1 /*
2 * Copyright 2006-2024 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10 /*
11 * Low level key APIs (DH etc) are deprecated for public use, but still ok for
12 * internal use.
13 */
14 #include "internal/deprecated.h"
15
16 #include <stdio.h>
17 #include <stdlib.h>
18 #ifndef FIPS_MODULE
19 # include <openssl/engine.h>
20 #endif
21 #include <openssl/evp.h>
22 #include <openssl/core_names.h>
23 #include <openssl/dh.h>
24 #include <openssl/rsa.h>
25 #include <openssl/kdf.h>
26 #include "internal/cryptlib.h"
27 #ifndef FIPS_MODULE
28 # include "crypto/asn1.h"
29 #endif
30 #include "crypto/evp.h"
31 #include "crypto/dh.h"
32 #include "crypto/ec.h"
33 #include "internal/ffc.h"
34 #include "internal/numbers.h"
35 #include "internal/provider.h"
36 #include "evp_local.h"
37
38 #ifndef FIPS_MODULE
39
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 ret->pkey = pkey;
325 if (pkey != NULL)
326 EVP_PKEY_up_ref(pkey);
327
328 if (pmeth != NULL && pmeth->init != NULL) {
329 if (pmeth->init(ret) <= 0) {
330 ret->pmeth = NULL;
331 EVP_PKEY_CTX_free(ret);
332 return NULL;
333 }
334 }
335
336 return ret;
337 }
338
339 /*- All methods below can also be used in FIPS_MODULE */
340
EVP_PKEY_CTX_new_from_name(OSSL_LIB_CTX * libctx,const char * name,const char * propquery)341 EVP_PKEY_CTX *EVP_PKEY_CTX_new_from_name(OSSL_LIB_CTX *libctx,
342 const char *name,
343 const char *propquery)
344 {
345 return int_ctx_new(libctx, NULL, NULL, name, propquery, -1);
346 }
347
EVP_PKEY_CTX_new_from_pkey(OSSL_LIB_CTX * libctx,EVP_PKEY * pkey,const char * propquery)348 EVP_PKEY_CTX *EVP_PKEY_CTX_new_from_pkey(OSSL_LIB_CTX *libctx, EVP_PKEY *pkey,
349 const char *propquery)
350 {
351 return int_ctx_new(libctx, pkey, NULL, NULL, propquery, -1);
352 }
353
evp_pkey_ctx_free_old_ops(EVP_PKEY_CTX * ctx)354 void evp_pkey_ctx_free_old_ops(EVP_PKEY_CTX *ctx)
355 {
356 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
357 if (ctx->op.sig.algctx != NULL && ctx->op.sig.signature != NULL)
358 ctx->op.sig.signature->freectx(ctx->op.sig.algctx);
359 EVP_SIGNATURE_free(ctx->op.sig.signature);
360 ctx->op.sig.algctx = NULL;
361 ctx->op.sig.signature = NULL;
362 } else if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
363 if (ctx->op.kex.algctx != NULL && ctx->op.kex.exchange != NULL)
364 ctx->op.kex.exchange->freectx(ctx->op.kex.algctx);
365 EVP_KEYEXCH_free(ctx->op.kex.exchange);
366 ctx->op.kex.algctx = NULL;
367 ctx->op.kex.exchange = NULL;
368 } else if (EVP_PKEY_CTX_IS_KEM_OP(ctx)) {
369 if (ctx->op.encap.algctx != NULL && ctx->op.encap.kem != NULL)
370 ctx->op.encap.kem->freectx(ctx->op.encap.algctx);
371 EVP_KEM_free(ctx->op.encap.kem);
372 ctx->op.encap.algctx = NULL;
373 ctx->op.encap.kem = NULL;
374 }
375 else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)) {
376 if (ctx->op.ciph.algctx != NULL && ctx->op.ciph.cipher != NULL)
377 ctx->op.ciph.cipher->freectx(ctx->op.ciph.algctx);
378 EVP_ASYM_CIPHER_free(ctx->op.ciph.cipher);
379 ctx->op.ciph.algctx = NULL;
380 ctx->op.ciph.cipher = NULL;
381 } else if (EVP_PKEY_CTX_IS_GEN_OP(ctx)) {
382 if (ctx->op.keymgmt.genctx != NULL && ctx->keymgmt != NULL)
383 evp_keymgmt_gen_cleanup(ctx->keymgmt, ctx->op.keymgmt.genctx);
384 }
385 }
386
EVP_PKEY_CTX_free(EVP_PKEY_CTX * ctx)387 void EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx)
388 {
389 if (ctx == NULL)
390 return;
391 if (ctx->pmeth && ctx->pmeth->cleanup)
392 ctx->pmeth->cleanup(ctx);
393
394 evp_pkey_ctx_free_old_ops(ctx);
395 #ifndef FIPS_MODULE
396 evp_pkey_ctx_free_all_cached_data(ctx);
397 #endif
398 EVP_KEYMGMT_free(ctx->keymgmt);
399
400 OPENSSL_free(ctx->propquery);
401 EVP_PKEY_free(ctx->pkey);
402 EVP_PKEY_free(ctx->peerkey);
403 #if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODULE)
404 ENGINE_finish(ctx->engine);
405 #endif
406 BN_free(ctx->rsa_pubexp);
407 OPENSSL_free(ctx);
408 }
409
410 #ifndef FIPS_MODULE
411
EVP_PKEY_meth_get0_info(int * ppkey_id,int * pflags,const EVP_PKEY_METHOD * meth)412 void EVP_PKEY_meth_get0_info(int *ppkey_id, int *pflags,
413 const EVP_PKEY_METHOD *meth)
414 {
415 if (ppkey_id)
416 *ppkey_id = meth->pkey_id;
417 if (pflags)
418 *pflags = meth->flags;
419 }
420
EVP_PKEY_meth_copy(EVP_PKEY_METHOD * dst,const EVP_PKEY_METHOD * src)421 void EVP_PKEY_meth_copy(EVP_PKEY_METHOD *dst, const EVP_PKEY_METHOD *src)
422 {
423 int pkey_id = dst->pkey_id;
424 int flags = dst->flags;
425
426 *dst = *src;
427
428 /* We only copy the function pointers so restore the other values */
429 dst->pkey_id = pkey_id;
430 dst->flags = flags;
431 }
432
EVP_PKEY_meth_free(EVP_PKEY_METHOD * pmeth)433 void EVP_PKEY_meth_free(EVP_PKEY_METHOD *pmeth)
434 {
435 if (pmeth && (pmeth->flags & EVP_PKEY_FLAG_DYNAMIC))
436 OPENSSL_free(pmeth);
437 }
438
EVP_PKEY_CTX_new(EVP_PKEY * pkey,ENGINE * e)439 EVP_PKEY_CTX *EVP_PKEY_CTX_new(EVP_PKEY *pkey, ENGINE *e)
440 {
441 return int_ctx_new(NULL, pkey, e, NULL, NULL, -1);
442 }
443
EVP_PKEY_CTX_new_id(int id,ENGINE * e)444 EVP_PKEY_CTX *EVP_PKEY_CTX_new_id(int id, ENGINE *e)
445 {
446 return int_ctx_new(NULL, NULL, e, NULL, NULL, id);
447 }
448
EVP_PKEY_CTX_dup(const EVP_PKEY_CTX * pctx)449 EVP_PKEY_CTX *EVP_PKEY_CTX_dup(const EVP_PKEY_CTX *pctx)
450 {
451 EVP_PKEY_CTX *rctx;
452
453 # ifndef OPENSSL_NO_ENGINE
454 /* Make sure it's safe to copy a pkey context using an ENGINE */
455 if (pctx->engine && !ENGINE_init(pctx->engine)) {
456 ERR_raise(ERR_LIB_EVP, ERR_R_ENGINE_LIB);
457 return 0;
458 }
459 # endif
460 rctx = OPENSSL_zalloc(sizeof(*rctx));
461 if (rctx == NULL)
462 return NULL;
463
464 if (pctx->pkey != NULL)
465 EVP_PKEY_up_ref(pctx->pkey);
466 rctx->pkey = pctx->pkey;
467 rctx->operation = pctx->operation;
468 rctx->libctx = pctx->libctx;
469 rctx->keytype = pctx->keytype;
470 rctx->propquery = NULL;
471 if (pctx->propquery != NULL) {
472 rctx->propquery = OPENSSL_strdup(pctx->propquery);
473 if (rctx->propquery == NULL)
474 goto err;
475 }
476 rctx->legacy_keytype = pctx->legacy_keytype;
477
478 if (EVP_PKEY_CTX_IS_DERIVE_OP(pctx)) {
479 if (pctx->op.kex.exchange != NULL) {
480 rctx->op.kex.exchange = pctx->op.kex.exchange;
481 if (!EVP_KEYEXCH_up_ref(rctx->op.kex.exchange))
482 goto err;
483 }
484 if (pctx->op.kex.algctx != NULL) {
485 if (!ossl_assert(pctx->op.kex.exchange != NULL))
486 goto err;
487
488 if (pctx->op.kex.exchange->dupctx != NULL)
489 rctx->op.kex.algctx
490 = pctx->op.kex.exchange->dupctx(pctx->op.kex.algctx);
491
492 if (rctx->op.kex.algctx == NULL) {
493 EVP_KEYEXCH_free(rctx->op.kex.exchange);
494 rctx->op.kex.exchange = NULL;
495 goto err;
496 }
497 return rctx;
498 }
499 } else if (EVP_PKEY_CTX_IS_SIGNATURE_OP(pctx)) {
500 if (pctx->op.sig.signature != NULL) {
501 rctx->op.sig.signature = pctx->op.sig.signature;
502 if (!EVP_SIGNATURE_up_ref(rctx->op.sig.signature))
503 goto err;
504 }
505 if (pctx->op.sig.algctx != NULL) {
506 if (!ossl_assert(pctx->op.sig.signature != NULL))
507 goto err;
508
509 if (pctx->op.sig.signature->dupctx != NULL)
510 rctx->op.sig.algctx
511 = pctx->op.sig.signature->dupctx(pctx->op.sig.algctx);
512
513 if (rctx->op.sig.algctx == NULL) {
514 EVP_SIGNATURE_free(rctx->op.sig.signature);
515 rctx->op.sig.signature = NULL;
516 goto err;
517 }
518 return rctx;
519 }
520 } else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(pctx)) {
521 if (pctx->op.ciph.cipher != NULL) {
522 rctx->op.ciph.cipher = pctx->op.ciph.cipher;
523 if (!EVP_ASYM_CIPHER_up_ref(rctx->op.ciph.cipher))
524 goto err;
525 }
526 if (pctx->op.ciph.algctx != NULL) {
527 if (!ossl_assert(pctx->op.ciph.cipher != NULL))
528 goto err;
529
530 if (pctx->op.ciph.cipher->dupctx != NULL)
531 rctx->op.ciph.algctx
532 = pctx->op.ciph.cipher->dupctx(pctx->op.ciph.algctx);
533
534 if (rctx->op.ciph.algctx == NULL) {
535 EVP_ASYM_CIPHER_free(rctx->op.ciph.cipher);
536 rctx->op.ciph.cipher = NULL;
537 goto err;
538 }
539 return rctx;
540 }
541 } else if (EVP_PKEY_CTX_IS_KEM_OP(pctx)) {
542 if (pctx->op.encap.kem != NULL) {
543 rctx->op.encap.kem = pctx->op.encap.kem;
544 if (!EVP_KEM_up_ref(rctx->op.encap.kem))
545 goto err;
546 }
547 if (pctx->op.encap.algctx != NULL) {
548 if (!ossl_assert(pctx->op.encap.kem != NULL))
549 goto err;
550
551 if (pctx->op.encap.kem->dupctx != NULL)
552 rctx->op.encap.algctx
553 = pctx->op.encap.kem->dupctx(pctx->op.encap.algctx);
554
555 if (rctx->op.encap.algctx == NULL) {
556 EVP_KEM_free(rctx->op.encap.kem);
557 rctx->op.encap.kem = NULL;
558 goto err;
559 }
560 return rctx;
561 }
562 } else if (EVP_PKEY_CTX_IS_GEN_OP(pctx)) {
563 /* Not supported - This would need a gen_dupctx() to work */
564 goto err;
565 }
566
567 rctx->pmeth = pctx->pmeth;
568 # ifndef OPENSSL_NO_ENGINE
569 rctx->engine = pctx->engine;
570 # endif
571
572 if (pctx->peerkey != NULL)
573 EVP_PKEY_up_ref(pctx->peerkey);
574 rctx->peerkey = pctx->peerkey;
575
576 if (pctx->pmeth == NULL) {
577 if (rctx->operation == EVP_PKEY_OP_UNDEFINED) {
578 EVP_KEYMGMT *tmp_keymgmt = pctx->keymgmt;
579 void *provkey;
580
581 provkey = evp_pkey_export_to_provider(pctx->pkey, pctx->libctx,
582 &tmp_keymgmt, pctx->propquery);
583 if (provkey == NULL)
584 goto err;
585 if (!EVP_KEYMGMT_up_ref(tmp_keymgmt))
586 goto err;
587 EVP_KEYMGMT_free(rctx->keymgmt);
588 rctx->keymgmt = tmp_keymgmt;
589 return rctx;
590 }
591 } else if (pctx->pmeth->copy(rctx, pctx) > 0) {
592 return rctx;
593 }
594 err:
595 rctx->pmeth = NULL;
596 EVP_PKEY_CTX_free(rctx);
597 return NULL;
598 }
599
EVP_PKEY_meth_add0(const EVP_PKEY_METHOD * pmeth)600 int EVP_PKEY_meth_add0(const EVP_PKEY_METHOD *pmeth)
601 {
602 if (app_pkey_methods == NULL) {
603 app_pkey_methods = sk_EVP_PKEY_METHOD_new(pmeth_cmp);
604 if (app_pkey_methods == NULL) {
605 ERR_raise(ERR_LIB_EVP, ERR_R_CRYPTO_LIB);
606 return 0;
607 }
608 }
609 if (!sk_EVP_PKEY_METHOD_push(app_pkey_methods, pmeth)) {
610 ERR_raise(ERR_LIB_EVP, ERR_R_CRYPTO_LIB);
611 return 0;
612 }
613 sk_EVP_PKEY_METHOD_sort(app_pkey_methods);
614 return 1;
615 }
616
evp_app_cleanup_int(void)617 void evp_app_cleanup_int(void)
618 {
619 if (app_pkey_methods != NULL)
620 sk_EVP_PKEY_METHOD_pop_free(app_pkey_methods, EVP_PKEY_meth_free);
621 }
622
EVP_PKEY_meth_remove(const EVP_PKEY_METHOD * pmeth)623 int EVP_PKEY_meth_remove(const EVP_PKEY_METHOD *pmeth)
624 {
625 const EVP_PKEY_METHOD *ret;
626
627 ret = sk_EVP_PKEY_METHOD_delete_ptr(app_pkey_methods, pmeth);
628
629 return ret == NULL ? 0 : 1;
630 }
631
EVP_PKEY_meth_get_count(void)632 size_t EVP_PKEY_meth_get_count(void)
633 {
634 size_t rv = OSSL_NELEM(standard_methods);
635
636 if (app_pkey_methods)
637 rv += sk_EVP_PKEY_METHOD_num(app_pkey_methods);
638 return rv;
639 }
640
EVP_PKEY_meth_get0(size_t idx)641 const EVP_PKEY_METHOD *EVP_PKEY_meth_get0(size_t idx)
642 {
643 if (idx < OSSL_NELEM(standard_methods))
644 return (standard_methods[idx])();
645 if (app_pkey_methods == NULL)
646 return NULL;
647 idx -= OSSL_NELEM(standard_methods);
648 if (idx >= (size_t)sk_EVP_PKEY_METHOD_num(app_pkey_methods))
649 return NULL;
650 return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx);
651 }
652 #endif
653
EVP_PKEY_CTX_is_a(EVP_PKEY_CTX * ctx,const char * keytype)654 int EVP_PKEY_CTX_is_a(EVP_PKEY_CTX *ctx, const char *keytype)
655 {
656 #ifndef FIPS_MODULE
657 if (evp_pkey_ctx_is_legacy(ctx))
658 return (ctx->pmeth->pkey_id == evp_pkey_name2type(keytype));
659 #endif
660 return EVP_KEYMGMT_is_a(ctx->keymgmt, keytype);
661 }
662
EVP_PKEY_CTX_set_params(EVP_PKEY_CTX * ctx,const OSSL_PARAM * params)663 int EVP_PKEY_CTX_set_params(EVP_PKEY_CTX *ctx, const OSSL_PARAM *params)
664 {
665 switch (evp_pkey_ctx_state(ctx)) {
666 case EVP_PKEY_STATE_PROVIDER:
667 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
668 && ctx->op.kex.exchange != NULL
669 && ctx->op.kex.exchange->set_ctx_params != NULL)
670 return
671 ctx->op.kex.exchange->set_ctx_params(ctx->op.kex.algctx,
672 params);
673 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
674 && ctx->op.sig.signature != NULL
675 && ctx->op.sig.signature->set_ctx_params != NULL)
676 return
677 ctx->op.sig.signature->set_ctx_params(ctx->op.sig.algctx,
678 params);
679 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
680 && ctx->op.ciph.cipher != NULL
681 && ctx->op.ciph.cipher->set_ctx_params != NULL)
682 return
683 ctx->op.ciph.cipher->set_ctx_params(ctx->op.ciph.algctx,
684 params);
685 if (EVP_PKEY_CTX_IS_GEN_OP(ctx)
686 && ctx->keymgmt != NULL
687 && ctx->keymgmt->gen_set_params != NULL)
688 return
689 evp_keymgmt_gen_set_params(ctx->keymgmt, ctx->op.keymgmt.genctx,
690 params);
691 if (EVP_PKEY_CTX_IS_KEM_OP(ctx)
692 && ctx->op.encap.kem != NULL
693 && ctx->op.encap.kem->set_ctx_params != NULL)
694 return
695 ctx->op.encap.kem->set_ctx_params(ctx->op.encap.algctx,
696 params);
697 break;
698 #ifndef FIPS_MODULE
699 case EVP_PKEY_STATE_UNKNOWN:
700 case EVP_PKEY_STATE_LEGACY:
701 return evp_pkey_ctx_set_params_to_ctrl(ctx, params);
702 #endif
703 }
704 return 0;
705 }
706
EVP_PKEY_CTX_get_params(EVP_PKEY_CTX * ctx,OSSL_PARAM * params)707 int EVP_PKEY_CTX_get_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
708 {
709 switch (evp_pkey_ctx_state(ctx)) {
710 case EVP_PKEY_STATE_PROVIDER:
711 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
712 && ctx->op.kex.exchange != NULL
713 && ctx->op.kex.exchange->get_ctx_params != NULL)
714 return
715 ctx->op.kex.exchange->get_ctx_params(ctx->op.kex.algctx,
716 params);
717 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
718 && ctx->op.sig.signature != NULL
719 && ctx->op.sig.signature->get_ctx_params != NULL)
720 return
721 ctx->op.sig.signature->get_ctx_params(ctx->op.sig.algctx,
722 params);
723 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
724 && ctx->op.ciph.cipher != NULL
725 && ctx->op.ciph.cipher->get_ctx_params != NULL)
726 return
727 ctx->op.ciph.cipher->get_ctx_params(ctx->op.ciph.algctx,
728 params);
729 if (EVP_PKEY_CTX_IS_KEM_OP(ctx)
730 && ctx->op.encap.kem != NULL
731 && ctx->op.encap.kem->get_ctx_params != NULL)
732 return
733 ctx->op.encap.kem->get_ctx_params(ctx->op.encap.algctx,
734 params);
735 if (EVP_PKEY_CTX_IS_GEN_OP(ctx)
736 && ctx->keymgmt != NULL
737 && ctx->keymgmt->gen_get_params != NULL)
738 return
739 evp_keymgmt_gen_get_params(ctx->keymgmt, ctx->op.keymgmt.genctx,
740 params);
741 break;
742 #ifndef FIPS_MODULE
743 case EVP_PKEY_STATE_UNKNOWN:
744 case EVP_PKEY_STATE_LEGACY:
745 return evp_pkey_ctx_get_params_to_ctrl(ctx, params);
746 #endif
747 }
748 return 0;
749 }
750
751 #ifndef FIPS_MODULE
EVP_PKEY_CTX_gettable_params(const EVP_PKEY_CTX * ctx)752 const OSSL_PARAM *EVP_PKEY_CTX_gettable_params(const EVP_PKEY_CTX *ctx)
753 {
754 void *provctx;
755
756 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
757 && ctx->op.kex.exchange != NULL
758 && ctx->op.kex.exchange->gettable_ctx_params != NULL) {
759 provctx = ossl_provider_ctx(EVP_KEYEXCH_get0_provider(ctx->op.kex.exchange));
760 return ctx->op.kex.exchange->gettable_ctx_params(ctx->op.kex.algctx,
761 provctx);
762 }
763 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
764 && ctx->op.sig.signature != NULL
765 && ctx->op.sig.signature->gettable_ctx_params != NULL) {
766 provctx = ossl_provider_ctx(
767 EVP_SIGNATURE_get0_provider(ctx->op.sig.signature));
768 return ctx->op.sig.signature->gettable_ctx_params(ctx->op.sig.algctx,
769 provctx);
770 }
771 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
772 && ctx->op.ciph.cipher != NULL
773 && ctx->op.ciph.cipher->gettable_ctx_params != NULL) {
774 provctx = ossl_provider_ctx(
775 EVP_ASYM_CIPHER_get0_provider(ctx->op.ciph.cipher));
776 return ctx->op.ciph.cipher->gettable_ctx_params(ctx->op.ciph.algctx,
777 provctx);
778 }
779 if (EVP_PKEY_CTX_IS_KEM_OP(ctx)
780 && ctx->op.encap.kem != NULL
781 && ctx->op.encap.kem->gettable_ctx_params != NULL) {
782 provctx = ossl_provider_ctx(EVP_KEM_get0_provider(ctx->op.encap.kem));
783 return ctx->op.encap.kem->gettable_ctx_params(ctx->op.encap.algctx,
784 provctx);
785 }
786 if (EVP_PKEY_CTX_IS_GEN_OP(ctx)
787 && ctx->keymgmt != NULL
788 && ctx->keymgmt->gen_gettable_params != NULL) {
789 provctx = ossl_provider_ctx(EVP_KEYMGMT_get0_provider(ctx->keymgmt));
790 return ctx->keymgmt->gen_gettable_params(ctx->op.keymgmt.genctx,
791 provctx);
792 }
793 return NULL;
794 }
795
EVP_PKEY_CTX_settable_params(const EVP_PKEY_CTX * ctx)796 const OSSL_PARAM *EVP_PKEY_CTX_settable_params(const EVP_PKEY_CTX *ctx)
797 {
798 void *provctx;
799
800 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
801 && ctx->op.kex.exchange != NULL
802 && ctx->op.kex.exchange->settable_ctx_params != NULL) {
803 provctx = ossl_provider_ctx(EVP_KEYEXCH_get0_provider(ctx->op.kex.exchange));
804 return ctx->op.kex.exchange->settable_ctx_params(ctx->op.kex.algctx,
805 provctx);
806 }
807 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
808 && ctx->op.sig.signature != NULL
809 && ctx->op.sig.signature->settable_ctx_params != NULL) {
810 provctx = ossl_provider_ctx(
811 EVP_SIGNATURE_get0_provider(ctx->op.sig.signature));
812 return ctx->op.sig.signature->settable_ctx_params(ctx->op.sig.algctx,
813 provctx);
814 }
815 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
816 && ctx->op.ciph.cipher != NULL
817 && ctx->op.ciph.cipher->settable_ctx_params != NULL) {
818 provctx = ossl_provider_ctx(
819 EVP_ASYM_CIPHER_get0_provider(ctx->op.ciph.cipher));
820 return ctx->op.ciph.cipher->settable_ctx_params(ctx->op.ciph.algctx,
821 provctx);
822 }
823 if (EVP_PKEY_CTX_IS_GEN_OP(ctx)
824 && ctx->keymgmt != NULL
825 && ctx->keymgmt->gen_settable_params != NULL) {
826 provctx = ossl_provider_ctx(EVP_KEYMGMT_get0_provider(ctx->keymgmt));
827 return ctx->keymgmt->gen_settable_params(ctx->op.keymgmt.genctx,
828 provctx);
829 }
830 if (EVP_PKEY_CTX_IS_KEM_OP(ctx)
831 && ctx->op.encap.kem != NULL
832 && ctx->op.encap.kem->settable_ctx_params != NULL) {
833 provctx = ossl_provider_ctx(EVP_KEM_get0_provider(ctx->op.encap.kem));
834 return ctx->op.encap.kem->settable_ctx_params(ctx->op.encap.algctx,
835 provctx);
836 }
837 return NULL;
838 }
839
840 /*
841 * Internal helpers for stricter EVP_PKEY_CTX_{set,get}_params().
842 *
843 * Return 1 on success, 0 or negative for errors.
844 *
845 * In particular they return -2 if any of the params is not supported.
846 *
847 * They are not available in FIPS_MODULE as they depend on
848 * - EVP_PKEY_CTX_{get,set}_params()
849 * - EVP_PKEY_CTX_{gettable,settable}_params()
850 *
851 */
evp_pkey_ctx_set_params_strict(EVP_PKEY_CTX * ctx,OSSL_PARAM * params)852 int evp_pkey_ctx_set_params_strict(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
853 {
854 if (ctx == NULL || params == NULL)
855 return 0;
856
857 /*
858 * We only check for provider side EVP_PKEY_CTX. For #legacy, we
859 * depend on the translation that happens in EVP_PKEY_CTX_set_params()
860 * call, and that the resulting ctrl call will return -2 if it doesn't
861 * known the ctrl command number.
862 */
863 if (evp_pkey_ctx_is_provided(ctx)) {
864 const OSSL_PARAM *settable = EVP_PKEY_CTX_settable_params(ctx);
865 const OSSL_PARAM *p;
866
867 for (p = params; p->key != NULL; p++) {
868 /* Check the ctx actually understands this parameter */
869 if (OSSL_PARAM_locate_const(settable, p->key) == NULL)
870 return -2;
871 }
872 }
873
874 return EVP_PKEY_CTX_set_params(ctx, params);
875 }
876
evp_pkey_ctx_get_params_strict(EVP_PKEY_CTX * ctx,OSSL_PARAM * params)877 int evp_pkey_ctx_get_params_strict(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
878 {
879 if (ctx == NULL || params == NULL)
880 return 0;
881
882 /*
883 * We only check for provider side EVP_PKEY_CTX. For #legacy, we
884 * depend on the translation that happens in EVP_PKEY_CTX_get_params()
885 * call, and that the resulting ctrl call will return -2 if it doesn't
886 * known the ctrl command number.
887 */
888 if (evp_pkey_ctx_is_provided(ctx)) {
889 const OSSL_PARAM *gettable = EVP_PKEY_CTX_gettable_params(ctx);
890 const OSSL_PARAM *p;
891
892 for (p = params; p->key != NULL; p++) {
893 /* Check the ctx actually understands this parameter */
894 if (OSSL_PARAM_locate_const(gettable, p->key) == NULL)
895 return -2;
896 }
897 }
898
899 return EVP_PKEY_CTX_get_params(ctx, params);
900 }
901
EVP_PKEY_CTX_get_signature_md(EVP_PKEY_CTX * ctx,const EVP_MD ** md)902 int EVP_PKEY_CTX_get_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD **md)
903 {
904 OSSL_PARAM sig_md_params[2], *p = sig_md_params;
905 /* 80 should be big enough */
906 char name[80] = "";
907 const EVP_MD *tmp;
908
909 if (ctx == NULL || !EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
910 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
911 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
912 return -2;
913 }
914
915 if (ctx->op.sig.algctx == NULL)
916 return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG,
917 EVP_PKEY_CTRL_GET_MD, 0, (void *)(md));
918
919 *p++ = OSSL_PARAM_construct_utf8_string(OSSL_SIGNATURE_PARAM_DIGEST,
920 name,
921 sizeof(name));
922 *p = OSSL_PARAM_construct_end();
923
924 if (!EVP_PKEY_CTX_get_params(ctx, sig_md_params))
925 return 0;
926
927 tmp = evp_get_digestbyname_ex(ctx->libctx, name);
928 if (tmp == NULL)
929 return 0;
930
931 *md = tmp;
932
933 return 1;
934 }
935
evp_pkey_ctx_set_md(EVP_PKEY_CTX * ctx,const EVP_MD * md,int fallback,const char * param,int op,int ctrl)936 static int evp_pkey_ctx_set_md(EVP_PKEY_CTX *ctx, const EVP_MD *md,
937 int fallback, const char *param, int op,
938 int ctrl)
939 {
940 OSSL_PARAM md_params[2], *p = md_params;
941 const char *name;
942
943 if (ctx == NULL || (ctx->operation & op) == 0) {
944 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
945 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
946 return -2;
947 }
948
949 if (fallback)
950 return EVP_PKEY_CTX_ctrl(ctx, -1, op, ctrl, 0, (void *)(md));
951
952 if (md == NULL) {
953 name = "";
954 } else {
955 name = EVP_MD_get0_name(md);
956 }
957
958 *p++ = OSSL_PARAM_construct_utf8_string(param,
959 /*
960 * Cast away the const. This is read
961 * only so should be safe
962 */
963 (char *)name, 0);
964 *p = OSSL_PARAM_construct_end();
965
966 return EVP_PKEY_CTX_set_params(ctx, md_params);
967 }
968
EVP_PKEY_CTX_set_signature_md(EVP_PKEY_CTX * ctx,const EVP_MD * md)969 int EVP_PKEY_CTX_set_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD *md)
970 {
971 return evp_pkey_ctx_set_md(ctx, md, ctx->op.sig.algctx == NULL,
972 OSSL_SIGNATURE_PARAM_DIGEST,
973 EVP_PKEY_OP_TYPE_SIG, EVP_PKEY_CTRL_MD);
974 }
975
EVP_PKEY_CTX_set_tls1_prf_md(EVP_PKEY_CTX * ctx,const EVP_MD * md)976 int EVP_PKEY_CTX_set_tls1_prf_md(EVP_PKEY_CTX *ctx, const EVP_MD *md)
977 {
978 return evp_pkey_ctx_set_md(ctx, md, ctx->op.kex.algctx == NULL,
979 OSSL_KDF_PARAM_DIGEST,
980 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_TLS_MD);
981 }
982
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)983 static int evp_pkey_ctx_set1_octet_string(EVP_PKEY_CTX *ctx, int fallback,
984 const char *param, int op, int ctrl,
985 const unsigned char *data,
986 int datalen)
987 {
988 OSSL_PARAM octet_string_params[2], *p = octet_string_params;
989
990 if (ctx == NULL || (ctx->operation & op) == 0) {
991 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
992 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
993 return -2;
994 }
995
996 /* Code below to be removed when legacy support is dropped. */
997 if (fallback)
998 return EVP_PKEY_CTX_ctrl(ctx, -1, op, ctrl, datalen, (void *)(data));
999 /* end of legacy support */
1000
1001 if (datalen < 0) {
1002 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_LENGTH);
1003 return 0;
1004 }
1005
1006 *p++ = OSSL_PARAM_construct_octet_string(param,
1007 /*
1008 * Cast away the const. This is read
1009 * only so should be safe
1010 */
1011 (unsigned char *)data,
1012 (size_t)datalen);
1013 *p = OSSL_PARAM_construct_end();
1014
1015 return EVP_PKEY_CTX_set_params(ctx, octet_string_params);
1016 }
1017
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)1018 static int evp_pkey_ctx_add1_octet_string(EVP_PKEY_CTX *ctx, int fallback,
1019 const char *param, int op, int ctrl,
1020 const unsigned char *data,
1021 int datalen)
1022 {
1023 OSSL_PARAM os_params[2];
1024 const OSSL_PARAM *gettables;
1025 unsigned char *info = NULL;
1026 size_t info_len = 0;
1027 size_t info_alloc = 0;
1028 int ret = 0;
1029
1030 if (ctx == NULL || (ctx->operation & op) == 0) {
1031 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1032 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
1033 return -2;
1034 }
1035
1036 /* Code below to be removed when legacy support is dropped. */
1037 if (fallback)
1038 return EVP_PKEY_CTX_ctrl(ctx, -1, op, ctrl, datalen, (void *)(data));
1039 /* end of legacy support */
1040
1041 if (datalen < 0) {
1042 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_LENGTH);
1043 return 0;
1044 } else if (datalen == 0) {
1045 return 1;
1046 }
1047
1048 /* Check for older provider that doesn't support getting this parameter */
1049 gettables = EVP_PKEY_CTX_gettable_params(ctx);
1050 if (gettables == NULL || OSSL_PARAM_locate_const(gettables, param) == NULL)
1051 return evp_pkey_ctx_set1_octet_string(ctx, fallback, param, op, ctrl,
1052 data, datalen);
1053
1054 /* Get the original value length */
1055 os_params[0] = OSSL_PARAM_construct_octet_string(param, NULL, 0);
1056 os_params[1] = OSSL_PARAM_construct_end();
1057
1058 if (!EVP_PKEY_CTX_get_params(ctx, os_params))
1059 return 0;
1060
1061 /* This should not happen but check to be sure. */
1062 if (os_params[0].return_size == OSSL_PARAM_UNMODIFIED)
1063 return 0;
1064
1065 info_alloc = os_params[0].return_size + datalen;
1066 if (info_alloc == 0)
1067 return 0;
1068 info = OPENSSL_zalloc(info_alloc);
1069 if (info == NULL)
1070 return 0;
1071 info_len = os_params[0].return_size;
1072
1073 os_params[0] = OSSL_PARAM_construct_octet_string(param, info, info_alloc);
1074
1075 /* if we have data, then go get it */
1076 if (info_len > 0) {
1077 if (!EVP_PKEY_CTX_get_params(ctx, os_params))
1078 goto error;
1079 }
1080
1081 /* Copy the input data */
1082 memcpy(&info[info_len], data, datalen);
1083 ret = EVP_PKEY_CTX_set_params(ctx, os_params);
1084
1085 error:
1086 OPENSSL_clear_free(info, info_alloc);
1087 return ret;
1088 }
1089
EVP_PKEY_CTX_set1_tls1_prf_secret(EVP_PKEY_CTX * ctx,const unsigned char * sec,int seclen)1090 int EVP_PKEY_CTX_set1_tls1_prf_secret(EVP_PKEY_CTX *ctx,
1091 const unsigned char *sec, int seclen)
1092 {
1093 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
1094 OSSL_KDF_PARAM_SECRET,
1095 EVP_PKEY_OP_DERIVE,
1096 EVP_PKEY_CTRL_TLS_SECRET,
1097 sec, seclen);
1098 }
1099
EVP_PKEY_CTX_add1_tls1_prf_seed(EVP_PKEY_CTX * ctx,const unsigned char * seed,int seedlen)1100 int EVP_PKEY_CTX_add1_tls1_prf_seed(EVP_PKEY_CTX *ctx,
1101 const unsigned char *seed, int seedlen)
1102 {
1103 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
1104 OSSL_KDF_PARAM_SEED,
1105 EVP_PKEY_OP_DERIVE,
1106 EVP_PKEY_CTRL_TLS_SEED,
1107 seed, seedlen);
1108 }
1109
EVP_PKEY_CTX_set_hkdf_md(EVP_PKEY_CTX * ctx,const EVP_MD * md)1110 int EVP_PKEY_CTX_set_hkdf_md(EVP_PKEY_CTX *ctx, const EVP_MD *md)
1111 {
1112 return evp_pkey_ctx_set_md(ctx, md, ctx->op.kex.algctx == NULL,
1113 OSSL_KDF_PARAM_DIGEST,
1114 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_HKDF_MD);
1115 }
1116
EVP_PKEY_CTX_set1_hkdf_salt(EVP_PKEY_CTX * ctx,const unsigned char * salt,int saltlen)1117 int EVP_PKEY_CTX_set1_hkdf_salt(EVP_PKEY_CTX *ctx,
1118 const unsigned char *salt, int saltlen)
1119 {
1120 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
1121 OSSL_KDF_PARAM_SALT,
1122 EVP_PKEY_OP_DERIVE,
1123 EVP_PKEY_CTRL_HKDF_SALT,
1124 salt, saltlen);
1125 }
1126
EVP_PKEY_CTX_set1_hkdf_key(EVP_PKEY_CTX * ctx,const unsigned char * key,int keylen)1127 int EVP_PKEY_CTX_set1_hkdf_key(EVP_PKEY_CTX *ctx,
1128 const unsigned char *key, int keylen)
1129 {
1130 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
1131 OSSL_KDF_PARAM_KEY,
1132 EVP_PKEY_OP_DERIVE,
1133 EVP_PKEY_CTRL_HKDF_KEY,
1134 key, keylen);
1135 }
1136
EVP_PKEY_CTX_add1_hkdf_info(EVP_PKEY_CTX * ctx,const unsigned char * info,int infolen)1137 int EVP_PKEY_CTX_add1_hkdf_info(EVP_PKEY_CTX *ctx,
1138 const unsigned char *info, int infolen)
1139 {
1140 return evp_pkey_ctx_add1_octet_string(ctx, ctx->op.kex.algctx == NULL,
1141 OSSL_KDF_PARAM_INFO,
1142 EVP_PKEY_OP_DERIVE,
1143 EVP_PKEY_CTRL_HKDF_INFO,
1144 info, infolen);
1145 }
1146
EVP_PKEY_CTX_set_hkdf_mode(EVP_PKEY_CTX * ctx,int mode)1147 int EVP_PKEY_CTX_set_hkdf_mode(EVP_PKEY_CTX *ctx, int mode)
1148 {
1149 OSSL_PARAM int_params[2], *p = int_params;
1150
1151 if (ctx == NULL || !EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
1152 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1153 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
1154 return -2;
1155 }
1156
1157 /* Code below to be removed when legacy support is dropped. */
1158 if (ctx->op.kex.algctx == NULL)
1159 return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_DERIVE,
1160 EVP_PKEY_CTRL_HKDF_MODE, mode, NULL);
1161 /* end of legacy support */
1162
1163 if (mode < 0) {
1164 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_VALUE);
1165 return 0;
1166 }
1167
1168 *p++ = OSSL_PARAM_construct_int(OSSL_KDF_PARAM_MODE, &mode);
1169 *p = OSSL_PARAM_construct_end();
1170
1171 return EVP_PKEY_CTX_set_params(ctx, int_params);
1172 }
1173
EVP_PKEY_CTX_set1_pbe_pass(EVP_PKEY_CTX * ctx,const char * pass,int passlen)1174 int EVP_PKEY_CTX_set1_pbe_pass(EVP_PKEY_CTX *ctx, const char *pass,
1175 int passlen)
1176 {
1177 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
1178 OSSL_KDF_PARAM_PASSWORD,
1179 EVP_PKEY_OP_DERIVE,
1180 EVP_PKEY_CTRL_PASS,
1181 (const unsigned char *)pass, passlen);
1182 }
1183
EVP_PKEY_CTX_set1_scrypt_salt(EVP_PKEY_CTX * ctx,const unsigned char * salt,int saltlen)1184 int EVP_PKEY_CTX_set1_scrypt_salt(EVP_PKEY_CTX *ctx,
1185 const unsigned char *salt, int saltlen)
1186 {
1187 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
1188 OSSL_KDF_PARAM_SALT,
1189 EVP_PKEY_OP_DERIVE,
1190 EVP_PKEY_CTRL_SCRYPT_SALT,
1191 salt, saltlen);
1192 }
1193
evp_pkey_ctx_set_uint64(EVP_PKEY_CTX * ctx,const char * param,int op,int ctrl,uint64_t val)1194 static int evp_pkey_ctx_set_uint64(EVP_PKEY_CTX *ctx, const char *param,
1195 int op, int ctrl, uint64_t val)
1196 {
1197 OSSL_PARAM uint64_params[2], *p = uint64_params;
1198
1199 if (ctx == NULL || !EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
1200 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1201 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
1202 return -2;
1203 }
1204
1205 /* Code below to be removed when legacy support is dropped. */
1206 if (ctx->op.kex.algctx == NULL)
1207 return EVP_PKEY_CTX_ctrl_uint64(ctx, -1, op, ctrl, val);
1208 /* end of legacy support */
1209
1210 *p++ = OSSL_PARAM_construct_uint64(param, &val);
1211 *p = OSSL_PARAM_construct_end();
1212
1213 return EVP_PKEY_CTX_set_params(ctx, uint64_params);
1214 }
1215
EVP_PKEY_CTX_set_scrypt_N(EVP_PKEY_CTX * ctx,uint64_t n)1216 int EVP_PKEY_CTX_set_scrypt_N(EVP_PKEY_CTX *ctx, uint64_t n)
1217 {
1218 return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_N,
1219 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_SCRYPT_N,
1220 n);
1221 }
1222
EVP_PKEY_CTX_set_scrypt_r(EVP_PKEY_CTX * ctx,uint64_t r)1223 int EVP_PKEY_CTX_set_scrypt_r(EVP_PKEY_CTX *ctx, uint64_t r)
1224 {
1225 return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_R,
1226 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_SCRYPT_R,
1227 r);
1228 }
1229
EVP_PKEY_CTX_set_scrypt_p(EVP_PKEY_CTX * ctx,uint64_t p)1230 int EVP_PKEY_CTX_set_scrypt_p(EVP_PKEY_CTX *ctx, uint64_t p)
1231 {
1232 return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_P,
1233 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_SCRYPT_P,
1234 p);
1235 }
1236
EVP_PKEY_CTX_set_scrypt_maxmem_bytes(EVP_PKEY_CTX * ctx,uint64_t maxmem_bytes)1237 int EVP_PKEY_CTX_set_scrypt_maxmem_bytes(EVP_PKEY_CTX *ctx,
1238 uint64_t maxmem_bytes)
1239 {
1240 return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_MAXMEM,
1241 EVP_PKEY_OP_DERIVE,
1242 EVP_PKEY_CTRL_SCRYPT_MAXMEM_BYTES,
1243 maxmem_bytes);
1244 }
1245
EVP_PKEY_CTX_set_mac_key(EVP_PKEY_CTX * ctx,const unsigned char * key,int keylen)1246 int EVP_PKEY_CTX_set_mac_key(EVP_PKEY_CTX *ctx, const unsigned char *key,
1247 int keylen)
1248 {
1249 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.keymgmt.genctx == NULL,
1250 OSSL_PKEY_PARAM_PRIV_KEY,
1251 EVP_PKEY_OP_KEYGEN,
1252 EVP_PKEY_CTRL_SET_MAC_KEY,
1253 key, keylen);
1254 }
1255
EVP_PKEY_CTX_set_kem_op(EVP_PKEY_CTX * ctx,const char * op)1256 int EVP_PKEY_CTX_set_kem_op(EVP_PKEY_CTX *ctx, const char *op)
1257 {
1258 OSSL_PARAM params[2], *p = params;
1259
1260 if (ctx == NULL || op == NULL) {
1261 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_VALUE);
1262 return 0;
1263 }
1264 if (!EVP_PKEY_CTX_IS_KEM_OP(ctx)) {
1265 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1266 return -2;
1267 }
1268 *p++ = OSSL_PARAM_construct_utf8_string(OSSL_KEM_PARAM_OPERATION,
1269 (char *)op, 0);
1270 *p = OSSL_PARAM_construct_end();
1271 return EVP_PKEY_CTX_set_params(ctx, params);
1272 }
1273
EVP_PKEY_CTX_set1_id(EVP_PKEY_CTX * ctx,const void * id,int len)1274 int EVP_PKEY_CTX_set1_id(EVP_PKEY_CTX *ctx, const void *id, int len)
1275 {
1276 return EVP_PKEY_CTX_ctrl(ctx, -1, -1,
1277 EVP_PKEY_CTRL_SET1_ID, (int)len, (void*)(id));
1278 }
1279
EVP_PKEY_CTX_get1_id(EVP_PKEY_CTX * ctx,void * id)1280 int EVP_PKEY_CTX_get1_id(EVP_PKEY_CTX *ctx, void *id)
1281 {
1282 return EVP_PKEY_CTX_ctrl(ctx, -1, -1, EVP_PKEY_CTRL_GET1_ID, 0, (void*)id);
1283 }
1284
EVP_PKEY_CTX_get1_id_len(EVP_PKEY_CTX * ctx,size_t * id_len)1285 int EVP_PKEY_CTX_get1_id_len(EVP_PKEY_CTX *ctx, size_t *id_len)
1286 {
1287 return EVP_PKEY_CTX_ctrl(ctx, -1, -1,
1288 EVP_PKEY_CTRL_GET1_ID_LEN, 0, (void*)id_len);
1289 }
1290
evp_pkey_ctx_ctrl_int(EVP_PKEY_CTX * ctx,int keytype,int optype,int cmd,int p1,void * p2)1291 static int evp_pkey_ctx_ctrl_int(EVP_PKEY_CTX *ctx, int keytype, int optype,
1292 int cmd, int p1, void *p2)
1293 {
1294 int ret = 0;
1295
1296 /*
1297 * If the method has a |digest_custom| function, we can relax the
1298 * operation type check, since this can be called before the operation
1299 * is initialized.
1300 */
1301 if (ctx->pmeth == NULL || ctx->pmeth->digest_custom == NULL) {
1302 if (ctx->operation == EVP_PKEY_OP_UNDEFINED) {
1303 ERR_raise(ERR_LIB_EVP, EVP_R_NO_OPERATION_SET);
1304 return -1;
1305 }
1306
1307 if ((optype != -1) && !(ctx->operation & optype)) {
1308 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION);
1309 return -1;
1310 }
1311 }
1312
1313 switch (evp_pkey_ctx_state(ctx)) {
1314 case EVP_PKEY_STATE_PROVIDER:
1315 return evp_pkey_ctx_ctrl_to_param(ctx, keytype, optype, cmd, p1, p2);
1316 case EVP_PKEY_STATE_UNKNOWN:
1317 case EVP_PKEY_STATE_LEGACY:
1318 if (ctx->pmeth == NULL || ctx->pmeth->ctrl == NULL) {
1319 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1320 return -2;
1321 }
1322 if ((keytype != -1) && (ctx->pmeth->pkey_id != keytype))
1323 return -1;
1324
1325 ret = ctx->pmeth->ctrl(ctx, cmd, p1, p2);
1326
1327 if (ret == -2)
1328 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1329 break;
1330 }
1331 return ret;
1332 }
1333
EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX * ctx,int keytype,int optype,int cmd,int p1,void * p2)1334 int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype,
1335 int cmd, int p1, void *p2)
1336 {
1337 int ret = 0;
1338
1339 if (ctx == NULL) {
1340 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1341 return -2;
1342 }
1343 /* If unsupported, we don't want that reported here */
1344 ERR_set_mark();
1345 ret = evp_pkey_ctx_store_cached_data(ctx, keytype, optype,
1346 cmd, NULL, p2, p1);
1347 if (ret == -2) {
1348 ERR_pop_to_mark();
1349 } else {
1350 ERR_clear_last_mark();
1351 /*
1352 * If there was an error, there was an error.
1353 * If the operation isn't initialized yet, we also return, as
1354 * the saved values will be used then anyway.
1355 */
1356 if (ret < 1 || ctx->operation == EVP_PKEY_OP_UNDEFINED)
1357 return ret;
1358 }
1359 return evp_pkey_ctx_ctrl_int(ctx, keytype, optype, cmd, p1, p2);
1360 }
1361
EVP_PKEY_CTX_ctrl_uint64(EVP_PKEY_CTX * ctx,int keytype,int optype,int cmd,uint64_t value)1362 int EVP_PKEY_CTX_ctrl_uint64(EVP_PKEY_CTX *ctx, int keytype, int optype,
1363 int cmd, uint64_t value)
1364 {
1365 return EVP_PKEY_CTX_ctrl(ctx, keytype, optype, cmd, 0, &value);
1366 }
1367
1368
evp_pkey_ctx_ctrl_str_int(EVP_PKEY_CTX * ctx,const char * name,const char * value)1369 static int evp_pkey_ctx_ctrl_str_int(EVP_PKEY_CTX *ctx,
1370 const char *name, const char *value)
1371 {
1372 int ret = 0;
1373
1374 if (ctx == NULL) {
1375 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1376 return -2;
1377 }
1378
1379 switch (evp_pkey_ctx_state(ctx)) {
1380 case EVP_PKEY_STATE_PROVIDER:
1381 return evp_pkey_ctx_ctrl_str_to_param(ctx, name, value);
1382 case EVP_PKEY_STATE_UNKNOWN:
1383 case EVP_PKEY_STATE_LEGACY:
1384 if (ctx == NULL || ctx->pmeth == NULL || ctx->pmeth->ctrl_str == NULL) {
1385 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1386 return -2;
1387 }
1388 if (strcmp(name, "digest") == 0)
1389 ret = EVP_PKEY_CTX_md(ctx,
1390 EVP_PKEY_OP_TYPE_SIG | EVP_PKEY_OP_TYPE_CRYPT,
1391 EVP_PKEY_CTRL_MD, value);
1392 else
1393 ret = ctx->pmeth->ctrl_str(ctx, name, value);
1394 break;
1395 }
1396
1397 return ret;
1398 }
1399
EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX * ctx,const char * name,const char * value)1400 int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX *ctx,
1401 const char *name, const char *value)
1402 {
1403 int ret = 0;
1404
1405 /* If unsupported, we don't want that reported here */
1406 ERR_set_mark();
1407 ret = evp_pkey_ctx_store_cached_data(ctx, -1, -1, -1,
1408 name, value, strlen(value) + 1);
1409 if (ret == -2) {
1410 ERR_pop_to_mark();
1411 } else {
1412 ERR_clear_last_mark();
1413 /*
1414 * If there was an error, there was an error.
1415 * If the operation isn't initialized yet, we also return, as
1416 * the saved values will be used then anyway.
1417 */
1418 if (ret < 1 || ctx->operation == EVP_PKEY_OP_UNDEFINED)
1419 return ret;
1420 }
1421
1422 return evp_pkey_ctx_ctrl_str_int(ctx, name, value);
1423 }
1424
decode_cmd(int cmd,const char * name)1425 static int decode_cmd(int cmd, const char *name)
1426 {
1427 if (cmd == -1) {
1428 /*
1429 * The consequence of the assertion not being true is that this
1430 * function will return -1, which will cause the calling functions
1431 * to signal that the command is unsupported... in non-debug mode.
1432 */
1433 if (ossl_assert(name != NULL))
1434 if (strcmp(name, "distid") == 0 || strcmp(name, "hexdistid") == 0)
1435 cmd = EVP_PKEY_CTRL_SET1_ID;
1436 }
1437
1438 return cmd;
1439 }
1440
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)1441 static int evp_pkey_ctx_store_cached_data(EVP_PKEY_CTX *ctx,
1442 int keytype, int optype,
1443 int cmd, const char *name,
1444 const void *data, size_t data_len)
1445 {
1446 /*
1447 * Check that it's one of the supported commands. The ctrl commands
1448 * number cases here must correspond to the cases in the bottom switch
1449 * in this function.
1450 */
1451 switch (cmd = decode_cmd(cmd, name)) {
1452 case EVP_PKEY_CTRL_SET1_ID:
1453 break;
1454 default:
1455 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1456 return -2;
1457 }
1458
1459 if (keytype != -1) {
1460 switch (evp_pkey_ctx_state(ctx)) {
1461 case EVP_PKEY_STATE_PROVIDER:
1462 if (ctx->keymgmt == NULL) {
1463 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1464 return -2;
1465 }
1466 if (!EVP_KEYMGMT_is_a(ctx->keymgmt,
1467 evp_pkey_type2name(keytype))) {
1468 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION);
1469 return -1;
1470 }
1471 break;
1472 case EVP_PKEY_STATE_UNKNOWN:
1473 case EVP_PKEY_STATE_LEGACY:
1474 if (ctx->pmeth == NULL) {
1475 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1476 return -2;
1477 }
1478 if (EVP_PKEY_type(ctx->pmeth->pkey_id) != EVP_PKEY_type(keytype)) {
1479 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION);
1480 return -1;
1481 }
1482 break;
1483 }
1484 }
1485 if (optype != -1 && (ctx->operation & optype) == 0) {
1486 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION);
1487 return -1;
1488 }
1489
1490 switch (cmd) {
1491 case EVP_PKEY_CTRL_SET1_ID:
1492 evp_pkey_ctx_free_cached_data(ctx, cmd, name);
1493 if (name != NULL) {
1494 ctx->cached_parameters.dist_id_name = OPENSSL_strdup(name);
1495 if (ctx->cached_parameters.dist_id_name == NULL)
1496 return 0;
1497 }
1498 if (data_len > 0) {
1499 ctx->cached_parameters.dist_id = OPENSSL_memdup(data, data_len);
1500 if (ctx->cached_parameters.dist_id == NULL)
1501 return 0;
1502 }
1503 ctx->cached_parameters.dist_id_set = 1;
1504 ctx->cached_parameters.dist_id_len = data_len;
1505 break;
1506 }
1507 return 1;
1508 }
1509
evp_pkey_ctx_free_cached_data(EVP_PKEY_CTX * ctx,int cmd,const char * name)1510 static void evp_pkey_ctx_free_cached_data(EVP_PKEY_CTX *ctx,
1511 int cmd, const char *name)
1512 {
1513 cmd = decode_cmd(cmd, name);
1514 switch (cmd) {
1515 case EVP_PKEY_CTRL_SET1_ID:
1516 OPENSSL_free(ctx->cached_parameters.dist_id);
1517 OPENSSL_free(ctx->cached_parameters.dist_id_name);
1518 ctx->cached_parameters.dist_id = NULL;
1519 ctx->cached_parameters.dist_id_name = NULL;
1520 break;
1521 }
1522 }
1523
evp_pkey_ctx_free_all_cached_data(EVP_PKEY_CTX * ctx)1524 static void evp_pkey_ctx_free_all_cached_data(EVP_PKEY_CTX *ctx)
1525 {
1526 evp_pkey_ctx_free_cached_data(ctx, EVP_PKEY_CTRL_SET1_ID, NULL);
1527 }
1528
evp_pkey_ctx_use_cached_data(EVP_PKEY_CTX * ctx)1529 int evp_pkey_ctx_use_cached_data(EVP_PKEY_CTX *ctx)
1530 {
1531 int ret = 1;
1532
1533 if (ret && ctx->cached_parameters.dist_id_set) {
1534 const char *name = ctx->cached_parameters.dist_id_name;
1535 const void *val = ctx->cached_parameters.dist_id;
1536 size_t len = ctx->cached_parameters.dist_id_len;
1537
1538 if (name != NULL)
1539 ret = evp_pkey_ctx_ctrl_str_int(ctx, name, val);
1540 else
1541 ret = evp_pkey_ctx_ctrl_int(ctx, -1, ctx->operation,
1542 EVP_PKEY_CTRL_SET1_ID,
1543 (int)len, (void *)val);
1544 }
1545
1546 return ret;
1547 }
1548
EVP_PKEY_CTX_get0_libctx(EVP_PKEY_CTX * ctx)1549 OSSL_LIB_CTX *EVP_PKEY_CTX_get0_libctx(EVP_PKEY_CTX *ctx)
1550 {
1551 return ctx->libctx;
1552 }
1553
EVP_PKEY_CTX_get0_propq(const EVP_PKEY_CTX * ctx)1554 const char *EVP_PKEY_CTX_get0_propq(const EVP_PKEY_CTX *ctx)
1555 {
1556 return ctx->propquery;
1557 }
1558
EVP_PKEY_CTX_get0_provider(const EVP_PKEY_CTX * ctx)1559 const OSSL_PROVIDER *EVP_PKEY_CTX_get0_provider(const EVP_PKEY_CTX *ctx)
1560 {
1561 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
1562 if (ctx->op.sig.signature != NULL)
1563 return EVP_SIGNATURE_get0_provider(ctx->op.sig.signature);
1564 } else if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
1565 if (ctx->op.kex.exchange != NULL)
1566 return EVP_KEYEXCH_get0_provider(ctx->op.kex.exchange);
1567 } else if (EVP_PKEY_CTX_IS_KEM_OP(ctx)) {
1568 if (ctx->op.encap.kem != NULL)
1569 return EVP_KEM_get0_provider(ctx->op.encap.kem);
1570 } else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)) {
1571 if (ctx->op.ciph.cipher != NULL)
1572 return EVP_ASYM_CIPHER_get0_provider(ctx->op.ciph.cipher);
1573 } else if (EVP_PKEY_CTX_IS_GEN_OP(ctx)) {
1574 if (ctx->keymgmt != NULL)
1575 return EVP_KEYMGMT_get0_provider(ctx->keymgmt);
1576 }
1577
1578 return NULL;
1579 }
1580
1581 /* Utility functions to send a string of hex string to a ctrl */
1582
EVP_PKEY_CTX_str2ctrl(EVP_PKEY_CTX * ctx,int cmd,const char * str)1583 int EVP_PKEY_CTX_str2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *str)
1584 {
1585 size_t len;
1586
1587 len = strlen(str);
1588 if (len > INT_MAX)
1589 return -1;
1590 return ctx->pmeth->ctrl(ctx, cmd, len, (void *)str);
1591 }
1592
EVP_PKEY_CTX_hex2ctrl(EVP_PKEY_CTX * ctx,int cmd,const char * hex)1593 int EVP_PKEY_CTX_hex2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *hex)
1594 {
1595 unsigned char *bin;
1596 long binlen;
1597 int rv = -1;
1598
1599 bin = OPENSSL_hexstr2buf(hex, &binlen);
1600 if (bin == NULL)
1601 return 0;
1602 if (binlen <= INT_MAX)
1603 rv = ctx->pmeth->ctrl(ctx, cmd, binlen, bin);
1604 OPENSSL_free(bin);
1605 return rv;
1606 }
1607
1608 /* Pass a message digest to a ctrl */
EVP_PKEY_CTX_md(EVP_PKEY_CTX * ctx,int optype,int cmd,const char * md)1609 int EVP_PKEY_CTX_md(EVP_PKEY_CTX *ctx, int optype, int cmd, const char *md)
1610 {
1611 const EVP_MD *m;
1612
1613 if (md == NULL || (m = EVP_get_digestbyname(md)) == NULL) {
1614 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_DIGEST);
1615 return 0;
1616 }
1617 return EVP_PKEY_CTX_ctrl(ctx, -1, optype, cmd, 0, (void *)m);
1618 }
1619
EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX * ctx)1620 int EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX *ctx)
1621 {
1622 return ctx->operation;
1623 }
1624
EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX * ctx,int * dat,int datlen)1625 void EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX *ctx, int *dat, int datlen)
1626 {
1627 ctx->keygen_info = dat;
1628 ctx->keygen_info_count = datlen;
1629 }
1630
EVP_PKEY_CTX_set_data(EVP_PKEY_CTX * ctx,void * data)1631 void EVP_PKEY_CTX_set_data(EVP_PKEY_CTX *ctx, void *data)
1632 {
1633 ctx->data = data;
1634 }
1635
EVP_PKEY_CTX_get_data(const EVP_PKEY_CTX * ctx)1636 void *EVP_PKEY_CTX_get_data(const EVP_PKEY_CTX *ctx)
1637 {
1638 return ctx->data;
1639 }
1640
EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX * ctx)1641 EVP_PKEY *EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX *ctx)
1642 {
1643 return ctx->pkey;
1644 }
1645
EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX * ctx)1646 EVP_PKEY *EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX *ctx)
1647 {
1648 return ctx->peerkey;
1649 }
1650
EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX * ctx,void * data)1651 void EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX *ctx, void *data)
1652 {
1653 ctx->app_data = data;
1654 }
1655
EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX * ctx)1656 void *EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX *ctx)
1657 {
1658 return ctx->app_data;
1659 }
1660
EVP_PKEY_meth_set_init(EVP_PKEY_METHOD * pmeth,int (* init)(EVP_PKEY_CTX * ctx))1661 void EVP_PKEY_meth_set_init(EVP_PKEY_METHOD *pmeth,
1662 int (*init) (EVP_PKEY_CTX *ctx))
1663 {
1664 pmeth->init = init;
1665 }
1666
EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD * pmeth,int (* copy)(EVP_PKEY_CTX * dst,const EVP_PKEY_CTX * src))1667 void EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD *pmeth,
1668 int (*copy) (EVP_PKEY_CTX *dst,
1669 const EVP_PKEY_CTX *src))
1670 {
1671 pmeth->copy = copy;
1672 }
1673
EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD * pmeth,void (* cleanup)(EVP_PKEY_CTX * ctx))1674 void EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD *pmeth,
1675 void (*cleanup) (EVP_PKEY_CTX *ctx))
1676 {
1677 pmeth->cleanup = cleanup;
1678 }
1679
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))1680 void EVP_PKEY_meth_set_paramgen(EVP_PKEY_METHOD *pmeth,
1681 int (*paramgen_init) (EVP_PKEY_CTX *ctx),
1682 int (*paramgen) (EVP_PKEY_CTX *ctx,
1683 EVP_PKEY *pkey))
1684 {
1685 pmeth->paramgen_init = paramgen_init;
1686 pmeth->paramgen = paramgen;
1687 }
1688
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))1689 void EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD *pmeth,
1690 int (*keygen_init) (EVP_PKEY_CTX *ctx),
1691 int (*keygen) (EVP_PKEY_CTX *ctx,
1692 EVP_PKEY *pkey))
1693 {
1694 pmeth->keygen_init = keygen_init;
1695 pmeth->keygen = keygen;
1696 }
1697
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))1698 void EVP_PKEY_meth_set_sign(EVP_PKEY_METHOD *pmeth,
1699 int (*sign_init) (EVP_PKEY_CTX *ctx),
1700 int (*sign) (EVP_PKEY_CTX *ctx,
1701 unsigned char *sig, size_t *siglen,
1702 const unsigned char *tbs,
1703 size_t tbslen))
1704 {
1705 pmeth->sign_init = sign_init;
1706 pmeth->sign = sign;
1707 }
1708
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))1709 void EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD *pmeth,
1710 int (*verify_init) (EVP_PKEY_CTX *ctx),
1711 int (*verify) (EVP_PKEY_CTX *ctx,
1712 const unsigned char *sig,
1713 size_t siglen,
1714 const unsigned char *tbs,
1715 size_t tbslen))
1716 {
1717 pmeth->verify_init = verify_init;
1718 pmeth->verify = verify;
1719 }
1720
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))1721 void EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD *pmeth,
1722 int (*verify_recover_init) (EVP_PKEY_CTX
1723 *ctx),
1724 int (*verify_recover) (EVP_PKEY_CTX
1725 *ctx,
1726 unsigned char
1727 *sig,
1728 size_t *siglen,
1729 const unsigned
1730 char *tbs,
1731 size_t tbslen))
1732 {
1733 pmeth->verify_recover_init = verify_recover_init;
1734 pmeth->verify_recover = verify_recover;
1735 }
1736
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))1737 void EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD *pmeth,
1738 int (*signctx_init) (EVP_PKEY_CTX *ctx,
1739 EVP_MD_CTX *mctx),
1740 int (*signctx) (EVP_PKEY_CTX *ctx,
1741 unsigned char *sig,
1742 size_t *siglen,
1743 EVP_MD_CTX *mctx))
1744 {
1745 pmeth->signctx_init = signctx_init;
1746 pmeth->signctx = signctx;
1747 }
1748
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))1749 void EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD *pmeth,
1750 int (*verifyctx_init) (EVP_PKEY_CTX *ctx,
1751 EVP_MD_CTX *mctx),
1752 int (*verifyctx) (EVP_PKEY_CTX *ctx,
1753 const unsigned char *sig,
1754 int siglen,
1755 EVP_MD_CTX *mctx))
1756 {
1757 pmeth->verifyctx_init = verifyctx_init;
1758 pmeth->verifyctx = verifyctx;
1759 }
1760
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))1761 void EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD *pmeth,
1762 int (*encrypt_init) (EVP_PKEY_CTX *ctx),
1763 int (*encryptfn) (EVP_PKEY_CTX *ctx,
1764 unsigned char *out,
1765 size_t *outlen,
1766 const unsigned char *in,
1767 size_t inlen))
1768 {
1769 pmeth->encrypt_init = encrypt_init;
1770 pmeth->encrypt = encryptfn;
1771 }
1772
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))1773 void EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD *pmeth,
1774 int (*decrypt_init) (EVP_PKEY_CTX *ctx),
1775 int (*decrypt) (EVP_PKEY_CTX *ctx,
1776 unsigned char *out,
1777 size_t *outlen,
1778 const unsigned char *in,
1779 size_t inlen))
1780 {
1781 pmeth->decrypt_init = decrypt_init;
1782 pmeth->decrypt = decrypt;
1783 }
1784
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))1785 void EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD *pmeth,
1786 int (*derive_init) (EVP_PKEY_CTX *ctx),
1787 int (*derive) (EVP_PKEY_CTX *ctx,
1788 unsigned char *key,
1789 size_t *keylen))
1790 {
1791 pmeth->derive_init = derive_init;
1792 pmeth->derive = derive;
1793 }
1794
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))1795 void EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD *pmeth,
1796 int (*ctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
1797 void *p2),
1798 int (*ctrl_str) (EVP_PKEY_CTX *ctx,
1799 const char *type,
1800 const char *value))
1801 {
1802 pmeth->ctrl = ctrl;
1803 pmeth->ctrl_str = ctrl_str;
1804 }
1805
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))1806 void EVP_PKEY_meth_set_digestsign(EVP_PKEY_METHOD *pmeth,
1807 int (*digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen,
1808 const unsigned char *tbs, size_t tbslen))
1809 {
1810 pmeth->digestsign = digestsign;
1811 }
1812
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))1813 void EVP_PKEY_meth_set_digestverify(EVP_PKEY_METHOD *pmeth,
1814 int (*digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig,
1815 size_t siglen, const unsigned char *tbs,
1816 size_t tbslen))
1817 {
1818 pmeth->digestverify = digestverify;
1819 }
1820
EVP_PKEY_meth_set_check(EVP_PKEY_METHOD * pmeth,int (* check)(EVP_PKEY * pkey))1821 void EVP_PKEY_meth_set_check(EVP_PKEY_METHOD *pmeth,
1822 int (*check) (EVP_PKEY *pkey))
1823 {
1824 pmeth->check = check;
1825 }
1826
EVP_PKEY_meth_set_public_check(EVP_PKEY_METHOD * pmeth,int (* check)(EVP_PKEY * pkey))1827 void EVP_PKEY_meth_set_public_check(EVP_PKEY_METHOD *pmeth,
1828 int (*check) (EVP_PKEY *pkey))
1829 {
1830 pmeth->public_check = check;
1831 }
1832
EVP_PKEY_meth_set_param_check(EVP_PKEY_METHOD * pmeth,int (* check)(EVP_PKEY * pkey))1833 void EVP_PKEY_meth_set_param_check(EVP_PKEY_METHOD *pmeth,
1834 int (*check) (EVP_PKEY *pkey))
1835 {
1836 pmeth->param_check = check;
1837 }
1838
EVP_PKEY_meth_set_digest_custom(EVP_PKEY_METHOD * pmeth,int (* digest_custom)(EVP_PKEY_CTX * ctx,EVP_MD_CTX * mctx))1839 void EVP_PKEY_meth_set_digest_custom(EVP_PKEY_METHOD *pmeth,
1840 int (*digest_custom) (EVP_PKEY_CTX *ctx,
1841 EVP_MD_CTX *mctx))
1842 {
1843 pmeth->digest_custom = digest_custom;
1844 }
1845
EVP_PKEY_meth_get_init(const EVP_PKEY_METHOD * pmeth,int (** pinit)(EVP_PKEY_CTX * ctx))1846 void EVP_PKEY_meth_get_init(const EVP_PKEY_METHOD *pmeth,
1847 int (**pinit) (EVP_PKEY_CTX *ctx))
1848 {
1849 *pinit = pmeth->init;
1850 }
1851
EVP_PKEY_meth_get_copy(const EVP_PKEY_METHOD * pmeth,int (** pcopy)(EVP_PKEY_CTX * dst,const EVP_PKEY_CTX * src))1852 void EVP_PKEY_meth_get_copy(const EVP_PKEY_METHOD *pmeth,
1853 int (**pcopy) (EVP_PKEY_CTX *dst,
1854 const EVP_PKEY_CTX *src))
1855 {
1856 *pcopy = pmeth->copy;
1857 }
1858
EVP_PKEY_meth_get_cleanup(const EVP_PKEY_METHOD * pmeth,void (** pcleanup)(EVP_PKEY_CTX * ctx))1859 void EVP_PKEY_meth_get_cleanup(const EVP_PKEY_METHOD *pmeth,
1860 void (**pcleanup) (EVP_PKEY_CTX *ctx))
1861 {
1862 *pcleanup = pmeth->cleanup;
1863 }
1864
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))1865 void EVP_PKEY_meth_get_paramgen(const EVP_PKEY_METHOD *pmeth,
1866 int (**pparamgen_init) (EVP_PKEY_CTX *ctx),
1867 int (**pparamgen) (EVP_PKEY_CTX *ctx,
1868 EVP_PKEY *pkey))
1869 {
1870 if (pparamgen_init)
1871 *pparamgen_init = pmeth->paramgen_init;
1872 if (pparamgen)
1873 *pparamgen = pmeth->paramgen;
1874 }
1875
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))1876 void EVP_PKEY_meth_get_keygen(const EVP_PKEY_METHOD *pmeth,
1877 int (**pkeygen_init) (EVP_PKEY_CTX *ctx),
1878 int (**pkeygen) (EVP_PKEY_CTX *ctx,
1879 EVP_PKEY *pkey))
1880 {
1881 if (pkeygen_init)
1882 *pkeygen_init = pmeth->keygen_init;
1883 if (pkeygen)
1884 *pkeygen = pmeth->keygen;
1885 }
1886
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))1887 void EVP_PKEY_meth_get_sign(const EVP_PKEY_METHOD *pmeth,
1888 int (**psign_init) (EVP_PKEY_CTX *ctx),
1889 int (**psign) (EVP_PKEY_CTX *ctx,
1890 unsigned char *sig, size_t *siglen,
1891 const unsigned char *tbs,
1892 size_t tbslen))
1893 {
1894 if (psign_init)
1895 *psign_init = pmeth->sign_init;
1896 if (psign)
1897 *psign = pmeth->sign;
1898 }
1899
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))1900 void EVP_PKEY_meth_get_verify(const EVP_PKEY_METHOD *pmeth,
1901 int (**pverify_init) (EVP_PKEY_CTX *ctx),
1902 int (**pverify) (EVP_PKEY_CTX *ctx,
1903 const unsigned char *sig,
1904 size_t siglen,
1905 const unsigned char *tbs,
1906 size_t tbslen))
1907 {
1908 if (pverify_init)
1909 *pverify_init = pmeth->verify_init;
1910 if (pverify)
1911 *pverify = pmeth->verify;
1912 }
1913
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))1914 void EVP_PKEY_meth_get_verify_recover(const EVP_PKEY_METHOD *pmeth,
1915 int (**pverify_recover_init) (EVP_PKEY_CTX
1916 *ctx),
1917 int (**pverify_recover) (EVP_PKEY_CTX
1918 *ctx,
1919 unsigned char
1920 *sig,
1921 size_t *siglen,
1922 const unsigned
1923 char *tbs,
1924 size_t tbslen))
1925 {
1926 if (pverify_recover_init)
1927 *pverify_recover_init = pmeth->verify_recover_init;
1928 if (pverify_recover)
1929 *pverify_recover = pmeth->verify_recover;
1930 }
1931
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))1932 void EVP_PKEY_meth_get_signctx(const EVP_PKEY_METHOD *pmeth,
1933 int (**psignctx_init) (EVP_PKEY_CTX *ctx,
1934 EVP_MD_CTX *mctx),
1935 int (**psignctx) (EVP_PKEY_CTX *ctx,
1936 unsigned char *sig,
1937 size_t *siglen,
1938 EVP_MD_CTX *mctx))
1939 {
1940 if (psignctx_init)
1941 *psignctx_init = pmeth->signctx_init;
1942 if (psignctx)
1943 *psignctx = pmeth->signctx;
1944 }
1945
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))1946 void EVP_PKEY_meth_get_verifyctx(const EVP_PKEY_METHOD *pmeth,
1947 int (**pverifyctx_init) (EVP_PKEY_CTX *ctx,
1948 EVP_MD_CTX *mctx),
1949 int (**pverifyctx) (EVP_PKEY_CTX *ctx,
1950 const unsigned char *sig,
1951 int siglen,
1952 EVP_MD_CTX *mctx))
1953 {
1954 if (pverifyctx_init)
1955 *pverifyctx_init = pmeth->verifyctx_init;
1956 if (pverifyctx)
1957 *pverifyctx = pmeth->verifyctx;
1958 }
1959
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))1960 void EVP_PKEY_meth_get_encrypt(const EVP_PKEY_METHOD *pmeth,
1961 int (**pencrypt_init) (EVP_PKEY_CTX *ctx),
1962 int (**pencryptfn) (EVP_PKEY_CTX *ctx,
1963 unsigned char *out,
1964 size_t *outlen,
1965 const unsigned char *in,
1966 size_t inlen))
1967 {
1968 if (pencrypt_init)
1969 *pencrypt_init = pmeth->encrypt_init;
1970 if (pencryptfn)
1971 *pencryptfn = pmeth->encrypt;
1972 }
1973
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))1974 void EVP_PKEY_meth_get_decrypt(const EVP_PKEY_METHOD *pmeth,
1975 int (**pdecrypt_init) (EVP_PKEY_CTX *ctx),
1976 int (**pdecrypt) (EVP_PKEY_CTX *ctx,
1977 unsigned char *out,
1978 size_t *outlen,
1979 const unsigned char *in,
1980 size_t inlen))
1981 {
1982 if (pdecrypt_init)
1983 *pdecrypt_init = pmeth->decrypt_init;
1984 if (pdecrypt)
1985 *pdecrypt = pmeth->decrypt;
1986 }
1987
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))1988 void EVP_PKEY_meth_get_derive(const EVP_PKEY_METHOD *pmeth,
1989 int (**pderive_init) (EVP_PKEY_CTX *ctx),
1990 int (**pderive) (EVP_PKEY_CTX *ctx,
1991 unsigned char *key,
1992 size_t *keylen))
1993 {
1994 if (pderive_init)
1995 *pderive_init = pmeth->derive_init;
1996 if (pderive)
1997 *pderive = pmeth->derive;
1998 }
1999
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))2000 void EVP_PKEY_meth_get_ctrl(const EVP_PKEY_METHOD *pmeth,
2001 int (**pctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
2002 void *p2),
2003 int (**pctrl_str) (EVP_PKEY_CTX *ctx,
2004 const char *type,
2005 const char *value))
2006 {
2007 if (pctrl)
2008 *pctrl = pmeth->ctrl;
2009 if (pctrl_str)
2010 *pctrl_str = pmeth->ctrl_str;
2011 }
2012
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))2013 void EVP_PKEY_meth_get_digestsign(const EVP_PKEY_METHOD *pmeth,
2014 int (**digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen,
2015 const unsigned char *tbs, size_t tbslen))
2016 {
2017 if (digestsign)
2018 *digestsign = pmeth->digestsign;
2019 }
2020
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))2021 void EVP_PKEY_meth_get_digestverify(const EVP_PKEY_METHOD *pmeth,
2022 int (**digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig,
2023 size_t siglen, const unsigned char *tbs,
2024 size_t tbslen))
2025 {
2026 if (digestverify)
2027 *digestverify = pmeth->digestverify;
2028 }
2029
EVP_PKEY_meth_get_check(const EVP_PKEY_METHOD * pmeth,int (** pcheck)(EVP_PKEY * pkey))2030 void EVP_PKEY_meth_get_check(const EVP_PKEY_METHOD *pmeth,
2031 int (**pcheck) (EVP_PKEY *pkey))
2032 {
2033 if (pcheck != NULL)
2034 *pcheck = pmeth->check;
2035 }
2036
EVP_PKEY_meth_get_public_check(const EVP_PKEY_METHOD * pmeth,int (** pcheck)(EVP_PKEY * pkey))2037 void EVP_PKEY_meth_get_public_check(const EVP_PKEY_METHOD *pmeth,
2038 int (**pcheck) (EVP_PKEY *pkey))
2039 {
2040 if (pcheck != NULL)
2041 *pcheck = pmeth->public_check;
2042 }
2043
EVP_PKEY_meth_get_param_check(const EVP_PKEY_METHOD * pmeth,int (** pcheck)(EVP_PKEY * pkey))2044 void EVP_PKEY_meth_get_param_check(const EVP_PKEY_METHOD *pmeth,
2045 int (**pcheck) (EVP_PKEY *pkey))
2046 {
2047 if (pcheck != NULL)
2048 *pcheck = pmeth->param_check;
2049 }
2050
EVP_PKEY_meth_get_digest_custom(const EVP_PKEY_METHOD * pmeth,int (** pdigest_custom)(EVP_PKEY_CTX * ctx,EVP_MD_CTX * mctx))2051 void EVP_PKEY_meth_get_digest_custom(const EVP_PKEY_METHOD *pmeth,
2052 int (**pdigest_custom) (EVP_PKEY_CTX *ctx,
2053 EVP_MD_CTX *mctx))
2054 {
2055 if (pdigest_custom != NULL)
2056 *pdigest_custom = pmeth->digest_custom;
2057 }
2058
2059 #endif /* FIPS_MODULE */
2060
