CTRL_HKDF_INFO,
1131 info, infolen);
1132}
1133
1134int EVP_PKEY_CTX_set_hkdf_mode(EVP_PKEY_CTX *ctx, int mode)
1135{
1136 OSSL_PARAM int_params[2], *p = int_params;
1137
1138 if (ctx == NULL || !EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
1139 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1140 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
1141 return -2;
1142 }
1143
1144 /* Code below to be removed when legacy support is dropped. */
1145 if (ctx->op.kex.algctx == NULL)
1146 return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_DERIVE,
1147 EVP_PKEY_CTRL_HKDF_MODE, mode, NULL);
1148 /* end of legacy support */
1149
1150 if (mode < 0) {
1151 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_VALUE);
1152 return 0;
1153 }
1154
1155 *p++ = OSSL_PARAM_construct_int(OSSL_KDF_PARAM_MODE, &mode);
1156 *p = OSSL_PARAM_construct_end();
1157
1158 return EVP_PKEY_CTX_set_params(ctx, int_params);
1159}
1160
1161int EVP_PKEY_CTX_set1_pbe_pass(EVP_PKEY_CTX *ctx, const char *pass,
1162 int passlen)
1163{
1164 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
1165 OSSL_KDF_PARAM_PASSWORD,
1166 EVP_PKEY_OP_DERIVE,
1167 EVP_PKEY_CTRL_PASS,
1168 (const unsigned char *)pass, passlen);
1169}
1170
1171int EVP_PKEY_CTX_set1_scrypt_salt(EVP_PKEY_CTX *ctx,
1172 const unsigned char *salt, int saltlen)
1173{
1174 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
1175 OSSL_KDF_PARAM_SALT,
1176 EVP_PKEY_OP_DERIVE,
1177 EVP_PKEY_CTRL_SCRYPT_SALT,
1178 salt, saltlen);
1179}
1180
1181static int evp_pkey_ctx_set_uint64(EVP_PKEY_CTX *ctx, const char *param,
1182 int op, int ctrl, uint64_t val)
1183{
1184 OSSL_PARAM uint64_params[2], *p = uint64_params;
1185
1186 if (ctx == NULL || !EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
1187 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1188 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
1189 return -2;
1190 }
1191
1192 /* Code below to be removed when legacy support is dropped. */
1193 if (ctx->op.kex.algctx == NULL)
1194 return EVP_PKEY_CTX_ctrl_uint64(ctx, -1, op, ctrl, val);
1195 /* end of legacy support */
1196
1197 *p++ = OSSL_PARAM_construct_uint64(param, &val);
1198 *p = OSSL_PARAM_construct_end();
1199
1200 return EVP_PKEY_CTX_set_params(ctx, uint64_params);
1201}
1202
1203int EVP_PKEY_CTX_set_scrypt_N(EVP_PKEY_CTX *ctx, uint64_t n)
1204{
1205 return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_N,
1206 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_SCRYPT_N,
1207 n);
1208}
1209
1210int EVP_PKEY_CTX_set_scrypt_r(EVP_PKEY_CTX *ctx, uint64_t r)
1211{
1212 return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_R,
1213 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_SCRYPT_R,
1214 r);
1215}
1216
1217int EVP_PKEY_CTX_set_scrypt_p(EVP_PKEY_CTX *ctx, uint64_t p)
1218{
1219 return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_P,
1220 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_SCRYPT_P,
1221 p);
1222}
1223
1224int EVP_PKEY_CTX_set_scrypt_maxmem_bytes(EVP_PKEY_CTX *ctx,
1225 uint64_t maxmem_bytes)
1226{
1227 return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_MAXMEM,
1228 EVP_PKEY_OP_DERIVE,
1229 EVP_PKEY_CTRL_SCRYPT_MAXMEM_BYTES,
1230 maxmem_bytes);
1231}
1232
1233int EVP_PKEY_CTX_set_mac_key(EVP_PKEY_CTX *ctx, const unsigned char *key,
1234 int keylen)
1235{
1236 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.keymgmt.genctx == NULL,
1237 OSSL_PKEY_PARAM_PRIV_KEY,
1238 EVP_PKEY_OP_KEYGEN,
1239 EVP_PKEY_CTRL_SET_MAC_KEY,
1240 key, keylen);
1241}
1242
1243int EVP_PKEY_CTX_set_kem_op(EVP_PKEY_CTX *ctx, const char *op)
1244{
1245 OSSL_PARAM params[2], *p = params;
1246
1247 if (ctx == NULL || op == NULL) {
1248 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_VALUE);
1249 return 0;
1250 }
1251 if (!EVP_PKEY_CTX_IS_KEM_OP(ctx)) {
1252 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1253 return -2;
1254 }
1255 *p++ = OSSL_PARAM_construct_utf8_string(OSSL_KEM_PARAM_OPERATION,
1256 (char *)op, 0);
1257 *p = OSSL_PARAM_construct_end();
1258 return EVP_PKEY_CTX_set_params(ctx, params);
1259}
1260
1261int EVP_PKEY_CTX_set1_id(EVP_PKEY_CTX *ctx, const void *id, int len)
1262{
1263 return EVP_PKEY_CTX_ctrl(ctx, -1, -1,
1264 EVP_PKEY_CTRL_SET1_ID, (int)len, (void*)(id));
1265}
1266
1267int EVP_PKEY_CTX_get1_id(EVP_PKEY_CTX *ctx, void *id)
1268{
1269 return EVP_PKEY_CTX_ctrl(ctx, -1, -1, EVP_PKEY_CTRL_GET1_ID, 0, (void*)id);
1270}
1271
1272int EVP_PKEY_CTX_get1_id_len(EVP_PKEY_CTX *ctx, size_t *id_len)
1273{
1274 return EVP_PKEY_CTX_ctrl(ctx, -1, -1,
1275 EVP_PKEY_CTRL_GET1_ID_LEN, 0, (void*)id_len);
1276}
1277
1278static int evp_pkey_ctx_ctrl_int(EVP_PKEY_CTX *ctx, int keytype, int optype,
1279 int cmd, int p1, void *p2)
1280{
1281 int ret = 0;
1282
1283 /*
1284 * If the method has a |digest_custom| function, we can relax the
1285 * operation type check, since this can be called before the operation
1286 * is initialized.
1287 */
1288 if (ctx->pmeth == NULL || ctx->pmeth->digest_custom == NULL) {
1289 if (ctx->operation == EVP_PKEY_OP_UNDEFINED) {
1290 ERR_raise(ERR_LIB_EVP, EVP_R_NO_OPERATION_SET);
1291 return -1;
1292 }
1293
1294 if ((optype != -1) && !(ctx->operation & optype)) {
1295 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION);
1296 return -1;
1297 }
1298 }
1299
1300 switch (evp_pkey_ctx_state(ctx)) {
1301 case EVP_PKEY_STATE_PROVIDER:
1302 return evp_pkey_ctx_ctrl_to_param(ctx, keytype, optype, cmd, p1, p2);
1303 case EVP_PKEY_STATE_UNKNOWN:
1304 case EVP_PKEY_STATE_LEGACY:
1305 if (ctx->pmeth == NULL || ctx->pmeth->ctrl == NULL) {
1306 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1307 return -2;
1308 }
1309 if ((keytype != -1) && (ctx->pmeth->pkey_id != keytype))
1310 return -1;
1311
1312 ret = ctx->pmeth->ctrl(ctx, cmd, p1, p2);
1313
1314 if (ret == -2)
1315 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1316 break;
1317 }
1318 return ret;
1319}
1320
1321int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype,
1322 int cmd, int p1, void *p2)
1323{
1324 int ret = 0;
1325
1326 if (ctx == NULL) {
1327 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1328 return -2;
1329 }
1330 /* If unsupported, we don't want that reported here */
1331 ERR_set_mark();
1332 ret = evp_pkey_ctx_store_cached_data(ctx, keytype, optype,
1333 cmd, NULL, p2, p1);
1334 if (ret == -2) {
1335 ERR_pop_to_mark();
1336 } else {
1337 ERR_clear_last_mark();
1338 /*
1339 * If there was an error, there was an error.
1340 * If the operation isn't initialized yet, we also return, as
1341 * the saved values will be used then anyway.
1342 */
1343 if (ret < 1 || ctx->operation == EVP_PKEY_OP_UNDEFINED)
1344 return ret;
1345 }
1346 return evp_pkey_ctx_ctrl_int(ctx, keytype, optype, cmd, p1, p2);
1347}
1348
1349int EVP_PKEY_CTX_ctrl_uint64(EVP_PKEY_CTX *ctx, int keytype, int optype,
1350 int cmd, uint64_t value)
1351{
1352 return EVP_PKEY_CTX_ctrl(ctx, keytype, optype, cmd, 0, &value);
1353}
1354
1355
1356static int evp_pkey_ctx_ctrl_str_int(EVP_PKEY_CTX *ctx,
1357 const char *name, const char *value)
1358{
1359 int ret = 0;
1360
1361 if (ctx == NULL) {
1362 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1363 return -2;
1364 }
1365
1366 switch (evp_pkey_ctx_state(ctx)) {
1367 case EVP_PKEY_STATE_PROVIDER:
1368 return evp_pkey_ctx_ctrl_str_to_param(ctx, name, value);
1369 case EVP_PKEY_STATE_UNKNOWN:
1370 case EVP_PKEY_STATE_LEGACY:
1371 if (ctx == NULL || ctx->pmeth == NULL || ctx->pmeth->ctrl_str == NULL) {
1372 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1373 return -2;
1374 }
1375 if (strcmp(name, "digest") == 0)
1376 ret = EVP_PKEY_CTX_md(ctx,
1377 EVP_PKEY_OP_TYPE_SIG | EVP_PKEY_OP_TYPE_CRYPT,
1378 EVP_PKEY_CTRL_MD, value);
1379 else
1380 ret = ctx->pmeth->ctrl_str(ctx, name, value);
1381 break;
1382 }
1383
1384 return ret;
1385}
1386
1387int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX *ctx,
1388 const char *name, const char *value)
1389{
1390 int ret = 0;
1391
1392 /* If unsupported, we don't want that reported here */
1393 ERR_set_mark();
1394 ret = evp_pkey_ctx_store_cached_data(ctx, -1, -1, -1,
1395 name, value, strlen(value) + 1);
1396 if (ret == -2) {
1397 ERR_pop_to_mark();
1398 } else {
1399 ERR_clear_last_mark();
1400 /*
1401 * If there was an error, there was an error.
1402 * If the operation isn't initialized yet, we also return, as
1403 * the saved values will be used then anyway.
1404 */
1405 if (ret < 1 || ctx->operation == EVP_PKEY_OP_UNDEFINED)
1406 return ret;
1407 }
1408
1409 return evp_pkey_ctx_ctrl_str_int(ctx, name, value);
1410}
1411
1412static int decode_cmd(int cmd, const char *name)
1413{
1414 if (cmd == -1) {
1415 /*
1416 * The consequence of the assertion not being true is that this
1417 * function will return -1, which will cause the calling functions
1418 * to signal that the command is unsupported... in non-debug mode.
1419 */
1420 if (ossl_assert(name != NULL))
1421 if (strcmp(name, "distid") == 0 || strcmp(name, "hexdistid") == 0)
1422 cmd = EVP_PKEY_CTRL_SET1_ID;
1423 }
1424
1425 return cmd;
1426}
1427
1428static int evp_pkey_ctx_store_cached_data(EVP_PKEY_CTX *ctx,
1429 int keytype, int optype,
1430 int cmd, const char *name,
1431 const void *data, size_t data_len)
1432{
1433 /*
1434 * Check that it's one of the supported commands. The ctrl commands
1435 * number cases here must correspond to the cases in the bottom switch
1436 * in this function.
1437 */
1438 switch (cmd = decode_cmd(cmd, name)) {
1439 case EVP_PKEY_CTRL_SET1_ID:
1440 break;
1441 default:
1442 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1443 return -2;
1444 }
1445
1446 if (keytype != -1) {
1447 switch (evp_pkey_ctx_state(ctx)) {
1448 case EVP_PKEY_STATE_PROVIDER:
1449 if (ctx->keymgmt == NULL) {
1450 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1451 return -2;
1452 }
1453 if (!EVP_KEYMGMT_is_a(ctx->keymgmt,
1454 evp_pkey_type2name(keytype))) {
1455 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION);
1456 return -1;
1457 }
1458 break;
1459 case EVP_PKEY_STATE_UNKNOWN:
1460 case EVP_PKEY_STATE_LEGACY:
1461 if (ctx->pmeth == NULL) {
1462 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1463 return -2;
1464 }
1465 if (EVP_PKEY_type(ctx->pmeth->pkey_id) != EVP_PKEY_type(keytype)) {
1466 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION);
1467 return -1;
1468 }
1469 break;
1470 }
1471 }
1472 if (optype != -1 && (ctx->operation & optype) == 0) {
1473 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION);
1474 return -1;
1475 }
1476
1477 switch (cmd) {
1478 case EVP_PKEY_CTRL_SET1_ID:
1479 evp_pkey_ctx_free_cached_data(ctx, cmd, name);
1480 if (name != NULL) {
1481 ctx->cached_parameters.dist_id_name = OPENSSL_strdup(name);
1482 if (ctx->cached_parameters.dist_id_name == NULL)
1483 return 0;
1484 }
1485 if (data_len > 0) {
1486 ctx->cached_parameters.dist_id = OPENSSL_memdup(data, data_len);
1487 if (ctx->cached_parameters.dist_id == NULL)
1488 return 0;
1489 }
1490 ctx->cached_parameters.dist_id_set = 1;
1491 ctx->cached_parameters.dist_id_len = data_len;
1492 break;
1493 }
1494 return 1;
1495}
1496
1497static void evp_pkey_ctx_free_cached_data(EVP_PKEY_CTX *ctx,
1498 int cmd, const char *name)
1499{
1500 cmd = decode_cmd(cmd, name);
1501 switch (cmd) {
1502 case EVP_PKEY_CTRL_SET1_ID:
1503 OPENSSL_free(ctx->cached_parameters.dist_id);
1504 OPENSSL_free(ctx->cached_parameters.dist_id_name);
1505 ctx->cached_parameters.dist_id = NULL;
1506 ctx->cached_parameters.dist_id_name = NULL;
1507 break;
1508 }
1509}
1510
1511static void evp_pkey_ctx_free_all_cached_data(EVP_PKEY_CTX *ctx)
1512{
1513 evp_pkey_ctx_free_cached_data(ctx, EVP_PKEY_CTRL_SET1_ID, NULL);
1514}
1515
1516int evp_pkey_ctx_use_cached_data(EVP_PKEY_CTX *ctx)
1517{
1518 int ret = 1;
1519
1520 if (ret && ctx->cached_parameters.dist_id_set) {
1521 const char *name = ctx->cached_parameters.dist_id_name;
1522 const void *val = ctx->cached_parameters.dist_id;
1523 size_t len = ctx->cached_parameters.dist_id_len;
1524
1525 if (name != NULL)
1526 ret = evp_pkey_ctx_ctrl_str_int(ctx, name, val);
1527 else
1528 ret = evp_pkey_ctx_ctrl_int(ctx, -1, ctx->operation,
1529 EVP_PKEY_CTRL_SET1_ID,
1530 (int)len, (void *)val);
1531 }
1532
1533 return ret;
1534}
1535
1536OSSL_LIB_CTX *EVP_PKEY_CTX_get0_libctx(EVP_PKEY_CTX *ctx)
1537{
1538 return ctx->libctx;
1539}
1540
1541const char *EVP_PKEY_CTX_get0_propq(const EVP_PKEY_CTX *ctx)
1542{
1543 return ctx->propquery;
1544}
1545
1546const OSSL_PROVIDER *EVP_PKEY_CTX_get0_provider(const EVP_PKEY_CTX *ctx)
1547{
1548 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
1549 if (ctx->op.sig.signature != NULL)
1550 return EVP_SIGNATURE_get0_provider(ctx->op.sig.signature);
1551 } else if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
1552 if (ctx->op.kex.exchange != NULL)
1553 return EVP_KEYEXCH_get0_provider(ctx->op.kex.exchange);
1554 } else if (EVP_PKEY_CTX_IS_KEM_OP(ctx)) {
1555 if (ctx->op.encap.kem != NULL)
1556 return EVP_KEM_get0_provider(ctx->op.encap.kem);
1557 } else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)) {
1558 if (ctx->op.ciph.cipher != NULL)
1559 return EVP_ASYM_CIPHER_get0_provider(ctx->op.ciph.cipher);
1560 } else if (EVP_PKEY_CTX_IS_GEN_OP(ctx)) {
1561 if (ctx->keymgmt != NULL)
1562 return EVP_KEYMGMT_get0_provider(ctx->keymgmt);
1563 }
1564
1565 return NULL;
1566}
1567
1568/* Utility functions to send a string of hex string to a ctrl */
1569
1570int EVP_PKEY_CTX_str2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *str)
1571{
1572 size_t len;
1573
1574 len = strlen(str);
1575 if (len > INT_MAX)
1576 return -1;
1577 return ctx->pmeth->ctrl(ctx, cmd, len, (void *)str);
1578}
1579
1580int EVP_PKEY_CTX_hex2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *hex)
1581{
1582 unsigned char *bin;
1583 long binlen;
1584 int rv = -1;
1585
1586 bin = OPENSSL_hexstr2buf(hex, &binlen);
1587 if (bin == NULL)
1588 return 0;
1589 if (binlen <= INT_MAX)
1590 rv = ctx->pmeth->ctrl(ctx, cmd, binlen, bin);
1591 OPENSSL_free(bin);
1592 return rv;
1593}
1594
1595/* Pass a message digest to a ctrl */
1596int EVP_PKEY_CTX_md(EVP_PKEY_CTX *ctx, int optype, int cmd, const char *md)
1597{
1598 const EVP_MD *m;
1599
1600 if (md == NULL || (m = EVP_get_digestbyname(md)) == NULL) {
1601 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_DIGEST);
1602 return 0;
1603 }
1604 return EVP_PKEY_CTX_ctrl(ctx, -1, optype, cmd, 0, (void *)m);
1605}
1606
1607int EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX *ctx)
1608{
1609 return ctx->operation;
1610}
1611
1612void EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX *ctx, int *dat, int datlen)
1613{
1614 ctx->keygen_info = dat;
1615 ctx->keygen_info_count = datlen;
1616}
1617
1618void EVP_PKEY_CTX_set_data(EVP_PKEY_CTX *ctx, void *data)
1619{
1620 ctx->data = data;
1621}
1622
1623void *EVP_PKEY_CTX_get_data(const EVP_PKEY_CTX *ctx)
1624{
1625 return ctx->data;
1626}
1627
1628EVP_PKEY *EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX *ctx)
1629{
1630 return ctx->pkey;
1631}
1632
1633EVP_PKEY *EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX *ctx)
1634{
1635 return ctx->peerkey;
1636}
1637
1638void EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX *ctx, void *data)
1639{
1640 ctx->app_data = data;
1641}
1642
1643void *EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX *ctx)
1644{
1645 return ctx->app_data;
1646}
1647
1648void EVP_PKEY_meth_set_init(EVP_PKEY_METHOD *pmeth,
1649 int (*init) (EVP_PKEY_CTX *ctx))
1650{
1651 pmeth->init = init;
1652}
1653
1654void EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD *pmeth,
1655 int (*copy) (EVP_PKEY_CTX *dst,
1656 const EVP_PKEY_CTX *src))
1657{
1658 pmeth->copy = copy;
1659}
1660
1661void EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD *pmeth,
1662 void (*cleanup) (EVP_PKEY_CTX *ctx))
1663{
1664 pmeth->cleanup = cleanup;
1665}
1666
1667void EVP_PKEY_meth_set_paramgen(EVP_PKEY_METHOD *pmeth,
1668 int (*paramgen_init) (EVP_PKEY_CTX *ctx),
1669 int (*paramgen) (EVP_PKEY_CTX *ctx,
1670 EVP_PKEY *pkey))
1671{
1672 pmeth->paramgen_init = paramgen_init;
1673 pmeth->paramgen = paramgen;
1674}
1675
1676void EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD *pmeth,
1677 int (*keygen_init) (EVP_PKEY_CTX *ctx),
1678 int (*keygen) (EVP_PKEY_CTX *ctx,
1679 EVP_PKEY *pkey))
1680{
1681 pmeth->keygen_init = keygen_init;
1682 pmeth->keygen = keygen;
1683}
1684
1685void EVP_PKEY_meth_set_sign(EVP_PKEY_METHOD *pmeth,
1686 int (*sign_init) (EVP_PKEY_CTX *ctx),
1687 int (*sign) (EVP_PKEY_CTX *ctx,
1688 unsigned char *sig, size_t *siglen,
1689 const unsigned char *tbs,
1690 size_t tbslen))
1691{
1692 pmeth->sign_init = sign_init;
1693 pmeth->sign = sign;
1694}
1695
1696void EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD *pmeth,
1697 int (*verify_init) (EVP_PKEY_CTX *ctx),
1698 int (*verify) (EVP_PKEY_CTX *ctx,
1699 const unsigned char *sig,
1700 size_t siglen,
1701 const unsigned char *tbs,
1702 size_t tbslen))
1703{
1704 pmeth->verify_init = verify_init;
1705 pmeth->verify = verify;
1706}
1707
1708void EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD *pmeth,
1709 int (*verify_recover_init) (EVP_PKEY_CTX
1710 *ctx),
1711 int (*verify_recover) (EVP_PKEY_CTX
1712 *ctx,
1713 unsigned char
1714 *sig,
1715 size_t *siglen,
1716 const unsigned
1717 char *tbs,
1718 size_t tbslen))
1719{
1720 pmeth->verify_recover_init = verify_recover_init;
1721 pmeth->verify_recover = verify_recover;
1722}
1723
1724void EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD *pmeth,
1725 int (*signctx_init) (EVP_PKEY_CTX *ctx,
1726 EVP_MD_CTX *mctx),
1727 int (*signctx) (EVP_PKEY_CTX *ctx,
1728 unsigned char *sig,
1729 size_t *siglen,
1730 EVP_MD_CTX *mctx))
1731{
1732 pmeth->signctx_init = signctx_init;
1733 pmeth->signctx = signctx;
1734}
1735
1736void EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD *pmeth,
1737 int (*verifyctx_init) (EVP_PKEY_CTX *ctx,
1738 EVP_MD_CTX *mctx),
1739 int (*verifyctx) (EVP_PKEY_CTX *ctx,
1740 const unsigned char *sig,
1741 int siglen,
1742 EVP_MD_CTX *mctx))
1743{
1744 pmeth->verifyctx_init = verifyctx_init;
1745 pmeth->verifyctx = verifyctx;
1746}
1747
1748void EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD *pmeth,
1749 int (*encrypt_init) (EVP_PKEY_CTX *ctx),
1750 int (*encryptfn) (EVP_PKEY_CTX *ctx,
1751 unsigned char *out,
1752 size_t *outlen,
1753 const unsigned char *in,
1754 size_t inlen))
1755{
1756 pmeth->encrypt_init = encrypt_init;
1757 pmeth->encrypt = encryptfn;
1758}
1759
1760void EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD *pmeth,
1761 int (*decrypt_init) (EVP_PKEY_CTX *ctx),
1762 int (*decrypt) (EVP_PKEY_CTX *ctx,
1763 unsigned char *out,
1764 size_t *outlen,
1765 const unsigned char *in,
1766 size_t inlen))
1767{
1768 pmeth->decrypt_init = decrypt_init;
1769 pmeth->decrypt = decrypt;
1770}
1771
1772void EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD *pmeth,
1773 int (*derive_init) (EVP_PKEY_CTX *ctx),
1774 int (*derive) (EVP_PKEY_CTX *ctx,
1775 unsigned char *key,
1776 size_t *keylen))
1777{
1778 pmeth->derive_init = derive_init;
1779 pmeth->derive = derive;
1780}
1781
1782void EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD *pmeth,
1783 int (*ctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
1784 void *p2),
1785 int (*ctrl_str) (EVP_PKEY_CTX *ctx,
1786 const char *type,
1787 const char *value))
1788{
1789 pmeth->ctrl = ctrl;
1790 pmeth->ctrl_str = ctrl_str;
1791}
1792
1793void EVP_PKEY_meth_set_digestsign(EVP_PKEY_METHOD *pmeth,
1794 int (*digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen,
1795 const unsigned char *tbs, size_t tbslen))
1796{
1797 pmeth->digestsign = digestsign;
1798}
1799
1800void EVP_PKEY_meth_set_digestverify(EVP_PKEY_METHOD *pmeth,
1801 int (*digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig,
1802 size_t siglen, const unsigned char *tbs,
1803 size_t tbslen))
1804{
1805 pmeth->digestverify = digestverify;
1806}
1807
1808void EVP_PKEY_meth_set_check(EVP_PKEY_METHOD *pmeth,
1809 int (*check) (EVP_PKEY *pkey))
1810{
1811 pmeth->check = check;
1812}
1813
1814void EVP_PKEY_meth_set_public_check(EVP_PKEY_METHOD *pmeth,
1815 int (*check) (EVP_PKEY *pkey))
1816{
1817 pmeth->public_check = check;
1818}
1819
1820void EVP_PKEY_meth_set_param_check(EVP_PKEY_METHOD *pmeth,
1821 int (*check) (EVP_PKEY *pkey))
1822{
1823 pmeth->param_check = check;
1824}
1825
1826void EVP_PKEY_meth_set_digest_custom(EVP_PKEY_METHOD *pmeth,
1827 int (*digest_custom) (EVP_PKEY_CTX *ctx,
1828 EVP_MD_CTX *mctx))
1829{
1830 pmeth->digest_custom = digest_custom;
1831}
1832
1833void EVP_PKEY_meth_get_init(const EVP_PKEY_METHOD *pmeth,
1834 int (**pinit) (EVP_PKEY_CTX *ctx))
1835{
1836 *pinit = pmeth->init;
1837}
1838
1839void EVP_PKEY_meth_get_copy(const EVP_PKEY_METHOD *pmeth,
1840 int (**pcopy) (EVP_PKEY_CTX *dst,
1841 const EVP_PKEY_CTX *src))
1842{
1843 *pcopy = pmeth->copy;
1844}
1845
1846void EVP_PKEY_meth_get_cleanup(const EVP_PKEY_METHOD *pmeth,
1847 void (**pcleanup) (EVP_PKEY_CTX *ctx))
1848{
1849 *pcleanup = pmeth->cleanup;
1850}
1851
1852void EVP_PKEY_meth_get_paramgen(const EVP_PKEY_METHOD *pmeth,
1853 int (**pparamgen_init) (EVP_PKEY_CTX *ctx),
1854 int (**pparamgen) (EVP_PKEY_CTX *ctx,
1855 EVP_PKEY *pkey))
1856{
1857 if (pparamgen_init)
1858 *pparamgen_init = pmeth->paramgen_init;
1859 if (pparamgen)
1860 *pparamgen = pmeth->paramgen;
1861}
1862
1863void EVP_PKEY_meth_get_keygen(const EVP_PKEY_METHOD *pmeth,
1864 int (**pkeygen_init) (EVP_PKEY_CTX *ctx),
1865 int (**pkeygen) (EVP_PKEY_CTX *ctx,
1866 EVP_PKEY *pkey))
1867{
1868 if (pkeygen_init)
1869 *pkeygen_init = pmeth->keygen_init;
1870 if (pkeygen)
1871 *pkeygen = pmeth->keygen;
1872}
1873
1874void EVP_PKEY_meth_get_sign(const EVP_PKEY_METHOD *pmeth,
1875 int (**psign_init) (EVP_PKEY_CTX *ctx),
1876 int (**psign) (EVP_PKEY_CTX *ctx,
1877 unsigned char *sig, size_t *siglen,
1878 const unsigned char *tbs,
1879 size_t tbslen))
1880{
1881 if (psign_init)
1882 *psign_init = pmeth->sign_init;
1883 if (psign)
1884 *psign = pmeth->sign;
1885}
1886
1887void EVP_PKEY_meth_get_verify(const EVP_PKEY_METHOD *pmeth,
1888 int (**pverify_init) (EVP_PKEY_CTX *ctx),
1889 int (**pverify) (EVP_PKEY_CTX *ctx,
1890 const unsigned char *sig,
1891 size_t siglen,
1892 const unsigned char *tbs,
1893 size_t tbslen))
1894{
1895 if (pverify_init)
1896 *pverify_init = pmeth->verify_init;
1897 if (pverify)
1898 *pverify = pmeth->verify;
1899}
1900
1901void EVP_PKEY_meth_get_verify_recover(const EVP_PKEY_METHOD *pmeth,
1902 int (**pverify_recover_init) (EVP_PKEY_CTX
1903 *ctx),
1904 int (**pverify_recover) (EVP_PKEY_CTX
1905 *ctx,
1906 unsigned char
1907 *sig,
1908 size_t *siglen,
1909 const unsigned
1910 char *tbs,
1911 size_t tbslen))
1912{
1913 if (pverify_recover_init)
1914 *pverify_recover_init = pmeth->verify_recover_init;
1915 if (pverify_recover)
1916 *pverify_recover = pmeth->verify_recover;
1917}
1918
1919void EVP_PKEY_meth_get_signctx(const EVP_PKEY_METHOD *pmeth,
1920 int (**psignctx_init) (EVP_PKEY_CTX *ctx,
1921 EVP_MD_CTX *mctx),
1922 int (**psignctx) (EVP_PKEY_CTX *ctx,
1923 unsigned char *sig,
1924 size_t *siglen,
1925 EVP_MD_CTX *mctx))
1926{
1927 if (psignctx_init)
1928 *psignctx_init = pmeth->signctx_init;
1929 if (psignctx)
1930 *psignctx = pmeth->signctx;
1931}
1932
1933void EVP_PKEY_meth_get_verifyctx(const EVP_PKEY_METHOD *pmeth,
1934 int (**pverifyctx_init) (EVP_PKEY_CTX *ctx,
1935 EVP_MD_CTX *mctx),
1936 int (**pverifyctx) (EVP_PKEY_CTX *ctx,
1937 const unsigned char *sig,
1938 int siglen,
1939 EVP_MD_CTX *mctx))
1940{
1941 if (pverifyctx_init)
1942 *pverifyctx_init = pmeth->verifyctx_init;
1943 if (pverifyctx)
1944 *pverifyctx = pmeth->verifyctx;
1945}
1946
1947void EVP_PKEY_meth_get_encrypt(const EVP_PKEY_METHOD *pmeth,
1948 int (**pencrypt_init) (EVP_PKEY_CTX *ctx),
1949 int (**pencryptfn) (EVP_PKEY_CTX *ctx,
1950 unsigned char *out,
1951 size_t *outlen,
1952 const unsigned char *in,
1953 size_t inlen))
1954{
1955 if (pencrypt_init)
1956 *pencrypt_init = pmeth->encrypt_init;
1957 if (pencryptfn)
1958 *pencryptfn = pmeth->encrypt;
1959}
1960
1961void EVP_PKEY_meth_get_decrypt(const EVP_PKEY_METHOD *pmeth,
1962 int (**pdecrypt_init) (EVP_PKEY_CTX *ctx),
1963 int (**pdecrypt) (EVP_PKEY_CTX *ctx,
1964 unsigned char *out,
1965 size_t *outlen,
1966 const unsigned char *in,
1967 size_t inlen))
1968{
1969 if (pdecrypt_init)
1970 *pdecrypt_init = pmeth->decrypt_init;
1971 if (pdecrypt)
1972 *pdecrypt = pmeth->decrypt;
1973}
1974
1975void EVP_PKEY_meth_get_derive(const EVP_PKEY_METHOD *pmeth,
1976 int (**pderive_init) (EVP_PKEY_CTX *ctx),
1977 int (**pderive) (EVP_PKEY_CTX *ctx,
1978 unsigned char *key,
1979 size_t *keylen))
1980{
1981 if (pderive_init)
1982 *pderive_init = pmeth->derive_init;
1983 if (pderive)
1984 *pderive = pmeth->derive;
1985}
1986
1987void EVP_PKEY_meth_get_ctrl(const EVP_PKEY_METHOD *pmeth,
1988 int (**pctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
1989 void *p2),
1990 int (**pctrl_str) (EVP_PKEY_CTX *ctx,
1991 const char *type,
1992 const char *value))
1993{
1994 if (pctrl)
1995 *pctrl = pmeth->ctrl;
1996 if (pctrl_str)
1997 *pctrl_str = pmeth->ctrl_str;
1998}
1999
2000void EVP_PKEY_meth_get_digestsign(const EVP_PKEY_METHOD *pmeth,
2001 int (**digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen,
2002 const unsigned char *tbs, size_t tbslen))
2003{
2004 if (digestsign)
2005 *digestsign = pmeth->digestsign;
2006}
2007
2008void EVP_PKEY_meth_get_digestverify(const EVP_PKEY_METHOD *pmeth,
2009 int (**digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig,
2010 size_t siglen, const unsigned char *tbs,
2011 size_t tbslen))
2012{
2013 if (digestverify)
2014 *digestverify = pmeth->digestverify;
2015}
2016
2017void EVP_PKEY_meth_get_check(const EVP_PKEY_METHOD *pmeth,
2018 int (**pcheck) (EVP_PKEY *pkey))
2019{
2020 if (pcheck != NULL)
2021 *pcheck = pmeth->check;
2022}
2023
2024void EVP_PKEY_meth_get_public_check(const EVP_PKEY_METHOD *pmeth,
2025 int (**pcheck) (EVP_PKEY *pkey))
2026{
2027 if (pcheck != NULL)
2028 *pcheck = pmeth->public_check;
2029}
2030
2031void EVP_PKEY_meth_get_param_check(const EVP_PKEY_METHOD *pmeth,
2032 int (**pcheck) (EVP_PKEY *pkey))
2033{
2034 if (pcheck != NULL)
2035 *pcheck = pmeth->param_check;
2036}
2037
2038void EVP_PKEY_meth_get_digest_custom(const EVP_PKEY_METHOD *pmeth,
2039 int (**pdigest_custom) (EVP_PKEY_CTX *ctx,
2040 EVP_MD_CTX *mctx))
2041{
2042 if (pdigest_custom != NULL)
2043 *pdigest_custom = pmeth->digest_custom;
2044}
2045
2046#endif /* FIPS_MODULE */
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