VirtualBox

source: vbox/trunk/src/libs/openssl-3.1.3/crypto/evp/pmeth_lib.c@ 102427

Last change on this file since 102427 was 101211, checked in by vboxsync, 17 months ago

openssl-3.1.3: Applied and adjusted our OpenSSL changes to 3.1.2. bugref:10527
File size: 69.0 KB
Line 
1/*
2 * Copyright 2006-2023 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_EC
70 ossl_ecx25519_pkey_method,
71 ossl_ecx448_pkey_method,
72# endif
73# ifndef OPENSSL_NO_EC
74 ossl_ed25519_pkey_method,
75 ossl_ed448_pkey_method,
76# endif
77};
78
79DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, pmeth_fn, pmeth_func);
80
81static int pmeth_func_cmp(const EVP_PKEY_METHOD *const *a, pmeth_fn const *b)
82{
83 return ((*a)->pkey_id - ((**b)())->pkey_id);
84}
85
86IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, pmeth_fn, pmeth_func);
87
88static int pmeth_cmp(const EVP_PKEY_METHOD *const *a,
89 const EVP_PKEY_METHOD *const *b)
90{
91 return ((*a)->pkey_id - (*b)->pkey_id);
92}
93
94static const EVP_PKEY_METHOD *evp_pkey_meth_find_added_by_application(int type)
95{
96 if (app_pkey_methods != NULL) {
97 int idx;
98 EVP_PKEY_METHOD tmp;
99
100 tmp.pkey_id = type;
101 idx = sk_EVP_PKEY_METHOD_find(app_pkey_methods, &tmp);
102 if (idx >= 0)
103 return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx);
104 }
105 return NULL;
106}
107
108const EVP_PKEY_METHOD *EVP_PKEY_meth_find(int type)
109{
110 pmeth_fn *ret;
111 EVP_PKEY_METHOD tmp;
112 const EVP_PKEY_METHOD *t;
113
114 if ((t = evp_pkey_meth_find_added_by_application(type)) != NULL)
115 return t;
116
117 tmp.pkey_id = type;
118 t = &tmp;
119 ret = OBJ_bsearch_pmeth_func(&t, standard_methods,
120 OSSL_NELEM(standard_methods));
121 if (ret == NULL || *ret == NULL)
122 return NULL;
123 return (**ret)();
124}
125
126EVP_PKEY_METHOD *EVP_PKEY_meth_new(int id, int flags)
127{
128 EVP_PKEY_METHOD *pmeth;
129
130 pmeth = OPENSSL_zalloc(sizeof(*pmeth));
131 if (pmeth == NULL) {
132 ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
133 return NULL;
134 }
135
136 pmeth->pkey_id = id;
137 pmeth->flags = flags | EVP_PKEY_FLAG_DYNAMIC;
138 return pmeth;
139}
140
141static void help_get_legacy_alg_type_from_keymgmt(const char *keytype,
142 void *arg)
143{
144 int *type = arg;
145
146 if (*type == NID_undef)
147 *type = evp_pkey_name2type(keytype);
148}
149
150static int get_legacy_alg_type_from_keymgmt(const EVP_KEYMGMT *keymgmt)
151{
152 int type = NID_undef;
153
154 EVP_KEYMGMT_names_do_all(keymgmt, help_get_legacy_alg_type_from_keymgmt,
155 &type);
156 return type;
157}
158#endif /* FIPS_MODULE */
159
160int evp_pkey_ctx_state(const EVP_PKEY_CTX *ctx)
161{
162 if (ctx->operation == EVP_PKEY_OP_UNDEFINED)
163 return EVP_PKEY_STATE_UNKNOWN;
164
165 if ((EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
166 && ctx->op.kex.algctx != NULL)
167 || (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
168 && ctx->op.sig.algctx != NULL)
169 || (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
170 && ctx->op.ciph.algctx != NULL)
171 || (EVP_PKEY_CTX_IS_GEN_OP(ctx)
172 && ctx->op.keymgmt.genctx != NULL)
173 || (EVP_PKEY_CTX_IS_KEM_OP(ctx)
174 && ctx->op.encap.algctx != NULL))
175 return EVP_PKEY_STATE_PROVIDER;
176
177 return EVP_PKEY_STATE_LEGACY;
178}
179
180static EVP_PKEY_CTX *int_ctx_new(OSSL_LIB_CTX *libctx,
181 EVP_PKEY *pkey, ENGINE *e,
182 const char *keytype, const char *propquery,
183 int id)
184
185{
186 EVP_PKEY_CTX *ret = NULL;
187 const EVP_PKEY_METHOD *pmeth = NULL, *app_pmeth = NULL;
188 EVP_KEYMGMT *keymgmt = NULL;
189
190 /* Code below to be removed when legacy support is dropped. */
191 /* BEGIN legacy */
192 if (id == -1) {
193 if (pkey != NULL && !evp_pkey_is_provided(pkey)) {
194 id = pkey->type;
195 } else {
196 if (pkey != NULL) {
197 /* Must be provided if we get here */
198 keytype = EVP_KEYMGMT_get0_name(pkey->keymgmt);
199 }
200#ifndef FIPS_MODULE
201 if (keytype != NULL) {
202 id = evp_pkey_name2type(keytype);
203 if (id == NID_undef)
204 id = -1;
205 }
206#endif
207 }
208 }
209 /* If no ID was found here, we can only resort to find a keymgmt */
210 if (id == -1) {
211#ifndef FIPS_MODULE
212 /* Using engine with a key without id will not work */
213 if (e != NULL) {
214 ERR_raise(ERR_LIB_EVP, EVP_R_UNSUPPORTED_ALGORITHM);
215 return NULL;
216 }
217#endif
218 goto common;
219 }
220
221#ifndef FIPS_MODULE
222 /*
223 * Here, we extract what information we can for the purpose of
224 * supporting usage with implementations from providers, to make
225 * for a smooth transition from legacy stuff to provider based stuff.
226 *
227 * If an engine is given, this is entirely legacy, and we should not
228 * pretend anything else, so we clear the name.
229 */
230 if (e != NULL)
231 keytype = NULL;
232 if (e == NULL && (pkey == NULL || pkey->foreign == 0))
233 keytype = OBJ_nid2sn(id);
234
235# ifndef OPENSSL_NO_ENGINE
236 if (e == NULL && pkey != NULL)
237 e = pkey->pmeth_engine != NULL ? pkey->pmeth_engine : pkey->engine;
238 /* Try to find an ENGINE which implements this method */
239 if (e != NULL) {
240 if (!ENGINE_init(e)) {
241 ERR_raise(ERR_LIB_EVP, ERR_R_ENGINE_LIB);
242 return NULL;
243 }
244 } else {
245 e = ENGINE_get_pkey_meth_engine(id);
246 }
247
248 /*
249 * If an ENGINE handled this method look it up. Otherwise use internal
250 * tables.
251 */
252 if (e != NULL)
253 pmeth = ENGINE_get_pkey_meth(e, id);
254 else if (pkey != NULL && pkey->foreign)
255 pmeth = EVP_PKEY_meth_find(id);
256 else
257# endif
258 app_pmeth = pmeth = evp_pkey_meth_find_added_by_application(id);
259
260 /* END legacy */
261#endif /* FIPS_MODULE */
262 common:
263 /*
264 * If there's no engine and no app supplied pmeth and there's a name, we try
265 * fetching a provider implementation.
266 */
267 if (e == NULL && app_pmeth == NULL && keytype != NULL) {
268 /*
269 * If |pkey| is given and is provided, we take a reference to its
270 * keymgmt. Otherwise, we fetch one for the keytype we got. This
271 * is to ensure that operation init functions can access what they
272 * need through this single pointer.
273 */
274 if (pkey != NULL && pkey->keymgmt != NULL) {
275 if (!EVP_KEYMGMT_up_ref(pkey->keymgmt))
276 ERR_raise(ERR_LIB_EVP, EVP_R_INITIALIZATION_ERROR);
277 else
278 keymgmt = pkey->keymgmt;
279 } else {
280 keymgmt = EVP_KEYMGMT_fetch(libctx, keytype, propquery);
281 }
282 if (keymgmt == NULL)
283 return NULL; /* EVP_KEYMGMT_fetch() recorded an error */
284
285#ifndef FIPS_MODULE
286 /*
287 * Chase down the legacy NID, as that might be needed for diverse
288 * purposes, such as ensure that EVP_PKEY_type() can return sensible
289 * values. We go through all keymgmt names, because the keytype
290 * that's passed to this function doesn't necessarily translate
291 * directly.
292 */
293 if (keymgmt != NULL) {
294 int tmp_id = get_legacy_alg_type_from_keymgmt(keymgmt);
295
296 if (tmp_id != NID_undef) {
297 if (id == -1) {
298 id = tmp_id;
299 } else {
300 /*
301 * It really really shouldn't differ. If it still does,
302 * something is very wrong.
303 */
304 if (!ossl_assert(id == tmp_id)) {
305 ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR);
306 EVP_KEYMGMT_free(keymgmt);
307 return NULL;
308 }
309 }
310 }
311 }
312#endif
313 }
314
315 if (pmeth == NULL && keymgmt == NULL) {
316 ERR_raise(ERR_LIB_EVP, EVP_R_UNSUPPORTED_ALGORITHM);
317 } else {
318 ret = OPENSSL_zalloc(sizeof(*ret));
319 if (ret == NULL)
320 ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
321 }
322
323#if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODULE)
324 if ((ret == NULL || pmeth == NULL) && e != NULL)
325 ENGINE_finish(e);
326#endif
327
328 if (ret == NULL) {
329 EVP_KEYMGMT_free(keymgmt);
330 return NULL;
331 }
332 if (propquery != NULL) {
333 ret->propquery = OPENSSL_strdup(propquery);
334 if (ret->propquery == NULL) {
335 OPENSSL_free(ret);
336 EVP_KEYMGMT_free(keymgmt);
337 return NULL;
338 }
339 }
340 ret->libctx = libctx;
341 ret->keytype = keytype;
342 ret->keymgmt = keymgmt;
343 ret->legacy_keytype = id;
344 ret->engine = e;
345 ret->pmeth = pmeth;
346 ret->operation = EVP_PKEY_OP_UNDEFINED;
347 ret->pkey = pkey;
348 if (pkey != NULL)
349 EVP_PKEY_up_ref(pkey);
350
351 if (pmeth != NULL && pmeth->init != NULL) {
352 if (pmeth->init(ret) <= 0) {
353 ret->pmeth = NULL;
354 EVP_PKEY_CTX_free(ret);
355 return NULL;
356 }
357 }
358
359 return ret;
360}
361
362/*- All methods below can also be used in FIPS_MODULE */
363
364EVP_PKEY_CTX *EVP_PKEY_CTX_new_from_name(OSSL_LIB_CTX *libctx,
365 const char *name,
366 const char *propquery)
367{
368 return int_ctx_new(libctx, NULL, NULL, name, propquery, -1);
369}
370
371EVP_PKEY_CTX *EVP_PKEY_CTX_new_from_pkey(OSSL_LIB_CTX *libctx, EVP_PKEY *pkey,
372 const char *propquery)
373{
374 return int_ctx_new(libctx, pkey, NULL, NULL, propquery, -1);
375}
376
377void evp_pkey_ctx_free_old_ops(EVP_PKEY_CTX *ctx)
378{
379 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
380 if (ctx->op.sig.algctx != NULL && ctx->op.sig.signature != NULL)
381 ctx->op.sig.signature->freectx(ctx->op.sig.algctx);
382 EVP_SIGNATURE_free(ctx->op.sig.signature);
383 ctx->op.sig.algctx = NULL;
384 ctx->op.sig.signature = NULL;
385 } else if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
386 if (ctx->op.kex.algctx != NULL && ctx->op.kex.exchange != NULL)
387 ctx->op.kex.exchange->freectx(ctx->op.kex.algctx);
388 EVP_KEYEXCH_free(ctx->op.kex.exchange);
389 ctx->op.kex.algctx = NULL;
390 ctx->op.kex.exchange = NULL;
391 } else if (EVP_PKEY_CTX_IS_KEM_OP(ctx)) {
392 if (ctx->op.encap.algctx != NULL && ctx->op.encap.kem != NULL)
393 ctx->op.encap.kem->freectx(ctx->op.encap.algctx);
394 EVP_KEM_free(ctx->op.encap.kem);
395 ctx->op.encap.algctx = NULL;
396 ctx->op.encap.kem = NULL;
397 }
398 else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)) {
399 if (ctx->op.ciph.algctx != NULL && ctx->op.ciph.cipher != NULL)
400 ctx->op.ciph.cipher->freectx(ctx->op.ciph.algctx);
401 EVP_ASYM_CIPHER_free(ctx->op.ciph.cipher);
402 ctx->op.ciph.algctx = NULL;
403 ctx->op.ciph.cipher = NULL;
404 } else if (EVP_PKEY_CTX_IS_GEN_OP(ctx)) {
405 if (ctx->op.keymgmt.genctx != NULL && ctx->keymgmt != NULL)
406 evp_keymgmt_gen_cleanup(ctx->keymgmt, ctx->op.keymgmt.genctx);
407 }
408}
409
410void EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx)
411{
412 if (ctx == NULL)
413 return;
414 if (ctx->pmeth && ctx->pmeth->cleanup)
415 ctx->pmeth->cleanup(ctx);
416
417 evp_pkey_ctx_free_old_ops(ctx);
418#ifndef FIPS_MODULE
419 evp_pkey_ctx_free_all_cached_data(ctx);
420#endif
421 EVP_KEYMGMT_free(ctx->keymgmt);
422
423 OPENSSL_free(ctx->propquery);
424 EVP_PKEY_free(ctx->pkey);
425 EVP_PKEY_free(ctx->peerkey);
426#if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODULE)
427 ENGINE_finish(ctx->engine);
428#endif
429 BN_free(ctx->rsa_pubexp);
430 OPENSSL_free(ctx);
431}
432
433#ifndef FIPS_MODULE
434
435void EVP_PKEY_meth_get0_info(int *ppkey_id, int *pflags,
436 const EVP_PKEY_METHOD *meth)
437{
438 if (ppkey_id)
439 *ppkey_id = meth->pkey_id;
440 if (pflags)
441 *pflags = meth->flags;
442}
443
444void EVP_PKEY_meth_copy(EVP_PKEY_METHOD *dst, const EVP_PKEY_METHOD *src)
445{
446 int pkey_id = dst->pkey_id;
447 int flags = dst->flags;
448
449 *dst = *src;
450
451 /* We only copy the function pointers so restore the other values */
452 dst->pkey_id = pkey_id;
453 dst->flags = flags;
454}
455
456void EVP_PKEY_meth_free(EVP_PKEY_METHOD *pmeth)
457{
458 if (pmeth && (pmeth->flags & EVP_PKEY_FLAG_DYNAMIC))
459 OPENSSL_free(pmeth);
460}
461
462EVP_PKEY_CTX *EVP_PKEY_CTX_new(EVP_PKEY *pkey, ENGINE *e)
463{
464 return int_ctx_new(NULL, pkey, e, NULL, NULL, -1);
465}
466
467EVP_PKEY_CTX *EVP_PKEY_CTX_new_id(int id, ENGINE *e)
468{
469 return int_ctx_new(NULL, NULL, e, NULL, NULL, id);
470}
471
472EVP_PKEY_CTX *EVP_PKEY_CTX_dup(const EVP_PKEY_CTX *pctx)
473{
474 EVP_PKEY_CTX *rctx;
475
476# ifndef OPENSSL_NO_ENGINE
477 /* Make sure it's safe to copy a pkey context using an ENGINE */
478 if (pctx->engine && !ENGINE_init(pctx->engine)) {
479 ERR_raise(ERR_LIB_EVP, ERR_R_ENGINE_LIB);
480 return 0;
481 }
482# endif
483 rctx = OPENSSL_zalloc(sizeof(*rctx));
484 if (rctx == NULL) {
485 ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
486 return NULL;
487 }
488
489 if (pctx->pkey != NULL)
490 EVP_PKEY_up_ref(pctx->pkey);
491 rctx->pkey = pctx->pkey;
492 rctx->operation = pctx->operation;
493 rctx->libctx = pctx->libctx;
494 rctx->keytype = pctx->keytype;
495 rctx->propquery = NULL;
496 if (pctx->propquery != NULL) {
497 rctx->propquery = OPENSSL_strdup(pctx->propquery);
498 if (rctx->propquery == NULL)
499 goto err;
500 }
501 rctx->legacy_keytype = pctx->legacy_keytype;
502
503 if (EVP_PKEY_CTX_IS_DERIVE_OP(pctx)) {
504 if (pctx->op.kex.exchange != NULL) {
505 rctx->op.kex.exchange = pctx->op.kex.exchange;
506 if (!EVP_KEYEXCH_up_ref(rctx->op.kex.exchange))
507 goto err;
508 }
509 if (pctx->op.kex.algctx != NULL) {
510 if (!ossl_assert(pctx->op.kex.exchange != NULL))
511 goto err;
512
513 if (pctx->op.kex.exchange->dupctx != NULL)
514 rctx->op.kex.algctx
515 = pctx->op.kex.exchange->dupctx(pctx->op.kex.algctx);
516
517 if (rctx->op.kex.algctx == NULL) {
518 EVP_KEYEXCH_free(rctx->op.kex.exchange);
519 rctx->op.kex.exchange = NULL;
520 goto err;
521 }
522 return rctx;
523 }
524 } else if (EVP_PKEY_CTX_IS_SIGNATURE_OP(pctx)) {
525 if (pctx->op.sig.signature != NULL) {
526 rctx->op.sig.signature = pctx->op.sig.signature;
527 if (!EVP_SIGNATURE_up_ref(rctx->op.sig.signature))
528 goto err;
529 }
530 if (pctx->op.sig.algctx != NULL) {
531 if (!ossl_assert(pctx->op.sig.signature != NULL))
532 goto err;
533
534 if (pctx->op.sig.signature->dupctx != NULL)
535 rctx->op.sig.algctx
536 = pctx->op.sig.signature->dupctx(pctx->op.sig.algctx);
537
538 if (rctx->op.sig.algctx == NULL) {
539 EVP_SIGNATURE_free(rctx->op.sig.signature);
540 rctx->op.sig.signature = NULL;
541 goto err;
542 }
543 return rctx;
544 }
545 } else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(pctx)) {
546 if (pctx->op.ciph.cipher != NULL) {
547 rctx->op.ciph.cipher = pctx->op.ciph.cipher;
548 if (!EVP_ASYM_CIPHER_up_ref(rctx->op.ciph.cipher))
549 goto err;
550 }
551 if (pctx->op.ciph.algctx != NULL) {
552 if (!ossl_assert(pctx->op.ciph.cipher != NULL))
553 goto err;
554
555 if (pctx->op.ciph.cipher->dupctx != NULL)
556 rctx->op.ciph.algctx
557 = pctx->op.ciph.cipher->dupctx(pctx->op.ciph.algctx);
558
559 if (rctx->op.ciph.algctx == NULL) {
560 EVP_ASYM_CIPHER_free(rctx->op.ciph.cipher);
561 rctx->op.ciph.cipher = NULL;
562 goto err;
563 }
564 return rctx;
565 }
566 } else if (EVP_PKEY_CTX_IS_KEM_OP(pctx)) {
567 if (pctx->op.encap.kem != NULL) {
568 rctx->op.encap.kem = pctx->op.encap.kem;
569 if (!EVP_KEM_up_ref(rctx->op.encap.kem))
570 goto err;
571 }
572 if (pctx->op.encap.algctx != NULL) {
573 if (!ossl_assert(pctx->op.encap.kem != NULL))
574 goto err;
575
576 if (pctx->op.encap.kem->dupctx != NULL)
577 rctx->op.encap.algctx
578 = pctx->op.encap.kem->dupctx(pctx->op.encap.algctx);
579
580 if (rctx->op.encap.algctx == NULL) {
581 EVP_KEM_free(rctx->op.encap.kem);
582 rctx->op.encap.kem = NULL;
583 goto err;
584 }
585 return rctx;
586 }
587 } else if (EVP_PKEY_CTX_IS_GEN_OP(pctx)) {
588 /* Not supported - This would need a gen_dupctx() to work */
589 goto err;
590 }
591
592 rctx->pmeth = pctx->pmeth;
593# ifndef OPENSSL_NO_ENGINE
594 rctx->engine = pctx->engine;
595# endif
596
597 if (pctx->peerkey != NULL)
598 EVP_PKEY_up_ref(pctx->peerkey);
599 rctx->peerkey = pctx->peerkey;
600
601 if (pctx->pmeth == NULL) {
602 if (rctx->operation == EVP_PKEY_OP_UNDEFINED) {
603 EVP_KEYMGMT *tmp_keymgmt = pctx->keymgmt;
604 void *provkey;
605
606 provkey = evp_pkey_export_to_provider(pctx->pkey, pctx->libctx,
607 &tmp_keymgmt, pctx->propquery);
608 if (provkey == NULL)
609 goto err;
610 if (!EVP_KEYMGMT_up_ref(tmp_keymgmt))
611 goto err;
612 EVP_KEYMGMT_free(rctx->keymgmt);
613 rctx->keymgmt = tmp_keymgmt;
614 return rctx;
615 }
616 } else if (pctx->pmeth->copy(rctx, pctx) > 0) {
617 return rctx;
618 }
619err:
620 rctx->pmeth = NULL;
621 EVP_PKEY_CTX_free(rctx);
622 return NULL;
623}
624
625int EVP_PKEY_meth_add0(const EVP_PKEY_METHOD *pmeth)
626{
627 if (app_pkey_methods == NULL) {
628 app_pkey_methods = sk_EVP_PKEY_METHOD_new(pmeth_cmp);
629 if (app_pkey_methods == NULL){
630 ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
631 return 0;
632 }
633 }
634 if (!sk_EVP_PKEY_METHOD_push(app_pkey_methods, pmeth)) {
635 ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
636 return 0;
637 }
638 sk_EVP_PKEY_METHOD_sort(app_pkey_methods);
639 return 1;
640}
641
642void evp_app_cleanup_int(void)
643{
644 if (app_pkey_methods != NULL)
645 sk_EVP_PKEY_METHOD_pop_free(app_pkey_methods, EVP_PKEY_meth_free);
646}
647
648int EVP_PKEY_meth_remove(const EVP_PKEY_METHOD *pmeth)
649{
650 const EVP_PKEY_METHOD *ret;
651
652 ret = sk_EVP_PKEY_METHOD_delete_ptr(app_pkey_methods, pmeth);
653
654 return ret == NULL ? 0 : 1;
655}
656
657size_t EVP_PKEY_meth_get_count(void)
658{
659 size_t rv = OSSL_NELEM(standard_methods);
660
661 if (app_pkey_methods)
662 rv += sk_EVP_PKEY_METHOD_num(app_pkey_methods);
663 return rv;
664}
665
666const EVP_PKEY_METHOD *EVP_PKEY_meth_get0(size_t idx)
667{
668 if (idx < OSSL_NELEM(standard_methods))
669 return (standard_methods[idx])();
670 if (app_pkey_methods == NULL)
671 return NULL;
672 idx -= OSSL_NELEM(standard_methods);
673 if (idx >= (size_t)sk_EVP_PKEY_METHOD_num(app_pkey_methods))
674 return NULL;
675 return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx);
676}
677#endif
678
679int EVP_PKEY_CTX_is_a(EVP_PKEY_CTX *ctx, const char *keytype)
680{
681#ifndef FIPS_MODULE
682 if (evp_pkey_ctx_is_legacy(ctx))
683 return (ctx->pmeth->pkey_id == evp_pkey_name2type(keytype));
684#endif
685 return EVP_KEYMGMT_is_a(ctx->keymgmt, keytype);
686}
687
688int EVP_PKEY_CTX_set_params(EVP_PKEY_CTX *ctx, const OSSL_PARAM *params)
689{
690 switch (evp_pkey_ctx_state(ctx)) {
691 case EVP_PKEY_STATE_PROVIDER:
692 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
693 && ctx->op.kex.exchange != NULL
694 && ctx->op.kex.exchange->set_ctx_params != NULL)
695 return
696 ctx->op.kex.exchange->set_ctx_params(ctx->op.kex.algctx,
697 params);
698 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
699 && ctx->op.sig.signature != NULL
700 && ctx->op.sig.signature->set_ctx_params != NULL)
701 return
702 ctx->op.sig.signature->set_ctx_params(ctx->op.sig.algctx,
703 params);
704 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
705 && ctx->op.ciph.cipher != NULL
706 && ctx->op.ciph.cipher->set_ctx_params != NULL)
707 return
708 ctx->op.ciph.cipher->set_ctx_params(ctx->op.ciph.algctx,
709 params);
710 if (EVP_PKEY_CTX_IS_GEN_OP(ctx)
711 && ctx->keymgmt != NULL
712 && ctx->keymgmt->gen_set_params != NULL)
713 return
714 evp_keymgmt_gen_set_params(ctx->keymgmt, ctx->op.keymgmt.genctx,
715 params);
716 if (EVP_PKEY_CTX_IS_KEM_OP(ctx)
717 && ctx->op.encap.kem != NULL
718 && ctx->op.encap.kem->set_ctx_params != NULL)
719 return
720 ctx->op.encap.kem->set_ctx_params(ctx->op.encap.algctx,
721 params);
722 break;
723#ifndef FIPS_MODULE
724 case EVP_PKEY_STATE_UNKNOWN:
725 case EVP_PKEY_STATE_LEGACY:
726 return evp_pkey_ctx_set_params_to_ctrl(ctx, params);
727#endif
728 }
729 return 0;
730}
731
732int EVP_PKEY_CTX_get_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
733{
734 switch (evp_pkey_ctx_state(ctx)) {
735 case EVP_PKEY_STATE_PROVIDER:
736 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
737 && ctx->op.kex.exchange != NULL
738 && ctx->op.kex.exchange->get_ctx_params != NULL)
739 return
740 ctx->op.kex.exchange->get_ctx_params(ctx->op.kex.algctx,
741 params);
742 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
743 && ctx->op.sig.signature != NULL
744 && ctx->op.sig.signature->get_ctx_params != NULL)
745 return
746 ctx->op.sig.signature->get_ctx_params(ctx->op.sig.algctx,
747 params);
748 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
749 && ctx->op.ciph.cipher != NULL
750 && ctx->op.ciph.cipher->get_ctx_params != NULL)
751 return
752 ctx->op.ciph.cipher->get_ctx_params(ctx->op.ciph.algctx,
753 params);
754 if (EVP_PKEY_CTX_IS_KEM_OP(ctx)
755 && ctx->op.encap.kem != NULL
756 && ctx->op.encap.kem->get_ctx_params != NULL)
757 return
758 ctx->op.encap.kem->get_ctx_params(ctx->op.encap.algctx,
759 params);
760 break;
761#ifndef FIPS_MODULE
762 case EVP_PKEY_STATE_UNKNOWN:
763 case EVP_PKEY_STATE_LEGACY:
764 return evp_pkey_ctx_get_params_to_ctrl(ctx, params);
765#endif
766 }
767 return 0;
768}
769
770#ifndef FIPS_MODULE
771const OSSL_PARAM *EVP_PKEY_CTX_gettable_params(const EVP_PKEY_CTX *ctx)
772{
773 void *provctx;
774
775 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
776 && ctx->op.kex.exchange != NULL
777 && ctx->op.kex.exchange->gettable_ctx_params != NULL) {
778 provctx = ossl_provider_ctx(EVP_KEYEXCH_get0_provider(ctx->op.kex.exchange));
779 return ctx->op.kex.exchange->gettable_ctx_params(ctx->op.kex.algctx,
780 provctx);
781 }
782 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
783 && ctx->op.sig.signature != NULL
784 && ctx->op.sig.signature->gettable_ctx_params != NULL) {
785 provctx = ossl_provider_ctx(
786 EVP_SIGNATURE_get0_provider(ctx->op.sig.signature));
787 return ctx->op.sig.signature->gettable_ctx_params(ctx->op.sig.algctx,
788 provctx);
789 }
790 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
791 && ctx->op.ciph.cipher != NULL
792 && ctx->op.ciph.cipher->gettable_ctx_params != NULL) {
793 provctx = ossl_provider_ctx(
794 EVP_ASYM_CIPHER_get0_provider(ctx->op.ciph.cipher));
795 return ctx->op.ciph.cipher->gettable_ctx_params(ctx->op.ciph.algctx,
796 provctx);
797 }
798 if (EVP_PKEY_CTX_IS_KEM_OP(ctx)
799 && ctx->op.encap.kem != NULL
800 && ctx->op.encap.kem->gettable_ctx_params != NULL) {
801 provctx = ossl_provider_ctx(EVP_KEM_get0_provider(ctx->op.encap.kem));
802 return ctx->op.encap.kem->gettable_ctx_params(ctx->op.encap.algctx,
803 provctx);
804 }
805 return NULL;
806}
807
808const OSSL_PARAM *EVP_PKEY_CTX_settable_params(const EVP_PKEY_CTX *ctx)
809{
810 void *provctx;
811
812 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
813 && ctx->op.kex.exchange != NULL
814 && ctx->op.kex.exchange->settable_ctx_params != NULL) {
815 provctx = ossl_provider_ctx(EVP_KEYEXCH_get0_provider(ctx->op.kex.exchange));
816 return ctx->op.kex.exchange->settable_ctx_params(ctx->op.kex.algctx,
817 provctx);
818 }
819 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
820 && ctx->op.sig.signature != NULL
821 && ctx->op.sig.signature->settable_ctx_params != NULL) {
822 provctx = ossl_provider_ctx(
823 EVP_SIGNATURE_get0_provider(ctx->op.sig.signature));
824 return ctx->op.sig.signature->settable_ctx_params(ctx->op.sig.algctx,
825 provctx);
826 }
827 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
828 && ctx->op.ciph.cipher != NULL
829 && ctx->op.ciph.cipher->settable_ctx_params != NULL) {
830 provctx = ossl_provider_ctx(
831 EVP_ASYM_CIPHER_get0_provider(ctx->op.ciph.cipher));
832 return ctx->op.ciph.cipher->settable_ctx_params(ctx->op.ciph.algctx,
833 provctx);
834 }
835 if (EVP_PKEY_CTX_IS_GEN_OP(ctx)
836 && ctx->keymgmt != NULL
837 && ctx->keymgmt->gen_settable_params != NULL) {
838 provctx = ossl_provider_ctx(EVP_KEYMGMT_get0_provider(ctx->keymgmt));
839 return ctx->keymgmt->gen_settable_params(ctx->op.keymgmt.genctx,
840 provctx);
841 }
842 if (EVP_PKEY_CTX_IS_KEM_OP(ctx)
843 && ctx->op.encap.kem != NULL
844 && ctx->op.encap.kem->settable_ctx_params != NULL) {
845 provctx = ossl_provider_ctx(EVP_KEM_get0_provider(ctx->op.encap.kem));
846 return ctx->op.encap.kem->settable_ctx_params(ctx->op.encap.algctx,
847 provctx);
848 }
849 return NULL;
850}
851
852/*
853 * Internal helpers for stricter EVP_PKEY_CTX_{set,get}_params().
854 *
855 * Return 1 on success, 0 or negative for errors.
856 *
857 * In particular they return -2 if any of the params is not supported.
858 *
859 * They are not available in FIPS_MODULE as they depend on
860 * - EVP_PKEY_CTX_{get,set}_params()
861 * - EVP_PKEY_CTX_{gettable,settable}_params()
862 *
863 */
864int evp_pkey_ctx_set_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_set_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 *settable = EVP_PKEY_CTX_settable_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(settable, p->key) == NULL )
882 return -2;
883 }
884 }
885
886 return EVP_PKEY_CTX_set_params(ctx, params);
887}
888
889int evp_pkey_ctx_get_params_strict(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
890{
891 if (ctx == NULL || params == NULL)
892 return 0;
893
894 /*
895 * We only check for provider side EVP_PKEY_CTX. For #legacy, we
896 * depend on the translation that happens in EVP_PKEY_CTX_get_params()
897 * call, and that the resulting ctrl call will return -2 if it doesn't
898 * known the ctrl command number.
899 */
900 if (evp_pkey_ctx_is_provided(ctx)) {
901 const OSSL_PARAM *gettable = EVP_PKEY_CTX_gettable_params(ctx);
902 const OSSL_PARAM *p;
903
904 for (p = params; p->key != NULL; p++ ) {
905 /* Check the ctx actually understands this parameter */
906 if (OSSL_PARAM_locate_const(gettable, p->key) == NULL )
907 return -2;
908 }
909 }
910
911 return EVP_PKEY_CTX_get_params(ctx, params);
912}
913
914int EVP_PKEY_CTX_get_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD **md)
915{
916 OSSL_PARAM sig_md_params[2], *p = sig_md_params;
917 /* 80 should be big enough */
918 char name[80] = "";
919 const EVP_MD *tmp;
920
921 if (ctx == NULL || !EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
922 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
923 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
924 return -2;
925 }
926
927 if (ctx->op.sig.algctx == NULL)
928 return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG,
929 EVP_PKEY_CTRL_GET_MD, 0, (void *)(md));
930
931 *p++ = OSSL_PARAM_construct_utf8_string(OSSL_SIGNATURE_PARAM_DIGEST,
932 name,
933 sizeof(name));
934 *p = OSSL_PARAM_construct_end();
935
936 if (!EVP_PKEY_CTX_get_params(ctx, sig_md_params))
937 return 0;
938
939 tmp = evp_get_digestbyname_ex(ctx->libctx, name);
940 if (tmp == NULL)
941 return 0;
942
943 *md = tmp;
944
945 return 1;
946}
947
948static int evp_pkey_ctx_set_md(EVP_PKEY_CTX *ctx, const EVP_MD *md,
949 int fallback, const char *param, int op,
950 int ctrl)
951{
952 OSSL_PARAM md_params[2], *p = md_params;
953 const char *name;
954
955 if (ctx == NULL || (ctx->operation & op) == 0) {
956 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
957 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
958 return -2;
959 }
960
961 if (fallback)
962 return EVP_PKEY_CTX_ctrl(ctx, -1, op, ctrl, 0, (void *)(md));
963
964 if (md == NULL) {
965 name = "";
966 } else {
967 name = EVP_MD_get0_name(md);
968 }
969
970 *p++ = OSSL_PARAM_construct_utf8_string(param,
971 /*
972 * Cast away the const. This is read
973 * only so should be safe
974 */
975 (char *)name, 0);
976 *p = OSSL_PARAM_construct_end();
977
978 return EVP_PKEY_CTX_set_params(ctx, md_params);
979}
980
981int EVP_PKEY_CTX_set_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD *md)
982{
983 return evp_pkey_ctx_set_md(ctx, md, ctx->op.sig.algctx == NULL,
984 OSSL_SIGNATURE_PARAM_DIGEST,
985 EVP_PKEY_OP_TYPE_SIG, EVP_PKEY_CTRL_MD);
986}
987
988int EVP_PKEY_CTX_set_tls1_prf_md(EVP_PKEY_CTX *ctx, const EVP_MD *md)
989{
990 return evp_pkey_ctx_set_md(ctx, md, ctx->op.kex.algctx == NULL,
991 OSSL_KDF_PARAM_DIGEST,
992 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_TLS_MD);
993}
994
995static int evp_pkey_ctx_set1_octet_string(EVP_PKEY_CTX *ctx, int fallback,
996 const char *param, int op, int ctrl,
997 const unsigned char *data,
998 int datalen)
999{
1000 OSSL_PARAM octet_string_params[2], *p = octet_string_params;
1001
1002 if (ctx == NULL || (ctx->operation & op) == 0) {
1003 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1004 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
1005 return -2;
1006 }
1007
1008 /* Code below to be removed when legacy support is dropped. */
1009 if (fallback)
1010 return EVP_PKEY_CTX_ctrl(ctx, -1, op, ctrl, datalen, (void *)(data));
1011 /* end of legacy support */
1012
1013 if (datalen < 0) {
1014 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_LENGTH);
1015 return 0;
1016 }
1017
1018 *p++ = OSSL_PARAM_construct_octet_string(param,
1019 /*
1020 * Cast away the const. This is read
1021 * only so should be safe
1022 */
1023 (unsigned char *)data,
1024 (size_t)datalen);
1025 *p = OSSL_PARAM_construct_end();
1026
1027 return EVP_PKEY_CTX_set_params(ctx, octet_string_params);
1028}
1029
1030int EVP_PKEY_CTX_set1_tls1_prf_secret(EVP_PKEY_CTX *ctx,
1031 const unsigned char *sec, int seclen)
1032{
1033 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
1034 OSSL_KDF_PARAM_SECRET,
1035 EVP_PKEY_OP_DERIVE,
1036 EVP_PKEY_CTRL_TLS_SECRET,
1037 sec, seclen);
1038}
1039
1040int EVP_PKEY_CTX_add1_tls1_prf_seed(EVP_PKEY_CTX *ctx,
1041 const unsigned char *seed, int seedlen)
1042{
1043 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
1044 OSSL_KDF_PARAM_SEED,
1045 EVP_PKEY_OP_DERIVE,
1046 EVP_PKEY_CTRL_TLS_SEED,
1047 seed, seedlen);
1048}
1049
1050int EVP_PKEY_CTX_set_hkdf_md(EVP_PKEY_CTX *ctx, const EVP_MD *md)
1051{
1052 return evp_pkey_ctx_set_md(ctx, md, ctx->op.kex.algctx == NULL,
1053 OSSL_KDF_PARAM_DIGEST,
1054 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_HKDF_MD);
1055}
1056
1057int EVP_PKEY_CTX_set1_hkdf_salt(EVP_PKEY_CTX *ctx,
1058 const unsigned char *salt, int saltlen)
1059{
1060 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
1061 OSSL_KDF_PARAM_SALT,
1062 EVP_PKEY_OP_DERIVE,
1063 EVP_PKEY_CTRL_HKDF_SALT,
1064 salt, saltlen);
1065}
1066
1067int EVP_PKEY_CTX_set1_hkdf_key(EVP_PKEY_CTX *ctx,
1068 const unsigned char *key, int keylen)
1069{
1070 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
1071 OSSL_KDF_PARAM_KEY,
1072 EVP_PKEY_OP_DERIVE,
1073 EVP_PKEY_CTRL_HKDF_KEY,
1074 key, keylen);
1075}
1076
1077int EVP_PKEY_CTX_add1_hkdf_info(EVP_PKEY_CTX *ctx,
1078 const unsigned char *info, int infolen)
1079{
1080 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
1081 OSSL_KDF_PARAM_INFO,
1082 EVP_PKEY_OP_DERIVE,
1083 EVP_PKEY_CTRL_HKDF_INFO,
1084 info, infolen);
1085}
1086
1087int EVP_PKEY_CTX_set_hkdf_mode(EVP_PKEY_CTX *ctx, int mode)
1088{
1089 OSSL_PARAM int_params[2], *p = int_params;
1090
1091 if (ctx == NULL || !EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
1092 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1093 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
1094 return -2;
1095 }
1096
1097 /* Code below to be removed when legacy support is dropped. */
1098 if (ctx->op.kex.algctx == NULL)
1099 return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_DERIVE,
1100 EVP_PKEY_CTRL_HKDF_MODE, mode, NULL);
1101 /* end of legacy support */
1102
1103 if (mode < 0) {
1104 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_VALUE);
1105 return 0;
1106 }
1107
1108 *p++ = OSSL_PARAM_construct_int(OSSL_KDF_PARAM_MODE, &mode);
1109 *p = OSSL_PARAM_construct_end();
1110
1111 return EVP_PKEY_CTX_set_params(ctx, int_params);
1112}
1113
1114int EVP_PKEY_CTX_set1_pbe_pass(EVP_PKEY_CTX *ctx, const char *pass,
1115 int passlen)
1116{
1117 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
1118 OSSL_KDF_PARAM_PASSWORD,
1119 EVP_PKEY_OP_DERIVE,
1120 EVP_PKEY_CTRL_PASS,
1121 (const unsigned char *)pass, passlen);
1122}
1123
1124int EVP_PKEY_CTX_set1_scrypt_salt(EVP_PKEY_CTX *ctx,
1125 const unsigned char *salt, int saltlen)
1126{
1127 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
1128 OSSL_KDF_PARAM_SALT,
1129 EVP_PKEY_OP_DERIVE,
1130 EVP_PKEY_CTRL_SCRYPT_SALT,
1131 salt, saltlen);
1132}
1133
1134static int evp_pkey_ctx_set_uint64(EVP_PKEY_CTX *ctx, const char *param,
1135 int op, int ctrl, uint64_t val)
1136{
1137 OSSL_PARAM uint64_params[2], *p = uint64_params;
1138
1139 if (ctx == NULL || !EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
1140 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1141 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
1142 return -2;
1143 }
1144
1145 /* Code below to be removed when legacy support is dropped. */
1146 if (ctx->op.kex.algctx == NULL)
1147 return EVP_PKEY_CTX_ctrl_uint64(ctx, -1, op, ctrl, val);
1148 /* end of legacy support */
1149
1150 *p++ = OSSL_PARAM_construct_uint64(param, &val);
1151 *p = OSSL_PARAM_construct_end();
1152
1153 return EVP_PKEY_CTX_set_params(ctx, uint64_params);
1154}
1155
1156int EVP_PKEY_CTX_set_scrypt_N(EVP_PKEY_CTX *ctx, uint64_t n)
1157{
1158 return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_N,
1159 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_SCRYPT_N,
1160 n);
1161}
1162
1163int EVP_PKEY_CTX_set_scrypt_r(EVP_PKEY_CTX *ctx, uint64_t r)
1164{
1165 return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_R,
1166 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_SCRYPT_R,
1167 r);
1168}
1169
1170int EVP_PKEY_CTX_set_scrypt_p(EVP_PKEY_CTX *ctx, uint64_t p)
1171{
1172 return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_P,
1173 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_SCRYPT_P,
1174 p);
1175}
1176
1177int EVP_PKEY_CTX_set_scrypt_maxmem_bytes(EVP_PKEY_CTX *ctx,
1178 uint64_t maxmem_bytes)
1179{
1180 return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_MAXMEM,
1181 EVP_PKEY_OP_DERIVE,
1182 EVP_PKEY_CTRL_SCRYPT_MAXMEM_BYTES,
1183 maxmem_bytes);
1184}
1185
1186int EVP_PKEY_CTX_set_mac_key(EVP_PKEY_CTX *ctx, const unsigned char *key,
1187 int keylen)
1188{
1189 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.keymgmt.genctx == NULL,
1190 OSSL_PKEY_PARAM_PRIV_KEY,
1191 EVP_PKEY_OP_KEYGEN,
1192 EVP_PKEY_CTRL_SET_MAC_KEY,
1193 key, keylen);
1194}
1195
1196int EVP_PKEY_CTX_set_kem_op(EVP_PKEY_CTX *ctx, const char *op)
1197{
1198 OSSL_PARAM params[2], *p = params;
1199
1200 if (ctx == NULL || op == NULL) {
1201 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_VALUE);
1202 return 0;
1203 }
1204 if (!EVP_PKEY_CTX_IS_KEM_OP(ctx)) {
1205 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1206 return -2;
1207 }
1208 *p++ = OSSL_PARAM_construct_utf8_string(OSSL_KEM_PARAM_OPERATION,
1209 (char *)op, 0);
1210 *p = OSSL_PARAM_construct_end();
1211 return EVP_PKEY_CTX_set_params(ctx, params);
1212}
1213
1214int evp_pkey_ctx_set1_id_prov(EVP_PKEY_CTX *ctx, const void *id, int len)
1215{
1216 OSSL_PARAM params[2], *p = params;
1217 int ret;
1218
1219 if (!EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
1220 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1221 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
1222 return -2;
1223 }
1224
1225 *p++ = OSSL_PARAM_construct_octet_string(OSSL_PKEY_PARAM_DIST_ID,
1226 /*
1227 * Cast away the const. This is
1228 * read only so should be safe
1229 */
1230 (void *)id, (size_t)len);
1231 *p++ = OSSL_PARAM_construct_end();
1232
1233 ret = evp_pkey_ctx_set_params_strict(ctx, params);
1234 if (ret == -2)
1235 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1236 return ret;
1237}
1238
1239int EVP_PKEY_CTX_set1_id(EVP_PKEY_CTX *ctx, const void *id, int len)
1240{
1241 return EVP_PKEY_CTX_ctrl(ctx, -1, -1,
1242 EVP_PKEY_CTRL_SET1_ID, (int)len, (void*)(id));
1243}
1244
1245static int get1_id_data(EVP_PKEY_CTX *ctx, void *id, size_t *id_len)
1246{
1247 int ret;
1248 void *tmp_id = NULL;
1249 OSSL_PARAM params[2], *p = params;
1250
1251 if (!EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
1252 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1253 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
1254 return -2;
1255 }
1256
1257 *p++ = OSSL_PARAM_construct_octet_ptr(OSSL_PKEY_PARAM_DIST_ID,
1258 &tmp_id, 0);
1259 *p++ = OSSL_PARAM_construct_end();
1260
1261 ret = evp_pkey_ctx_get_params_strict(ctx, params);
1262 if (ret == -2) {
1263 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1264 } else if (ret > 0) {
1265 size_t tmp_id_len = params[0].return_size;
1266
1267 if (id != NULL)
1268 memcpy(id, tmp_id, tmp_id_len);
1269 if (id_len != NULL)
1270 *id_len = tmp_id_len;
1271 }
1272 return ret;
1273}
1274
1275int evp_pkey_ctx_get1_id_prov(EVP_PKEY_CTX *ctx, void *id)
1276{
1277 return get1_id_data(ctx, id, NULL);
1278}
1279
1280int evp_pkey_ctx_get1_id_len_prov(EVP_PKEY_CTX *ctx, size_t *id_len)
1281{
1282 return get1_id_data(ctx, NULL, id_len);
1283}
1284
1285int EVP_PKEY_CTX_get1_id(EVP_PKEY_CTX *ctx, void *id)
1286{
1287 return EVP_PKEY_CTX_ctrl(ctx, -1, -1, EVP_PKEY_CTRL_GET1_ID, 0, (void*)id);
1288}
1289
1290int EVP_PKEY_CTX_get1_id_len(EVP_PKEY_CTX *ctx, size_t *id_len)
1291{
1292 return EVP_PKEY_CTX_ctrl(ctx, -1, -1,
1293 EVP_PKEY_CTRL_GET1_ID_LEN, 0, (void*)id_len);
1294}
1295
1296static int evp_pkey_ctx_ctrl_int(EVP_PKEY_CTX *ctx, int keytype, int optype,
1297 int cmd, int p1, void *p2)
1298{
1299 int ret = 0;
1300
1301 /*
1302 * If the method has a |digest_custom| function, we can relax the
1303 * operation type check, since this can be called before the operation
1304 * is initialized.
1305 */
1306 if (ctx->pmeth == NULL || ctx->pmeth->digest_custom == NULL) {
1307 if (ctx->operation == EVP_PKEY_OP_UNDEFINED) {
1308 ERR_raise(ERR_LIB_EVP, EVP_R_NO_OPERATION_SET);
1309 return -1;
1310 }
1311
1312 if ((optype != -1) && !(ctx->operation & optype)) {
1313 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION);
1314 return -1;
1315 }
1316 }
1317
1318 switch (evp_pkey_ctx_state(ctx)) {
1319 case EVP_PKEY_STATE_PROVIDER:
1320 return evp_pkey_ctx_ctrl_to_param(ctx, keytype, optype, cmd, p1, p2);
1321 case EVP_PKEY_STATE_UNKNOWN:
1322 case EVP_PKEY_STATE_LEGACY:
1323 if (ctx->pmeth == NULL || ctx->pmeth->ctrl == NULL) {
1324 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1325 return -2;
1326 }
1327 if ((keytype != -1) && (ctx->pmeth->pkey_id != keytype))
1328 return -1;
1329
1330 ret = ctx->pmeth->ctrl(ctx, cmd, p1, p2);
1331
1332 if (ret == -2)
1333 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1334 break;
1335 }
1336 return ret;
1337}
1338
1339int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype,
1340 int cmd, int p1, void *p2)
1341{
1342 int ret = 0;
1343
1344 if (ctx == NULL) {
1345 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1346 return -2;
1347 }
1348 /* If unsupported, we don't want that reported here */
1349 ERR_set_mark();
1350 ret = evp_pkey_ctx_store_cached_data(ctx, keytype, optype,
1351 cmd, NULL, p2, p1);
1352 if (ret == -2) {
1353 ERR_pop_to_mark();
1354 } else {
1355 ERR_clear_last_mark();
1356 /*
1357 * If there was an error, there was an error.
1358 * If the operation isn't initialized yet, we also return, as
1359 * the saved values will be used then anyway.
1360 */
1361 if (ret < 1 || ctx->operation == EVP_PKEY_OP_UNDEFINED)
1362 return ret;
1363 }
1364 return evp_pkey_ctx_ctrl_int(ctx, keytype, optype, cmd, p1, p2);
1365}
1366
1367int EVP_PKEY_CTX_ctrl_uint64(EVP_PKEY_CTX *ctx, int keytype, int optype,
1368 int cmd, uint64_t value)
1369{
1370 return EVP_PKEY_CTX_ctrl(ctx, keytype, optype, cmd, 0, &value);
1371}
1372
1373
1374static int evp_pkey_ctx_ctrl_str_int(EVP_PKEY_CTX *ctx,
1375 const char *name, const char *value)
1376{
1377 int ret = 0;
1378
1379 if (ctx == NULL) {
1380 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1381 return -2;
1382 }
1383
1384 switch (evp_pkey_ctx_state(ctx)) {
1385 case EVP_PKEY_STATE_PROVIDER:
1386 return evp_pkey_ctx_ctrl_str_to_param(ctx, name, value);
1387 case EVP_PKEY_STATE_UNKNOWN:
1388 case EVP_PKEY_STATE_LEGACY:
1389 if (ctx == NULL || ctx->pmeth == NULL || ctx->pmeth->ctrl_str == NULL) {
1390 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1391 return -2;
1392 }
1393 if (strcmp(name, "digest") == 0)
1394 ret = EVP_PKEY_CTX_md(ctx,
1395 EVP_PKEY_OP_TYPE_SIG | EVP_PKEY_OP_TYPE_CRYPT,
1396 EVP_PKEY_CTRL_MD, value);
1397 else
1398 ret = ctx->pmeth->ctrl_str(ctx, name, value);
1399 break;
1400 }
1401
1402 return ret;
1403}
1404
1405int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX *ctx,
1406 const char *name, const char *value)
1407{
1408 int ret = 0;
1409
1410 /* If unsupported, we don't want that reported here */
1411 ERR_set_mark();
1412 ret = evp_pkey_ctx_store_cached_data(ctx, -1, -1, -1,
1413 name, value, strlen(value) + 1);
1414 if (ret == -2) {
1415 ERR_pop_to_mark();
1416 } else {
1417 ERR_clear_last_mark();
1418 /*
1419 * If there was an error, there was an error.
1420 * If the operation isn't initialized yet, we also return, as
1421 * the saved values will be used then anyway.
1422 */
1423 if (ret < 1 || ctx->operation == EVP_PKEY_OP_UNDEFINED)
1424 return ret;
1425 }
1426
1427 return evp_pkey_ctx_ctrl_str_int(ctx, name, value);
1428}
1429
1430static int decode_cmd(int cmd, const char *name)
1431{
1432 if (cmd == -1) {
1433 /*
1434 * The consequence of the assertion not being true is that this
1435 * function will return -1, which will cause the calling functions
1436 * to signal that the command is unsupported... in non-debug mode.
1437 */
1438 if (ossl_assert(name != NULL))
1439 if (strcmp(name, "distid") == 0 || strcmp(name, "hexdistid") == 0)
1440 cmd = EVP_PKEY_CTRL_SET1_ID;
1441 }
1442
1443 return cmd;
1444}
1445
1446static int evp_pkey_ctx_store_cached_data(EVP_PKEY_CTX *ctx,
1447 int keytype, int optype,
1448 int cmd, const char *name,
1449 const void *data, size_t data_len)
1450{
1451 /*
1452 * Check that it's one of the supported commands. The ctrl commands
1453 * number cases here must correspond to the cases in the bottom switch
1454 * in this function.
1455 */
1456 switch (cmd = decode_cmd(cmd, name)) {
1457 case EVP_PKEY_CTRL_SET1_ID:
1458 break;
1459 default:
1460 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1461 return -2;
1462 }
1463
1464 if (keytype != -1) {
1465 switch (evp_pkey_ctx_state(ctx)) {
1466 case EVP_PKEY_STATE_PROVIDER:
1467 if (ctx->keymgmt == NULL) {
1468 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1469 return -2;
1470 }
1471 if (!EVP_KEYMGMT_is_a(ctx->keymgmt,
1472 evp_pkey_type2name(keytype))) {
1473 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION);
1474 return -1;
1475 }
1476 break;
1477 case EVP_PKEY_STATE_UNKNOWN:
1478 case EVP_PKEY_STATE_LEGACY:
1479 if (ctx->pmeth == NULL) {
1480 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1481 return -2;
1482 }
1483 if (EVP_PKEY_type(ctx->pmeth->pkey_id) != EVP_PKEY_type(keytype)) {
1484 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION);
1485 return -1;
1486 }
1487 break;
1488 }
1489 }
1490 if (optype != -1 && (ctx->operation & optype) == 0) {
1491 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION);
1492 return -1;
1493 }
1494
1495 switch (cmd) {
1496 case EVP_PKEY_CTRL_SET1_ID:
1497 evp_pkey_ctx_free_cached_data(ctx, cmd, name);
1498 if (name != NULL) {
1499 ctx->cached_parameters.dist_id_name = OPENSSL_strdup(name);
1500 if (ctx->cached_parameters.dist_id_name == NULL) {
1501 ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
1502 return 0;
1503 }
1504 }
1505 if (data_len > 0) {
1506 ctx->cached_parameters.dist_id = OPENSSL_memdup(data, data_len);
1507 if (ctx->cached_parameters.dist_id == NULL) {
1508 ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
1509 return 0;
1510 }
1511 }
1512 ctx->cached_parameters.dist_id_set = 1;
1513 ctx->cached_parameters.dist_id_len = data_len;
1514 break;
1515 }
1516 return 1;
1517}
1518
1519static void evp_pkey_ctx_free_cached_data(EVP_PKEY_CTX *ctx,
1520 int cmd, const char *name)
1521{
1522 cmd = decode_cmd(cmd, name);
1523 switch (cmd) {
1524 case EVP_PKEY_CTRL_SET1_ID:
1525 OPENSSL_free(ctx->cached_parameters.dist_id);
1526 OPENSSL_free(ctx->cached_parameters.dist_id_name);
1527 ctx->cached_parameters.dist_id = NULL;
1528 ctx->cached_parameters.dist_id_name = NULL;
1529 break;
1530 }
1531}
1532
1533static void evp_pkey_ctx_free_all_cached_data(EVP_PKEY_CTX *ctx)
1534{
1535 evp_pkey_ctx_free_cached_data(ctx, EVP_PKEY_CTRL_SET1_ID, NULL);
1536}
1537
1538int evp_pkey_ctx_use_cached_data(EVP_PKEY_CTX *ctx)
1539{
1540 int ret = 1;
1541
1542 if (ret && ctx->cached_parameters.dist_id_set) {
1543 const char *name = ctx->cached_parameters.dist_id_name;
1544 const void *val = ctx->cached_parameters.dist_id;
1545 size_t len = ctx->cached_parameters.dist_id_len;
1546
1547 if (name != NULL)
1548 ret = evp_pkey_ctx_ctrl_str_int(ctx, name, val);
1549 else
1550 ret = evp_pkey_ctx_ctrl_int(ctx, -1, ctx->operation,
1551 EVP_PKEY_CTRL_SET1_ID,
1552 (int)len, (void *)val);
1553 }
1554
1555 return ret;
1556}
1557
1558OSSL_LIB_CTX *EVP_PKEY_CTX_get0_libctx(EVP_PKEY_CTX *ctx)
1559{
1560 return ctx->libctx;
1561}
1562
1563const char *EVP_PKEY_CTX_get0_propq(const EVP_PKEY_CTX *ctx)
1564{
1565 return ctx->propquery;
1566}
1567
1568const OSSL_PROVIDER *EVP_PKEY_CTX_get0_provider(const EVP_PKEY_CTX *ctx)
1569{
1570 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
1571 if (ctx->op.sig.signature != NULL)
1572 return EVP_SIGNATURE_get0_provider(ctx->op.sig.signature);
1573 } else if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
1574 if (ctx->op.kex.exchange != NULL)
1575 return EVP_KEYEXCH_get0_provider(ctx->op.kex.exchange);
1576 } else if (EVP_PKEY_CTX_IS_KEM_OP(ctx)) {
1577 if (ctx->op.encap.kem != NULL)
1578 return EVP_KEM_get0_provider(ctx->op.encap.kem);
1579 } else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)) {
1580 if (ctx->op.ciph.cipher != NULL)
1581 return EVP_ASYM_CIPHER_get0_provider(ctx->op.ciph.cipher);
1582 } else if (EVP_PKEY_CTX_IS_GEN_OP(ctx)) {
1583 if (ctx->keymgmt != NULL)
1584 return EVP_KEYMGMT_get0_provider(ctx->keymgmt);
1585 }
1586
1587 return NULL;
1588}
1589
1590/* Utility functions to send a string of hex string to a ctrl */
1591
1592int EVP_PKEY_CTX_str2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *str)
1593{
1594 size_t len;
1595
1596 len = strlen(str);
1597 if (len > INT_MAX)
1598 return -1;
1599 return ctx->pmeth->ctrl(ctx, cmd, len, (void *)str);
1600}
1601
1602int EVP_PKEY_CTX_hex2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *hex)
1603{
1604 unsigned char *bin;
1605 long binlen;
1606 int rv = -1;
1607
1608 bin = OPENSSL_hexstr2buf(hex, &binlen);
1609 if (bin == NULL)
1610 return 0;
1611 if (binlen <= INT_MAX)
1612 rv = ctx->pmeth->ctrl(ctx, cmd, binlen, bin);
1613 OPENSSL_free(bin);
1614 return rv;
1615}
1616
1617/* Pass a message digest to a ctrl */
1618int EVP_PKEY_CTX_md(EVP_PKEY_CTX *ctx, int optype, int cmd, const char *md)
1619{
1620 const EVP_MD *m;
1621
1622 if (md == NULL || (m = EVP_get_digestbyname(md)) == NULL) {
1623 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_DIGEST);
1624 return 0;
1625 }
1626 return EVP_PKEY_CTX_ctrl(ctx, -1, optype, cmd, 0, (void *)m);
1627}
1628
1629int EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX *ctx)
1630{
1631 return ctx->operation;
1632}
1633
1634void EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX *ctx, int *dat, int datlen)
1635{
1636 ctx->keygen_info = dat;
1637 ctx->keygen_info_count = datlen;
1638}
1639
1640void EVP_PKEY_CTX_set_data(EVP_PKEY_CTX *ctx, void *data)
1641{
1642 ctx->data = data;
1643}
1644
1645void *EVP_PKEY_CTX_get_data(const EVP_PKEY_CTX *ctx)
1646{
1647 return ctx->data;
1648}
1649
1650EVP_PKEY *EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX *ctx)
1651{
1652 return ctx->pkey;
1653}
1654
1655EVP_PKEY *EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX *ctx)
1656{
1657 return ctx->peerkey;
1658}
1659
1660void EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX *ctx, void *data)
1661{
1662 ctx->app_data = data;
1663}
1664
1665void *EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX *ctx)
1666{
1667 return ctx->app_data;
1668}
1669
1670void EVP_PKEY_meth_set_init(EVP_PKEY_METHOD *pmeth,
1671 int (*init) (EVP_PKEY_CTX *ctx))
1672{
1673 pmeth->init = init;
1674}
1675
1676void EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD *pmeth,
1677 int (*copy) (EVP_PKEY_CTX *dst,
1678 const EVP_PKEY_CTX *src))
1679{
1680 pmeth->copy = copy;
1681}
1682
1683void EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD *pmeth,
1684 void (*cleanup) (EVP_PKEY_CTX *ctx))
1685{
1686 pmeth->cleanup = cleanup;
1687}
1688
1689void EVP_PKEY_meth_set_paramgen(EVP_PKEY_METHOD *pmeth,
1690 int (*paramgen_init) (EVP_PKEY_CTX *ctx),
1691 int (*paramgen) (EVP_PKEY_CTX *ctx,
1692 EVP_PKEY *pkey))
1693{
1694 pmeth->paramgen_init = paramgen_init;
1695 pmeth->paramgen = paramgen;
1696}
1697
1698void EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD *pmeth,
1699 int (*keygen_init) (EVP_PKEY_CTX *ctx),
1700 int (*keygen) (EVP_PKEY_CTX *ctx,
1701 EVP_PKEY *pkey))
1702{
1703 pmeth->keygen_init = keygen_init;
1704 pmeth->keygen = keygen;
1705}
1706
1707void EVP_PKEY_meth_set_sign(EVP_PKEY_METHOD *pmeth,
1708 int (*sign_init) (EVP_PKEY_CTX *ctx),
1709 int (*sign) (EVP_PKEY_CTX *ctx,
1710 unsigned char *sig, size_t *siglen,
1711 const unsigned char *tbs,
1712 size_t tbslen))
1713{
1714 pmeth->sign_init = sign_init;
1715 pmeth->sign = sign;
1716}
1717
1718void EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD *pmeth,
1719 int (*verify_init) (EVP_PKEY_CTX *ctx),
1720 int (*verify) (EVP_PKEY_CTX *ctx,
1721 const unsigned char *sig,
1722 size_t siglen,
1723 const unsigned char *tbs,
1724 size_t tbslen))
1725{
1726 pmeth->verify_init = verify_init;
1727 pmeth->verify = verify;
1728}
1729
1730void EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD *pmeth,
1731 int (*verify_recover_init) (EVP_PKEY_CTX
1732 *ctx),
1733 int (*verify_recover) (EVP_PKEY_CTX
1734 *ctx,
1735 unsigned char
1736 *sig,
1737 size_t *siglen,
1738 const unsigned
1739 char *tbs,
1740 size_t tbslen))
1741{
1742 pmeth->verify_recover_init = verify_recover_init;
1743 pmeth->verify_recover = verify_recover;
1744}
1745
1746void EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD *pmeth,
1747 int (*signctx_init) (EVP_PKEY_CTX *ctx,
1748 EVP_MD_CTX *mctx),
1749 int (*signctx) (EVP_PKEY_CTX *ctx,
1750 unsigned char *sig,
1751 size_t *siglen,
1752 EVP_MD_CTX *mctx))
1753{
1754 pmeth->signctx_init = signctx_init;
1755 pmeth->signctx = signctx;
1756}
1757
1758void EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD *pmeth,
1759 int (*verifyctx_init) (EVP_PKEY_CTX *ctx,
1760 EVP_MD_CTX *mctx),
1761 int (*verifyctx) (EVP_PKEY_CTX *ctx,
1762 const unsigned char *sig,
1763 int siglen,
1764 EVP_MD_CTX *mctx))
1765{
1766 pmeth->verifyctx_init = verifyctx_init;
1767 pmeth->verifyctx = verifyctx;
1768}
1769
1770void EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD *pmeth,
1771 int (*encrypt_init) (EVP_PKEY_CTX *ctx),
1772 int (*encryptfn) (EVP_PKEY_CTX *ctx,
1773 unsigned char *out,
1774 size_t *outlen,
1775 const unsigned char *in,
1776 size_t inlen))
1777{
1778 pmeth->encrypt_init = encrypt_init;
1779 pmeth->encrypt = encryptfn;
1780}
1781
1782void EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD *pmeth,
1783 int (*decrypt_init) (EVP_PKEY_CTX *ctx),
1784 int (*decrypt) (EVP_PKEY_CTX *ctx,
1785 unsigned char *out,
1786 size_t *outlen,
1787 const unsigned char *in,
1788 size_t inlen))
1789{
1790 pmeth->decrypt_init = decrypt_init;
1791 pmeth->decrypt = decrypt;
1792}
1793
1794void EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD *pmeth,
1795 int (*derive_init) (EVP_PKEY_CTX *ctx),
1796 int (*derive) (EVP_PKEY_CTX *ctx,
1797 unsigned char *key,
1798 size_t *keylen))
1799{
1800 pmeth->derive_init = derive_init;
1801 pmeth->derive = derive;
1802}
1803
1804void EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD *pmeth,
1805 int (*ctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
1806 void *p2),
1807 int (*ctrl_str) (EVP_PKEY_CTX *ctx,
1808 const char *type,
1809 const char *value))
1810{
1811 pmeth->ctrl = ctrl;
1812 pmeth->ctrl_str = ctrl_str;
1813}
1814
1815void EVP_PKEY_meth_set_digestsign(EVP_PKEY_METHOD *pmeth,
1816 int (*digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen,
1817 const unsigned char *tbs, size_t tbslen))
1818{
1819 pmeth->digestsign = digestsign;
1820}
1821
1822void EVP_PKEY_meth_set_digestverify(EVP_PKEY_METHOD *pmeth,
1823 int (*digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig,
1824 size_t siglen, const unsigned char *tbs,
1825 size_t tbslen))
1826{
1827 pmeth->digestverify = digestverify;
1828}
1829
1830void EVP_PKEY_meth_set_check(EVP_PKEY_METHOD *pmeth,
1831 int (*check) (EVP_PKEY *pkey))
1832{
1833 pmeth->check = check;
1834}
1835
1836void EVP_PKEY_meth_set_public_check(EVP_PKEY_METHOD *pmeth,
1837 int (*check) (EVP_PKEY *pkey))
1838{
1839 pmeth->public_check = check;
1840}
1841
1842void EVP_PKEY_meth_set_param_check(EVP_PKEY_METHOD *pmeth,
1843 int (*check) (EVP_PKEY *pkey))
1844{
1845 pmeth->param_check = check;
1846}
1847
1848void EVP_PKEY_meth_set_digest_custom(EVP_PKEY_METHOD *pmeth,
1849 int (*digest_custom) (EVP_PKEY_CTX *ctx,
1850 EVP_MD_CTX *mctx))
1851{
1852 pmeth->digest_custom = digest_custom;
1853}
1854
1855void EVP_PKEY_meth_get_init(const EVP_PKEY_METHOD *pmeth,
1856 int (**pinit) (EVP_PKEY_CTX *ctx))
1857{
1858 *pinit = pmeth->init;
1859}
1860
1861void EVP_PKEY_meth_get_copy(const EVP_PKEY_METHOD *pmeth,
1862 int (**pcopy) (EVP_PKEY_CTX *dst,
1863 const EVP_PKEY_CTX *src))
1864{
1865 *pcopy = pmeth->copy;
1866}
1867
1868void EVP_PKEY_meth_get_cleanup(const EVP_PKEY_METHOD *pmeth,
1869 void (**pcleanup) (EVP_PKEY_CTX *ctx))
1870{
1871 *pcleanup = pmeth->cleanup;
1872}
1873
1874void EVP_PKEY_meth_get_paramgen(const EVP_PKEY_METHOD *pmeth,
1875 int (**pparamgen_init) (EVP_PKEY_CTX *ctx),
1876 int (**pparamgen) (EVP_PKEY_CTX *ctx,
1877 EVP_PKEY *pkey))
1878{
1879 if (pparamgen_init)
1880 *pparamgen_init = pmeth->paramgen_init;
1881 if (pparamgen)
1882 *pparamgen = pmeth->paramgen;
1883}
1884
1885void EVP_PKEY_meth_get_keygen(const EVP_PKEY_METHOD *pmeth,
1886 int (**pkeygen_init) (EVP_PKEY_CTX *ctx),
1887 int (**pkeygen) (EVP_PKEY_CTX *ctx,
1888 EVP_PKEY *pkey))
1889{
1890 if (pkeygen_init)
1891 *pkeygen_init = pmeth->keygen_init;
1892 if (pkeygen)
1893 *pkeygen = pmeth->keygen;
1894}
1895
1896void EVP_PKEY_meth_get_sign(const EVP_PKEY_METHOD *pmeth,
1897 int (**psign_init) (EVP_PKEY_CTX *ctx),
1898 int (**psign) (EVP_PKEY_CTX *ctx,
1899 unsigned char *sig, size_t *siglen,
1900 const unsigned char *tbs,
1901 size_t tbslen))
1902{
1903 if (psign_init)
1904 *psign_init = pmeth->sign_init;
1905 if (psign)
1906 *psign = pmeth->sign;
1907}
1908
1909void EVP_PKEY_meth_get_verify(const EVP_PKEY_METHOD *pmeth,
1910 int (**pverify_init) (EVP_PKEY_CTX *ctx),
1911 int (**pverify) (EVP_PKEY_CTX *ctx,
1912 const unsigned char *sig,
1913 size_t siglen,
1914 const unsigned char *tbs,
1915 size_t tbslen))
1916{
1917 if (pverify_init)
1918 *pverify_init = pmeth->verify_init;
1919 if (pverify)
1920 *pverify = pmeth->verify;
1921}
1922
1923void EVP_PKEY_meth_get_verify_recover(const EVP_PKEY_METHOD *pmeth,
1924 int (**pverify_recover_init) (EVP_PKEY_CTX
1925 *ctx),
1926 int (**pverify_recover) (EVP_PKEY_CTX
1927 *ctx,
1928 unsigned char
1929 *sig,
1930 size_t *siglen,
1931 const unsigned
1932 char *tbs,
1933 size_t tbslen))
1934{
1935 if (pverify_recover_init)
1936 *pverify_recover_init = pmeth->verify_recover_init;
1937 if (pverify_recover)
1938 *pverify_recover = pmeth->verify_recover;
1939}
1940
1941void EVP_PKEY_meth_get_signctx(const EVP_PKEY_METHOD *pmeth,
1942 int (**psignctx_init) (EVP_PKEY_CTX *ctx,
1943 EVP_MD_CTX *mctx),
1944 int (**psignctx) (EVP_PKEY_CTX *ctx,
1945 unsigned char *sig,
1946 size_t *siglen,
1947 EVP_MD_CTX *mctx))
1948{
1949 if (psignctx_init)
1950 *psignctx_init = pmeth->signctx_init;
1951 if (psignctx)
1952 *psignctx = pmeth->signctx;
1953}
1954
1955void EVP_PKEY_meth_get_verifyctx(const EVP_PKEY_METHOD *pmeth,
1956 int (**pverifyctx_init) (EVP_PKEY_CTX *ctx,
1957 EVP_MD_CTX *mctx),
1958 int (**pverifyctx) (EVP_PKEY_CTX *ctx,
1959 const unsigned char *sig,
1960 int siglen,
1961 EVP_MD_CTX *mctx))
1962{
1963 if (pverifyctx_init)
1964 *pverifyctx_init = pmeth->verifyctx_init;
1965 if (pverifyctx)
1966 *pverifyctx = pmeth->verifyctx;
1967}
1968
1969void EVP_PKEY_meth_get_encrypt(const EVP_PKEY_METHOD *pmeth,
1970 int (**pencrypt_init) (EVP_PKEY_CTX *ctx),
1971 int (**pencryptfn) (EVP_PKEY_CTX *ctx,
1972 unsigned char *out,
1973 size_t *outlen,
1974 const unsigned char *in,
1975 size_t inlen))
1976{
1977 if (pencrypt_init)
1978 *pencrypt_init = pmeth->encrypt_init;
1979 if (pencryptfn)
1980 *pencryptfn = pmeth->encrypt;
1981}
1982
1983void EVP_PKEY_meth_get_decrypt(const EVP_PKEY_METHOD *pmeth,
1984 int (**pdecrypt_init) (EVP_PKEY_CTX *ctx),
1985 int (**pdecrypt) (EVP_PKEY_CTX *ctx,
1986 unsigned char *out,
1987 size_t *outlen,
1988 const unsigned char *in,
1989 size_t inlen))
1990{
1991 if (pdecrypt_init)
1992 *pdecrypt_init = pmeth->decrypt_init;
1993 if (pdecrypt)
1994 *pdecrypt = pmeth->decrypt;
1995}
1996
1997void EVP_PKEY_meth_get_derive(const EVP_PKEY_METHOD *pmeth,
1998 int (**pderive_init) (EVP_PKEY_CTX *ctx),
1999 int (**pderive) (EVP_PKEY_CTX *ctx,
2000 unsigned char *key,
2001 size_t *keylen))
2002{
2003 if (pderive_init)
2004 *pderive_init = pmeth->derive_init;
2005 if (pderive)
2006 *pderive = pmeth->derive;
2007}
2008
2009void EVP_PKEY_meth_get_ctrl(const EVP_PKEY_METHOD *pmeth,
2010 int (**pctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
2011 void *p2),
2012 int (**pctrl_str) (EVP_PKEY_CTX *ctx,
2013 const char *type,
2014 const char *value))
2015{
2016 if (pctrl)
2017 *pctrl = pmeth->ctrl;
2018 if (pctrl_str)
2019 *pctrl_str = pmeth->ctrl_str;
2020}
2021
2022void EVP_PKEY_meth_get_digestsign(const EVP_PKEY_METHOD *pmeth,
2023 int (**digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen,
2024 const unsigned char *tbs, size_t tbslen))
2025{
2026 if (digestsign)
2027 *digestsign = pmeth->digestsign;
2028}
2029
2030void EVP_PKEY_meth_get_digestverify(const EVP_PKEY_METHOD *pmeth,
2031 int (**digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig,
2032 size_t siglen, const unsigned char *tbs,
2033 size_t tbslen))
2034{
2035 if (digestverify)
2036 *digestverify = pmeth->digestverify;
2037}
2038
2039void EVP_PKEY_meth_get_check(const EVP_PKEY_METHOD *pmeth,
2040 int (**pcheck) (EVP_PKEY *pkey))
2041{
2042 if (pcheck != NULL)
2043 *pcheck = pmeth->check;
2044}
2045
2046void EVP_PKEY_meth_get_public_check(const EVP_PKEY_METHOD *pmeth,
2047 int (**pcheck) (EVP_PKEY *pkey))
2048{
2049 if (pcheck != NULL)
2050 *pcheck = pmeth->public_check;
2051}
2052
2053void EVP_PKEY_meth_get_param_check(const EVP_PKEY_METHOD *pmeth,
2054 int (**pcheck) (EVP_PKEY *pkey))
2055{
2056 if (pcheck != NULL)
2057 *pcheck = pmeth->param_check;
2058}
2059
2060void EVP_PKEY_meth_get_digest_custom(const EVP_PKEY_METHOD *pmeth,
2061 int (**pdigest_custom) (EVP_PKEY_CTX *ctx,
2062 EVP_MD_CTX *mctx))
2063{
2064 if (pdigest_custom != NULL)
2065 *pdigest_custom = pmeth->digest_custom;
2066}
2067
2068#endif /* FIPS_MODULE */
Note: See TracBrowser for help on using the repository browser.

© 2024 Oracle Support Privacy / Do Not Sell My Info Terms of Use Trademark Policy Automated Access Etiquette