1 /*
2 * Copyright 2006-2025 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
40 static 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);
44 static void evp_pkey_ctx_free_cached_data(EVP_PKEY_CTX *ctx,
45 int cmd, const char *name);
46 static void evp_pkey_ctx_free_all_cached_data(EVP_PKEY_CTX *ctx);
47
48 typedef const EVP_PKEY_METHOD *(*pmeth_fn)(void);
49 typedef int sk_cmp_fn_type(const char *const *a, const char *const *b);
50
51 static STACK_OF(EVP_PKEY_METHOD) *app_pkey_methods = NULL;
52
53 /* This array needs to be in order of NIDs */
54 static 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
77 DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, pmeth_fn, pmeth_func);
78
pmeth_func_cmp(const EVP_PKEY_METHOD * const * a,pmeth_fn const * b)79 static 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
84 IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, pmeth_fn, pmeth_func);
85
pmeth_cmp(const EVP_PKEY_METHOD * const * a,const EVP_PKEY_METHOD * const * b)86 static 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
evp_pkey_meth_find_added_by_application(int type)92 static 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
EVP_PKEY_meth_find(int type)106 const 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
EVP_PKEY_meth_new(int id,int flags)124 EVP_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
evp_pkey_ctx_state(const EVP_PKEY_CTX * ctx)138 int 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
int_ctx_new(OSSL_LIB_CTX * libctx,EVP_PKEY * pkey,ENGINE * e,const char * keytype,const char * propquery,int id)158 static 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
325 if (pkey != NULL && !EVP_PKEY_up_ref(pkey)) {
326 EVP_PKEY_CTX_free(ret);
327 return NULL;
328 }
329
330 ret->pkey = pkey;
331
332 if (pmeth != NULL && pmeth->init != NULL) {
333 if (pmeth->init(ret) <= 0) {
334 ret->pmeth = NULL;
335 EVP_PKEY_CTX_free(ret);
336 return NULL;
337 }
338 }
339
340 return ret;
341 }
342
343 /*- All methods below can also be used in FIPS_MODULE */
344
EVP_PKEY_CTX_new_from_name(OSSL_LIB_CTX * libctx,const char * name,const char * propquery)345 EVP_PKEY_CTX *EVP_PKEY_CTX_new_from_name(OSSL_LIB_CTX *libctx,
346 const char *name,
347 const char *propquery)
348 {
349 return int_ctx_new(libctx, NULL, NULL, name, propquery, -1);
350 }
351
EVP_PKEY_CTX_new_from_pkey(OSSL_LIB_CTX * libctx,EVP_PKEY * pkey,const char * propquery)352 EVP_PKEY_CTX *EVP_PKEY_CTX_new_from_pkey(OSSL_LIB_CTX *libctx, EVP_PKEY *pkey,
353 const char *propquery)
354 {
355 return int_ctx_new(libctx, pkey, NULL, NULL, propquery, -1);
356 }
357
evp_pkey_ctx_free_old_ops(EVP_PKEY_CTX * ctx)358 void evp_pkey_ctx_free_old_ops(EVP_PKEY_CTX *ctx)
359 {
360 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
361 if (ctx->op.sig.algctx != NULL && ctx->op.sig.signature != NULL)
362 ctx->op.sig.signature->freectx(ctx->op.sig.algctx);
363 EVP_SIGNATURE_free(ctx->op.sig.signature);
364 ctx->op.sig.algctx = NULL;
365 ctx->op.sig.signature = NULL;
366 } else if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
367 if (ctx->op.kex.algctx != NULL && ctx->op.kex.exchange != NULL)
368 ctx->op.kex.exchange->freectx(ctx->op.kex.algctx);
369 EVP_KEYEXCH_free(ctx->op.kex.exchange);
370 ctx->op.kex.algctx = NULL;
371 ctx->op.kex.exchange = NULL;
372 } else if (EVP_PKEY_CTX_IS_KEM_OP(ctx)) {
373 if (ctx->op.encap.algctx != NULL && ctx->op.encap.kem != NULL)
374 ctx->op.encap.kem->freectx(ctx->op.encap.algctx);
375 EVP_KEM_free(ctx->op.encap.kem);
376 ctx->op.encap.algctx = NULL;
377 ctx->op.encap.kem = NULL;
378 }
379 else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)) {
380 if (ctx->op.ciph.algctx != NULL && ctx->op.ciph.cipher != NULL)
381 ctx->op.ciph.cipher->freectx(ctx->op.ciph.algctx);
382 EVP_ASYM_CIPHER_free(ctx->op.ciph.cipher);
383 ctx->op.ciph.algctx = NULL;
384 ctx->op.ciph.cipher = NULL;
385 } else if (EVP_PKEY_CTX_IS_GEN_OP(ctx)) {
386 if (ctx->op.keymgmt.genctx != NULL && ctx->keymgmt != NULL)
387 evp_keymgmt_gen_cleanup(ctx->keymgmt, ctx->op.keymgmt.genctx);
388 }
389 }
390
EVP_PKEY_CTX_free(EVP_PKEY_CTX * ctx)391 void EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx)
392 {
393 if (ctx == NULL)
394 return;
395 if (ctx->pmeth && ctx->pmeth->cleanup)
396 ctx->pmeth->cleanup(ctx);
397
398 evp_pkey_ctx_free_old_ops(ctx);
399 #ifndef FIPS_MODULE
400 evp_pkey_ctx_free_all_cached_data(ctx);
401 #endif
402 EVP_KEYMGMT_free(ctx->keymgmt);
403
404 OPENSSL_free(ctx->propquery);
405 EVP_PKEY_free(ctx->pkey);
406 EVP_PKEY_free(ctx->peerkey);
407 #if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODULE)
408 ENGINE_finish(ctx->engine);
409 #endif
410 BN_free(ctx->rsa_pubexp);
411 OPENSSL_free(ctx);
412 }
413
414 #ifndef FIPS_MODULE
415
EVP_PKEY_meth_get0_info(int * ppkey_id,int * pflags,const EVP_PKEY_METHOD * meth)416 void EVP_PKEY_meth_get0_info(int *ppkey_id, int *pflags,
417 const EVP_PKEY_METHOD *meth)
418 {
419 if (ppkey_id)
420 *ppkey_id = meth->pkey_id;
421 if (pflags)
422 *pflags = meth->flags;
423 }
424
EVP_PKEY_meth_copy(EVP_PKEY_METHOD * dst,const EVP_PKEY_METHOD * src)425 void EVP_PKEY_meth_copy(EVP_PKEY_METHOD *dst, const EVP_PKEY_METHOD *src)
426 {
427 int pkey_id = dst->pkey_id;
428 int flags = dst->flags;
429
430 *dst = *src;
431
432 /* We only copy the function pointers so restore the other values */
433 dst->pkey_id = pkey_id;
434 dst->flags = flags;
435 }
436
EVP_PKEY_meth_free(EVP_PKEY_METHOD * pmeth)437 void EVP_PKEY_meth_free(EVP_PKEY_METHOD *pmeth)
438 {
439 if (pmeth && (pmeth->flags & EVP_PKEY_FLAG_DYNAMIC))
440 OPENSSL_free(pmeth);
441 }
442
EVP_PKEY_CTX_new(EVP_PKEY * pkey,ENGINE * e)443 EVP_PKEY_CTX *EVP_PKEY_CTX_new(EVP_PKEY *pkey, ENGINE *e)
444 {
445 return int_ctx_new(NULL, pkey, e, NULL, NULL, -1);
446 }
447
EVP_PKEY_CTX_new_id(int id,ENGINE * e)448 EVP_PKEY_CTX *EVP_PKEY_CTX_new_id(int id, ENGINE *e)
449 {
450 return int_ctx_new(NULL, NULL, e, NULL, NULL, id);
451 }
452
EVP_PKEY_CTX_dup(const EVP_PKEY_CTX * pctx)453 EVP_PKEY_CTX *EVP_PKEY_CTX_dup(const EVP_PKEY_CTX *pctx)
454 {
455 EVP_PKEY_CTX *rctx;
456
457 # ifndef OPENSSL_NO_ENGINE
458 /* Make sure it's safe to copy a pkey context using an ENGINE */
459 if (pctx->engine && !ENGINE_init(pctx->engine)) {
460 ERR_raise(ERR_LIB_EVP, ERR_R_ENGINE_LIB);
461 return 0;
462 }
463 # endif
464 rctx = OPENSSL_zalloc(sizeof(*rctx));
465 if (rctx == NULL)
466 return NULL;
467
468 if (pctx->pkey != NULL && !EVP_PKEY_up_ref(pctx->pkey))
469 goto err;
470
471 rctx->pkey = pctx->pkey;
472 rctx->operation = pctx->operation;
473 rctx->libctx = pctx->libctx;
474 rctx->keytype = pctx->keytype;
475 rctx->propquery = NULL;
476 if (pctx->propquery != NULL) {
477 rctx->propquery = OPENSSL_strdup(pctx->propquery);
478 if (rctx->propquery == NULL)
479 goto err;
480 }
481 rctx->legacy_keytype = pctx->legacy_keytype;
482
483 if (pctx->keymgmt != NULL) {
484 if (!EVP_KEYMGMT_up_ref(pctx->keymgmt))
485 goto err;
486 rctx->keymgmt = pctx->keymgmt;
487 }
488
489 if (EVP_PKEY_CTX_IS_DERIVE_OP(pctx)) {
490 if (pctx->op.kex.exchange != NULL) {
491 rctx->op.kex.exchange = pctx->op.kex.exchange;
492 if (!EVP_KEYEXCH_up_ref(rctx->op.kex.exchange))
493 goto err;
494 }
495 if (pctx->op.kex.algctx != NULL) {
496 if (!ossl_assert(pctx->op.kex.exchange != NULL))
497 goto err;
498
499 if (pctx->op.kex.exchange->dupctx != NULL)
500 rctx->op.kex.algctx
501 = pctx->op.kex.exchange->dupctx(pctx->op.kex.algctx);
502
503 if (rctx->op.kex.algctx == NULL) {
504 EVP_KEYEXCH_free(rctx->op.kex.exchange);
505 rctx->op.kex.exchange = NULL;
506 goto err;
507 }
508 return rctx;
509 }
510 } else if (EVP_PKEY_CTX_IS_SIGNATURE_OP(pctx)) {
511 if (pctx->op.sig.signature != NULL) {
512 rctx->op.sig.signature = pctx->op.sig.signature;
513 if (!EVP_SIGNATURE_up_ref(rctx->op.sig.signature))
514 goto err;
515 }
516 if (pctx->op.sig.algctx != NULL) {
517 if (!ossl_assert(pctx->op.sig.signature != NULL))
518 goto err;
519
520 if (pctx->op.sig.signature->dupctx != NULL)
521 rctx->op.sig.algctx
522 = pctx->op.sig.signature->dupctx(pctx->op.sig.algctx);
523
524 if (rctx->op.sig.algctx == NULL) {
525 EVP_SIGNATURE_free(rctx->op.sig.signature);
526 rctx->op.sig.signature = NULL;
527 goto err;
528 }
529 return rctx;
530 }
531 } else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(pctx)) {
532 if (pctx->op.ciph.cipher != NULL) {
533 rctx->op.ciph.cipher = pctx->op.ciph.cipher;
534 if (!EVP_ASYM_CIPHER_up_ref(rctx->op.ciph.cipher))
535 goto err;
536 }
537 if (pctx->op.ciph.algctx != NULL) {
538 if (!ossl_assert(pctx->op.ciph.cipher != NULL))
539 goto err;
540
541 if (pctx->op.ciph.cipher->dupctx != NULL)
542 rctx->op.ciph.algctx
543 = pctx->op.ciph.cipher->dupctx(pctx->op.ciph.algctx);
544
545 if (rctx->op.ciph.algctx == NULL) {
546 EVP_ASYM_CIPHER_free(rctx->op.ciph.cipher);
547 rctx->op.ciph.cipher = NULL;
548 goto err;
549 }
550 return rctx;
551 }
552 } else if (EVP_PKEY_CTX_IS_KEM_OP(pctx)) {
553 if (pctx->op.encap.kem != NULL) {
554 rctx->op.encap.kem = pctx->op.encap.kem;
555 if (!EVP_KEM_up_ref(rctx->op.encap.kem))
556 goto err;
557 }
558 if (pctx->op.encap.algctx != NULL) {
559 if (!ossl_assert(pctx->op.encap.kem != NULL))
560 goto err;
561
562 if (pctx->op.encap.kem->dupctx != NULL)
563 rctx->op.encap.algctx
564 = pctx->op.encap.kem->dupctx(pctx->op.encap.algctx);
565
566 if (rctx->op.encap.algctx == NULL) {
567 EVP_KEM_free(rctx->op.encap.kem);
568 rctx->op.encap.kem = NULL;
569 goto err;
570 }
571 return rctx;
572 }
573 } else if (EVP_PKEY_CTX_IS_GEN_OP(pctx)) {
574 /* Not supported - This would need a gen_dupctx() to work */
575 goto err;
576 }
577
578 rctx->pmeth = pctx->pmeth;
579 # ifndef OPENSSL_NO_ENGINE
580 rctx->engine = pctx->engine;
581 # endif
582
583 if (pctx->peerkey != NULL && !EVP_PKEY_up_ref(pctx->peerkey))
584 goto err;
585
586 rctx->peerkey = pctx->peerkey;
587
588 if (pctx->pmeth == NULL) {
589 if (rctx->operation == EVP_PKEY_OP_UNDEFINED) {
590 EVP_KEYMGMT *tmp_keymgmt = pctx->keymgmt;
591 void *provkey;
592
593 if (pctx->pkey == NULL)
594 return rctx;
595
596 provkey = evp_pkey_export_to_provider(pctx->pkey, pctx->libctx,
597 &tmp_keymgmt, pctx->propquery);
598 if (provkey == NULL)
599 goto err;
600 if (!EVP_KEYMGMT_up_ref(tmp_keymgmt))
601 goto err;
602 EVP_KEYMGMT_free(rctx->keymgmt);
603 rctx->keymgmt = tmp_keymgmt;
604 return rctx;
605 }
606 } else if (pctx->pmeth->copy(rctx, pctx) > 0) {
607 return rctx;
608 }
609 err:
610 rctx->pmeth = NULL;
611 EVP_PKEY_CTX_free(rctx);
612 return NULL;
613 }
614
EVP_PKEY_meth_add0(const EVP_PKEY_METHOD * pmeth)615 int EVP_PKEY_meth_add0(const EVP_PKEY_METHOD *pmeth)
616 {
617 if (app_pkey_methods == NULL) {
618 app_pkey_methods = sk_EVP_PKEY_METHOD_new(pmeth_cmp);
619 if (app_pkey_methods == NULL) {
620 ERR_raise(ERR_LIB_EVP, ERR_R_CRYPTO_LIB);
621 return 0;
622 }
623 }
624 if (!sk_EVP_PKEY_METHOD_push(app_pkey_methods, pmeth)) {
625 ERR_raise(ERR_LIB_EVP, ERR_R_CRYPTO_LIB);
626 return 0;
627 }
628 sk_EVP_PKEY_METHOD_sort(app_pkey_methods);
629 return 1;
630 }
631
evp_app_cleanup_int(void)632 void evp_app_cleanup_int(void)
633 {
634 if (app_pkey_methods != NULL)
635 sk_EVP_PKEY_METHOD_pop_free(app_pkey_methods, EVP_PKEY_meth_free);
636 }
637
EVP_PKEY_meth_remove(const EVP_PKEY_METHOD * pmeth)638 int EVP_PKEY_meth_remove(const EVP_PKEY_METHOD *pmeth)
639 {
640 const EVP_PKEY_METHOD *ret;
641
642 ret = sk_EVP_PKEY_METHOD_delete_ptr(app_pkey_methods, pmeth);
643
644 return ret == NULL ? 0 : 1;
645 }
646
EVP_PKEY_meth_get_count(void)647 size_t EVP_PKEY_meth_get_count(void)
648 {
649 size_t rv = OSSL_NELEM(standard_methods);
650
651 if (app_pkey_methods)
652 rv += sk_EVP_PKEY_METHOD_num(app_pkey_methods);
653 return rv;
654 }
655
EVP_PKEY_meth_get0(size_t idx)656 const EVP_PKEY_METHOD *EVP_PKEY_meth_get0(size_t idx)
657 {
658 if (idx < OSSL_NELEM(standard_methods))
659 return (standard_methods[idx])();
660 if (app_pkey_methods == NULL)
661 return NULL;
662 idx -= OSSL_NELEM(standard_methods);
663 if (idx >= (size_t)sk_EVP_PKEY_METHOD_num(app_pkey_methods))
664 return NULL;
665 return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx);
666 }
667 #endif
668
EVP_PKEY_CTX_is_a(EVP_PKEY_CTX * ctx,const char * keytype)669 int EVP_PKEY_CTX_is_a(EVP_PKEY_CTX *ctx, const char *keytype)
670 {
671 #ifndef FIPS_MODULE
672 if (evp_pkey_ctx_is_legacy(ctx))
673 return (ctx->pmeth->pkey_id == evp_pkey_name2type(keytype));
674 #endif
675 return EVP_KEYMGMT_is_a(ctx->keymgmt, keytype);
676 }
677
EVP_PKEY_CTX_set_params(EVP_PKEY_CTX * ctx,const OSSL_PARAM * params)678 int EVP_PKEY_CTX_set_params(EVP_PKEY_CTX *ctx, const OSSL_PARAM *params)
679 {
680 switch (evp_pkey_ctx_state(ctx)) {
681 case EVP_PKEY_STATE_PROVIDER:
682 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
683 && ctx->op.kex.exchange != NULL
684 && ctx->op.kex.exchange->set_ctx_params != NULL)
685 return
686 ctx->op.kex.exchange->set_ctx_params(ctx->op.kex.algctx,
687 params);
688 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
689 && ctx->op.sig.signature != NULL
690 && ctx->op.sig.signature->set_ctx_params != NULL)
691 return
692 ctx->op.sig.signature->set_ctx_params(ctx->op.sig.algctx,
693 params);
694 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
695 && ctx->op.ciph.cipher != NULL
696 && ctx->op.ciph.cipher->set_ctx_params != NULL)
697 return
698 ctx->op.ciph.cipher->set_ctx_params(ctx->op.ciph.algctx,
699 params);
700 if (EVP_PKEY_CTX_IS_GEN_OP(ctx)
701 && ctx->keymgmt != NULL
702 && ctx->keymgmt->gen_set_params != NULL)
703 return
704 evp_keymgmt_gen_set_params(ctx->keymgmt, ctx->op.keymgmt.genctx,
705 params);
706 if (EVP_PKEY_CTX_IS_KEM_OP(ctx)
707 && ctx->op.encap.kem != NULL
708 && ctx->op.encap.kem->set_ctx_params != NULL)
709 return
710 ctx->op.encap.kem->set_ctx_params(ctx->op.encap.algctx,
711 params);
712 break;
713 case EVP_PKEY_STATE_UNKNOWN:
714 break;
715 #ifndef FIPS_MODULE
716 case EVP_PKEY_STATE_LEGACY:
717 return evp_pkey_ctx_set_params_to_ctrl(ctx, params);
718 #endif
719 }
720 return 0;
721 }
722
EVP_PKEY_CTX_get_params(EVP_PKEY_CTX * ctx,OSSL_PARAM * params)723 int EVP_PKEY_CTX_get_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
724 {
725 switch (evp_pkey_ctx_state(ctx)) {
726 case EVP_PKEY_STATE_PROVIDER:
727 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
728 && ctx->op.kex.exchange != NULL
729 && ctx->op.kex.exchange->get_ctx_params != NULL)
730 return
731 ctx->op.kex.exchange->get_ctx_params(ctx->op.kex.algctx,
732 params);
733 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
734 && ctx->op.sig.signature != NULL
735 && ctx->op.sig.signature->get_ctx_params != NULL)
736 return
737 ctx->op.sig.signature->get_ctx_params(ctx->op.sig.algctx,
738 params);
739 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
740 && ctx->op.ciph.cipher != NULL
741 && ctx->op.ciph.cipher->get_ctx_params != NULL)
742 return
743 ctx->op.ciph.cipher->get_ctx_params(ctx->op.ciph.algctx,
744 params);
745 if (EVP_PKEY_CTX_IS_KEM_OP(ctx)
746 && ctx->op.encap.kem != NULL
747 && ctx->op.encap.kem->get_ctx_params != NULL)
748 return
749 ctx->op.encap.kem->get_ctx_params(ctx->op.encap.algctx,
750 params);
751 if (EVP_PKEY_CTX_IS_GEN_OP(ctx)
752 && ctx->keymgmt != NULL
753 && ctx->keymgmt->gen_get_params != NULL)
754 return
755 evp_keymgmt_gen_get_params(ctx->keymgmt, ctx->op.keymgmt.genctx,
756 params);
757 break;
758 case EVP_PKEY_STATE_UNKNOWN:
759 break;
760 #ifndef FIPS_MODULE
761 case EVP_PKEY_STATE_LEGACY:
762 return evp_pkey_ctx_get_params_to_ctrl(ctx, params);
763 #endif
764 }
765 return 0;
766 }
767
768 #ifndef FIPS_MODULE
EVP_PKEY_CTX_gettable_params(const EVP_PKEY_CTX * ctx)769 const OSSL_PARAM *EVP_PKEY_CTX_gettable_params(const EVP_PKEY_CTX *ctx)
770 {
771 void *provctx;
772
773 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
774 && ctx->op.kex.exchange != NULL
775 && ctx->op.kex.exchange->gettable_ctx_params != NULL) {
776 provctx = ossl_provider_ctx(EVP_KEYEXCH_get0_provider(ctx->op.kex.exchange));
777 return ctx->op.kex.exchange->gettable_ctx_params(ctx->op.kex.algctx,
778 provctx);
779 }
780 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
781 && ctx->op.sig.signature != NULL
782 && ctx->op.sig.signature->gettable_ctx_params != NULL) {
783 provctx = ossl_provider_ctx(
784 EVP_SIGNATURE_get0_provider(ctx->op.sig.signature));
785 return ctx->op.sig.signature->gettable_ctx_params(ctx->op.sig.algctx,
786 provctx);
787 }
788 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
789 && ctx->op.ciph.cipher != NULL
790 && ctx->op.ciph.cipher->gettable_ctx_params != NULL) {
791 provctx = ossl_provider_ctx(
792 EVP_ASYM_CIPHER_get0_provider(ctx->op.ciph.cipher));
793 return ctx->op.ciph.cipher->gettable_ctx_params(ctx->op.ciph.algctx,
794 provctx);
795 }
796 if (EVP_PKEY_CTX_IS_KEM_OP(ctx)
797 && ctx->op.encap.kem != NULL
798 && ctx->op.encap.kem->gettable_ctx_params != NULL) {
799 provctx = ossl_provider_ctx(EVP_KEM_get0_provider(ctx->op.encap.kem));
800 return ctx->op.encap.kem->gettable_ctx_params(ctx->op.encap.algctx,
801 provctx);
802 }
803 if (EVP_PKEY_CTX_IS_GEN_OP(ctx)
804 && ctx->keymgmt != NULL
805 && ctx->keymgmt->gen_gettable_params != NULL) {
806 provctx = ossl_provider_ctx(EVP_KEYMGMT_get0_provider(ctx->keymgmt));
807 return ctx->keymgmt->gen_gettable_params(ctx->op.keymgmt.genctx,
808 provctx);
809 }
810 return NULL;
811 }
812
EVP_PKEY_CTX_settable_params(const EVP_PKEY_CTX * ctx)813 const OSSL_PARAM *EVP_PKEY_CTX_settable_params(const EVP_PKEY_CTX *ctx)
814 {
815 void *provctx;
816
817 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
818 && ctx->op.kex.exchange != NULL
819 && ctx->op.kex.exchange->settable_ctx_params != NULL) {
820 provctx = ossl_provider_ctx(EVP_KEYEXCH_get0_provider(ctx->op.kex.exchange));
821 return ctx->op.kex.exchange->settable_ctx_params(ctx->op.kex.algctx,
822 provctx);
823 }
824 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
825 && ctx->op.sig.signature != NULL
826 && ctx->op.sig.signature->settable_ctx_params != NULL) {
827 provctx = ossl_provider_ctx(
828 EVP_SIGNATURE_get0_provider(ctx->op.sig.signature));
829 return ctx->op.sig.signature->settable_ctx_params(ctx->op.sig.algctx,
830 provctx);
831 }
832 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
833 && ctx->op.ciph.cipher != NULL
834 && ctx->op.ciph.cipher->settable_ctx_params != NULL) {
835 provctx = ossl_provider_ctx(
836 EVP_ASYM_CIPHER_get0_provider(ctx->op.ciph.cipher));
837 return ctx->op.ciph.cipher->settable_ctx_params(ctx->op.ciph.algctx,
838 provctx);
839 }
840 if (EVP_PKEY_CTX_IS_GEN_OP(ctx)
841 && ctx->keymgmt != NULL
842 && ctx->keymgmt->gen_settable_params != NULL) {
843 provctx = ossl_provider_ctx(EVP_KEYMGMT_get0_provider(ctx->keymgmt));
844 return ctx->keymgmt->gen_settable_params(ctx->op.keymgmt.genctx,
845 provctx);
846 }
847 if (EVP_PKEY_CTX_IS_KEM_OP(ctx)
848 && ctx->op.encap.kem != NULL
849 && ctx->op.encap.kem->settable_ctx_params != NULL) {
850 provctx = ossl_provider_ctx(EVP_KEM_get0_provider(ctx->op.encap.kem));
851 return ctx->op.encap.kem->settable_ctx_params(ctx->op.encap.algctx,
852 provctx);
853 }
854 return NULL;
855 }
856
857 /*
858 * Internal helpers for stricter EVP_PKEY_CTX_{set,get}_params().
859 *
860 * Return 1 on success, 0 or negative for errors.
861 *
862 * In particular they return -2 if any of the params is not supported.
863 *
864 * They are not available in FIPS_MODULE as they depend on
865 * - EVP_PKEY_CTX_{get,set}_params()
866 * - EVP_PKEY_CTX_{gettable,settable}_params()
867 *
868 */
evp_pkey_ctx_set_params_strict(EVP_PKEY_CTX * ctx,OSSL_PARAM * params)869 int evp_pkey_ctx_set_params_strict(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
870 {
871 if (ctx == NULL || params == NULL)
872 return 0;
873
874 /*
875 * We only check for provider side EVP_PKEY_CTX. For #legacy, we
876 * depend on the translation that happens in EVP_PKEY_CTX_set_params()
877 * call, and that the resulting ctrl call will return -2 if it doesn't
878 * known the ctrl command number.
879 */
880 if (evp_pkey_ctx_is_provided(ctx)) {
881 const OSSL_PARAM *settable = EVP_PKEY_CTX_settable_params(ctx);
882 const OSSL_PARAM *p;
883
884 for (p = params; p->key != NULL; p++) {
885 /* Check the ctx actually understands this parameter */
886 if (OSSL_PARAM_locate_const(settable, p->key) == NULL)
887 return -2;
888 }
889 }
890
891 return EVP_PKEY_CTX_set_params(ctx, params);
892 }
893
evp_pkey_ctx_get_params_strict(EVP_PKEY_CTX * ctx,OSSL_PARAM * params)894 int evp_pkey_ctx_get_params_strict(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
895 {
896 if (ctx == NULL || params == NULL)
897 return 0;
898
899 /*
900 * We only check for provider side EVP_PKEY_CTX. For #legacy, we
901 * depend on the translation that happens in EVP_PKEY_CTX_get_params()
902 * call, and that the resulting ctrl call will return -2 if it doesn't
903 * known the ctrl command number.
904 */
905 if (evp_pkey_ctx_is_provided(ctx)) {
906 const OSSL_PARAM *gettable = EVP_PKEY_CTX_gettable_params(ctx);
907 const OSSL_PARAM *p;
908
909 for (p = params; p->key != NULL; p++) {
910 /* Check the ctx actually understands this parameter */
911 if (OSSL_PARAM_locate_const(gettable, p->key) == NULL)
912 return -2;
913 }
914 }
915
916 return EVP_PKEY_CTX_get_params(ctx, params);
917 }
918
EVP_PKEY_CTX_get_signature_md(EVP_PKEY_CTX * ctx,const EVP_MD ** md)919 int EVP_PKEY_CTX_get_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD **md)
920 {
921 OSSL_PARAM sig_md_params[2], *p = sig_md_params;
922 /* 80 should be big enough */
923 char name[80] = "";
924 const EVP_MD *tmp;
925
926 if (ctx == NULL || !EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
927 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
928 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
929 return -2;
930 }
931
932 if (ctx->op.sig.algctx == NULL)
933 return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG,
934 EVP_PKEY_CTRL_GET_MD, 0, (void *)(md));
935
936 *p++ = OSSL_PARAM_construct_utf8_string(OSSL_SIGNATURE_PARAM_DIGEST,
937 name,
938 sizeof(name));
939 *p = OSSL_PARAM_construct_end();
940
941 if (!EVP_PKEY_CTX_get_params(ctx, sig_md_params))
942 return 0;
943
944 tmp = evp_get_digestbyname_ex(ctx->libctx, name);
945 if (tmp == NULL)
946 return 0;
947
948 *md = tmp;
949
950 return 1;
951 }
952
evp_pkey_ctx_set_md(EVP_PKEY_CTX * ctx,const EVP_MD * md,int fallback,const char * param,int op,int ctrl)953 static int evp_pkey_ctx_set_md(EVP_PKEY_CTX *ctx, const EVP_MD *md,
954 int fallback, const char *param, int op,
955 int ctrl)
956 {
957 OSSL_PARAM md_params[2], *p = md_params;
958 const char *name;
959
960 if (ctx == NULL || (ctx->operation & op) == 0) {
961 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
962 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
963 return -2;
964 }
965
966 if (fallback)
967 return EVP_PKEY_CTX_ctrl(ctx, -1, op, ctrl, 0, (void *)(md));
968
969 if (md == NULL) {
970 name = "";
971 } else {
972 name = EVP_MD_get0_name(md);
973 }
974
975 *p++ = OSSL_PARAM_construct_utf8_string(param,
976 /*
977 * Cast away the const. This is read
978 * only so should be safe
979 */
980 (char *)name, 0);
981 *p = OSSL_PARAM_construct_end();
982
983 return EVP_PKEY_CTX_set_params(ctx, md_params);
984 }
985
EVP_PKEY_CTX_set_signature_md(EVP_PKEY_CTX * ctx,const EVP_MD * md)986 int EVP_PKEY_CTX_set_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD *md)
987 {
988 return evp_pkey_ctx_set_md(ctx, md, ctx->op.sig.algctx == NULL,
989 OSSL_SIGNATURE_PARAM_DIGEST,
990 EVP_PKEY_OP_TYPE_SIG, EVP_PKEY_CTRL_MD);
991 }
992
EVP_PKEY_CTX_set_tls1_prf_md(EVP_PKEY_CTX * ctx,const EVP_MD * md)993 int EVP_PKEY_CTX_set_tls1_prf_md(EVP_PKEY_CTX *ctx, const EVP_MD *md)
994 {
995 return evp_pkey_ctx_set_md(ctx, md, ctx->op.kex.algctx == NULL,
996 OSSL_KDF_PARAM_DIGEST,
997 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_TLS_MD);
998 }
999
evp_pkey_ctx_set1_octet_string(EVP_PKEY_CTX * ctx,int fallback,const char * param,int op,int ctrl,const unsigned char * data,int datalen)1000 static int evp_pkey_ctx_set1_octet_string(EVP_PKEY_CTX *ctx, int fallback,
1001 const char *param, int op, int ctrl,
1002 const unsigned char *data,
1003 int datalen)
1004 {
1005 OSSL_PARAM octet_string_params[2], *p = octet_string_params;
1006
1007 if (ctx == NULL || (ctx->operation & op) == 0) {
1008 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1009 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
1010 return -2;
1011 }
1012
1013 /* Code below to be removed when legacy support is dropped. */
1014 if (fallback)
1015 return EVP_PKEY_CTX_ctrl(ctx, -1, op, ctrl, datalen, (void *)(data));
1016 /* end of legacy support */
1017
1018 if (datalen < 0) {
1019 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_LENGTH);
1020 return 0;
1021 }
1022
1023 *p++ = OSSL_PARAM_construct_octet_string(param,
1024 /*
1025 * Cast away the const. This is read
1026 * only so should be safe
1027 */
1028 (unsigned char *)data,
1029 (size_t)datalen);
1030 *p = OSSL_PARAM_construct_end();
1031
1032 return EVP_PKEY_CTX_set_params(ctx, octet_string_params);
1033 }
1034
evp_pkey_ctx_add1_octet_string(EVP_PKEY_CTX * ctx,int fallback,const char * param,int op,int ctrl,const unsigned char * data,int datalen)1035 static int evp_pkey_ctx_add1_octet_string(EVP_PKEY_CTX *ctx, int fallback,
1036 const char *param, int op, int ctrl,
1037 const unsigned char *data,
1038 int datalen)
1039 {
1040 OSSL_PARAM os_params[2];
1041 const OSSL_PARAM *gettables;
1042 unsigned char *info = NULL;
1043 size_t info_len = 0;
1044 size_t info_alloc = 0;
1045 int ret = 0;
1046
1047 if (ctx == NULL || (ctx->operation & op) == 0) {
1048 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1049 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
1050 return -2;
1051 }
1052
1053 /* Code below to be removed when legacy support is dropped. */
1054 if (fallback)
1055 return EVP_PKEY_CTX_ctrl(ctx, -1, op, ctrl, datalen, (void *)(data));
1056 /* end of legacy support */
1057
1058 if (datalen < 0) {
1059 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_LENGTH);
1060 return 0;
1061 } else if (datalen == 0) {
1062 return 1;
1063 }
1064
1065 /* Check for older provider that doesn't support getting this parameter */
1066 gettables = EVP_PKEY_CTX_gettable_params(ctx);
1067 if (gettables == NULL || OSSL_PARAM_locate_const(gettables, param) == NULL)
1068 return evp_pkey_ctx_set1_octet_string(ctx, fallback, param, op, ctrl,
1069 data, datalen);
1070
1071 /* Get the original value length */
1072 os_params[0] = OSSL_PARAM_construct_octet_string(param, NULL, 0);
1073 os_params[1] = OSSL_PARAM_construct_end();
1074
1075 if (!EVP_PKEY_CTX_get_params(ctx, os_params))
1076 return 0;
1077
1078 /* This should not happen but check to be sure. */
1079 if (os_params[0].return_size == OSSL_PARAM_UNMODIFIED)
1080 return 0;
1081
1082 info_alloc = os_params[0].return_size + datalen;
1083 if (info_alloc == 0)
1084 return 0;
1085 info = OPENSSL_zalloc(info_alloc);
1086 if (info == NULL)
1087 return 0;
1088 info_len = os_params[0].return_size;
1089
1090 os_params[0] = OSSL_PARAM_construct_octet_string(param, info, info_alloc);
1091
1092 /* if we have data, then go get it */
1093 if (info_len > 0) {
1094 if (!EVP_PKEY_CTX_get_params(ctx, os_params))
1095 goto error;
1096 }
1097
1098 /* Copy the input data */
1099 memcpy(&info[info_len], data, datalen);
1100 ret = EVP_PKEY_CTX_set_params(ctx, os_params);
1101
1102 error:
1103 OPENSSL_clear_free(info, info_alloc);
1104 return ret;
1105 }
1106
EVP_PKEY_CTX_set1_tls1_prf_secret(EVP_PKEY_CTX * ctx,const unsigned char * sec,int seclen)1107 int EVP_PKEY_CTX_set1_tls1_prf_secret(EVP_PKEY_CTX *ctx,
1108 const unsigned char *sec, int seclen)
1109 {
1110 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
1111 OSSL_KDF_PARAM_SECRET,
1112 EVP_PKEY_OP_DERIVE,
1113 EVP_PKEY_CTRL_TLS_SECRET,
1114 sec, seclen);
1115 }
1116
EVP_PKEY_CTX_add1_tls1_prf_seed(EVP_PKEY_CTX * ctx,const unsigned char * seed,int seedlen)1117 int EVP_PKEY_CTX_add1_tls1_prf_seed(EVP_PKEY_CTX *ctx,
1118 const unsigned char *seed, int seedlen)
1119 {
1120 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
1121 OSSL_KDF_PARAM_SEED,
1122 EVP_PKEY_OP_DERIVE,
1123 EVP_PKEY_CTRL_TLS_SEED,
1124 seed, seedlen);
1125 }
1126
EVP_PKEY_CTX_set_hkdf_md(EVP_PKEY_CTX * ctx,const EVP_MD * md)1127 int EVP_PKEY_CTX_set_hkdf_md(EVP_PKEY_CTX *ctx, const EVP_MD *md)
1128 {
1129 return evp_pkey_ctx_set_md(ctx, md, ctx->op.kex.algctx == NULL,
1130 OSSL_KDF_PARAM_DIGEST,
1131 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_HKDF_MD);
1132 }
1133
EVP_PKEY_CTX_set1_hkdf_salt(EVP_PKEY_CTX * ctx,const unsigned char * salt,int saltlen)1134 int EVP_PKEY_CTX_set1_hkdf_salt(EVP_PKEY_CTX *ctx,
1135 const unsigned char *salt, int saltlen)
1136 {
1137 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
1138 OSSL_KDF_PARAM_SALT,
1139 EVP_PKEY_OP_DERIVE,
1140 EVP_PKEY_CTRL_HKDF_SALT,
1141 salt, saltlen);
1142 }
1143
EVP_PKEY_CTX_set1_hkdf_key(EVP_PKEY_CTX * ctx,const unsigned char * key,int keylen)1144 int EVP_PKEY_CTX_set1_hkdf_key(EVP_PKEY_CTX *ctx,
1145 const unsigned char *key, int keylen)
1146 {
1147 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
1148 OSSL_KDF_PARAM_KEY,
1149 EVP_PKEY_OP_DERIVE,
1150 EVP_PKEY_CTRL_HKDF_KEY,
1151 key, keylen);
1152 }
1153
EVP_PKEY_CTX_add1_hkdf_info(EVP_PKEY_CTX * ctx,const unsigned char * info,int infolen)1154 int EVP_PKEY_CTX_add1_hkdf_info(EVP_PKEY_CTX *ctx,
1155 const unsigned char *info, int infolen)
1156 {
1157 return evp_pkey_ctx_add1_octet_string(ctx, ctx->op.kex.algctx == NULL,
1158 OSSL_KDF_PARAM_INFO,
1159 EVP_PKEY_OP_DERIVE,
1160 EVP_PKEY_CTRL_HKDF_INFO,
1161 info, infolen);
1162 }
1163
EVP_PKEY_CTX_set_hkdf_mode(EVP_PKEY_CTX * ctx,int mode)1164 int EVP_PKEY_CTX_set_hkdf_mode(EVP_PKEY_CTX *ctx, int mode)
1165 {
1166 OSSL_PARAM int_params[2], *p = int_params;
1167
1168 if (ctx == NULL || !EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
1169 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1170 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
1171 return -2;
1172 }
1173
1174 /* Code below to be removed when legacy support is dropped. */
1175 if (ctx->op.kex.algctx == NULL)
1176 return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_DERIVE,
1177 EVP_PKEY_CTRL_HKDF_MODE, mode, NULL);
1178 /* end of legacy support */
1179
1180 if (mode < 0) {
1181 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_VALUE);
1182 return 0;
1183 }
1184
1185 *p++ = OSSL_PARAM_construct_int(OSSL_KDF_PARAM_MODE, &mode);
1186 *p = OSSL_PARAM_construct_end();
1187
1188 return EVP_PKEY_CTX_set_params(ctx, int_params);
1189 }
1190
EVP_PKEY_CTX_set1_pbe_pass(EVP_PKEY_CTX * ctx,const char * pass,int passlen)1191 int EVP_PKEY_CTX_set1_pbe_pass(EVP_PKEY_CTX *ctx, const char *pass,
1192 int passlen)
1193 {
1194 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
1195 OSSL_KDF_PARAM_PASSWORD,
1196 EVP_PKEY_OP_DERIVE,
1197 EVP_PKEY_CTRL_PASS,
1198 (const unsigned char *)pass, passlen);
1199 }
1200
EVP_PKEY_CTX_set1_scrypt_salt(EVP_PKEY_CTX * ctx,const unsigned char * salt,int saltlen)1201 int EVP_PKEY_CTX_set1_scrypt_salt(EVP_PKEY_CTX *ctx,
1202 const unsigned char *salt, int saltlen)
1203 {
1204 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
1205 OSSL_KDF_PARAM_SALT,
1206 EVP_PKEY_OP_DERIVE,
1207 EVP_PKEY_CTRL_SCRYPT_SALT,
1208 salt, saltlen);
1209 }
1210
evp_pkey_ctx_set_uint64(EVP_PKEY_CTX * ctx,const char * param,int op,int ctrl,uint64_t val)1211 static int evp_pkey_ctx_set_uint64(EVP_PKEY_CTX *ctx, const char *param,
1212 int op, int ctrl, uint64_t val)
1213 {
1214 OSSL_PARAM uint64_params[2], *p = uint64_params;
1215
1216 if (ctx == NULL || !EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
1217 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1218 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
1219 return -2;
1220 }
1221
1222 /* Code below to be removed when legacy support is dropped. */
1223 if (ctx->op.kex.algctx == NULL)
1224 return EVP_PKEY_CTX_ctrl_uint64(ctx, -1, op, ctrl, val);
1225 /* end of legacy support */
1226
1227 *p++ = OSSL_PARAM_construct_uint64(param, &val);
1228 *p = OSSL_PARAM_construct_end();
1229
1230 return EVP_PKEY_CTX_set_params(ctx, uint64_params);
1231 }
1232
EVP_PKEY_CTX_set_scrypt_N(EVP_PKEY_CTX * ctx,uint64_t n)1233 int EVP_PKEY_CTX_set_scrypt_N(EVP_PKEY_CTX *ctx, uint64_t n)
1234 {
1235 return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_N,
1236 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_SCRYPT_N,
1237 n);
1238 }
1239
EVP_PKEY_CTX_set_scrypt_r(EVP_PKEY_CTX * ctx,uint64_t r)1240 int EVP_PKEY_CTX_set_scrypt_r(EVP_PKEY_CTX *ctx, uint64_t r)
1241 {
1242 return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_R,
1243 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_SCRYPT_R,
1244 r);
1245 }
1246
EVP_PKEY_CTX_set_scrypt_p(EVP_PKEY_CTX * ctx,uint64_t p)1247 int EVP_PKEY_CTX_set_scrypt_p(EVP_PKEY_CTX *ctx, uint64_t p)
1248 {
1249 return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_P,
1250 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_SCRYPT_P,
1251 p);
1252 }
1253
EVP_PKEY_CTX_set_scrypt_maxmem_bytes(EVP_PKEY_CTX * ctx,uint64_t maxmem_bytes)1254 int EVP_PKEY_CTX_set_scrypt_maxmem_bytes(EVP_PKEY_CTX *ctx,
1255 uint64_t maxmem_bytes)
1256 {
1257 return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_MAXMEM,
1258 EVP_PKEY_OP_DERIVE,
1259 EVP_PKEY_CTRL_SCRYPT_MAXMEM_BYTES,
1260 maxmem_bytes);
1261 }
1262
EVP_PKEY_CTX_set_mac_key(EVP_PKEY_CTX * ctx,const unsigned char * key,int keylen)1263 int EVP_PKEY_CTX_set_mac_key(EVP_PKEY_CTX *ctx, const unsigned char *key,
1264 int keylen)
1265 {
1266 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.keymgmt.genctx == NULL,
1267 OSSL_PKEY_PARAM_PRIV_KEY,
1268 EVP_PKEY_OP_KEYGEN,
1269 EVP_PKEY_CTRL_SET_MAC_KEY,
1270 key, keylen);
1271 }
1272
EVP_PKEY_CTX_set_kem_op(EVP_PKEY_CTX * ctx,const char * op)1273 int EVP_PKEY_CTX_set_kem_op(EVP_PKEY_CTX *ctx, const char *op)
1274 {
1275 OSSL_PARAM params[2], *p = params;
1276
1277 if (ctx == NULL || op == NULL) {
1278 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_VALUE);
1279 return 0;
1280 }
1281 if (!EVP_PKEY_CTX_IS_KEM_OP(ctx)) {
1282 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1283 return -2;
1284 }
1285 *p++ = OSSL_PARAM_construct_utf8_string(OSSL_KEM_PARAM_OPERATION,
1286 (char *)op, 0);
1287 *p = OSSL_PARAM_construct_end();
1288 return EVP_PKEY_CTX_set_params(ctx, params);
1289 }
1290
EVP_PKEY_CTX_set1_id(EVP_PKEY_CTX * ctx,const void * id,int len)1291 int EVP_PKEY_CTX_set1_id(EVP_PKEY_CTX *ctx, const void *id, int len)
1292 {
1293 return EVP_PKEY_CTX_ctrl(ctx, -1, -1,
1294 EVP_PKEY_CTRL_SET1_ID, (int)len, (void*)(id));
1295 }
1296
EVP_PKEY_CTX_get1_id(EVP_PKEY_CTX * ctx,void * id)1297 int EVP_PKEY_CTX_get1_id(EVP_PKEY_CTX *ctx, void *id)
1298 {
1299 return EVP_PKEY_CTX_ctrl(ctx, -1, -1, EVP_PKEY_CTRL_GET1_ID, 0, (void*)id);
1300 }
1301
EVP_PKEY_CTX_get1_id_len(EVP_PKEY_CTX * ctx,size_t * id_len)1302 int EVP_PKEY_CTX_get1_id_len(EVP_PKEY_CTX *ctx, size_t *id_len)
1303 {
1304 return EVP_PKEY_CTX_ctrl(ctx, -1, -1,
1305 EVP_PKEY_CTRL_GET1_ID_LEN, 0, (void*)id_len);
1306 }
1307
evp_pkey_ctx_ctrl_int(EVP_PKEY_CTX * ctx,int keytype,int optype,int cmd,int p1,void * p2)1308 static int evp_pkey_ctx_ctrl_int(EVP_PKEY_CTX *ctx, int keytype, int optype,
1309 int cmd, int p1, void *p2)
1310 {
1311 int ret = 0;
1312
1313 /*
1314 * If the method has a |digest_custom| function, we can relax the
1315 * operation type check, since this can be called before the operation
1316 * is initialized.
1317 */
1318 if (ctx->pmeth == NULL || ctx->pmeth->digest_custom == NULL) {
1319 if (ctx->operation == EVP_PKEY_OP_UNDEFINED) {
1320 ERR_raise(ERR_LIB_EVP, EVP_R_NO_OPERATION_SET);
1321 return -1;
1322 }
1323
1324 if ((optype != -1) && !(ctx->operation & optype)) {
1325 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION);
1326 return -1;
1327 }
1328 }
1329
1330 switch (evp_pkey_ctx_state(ctx)) {
1331 case EVP_PKEY_STATE_PROVIDER:
1332 return evp_pkey_ctx_ctrl_to_param(ctx, keytype, optype, cmd, p1, p2);
1333 case EVP_PKEY_STATE_UNKNOWN:
1334 case EVP_PKEY_STATE_LEGACY:
1335 if (ctx->pmeth == NULL || ctx->pmeth->ctrl == NULL) {
1336 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1337 return -2;
1338 }
1339 if ((keytype != -1) && (ctx->pmeth->pkey_id != keytype))
1340 return -1;
1341
1342 ret = ctx->pmeth->ctrl(ctx, cmd, p1, p2);
1343
1344 if (ret == -2)
1345 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1346 break;
1347 }
1348 return ret;
1349 }
1350
EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX * ctx,int keytype,int optype,int cmd,int p1,void * p2)1351 int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype,
1352 int cmd, int p1, void *p2)
1353 {
1354 int ret = 0;
1355
1356 if (ctx == NULL) {
1357 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1358 return -2;
1359 }
1360 /* If unsupported, we don't want that reported here */
1361 ERR_set_mark();
1362 ret = evp_pkey_ctx_store_cached_data(ctx, keytype, optype,
1363 cmd, NULL, p2, p1);
1364 if (ret == -2) {
1365 ERR_pop_to_mark();
1366 } else {
1367 ERR_clear_last_mark();
1368 /*
1369 * If there was an error, there was an error.
1370 * If the operation isn't initialized yet, we also return, as
1371 * the saved values will be used then anyway.
1372 */
1373 if (ret < 1 || ctx->operation == EVP_PKEY_OP_UNDEFINED)
1374 return ret;
1375 }
1376 return evp_pkey_ctx_ctrl_int(ctx, keytype, optype, cmd, p1, p2);
1377 }
1378
EVP_PKEY_CTX_ctrl_uint64(EVP_PKEY_CTX * ctx,int keytype,int optype,int cmd,uint64_t value)1379 int EVP_PKEY_CTX_ctrl_uint64(EVP_PKEY_CTX *ctx, int keytype, int optype,
1380 int cmd, uint64_t value)
1381 {
1382 return EVP_PKEY_CTX_ctrl(ctx, keytype, optype, cmd, 0, &value);
1383 }
1384
1385
evp_pkey_ctx_ctrl_str_int(EVP_PKEY_CTX * ctx,const char * name,const char * value)1386 static int evp_pkey_ctx_ctrl_str_int(EVP_PKEY_CTX *ctx,
1387 const char *name, const char *value)
1388 {
1389 int ret = 0;
1390
1391 if (ctx == NULL) {
1392 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1393 return -2;
1394 }
1395
1396 switch (evp_pkey_ctx_state(ctx)) {
1397 case EVP_PKEY_STATE_PROVIDER:
1398 return evp_pkey_ctx_ctrl_str_to_param(ctx, name, value);
1399 case EVP_PKEY_STATE_UNKNOWN:
1400 case EVP_PKEY_STATE_LEGACY:
1401 if (ctx == NULL || ctx->pmeth == NULL || ctx->pmeth->ctrl_str == NULL) {
1402 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1403 return -2;
1404 }
1405 if (strcmp(name, "digest") == 0)
1406 ret = EVP_PKEY_CTX_md(ctx,
1407 EVP_PKEY_OP_TYPE_SIG | EVP_PKEY_OP_TYPE_CRYPT,
1408 EVP_PKEY_CTRL_MD, value);
1409 else
1410 ret = ctx->pmeth->ctrl_str(ctx, name, value);
1411 break;
1412 }
1413
1414 return ret;
1415 }
1416
EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX * ctx,const char * name,const char * value)1417 int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX *ctx,
1418 const char *name, const char *value)
1419 {
1420 int ret = 0;
1421
1422 /* If unsupported, we don't want that reported here */
1423 ERR_set_mark();
1424 ret = evp_pkey_ctx_store_cached_data(ctx, -1, -1, -1,
1425 name, value, strlen(value) + 1);
1426 if (ret == -2) {
1427 ERR_pop_to_mark();
1428 } else {
1429 ERR_clear_last_mark();
1430 /*
1431 * If there was an error, there was an error.
1432 * If the operation isn't initialized yet, we also return, as
1433 * the saved values will be used then anyway.
1434 */
1435 if (ret < 1 || ctx->operation == EVP_PKEY_OP_UNDEFINED)
1436 return ret;
1437 }
1438
1439 return evp_pkey_ctx_ctrl_str_int(ctx, name, value);
1440 }
1441
decode_cmd(int cmd,const char * name)1442 static int decode_cmd(int cmd, const char *name)
1443 {
1444 if (cmd == -1) {
1445 /*
1446 * The consequence of the assertion not being true is that this
1447 * function will return -1, which will cause the calling functions
1448 * to signal that the command is unsupported... in non-debug mode.
1449 */
1450 if (ossl_assert(name != NULL))
1451 if (strcmp(name, "distid") == 0 || strcmp(name, "hexdistid") == 0)
1452 cmd = EVP_PKEY_CTRL_SET1_ID;
1453 }
1454
1455 return cmd;
1456 }
1457
evp_pkey_ctx_store_cached_data(EVP_PKEY_CTX * ctx,int keytype,int optype,int cmd,const char * name,const void * data,size_t data_len)1458 static int evp_pkey_ctx_store_cached_data(EVP_PKEY_CTX *ctx,
1459 int keytype, int optype,
1460 int cmd, const char *name,
1461 const void *data, size_t data_len)
1462 {
1463 /*
1464 * Check that it's one of the supported commands. The ctrl commands
1465 * number cases here must correspond to the cases in the bottom switch
1466 * in this function.
1467 */
1468 switch (cmd = decode_cmd(cmd, name)) {
1469 case EVP_PKEY_CTRL_SET1_ID:
1470 break;
1471 default:
1472 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1473 return -2;
1474 }
1475
1476 if (keytype != -1) {
1477 switch (evp_pkey_ctx_state(ctx)) {
1478 case EVP_PKEY_STATE_PROVIDER:
1479 if (ctx->keymgmt == NULL) {
1480 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1481 return -2;
1482 }
1483 if (!EVP_KEYMGMT_is_a(ctx->keymgmt,
1484 evp_pkey_type2name(keytype))) {
1485 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION);
1486 return -1;
1487 }
1488 break;
1489 case EVP_PKEY_STATE_UNKNOWN:
1490 case EVP_PKEY_STATE_LEGACY:
1491 if (ctx->pmeth == NULL) {
1492 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1493 return -2;
1494 }
1495 if (EVP_PKEY_type(ctx->pmeth->pkey_id) != EVP_PKEY_type(keytype)) {
1496 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION);
1497 return -1;
1498 }
1499 break;
1500 }
1501 }
1502 if (optype != -1 && (ctx->operation & optype) == 0) {
1503 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION);
1504 return -1;
1505 }
1506
1507 switch (cmd) {
1508 case EVP_PKEY_CTRL_SET1_ID:
1509 evp_pkey_ctx_free_cached_data(ctx, cmd, name);
1510 if (name != NULL) {
1511 ctx->cached_parameters.dist_id_name = OPENSSL_strdup(name);
1512 if (ctx->cached_parameters.dist_id_name == NULL)
1513 return 0;
1514 }
1515 if (data_len > 0) {
1516 ctx->cached_parameters.dist_id = OPENSSL_memdup(data, data_len);
1517 if (ctx->cached_parameters.dist_id == NULL)
1518 return 0;
1519 }
1520 ctx->cached_parameters.dist_id_set = 1;
1521 ctx->cached_parameters.dist_id_len = data_len;
1522 break;
1523 }
1524 return 1;
1525 }
1526
evp_pkey_ctx_free_cached_data(EVP_PKEY_CTX * ctx,int cmd,const char * name)1527 static void evp_pkey_ctx_free_cached_data(EVP_PKEY_CTX *ctx,
1528 int cmd, const char *name)
1529 {
1530 cmd = decode_cmd(cmd, name);
1531 switch (cmd) {
1532 case EVP_PKEY_CTRL_SET1_ID:
1533 OPENSSL_free(ctx->cached_parameters.dist_id);
1534 OPENSSL_free(ctx->cached_parameters.dist_id_name);
1535 ctx->cached_parameters.dist_id = NULL;
1536 ctx->cached_parameters.dist_id_name = NULL;
1537 break;
1538 }
1539 }
1540
evp_pkey_ctx_free_all_cached_data(EVP_PKEY_CTX * ctx)1541 static void evp_pkey_ctx_free_all_cached_data(EVP_PKEY_CTX *ctx)
1542 {
1543 evp_pkey_ctx_free_cached_data(ctx, EVP_PKEY_CTRL_SET1_ID, NULL);
1544 }
1545
evp_pkey_ctx_use_cached_data(EVP_PKEY_CTX * ctx)1546 int evp_pkey_ctx_use_cached_data(EVP_PKEY_CTX *ctx)
1547 {
1548 int ret = 1;
1549
1550 if (ret && ctx->cached_parameters.dist_id_set) {
1551 const char *name = ctx->cached_parameters.dist_id_name;
1552 const void *val = ctx->cached_parameters.dist_id;
1553 size_t len = ctx->cached_parameters.dist_id_len;
1554
1555 if (name != NULL)
1556 ret = evp_pkey_ctx_ctrl_str_int(ctx, name, val);
1557 else
1558 ret = evp_pkey_ctx_ctrl_int(ctx, -1, ctx->operation,
1559 EVP_PKEY_CTRL_SET1_ID,
1560 (int)len, (void *)val);
1561 }
1562
1563 return ret;
1564 }
1565
EVP_PKEY_CTX_get0_libctx(EVP_PKEY_CTX * ctx)1566 OSSL_LIB_CTX *EVP_PKEY_CTX_get0_libctx(EVP_PKEY_CTX *ctx)
1567 {
1568 return ctx->libctx;
1569 }
1570
EVP_PKEY_CTX_get0_propq(const EVP_PKEY_CTX * ctx)1571 const char *EVP_PKEY_CTX_get0_propq(const EVP_PKEY_CTX *ctx)
1572 {
1573 return ctx->propquery;
1574 }
1575
EVP_PKEY_CTX_get0_provider(const EVP_PKEY_CTX * ctx)1576 const OSSL_PROVIDER *EVP_PKEY_CTX_get0_provider(const EVP_PKEY_CTX *ctx)
1577 {
1578 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
1579 if (ctx->op.sig.signature != NULL)
1580 return EVP_SIGNATURE_get0_provider(ctx->op.sig.signature);
1581 } else if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
1582 if (ctx->op.kex.exchange != NULL)
1583 return EVP_KEYEXCH_get0_provider(ctx->op.kex.exchange);
1584 } else if (EVP_PKEY_CTX_IS_KEM_OP(ctx)) {
1585 if (ctx->op.encap.kem != NULL)
1586 return EVP_KEM_get0_provider(ctx->op.encap.kem);
1587 } else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)) {
1588 if (ctx->op.ciph.cipher != NULL)
1589 return EVP_ASYM_CIPHER_get0_provider(ctx->op.ciph.cipher);
1590 } else if (EVP_PKEY_CTX_IS_GEN_OP(ctx)) {
1591 if (ctx->keymgmt != NULL)
1592 return EVP_KEYMGMT_get0_provider(ctx->keymgmt);
1593 }
1594
1595 return NULL;
1596 }
1597
1598 /* Utility functions to send a string of hex string to a ctrl */
1599
EVP_PKEY_CTX_str2ctrl(EVP_PKEY_CTX * ctx,int cmd,const char * str)1600 int EVP_PKEY_CTX_str2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *str)
1601 {
1602 size_t len;
1603
1604 len = strlen(str);
1605 if (len > INT_MAX)
1606 return -1;
1607 return ctx->pmeth->ctrl(ctx, cmd, len, (void *)str);
1608 }
1609
EVP_PKEY_CTX_hex2ctrl(EVP_PKEY_CTX * ctx,int cmd,const char * hex)1610 int EVP_PKEY_CTX_hex2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *hex)
1611 {
1612 unsigned char *bin;
1613 long binlen;
1614 int rv = -1;
1615
1616 bin = OPENSSL_hexstr2buf(hex, &binlen);
1617 if (bin == NULL)
1618 return 0;
1619 if (binlen <= INT_MAX)
1620 rv = ctx->pmeth->ctrl(ctx, cmd, binlen, bin);
1621 OPENSSL_free(bin);
1622 return rv;
1623 }
1624
1625 /* Pass a message digest to a ctrl */
EVP_PKEY_CTX_md(EVP_PKEY_CTX * ctx,int optype,int cmd,const char * md)1626 int EVP_PKEY_CTX_md(EVP_PKEY_CTX *ctx, int optype, int cmd, const char *md)
1627 {
1628 const EVP_MD *m;
1629
1630 if (md == NULL || (m = EVP_get_digestbyname(md)) == NULL) {
1631 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_DIGEST);
1632 return 0;
1633 }
1634 return EVP_PKEY_CTX_ctrl(ctx, -1, optype, cmd, 0, (void *)m);
1635 }
1636
EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX * ctx)1637 int EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX *ctx)
1638 {
1639 return ctx->operation;
1640 }
1641
EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX * ctx,int * dat,int datlen)1642 void EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX *ctx, int *dat, int datlen)
1643 {
1644 ctx->keygen_info = dat;
1645 ctx->keygen_info_count = datlen;
1646 }
1647
EVP_PKEY_CTX_set_data(EVP_PKEY_CTX * ctx,void * data)1648 void EVP_PKEY_CTX_set_data(EVP_PKEY_CTX *ctx, void *data)
1649 {
1650 ctx->data = data;
1651 }
1652
EVP_PKEY_CTX_get_data(const EVP_PKEY_CTX * ctx)1653 void *EVP_PKEY_CTX_get_data(const EVP_PKEY_CTX *ctx)
1654 {
1655 return ctx->data;
1656 }
1657
EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX * ctx)1658 EVP_PKEY *EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX *ctx)
1659 {
1660 return ctx->pkey;
1661 }
1662
EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX * ctx)1663 EVP_PKEY *EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX *ctx)
1664 {
1665 return ctx->peerkey;
1666 }
1667
EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX * ctx,void * data)1668 void EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX *ctx, void *data)
1669 {
1670 ctx->app_data = data;
1671 }
1672
EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX * ctx)1673 void *EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX *ctx)
1674 {
1675 return ctx->app_data;
1676 }
1677
EVP_PKEY_meth_set_init(EVP_PKEY_METHOD * pmeth,int (* init)(EVP_PKEY_CTX * ctx))1678 void EVP_PKEY_meth_set_init(EVP_PKEY_METHOD *pmeth,
1679 int (*init) (EVP_PKEY_CTX *ctx))
1680 {
1681 pmeth->init = init;
1682 }
1683
EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD * pmeth,int (* copy)(EVP_PKEY_CTX * dst,const EVP_PKEY_CTX * src))1684 void EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD *pmeth,
1685 int (*copy) (EVP_PKEY_CTX *dst,
1686 const EVP_PKEY_CTX *src))
1687 {
1688 pmeth->copy = copy;
1689 }
1690
EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD * pmeth,void (* cleanup)(EVP_PKEY_CTX * ctx))1691 void EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD *pmeth,
1692 void (*cleanup) (EVP_PKEY_CTX *ctx))
1693 {
1694 pmeth->cleanup = cleanup;
1695 }
1696
EVP_PKEY_meth_set_paramgen(EVP_PKEY_METHOD * pmeth,int (* paramgen_init)(EVP_PKEY_CTX * ctx),int (* paramgen)(EVP_PKEY_CTX * ctx,EVP_PKEY * pkey))1697 void EVP_PKEY_meth_set_paramgen(EVP_PKEY_METHOD *pmeth,
1698 int (*paramgen_init) (EVP_PKEY_CTX *ctx),
1699 int (*paramgen) (EVP_PKEY_CTX *ctx,
1700 EVP_PKEY *pkey))
1701 {
1702 pmeth->paramgen_init = paramgen_init;
1703 pmeth->paramgen = paramgen;
1704 }
1705
EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD * pmeth,int (* keygen_init)(EVP_PKEY_CTX * ctx),int (* keygen)(EVP_PKEY_CTX * ctx,EVP_PKEY * pkey))1706 void EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD *pmeth,
1707 int (*keygen_init) (EVP_PKEY_CTX *ctx),
1708 int (*keygen) (EVP_PKEY_CTX *ctx,
1709 EVP_PKEY *pkey))
1710 {
1711 pmeth->keygen_init = keygen_init;
1712 pmeth->keygen = keygen;
1713 }
1714
EVP_PKEY_meth_set_sign(EVP_PKEY_METHOD * pmeth,int (* sign_init)(EVP_PKEY_CTX * ctx),int (* sign)(EVP_PKEY_CTX * ctx,unsigned char * sig,size_t * siglen,const unsigned char * tbs,size_t tbslen))1715 void EVP_PKEY_meth_set_sign(EVP_PKEY_METHOD *pmeth,
1716 int (*sign_init) (EVP_PKEY_CTX *ctx),
1717 int (*sign) (EVP_PKEY_CTX *ctx,
1718 unsigned char *sig, size_t *siglen,
1719 const unsigned char *tbs,
1720 size_t tbslen))
1721 {
1722 pmeth->sign_init = sign_init;
1723 pmeth->sign = sign;
1724 }
1725
EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD * pmeth,int (* verify_init)(EVP_PKEY_CTX * ctx),int (* verify)(EVP_PKEY_CTX * ctx,const unsigned char * sig,size_t siglen,const unsigned char * tbs,size_t tbslen))1726 void EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD *pmeth,
1727 int (*verify_init) (EVP_PKEY_CTX *ctx),
1728 int (*verify) (EVP_PKEY_CTX *ctx,
1729 const unsigned char *sig,
1730 size_t siglen,
1731 const unsigned char *tbs,
1732 size_t tbslen))
1733 {
1734 pmeth->verify_init = verify_init;
1735 pmeth->verify = verify;
1736 }
1737
EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD * pmeth,int (* verify_recover_init)(EVP_PKEY_CTX * ctx),int (* verify_recover)(EVP_PKEY_CTX * ctx,unsigned char * sig,size_t * siglen,const unsigned char * tbs,size_t tbslen))1738 void EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD *pmeth,
1739 int (*verify_recover_init) (EVP_PKEY_CTX
1740 *ctx),
1741 int (*verify_recover) (EVP_PKEY_CTX
1742 *ctx,
1743 unsigned char
1744 *sig,
1745 size_t *siglen,
1746 const unsigned
1747 char *tbs,
1748 size_t tbslen))
1749 {
1750 pmeth->verify_recover_init = verify_recover_init;
1751 pmeth->verify_recover = verify_recover;
1752 }
1753
EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD * pmeth,int (* signctx_init)(EVP_PKEY_CTX * ctx,EVP_MD_CTX * mctx),int (* signctx)(EVP_PKEY_CTX * ctx,unsigned char * sig,size_t * siglen,EVP_MD_CTX * mctx))1754 void EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD *pmeth,
1755 int (*signctx_init) (EVP_PKEY_CTX *ctx,
1756 EVP_MD_CTX *mctx),
1757 int (*signctx) (EVP_PKEY_CTX *ctx,
1758 unsigned char *sig,
1759 size_t *siglen,
1760 EVP_MD_CTX *mctx))
1761 {
1762 pmeth->signctx_init = signctx_init;
1763 pmeth->signctx = signctx;
1764 }
1765
EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD * pmeth,int (* verifyctx_init)(EVP_PKEY_CTX * ctx,EVP_MD_CTX * mctx),int (* verifyctx)(EVP_PKEY_CTX * ctx,const unsigned char * sig,int siglen,EVP_MD_CTX * mctx))1766 void EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD *pmeth,
1767 int (*verifyctx_init) (EVP_PKEY_CTX *ctx,
1768 EVP_MD_CTX *mctx),
1769 int (*verifyctx) (EVP_PKEY_CTX *ctx,
1770 const unsigned char *sig,
1771 int siglen,
1772 EVP_MD_CTX *mctx))
1773 {
1774 pmeth->verifyctx_init = verifyctx_init;
1775 pmeth->verifyctx = verifyctx;
1776 }
1777
EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD * pmeth,int (* encrypt_init)(EVP_PKEY_CTX * ctx),int (* encryptfn)(EVP_PKEY_CTX * ctx,unsigned char * out,size_t * outlen,const unsigned char * in,size_t inlen))1778 void EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD *pmeth,
1779 int (*encrypt_init) (EVP_PKEY_CTX *ctx),
1780 int (*encryptfn) (EVP_PKEY_CTX *ctx,
1781 unsigned char *out,
1782 size_t *outlen,
1783 const unsigned char *in,
1784 size_t inlen))
1785 {
1786 pmeth->encrypt_init = encrypt_init;
1787 pmeth->encrypt = encryptfn;
1788 }
1789
EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD * pmeth,int (* decrypt_init)(EVP_PKEY_CTX * ctx),int (* decrypt)(EVP_PKEY_CTX * ctx,unsigned char * out,size_t * outlen,const unsigned char * in,size_t inlen))1790 void EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD *pmeth,
1791 int (*decrypt_init) (EVP_PKEY_CTX *ctx),
1792 int (*decrypt) (EVP_PKEY_CTX *ctx,
1793 unsigned char *out,
1794 size_t *outlen,
1795 const unsigned char *in,
1796 size_t inlen))
1797 {
1798 pmeth->decrypt_init = decrypt_init;
1799 pmeth->decrypt = decrypt;
1800 }
1801
EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD * pmeth,int (* derive_init)(EVP_PKEY_CTX * ctx),int (* derive)(EVP_PKEY_CTX * ctx,unsigned char * key,size_t * keylen))1802 void EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD *pmeth,
1803 int (*derive_init) (EVP_PKEY_CTX *ctx),
1804 int (*derive) (EVP_PKEY_CTX *ctx,
1805 unsigned char *key,
1806 size_t *keylen))
1807 {
1808 pmeth->derive_init = derive_init;
1809 pmeth->derive = derive;
1810 }
1811
EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD * pmeth,int (* ctrl)(EVP_PKEY_CTX * ctx,int type,int p1,void * p2),int (* ctrl_str)(EVP_PKEY_CTX * ctx,const char * type,const char * value))1812 void EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD *pmeth,
1813 int (*ctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
1814 void *p2),
1815 int (*ctrl_str) (EVP_PKEY_CTX *ctx,
1816 const char *type,
1817 const char *value))
1818 {
1819 pmeth->ctrl = ctrl;
1820 pmeth->ctrl_str = ctrl_str;
1821 }
1822
EVP_PKEY_meth_set_digestsign(EVP_PKEY_METHOD * pmeth,int (* digestsign)(EVP_MD_CTX * ctx,unsigned char * sig,size_t * siglen,const unsigned char * tbs,size_t tbslen))1823 void EVP_PKEY_meth_set_digestsign(EVP_PKEY_METHOD *pmeth,
1824 int (*digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen,
1825 const unsigned char *tbs, size_t tbslen))
1826 {
1827 pmeth->digestsign = digestsign;
1828 }
1829
EVP_PKEY_meth_set_digestverify(EVP_PKEY_METHOD * pmeth,int (* digestverify)(EVP_MD_CTX * ctx,const unsigned char * sig,size_t siglen,const unsigned char * tbs,size_t tbslen))1830 void EVP_PKEY_meth_set_digestverify(EVP_PKEY_METHOD *pmeth,
1831 int (*digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig,
1832 size_t siglen, const unsigned char *tbs,
1833 size_t tbslen))
1834 {
1835 pmeth->digestverify = digestverify;
1836 }
1837
EVP_PKEY_meth_set_check(EVP_PKEY_METHOD * pmeth,int (* check)(EVP_PKEY * pkey))1838 void EVP_PKEY_meth_set_check(EVP_PKEY_METHOD *pmeth,
1839 int (*check) (EVP_PKEY *pkey))
1840 {
1841 pmeth->check = check;
1842 }
1843
EVP_PKEY_meth_set_public_check(EVP_PKEY_METHOD * pmeth,int (* check)(EVP_PKEY * pkey))1844 void EVP_PKEY_meth_set_public_check(EVP_PKEY_METHOD *pmeth,
1845 int (*check) (EVP_PKEY *pkey))
1846 {
1847 pmeth->public_check = check;
1848 }
1849
EVP_PKEY_meth_set_param_check(EVP_PKEY_METHOD * pmeth,int (* check)(EVP_PKEY * pkey))1850 void EVP_PKEY_meth_set_param_check(EVP_PKEY_METHOD *pmeth,
1851 int (*check) (EVP_PKEY *pkey))
1852 {
1853 pmeth->param_check = check;
1854 }
1855
EVP_PKEY_meth_set_digest_custom(EVP_PKEY_METHOD * pmeth,int (* digest_custom)(EVP_PKEY_CTX * ctx,EVP_MD_CTX * mctx))1856 void EVP_PKEY_meth_set_digest_custom(EVP_PKEY_METHOD *pmeth,
1857 int (*digest_custom) (EVP_PKEY_CTX *ctx,
1858 EVP_MD_CTX *mctx))
1859 {
1860 pmeth->digest_custom = digest_custom;
1861 }
1862
EVP_PKEY_meth_get_init(const EVP_PKEY_METHOD * pmeth,int (** pinit)(EVP_PKEY_CTX * ctx))1863 void EVP_PKEY_meth_get_init(const EVP_PKEY_METHOD *pmeth,
1864 int (**pinit) (EVP_PKEY_CTX *ctx))
1865 {
1866 *pinit = pmeth->init;
1867 }
1868
EVP_PKEY_meth_get_copy(const EVP_PKEY_METHOD * pmeth,int (** pcopy)(EVP_PKEY_CTX * dst,const EVP_PKEY_CTX * src))1869 void EVP_PKEY_meth_get_copy(const EVP_PKEY_METHOD *pmeth,
1870 int (**pcopy) (EVP_PKEY_CTX *dst,
1871 const EVP_PKEY_CTX *src))
1872 {
1873 *pcopy = pmeth->copy;
1874 }
1875
EVP_PKEY_meth_get_cleanup(const EVP_PKEY_METHOD * pmeth,void (** pcleanup)(EVP_PKEY_CTX * ctx))1876 void EVP_PKEY_meth_get_cleanup(const EVP_PKEY_METHOD *pmeth,
1877 void (**pcleanup) (EVP_PKEY_CTX *ctx))
1878 {
1879 *pcleanup = pmeth->cleanup;
1880 }
1881
EVP_PKEY_meth_get_paramgen(const EVP_PKEY_METHOD * pmeth,int (** pparamgen_init)(EVP_PKEY_CTX * ctx),int (** pparamgen)(EVP_PKEY_CTX * ctx,EVP_PKEY * pkey))1882 void EVP_PKEY_meth_get_paramgen(const EVP_PKEY_METHOD *pmeth,
1883 int (**pparamgen_init) (EVP_PKEY_CTX *ctx),
1884 int (**pparamgen) (EVP_PKEY_CTX *ctx,
1885 EVP_PKEY *pkey))
1886 {
1887 if (pparamgen_init)
1888 *pparamgen_init = pmeth->paramgen_init;
1889 if (pparamgen)
1890 *pparamgen = pmeth->paramgen;
1891 }
1892
EVP_PKEY_meth_get_keygen(const EVP_PKEY_METHOD * pmeth,int (** pkeygen_init)(EVP_PKEY_CTX * ctx),int (** pkeygen)(EVP_PKEY_CTX * ctx,EVP_PKEY * pkey))1893 void EVP_PKEY_meth_get_keygen(const EVP_PKEY_METHOD *pmeth,
1894 int (**pkeygen_init) (EVP_PKEY_CTX *ctx),
1895 int (**pkeygen) (EVP_PKEY_CTX *ctx,
1896 EVP_PKEY *pkey))
1897 {
1898 if (pkeygen_init)
1899 *pkeygen_init = pmeth->keygen_init;
1900 if (pkeygen)
1901 *pkeygen = pmeth->keygen;
1902 }
1903
EVP_PKEY_meth_get_sign(const EVP_PKEY_METHOD * pmeth,int (** psign_init)(EVP_PKEY_CTX * ctx),int (** psign)(EVP_PKEY_CTX * ctx,unsigned char * sig,size_t * siglen,const unsigned char * tbs,size_t tbslen))1904 void EVP_PKEY_meth_get_sign(const EVP_PKEY_METHOD *pmeth,
1905 int (**psign_init) (EVP_PKEY_CTX *ctx),
1906 int (**psign) (EVP_PKEY_CTX *ctx,
1907 unsigned char *sig, size_t *siglen,
1908 const unsigned char *tbs,
1909 size_t tbslen))
1910 {
1911 if (psign_init)
1912 *psign_init = pmeth->sign_init;
1913 if (psign)
1914 *psign = pmeth->sign;
1915 }
1916
EVP_PKEY_meth_get_verify(const EVP_PKEY_METHOD * pmeth,int (** pverify_init)(EVP_PKEY_CTX * ctx),int (** pverify)(EVP_PKEY_CTX * ctx,const unsigned char * sig,size_t siglen,const unsigned char * tbs,size_t tbslen))1917 void EVP_PKEY_meth_get_verify(const EVP_PKEY_METHOD *pmeth,
1918 int (**pverify_init) (EVP_PKEY_CTX *ctx),
1919 int (**pverify) (EVP_PKEY_CTX *ctx,
1920 const unsigned char *sig,
1921 size_t siglen,
1922 const unsigned char *tbs,
1923 size_t tbslen))
1924 {
1925 if (pverify_init)
1926 *pverify_init = pmeth->verify_init;
1927 if (pverify)
1928 *pverify = pmeth->verify;
1929 }
1930
EVP_PKEY_meth_get_verify_recover(const EVP_PKEY_METHOD * pmeth,int (** pverify_recover_init)(EVP_PKEY_CTX * ctx),int (** pverify_recover)(EVP_PKEY_CTX * ctx,unsigned char * sig,size_t * siglen,const unsigned char * tbs,size_t tbslen))1931 void EVP_PKEY_meth_get_verify_recover(const EVP_PKEY_METHOD *pmeth,
1932 int (**pverify_recover_init) (EVP_PKEY_CTX
1933 *ctx),
1934 int (**pverify_recover) (EVP_PKEY_CTX
1935 *ctx,
1936 unsigned char
1937 *sig,
1938 size_t *siglen,
1939 const unsigned
1940 char *tbs,
1941 size_t tbslen))
1942 {
1943 if (pverify_recover_init)
1944 *pverify_recover_init = pmeth->verify_recover_init;
1945 if (pverify_recover)
1946 *pverify_recover = pmeth->verify_recover;
1947 }
1948
EVP_PKEY_meth_get_signctx(const EVP_PKEY_METHOD * pmeth,int (** psignctx_init)(EVP_PKEY_CTX * ctx,EVP_MD_CTX * mctx),int (** psignctx)(EVP_PKEY_CTX * ctx,unsigned char * sig,size_t * siglen,EVP_MD_CTX * mctx))1949 void EVP_PKEY_meth_get_signctx(const EVP_PKEY_METHOD *pmeth,
1950 int (**psignctx_init) (EVP_PKEY_CTX *ctx,
1951 EVP_MD_CTX *mctx),
1952 int (**psignctx) (EVP_PKEY_CTX *ctx,
1953 unsigned char *sig,
1954 size_t *siglen,
1955 EVP_MD_CTX *mctx))
1956 {
1957 if (psignctx_init)
1958 *psignctx_init = pmeth->signctx_init;
1959 if (psignctx)
1960 *psignctx = pmeth->signctx;
1961 }
1962
EVP_PKEY_meth_get_verifyctx(const EVP_PKEY_METHOD * pmeth,int (** pverifyctx_init)(EVP_PKEY_CTX * ctx,EVP_MD_CTX * mctx),int (** pverifyctx)(EVP_PKEY_CTX * ctx,const unsigned char * sig,int siglen,EVP_MD_CTX * mctx))1963 void EVP_PKEY_meth_get_verifyctx(const EVP_PKEY_METHOD *pmeth,
1964 int (**pverifyctx_init) (EVP_PKEY_CTX *ctx,
1965 EVP_MD_CTX *mctx),
1966 int (**pverifyctx) (EVP_PKEY_CTX *ctx,
1967 const unsigned char *sig,
1968 int siglen,
1969 EVP_MD_CTX *mctx))
1970 {
1971 if (pverifyctx_init)
1972 *pverifyctx_init = pmeth->verifyctx_init;
1973 if (pverifyctx)
1974 *pverifyctx = pmeth->verifyctx;
1975 }
1976
EVP_PKEY_meth_get_encrypt(const EVP_PKEY_METHOD * pmeth,int (** pencrypt_init)(EVP_PKEY_CTX * ctx),int (** pencryptfn)(EVP_PKEY_CTX * ctx,unsigned char * out,size_t * outlen,const unsigned char * in,size_t inlen))1977 void EVP_PKEY_meth_get_encrypt(const EVP_PKEY_METHOD *pmeth,
1978 int (**pencrypt_init) (EVP_PKEY_CTX *ctx),
1979 int (**pencryptfn) (EVP_PKEY_CTX *ctx,
1980 unsigned char *out,
1981 size_t *outlen,
1982 const unsigned char *in,
1983 size_t inlen))
1984 {
1985 if (pencrypt_init)
1986 *pencrypt_init = pmeth->encrypt_init;
1987 if (pencryptfn)
1988 *pencryptfn = pmeth->encrypt;
1989 }
1990
EVP_PKEY_meth_get_decrypt(const EVP_PKEY_METHOD * pmeth,int (** pdecrypt_init)(EVP_PKEY_CTX * ctx),int (** pdecrypt)(EVP_PKEY_CTX * ctx,unsigned char * out,size_t * outlen,const unsigned char * in,size_t inlen))1991 void EVP_PKEY_meth_get_decrypt(const EVP_PKEY_METHOD *pmeth,
1992 int (**pdecrypt_init) (EVP_PKEY_CTX *ctx),
1993 int (**pdecrypt) (EVP_PKEY_CTX *ctx,
1994 unsigned char *out,
1995 size_t *outlen,
1996 const unsigned char *in,
1997 size_t inlen))
1998 {
1999 if (pdecrypt_init)
2000 *pdecrypt_init = pmeth->decrypt_init;
2001 if (pdecrypt)
2002 *pdecrypt = pmeth->decrypt;
2003 }
2004
EVP_PKEY_meth_get_derive(const EVP_PKEY_METHOD * pmeth,int (** pderive_init)(EVP_PKEY_CTX * ctx),int (** pderive)(EVP_PKEY_CTX * ctx,unsigned char * key,size_t * keylen))2005 void EVP_PKEY_meth_get_derive(const EVP_PKEY_METHOD *pmeth,
2006 int (**pderive_init) (EVP_PKEY_CTX *ctx),
2007 int (**pderive) (EVP_PKEY_CTX *ctx,
2008 unsigned char *key,
2009 size_t *keylen))
2010 {
2011 if (pderive_init)
2012 *pderive_init = pmeth->derive_init;
2013 if (pderive)
2014 *pderive = pmeth->derive;
2015 }
2016
EVP_PKEY_meth_get_ctrl(const EVP_PKEY_METHOD * pmeth,int (** pctrl)(EVP_PKEY_CTX * ctx,int type,int p1,void * p2),int (** pctrl_str)(EVP_PKEY_CTX * ctx,const char * type,const char * value))2017 void EVP_PKEY_meth_get_ctrl(const EVP_PKEY_METHOD *pmeth,
2018 int (**pctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
2019 void *p2),
2020 int (**pctrl_str) (EVP_PKEY_CTX *ctx,
2021 const char *type,
2022 const char *value))
2023 {
2024 if (pctrl)
2025 *pctrl = pmeth->ctrl;
2026 if (pctrl_str)
2027 *pctrl_str = pmeth->ctrl_str;
2028 }
2029
EVP_PKEY_meth_get_digestsign(const EVP_PKEY_METHOD * pmeth,int (** digestsign)(EVP_MD_CTX * ctx,unsigned char * sig,size_t * siglen,const unsigned char * tbs,size_t tbslen))2030 void EVP_PKEY_meth_get_digestsign(const EVP_PKEY_METHOD *pmeth,
2031 int (**digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen,
2032 const unsigned char *tbs, size_t tbslen))
2033 {
2034 if (digestsign)
2035 *digestsign = pmeth->digestsign;
2036 }
2037
EVP_PKEY_meth_get_digestverify(const EVP_PKEY_METHOD * pmeth,int (** digestverify)(EVP_MD_CTX * ctx,const unsigned char * sig,size_t siglen,const unsigned char * tbs,size_t tbslen))2038 void EVP_PKEY_meth_get_digestverify(const EVP_PKEY_METHOD *pmeth,
2039 int (**digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig,
2040 size_t siglen, const unsigned char *tbs,
2041 size_t tbslen))
2042 {
2043 if (digestverify)
2044 *digestverify = pmeth->digestverify;
2045 }
2046
EVP_PKEY_meth_get_check(const EVP_PKEY_METHOD * pmeth,int (** pcheck)(EVP_PKEY * pkey))2047 void EVP_PKEY_meth_get_check(const EVP_PKEY_METHOD *pmeth,
2048 int (**pcheck) (EVP_PKEY *pkey))
2049 {
2050 if (pcheck != NULL)
2051 *pcheck = pmeth->check;
2052 }
2053
EVP_PKEY_meth_get_public_check(const EVP_PKEY_METHOD * pmeth,int (** pcheck)(EVP_PKEY * pkey))2054 void EVP_PKEY_meth_get_public_check(const EVP_PKEY_METHOD *pmeth,
2055 int (**pcheck) (EVP_PKEY *pkey))
2056 {
2057 if (pcheck != NULL)
2058 *pcheck = pmeth->public_check;
2059 }
2060
EVP_PKEY_meth_get_param_check(const EVP_PKEY_METHOD * pmeth,int (** pcheck)(EVP_PKEY * pkey))2061 void EVP_PKEY_meth_get_param_check(const EVP_PKEY_METHOD *pmeth,
2062 int (**pcheck) (EVP_PKEY *pkey))
2063 {
2064 if (pcheck != NULL)
2065 *pcheck = pmeth->param_check;
2066 }
2067
EVP_PKEY_meth_get_digest_custom(const EVP_PKEY_METHOD * pmeth,int (** pdigest_custom)(EVP_PKEY_CTX * ctx,EVP_MD_CTX * mctx))2068 void EVP_PKEY_meth_get_digest_custom(const EVP_PKEY_METHOD *pmeth,
2069 int (**pdigest_custom) (EVP_PKEY_CTX *ctx,
2070 EVP_MD_CTX *mctx))
2071 {
2072 if (pdigest_custom != NULL)
2073 *pdigest_custom = pmeth->digest_custom;
2074 }
2075
2076 #endif /* FIPS_MODULE */
2077