1 /*
2 * Copyright 2006-2022 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_EC
70 ossl_ecx25519_pkey_method,
71 ossl_ecx448_pkey_method,
72 # endif
73 # ifndef OPENSSL_NO_EC
74 ossl_ed25519_pkey_method,
75 ossl_ed448_pkey_method,
76 # endif
77 };
78
79 DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, pmeth_fn, pmeth_func);
80
pmeth_func_cmp(const EVP_PKEY_METHOD * const * a,pmeth_fn const * b)81 static int pmeth_func_cmp(const EVP_PKEY_METHOD *const *a, pmeth_fn const *b)
82 {
83 return ((*a)->pkey_id - ((**b)())->pkey_id);
84 }
85
86 IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, pmeth_fn, pmeth_func);
87
pmeth_cmp(const EVP_PKEY_METHOD * const * a,const EVP_PKEY_METHOD * const * b)88 static int pmeth_cmp(const EVP_PKEY_METHOD *const *a,
89 const EVP_PKEY_METHOD *const *b)
90 {
91 return ((*a)->pkey_id - (*b)->pkey_id);
92 }
93
evp_pkey_meth_find_added_by_application(int type)94 static const EVP_PKEY_METHOD *evp_pkey_meth_find_added_by_application(int type)
95 {
96 if (app_pkey_methods != NULL) {
97 int idx;
98 EVP_PKEY_METHOD tmp;
99
100 tmp.pkey_id = type;
101 idx = sk_EVP_PKEY_METHOD_find(app_pkey_methods, &tmp);
102 if (idx >= 0)
103 return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx);
104 }
105 return NULL;
106 }
107
EVP_PKEY_meth_find(int type)108 const EVP_PKEY_METHOD *EVP_PKEY_meth_find(int type)
109 {
110 pmeth_fn *ret;
111 EVP_PKEY_METHOD tmp;
112 const EVP_PKEY_METHOD *t;
113
114 if ((t = evp_pkey_meth_find_added_by_application(type)) != NULL)
115 return t;
116
117 tmp.pkey_id = type;
118 t = &tmp;
119 ret = OBJ_bsearch_pmeth_func(&t, standard_methods,
120 OSSL_NELEM(standard_methods));
121 if (ret == NULL || *ret == NULL)
122 return NULL;
123 return (**ret)();
124 }
125
EVP_PKEY_meth_new(int id,int flags)126 EVP_PKEY_METHOD *EVP_PKEY_meth_new(int id, int flags)
127 {
128 EVP_PKEY_METHOD *pmeth;
129
130 pmeth = OPENSSL_zalloc(sizeof(*pmeth));
131 if (pmeth == NULL) {
132 ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
133 return NULL;
134 }
135
136 pmeth->pkey_id = id;
137 pmeth->flags = flags | EVP_PKEY_FLAG_DYNAMIC;
138 return pmeth;
139 }
140
help_get_legacy_alg_type_from_keymgmt(const char * keytype,void * arg)141 static void help_get_legacy_alg_type_from_keymgmt(const char *keytype,
142 void *arg)
143 {
144 int *type = arg;
145
146 if (*type == NID_undef)
147 *type = evp_pkey_name2type(keytype);
148 }
149
get_legacy_alg_type_from_keymgmt(const EVP_KEYMGMT * keymgmt)150 static int get_legacy_alg_type_from_keymgmt(const EVP_KEYMGMT *keymgmt)
151 {
152 int type = NID_undef;
153
154 EVP_KEYMGMT_names_do_all(keymgmt, help_get_legacy_alg_type_from_keymgmt,
155 &type);
156 return type;
157 }
158 #endif /* FIPS_MODULE */
159
evp_pkey_ctx_state(const EVP_PKEY_CTX * ctx)160 int evp_pkey_ctx_state(const EVP_PKEY_CTX *ctx)
161 {
162 if (ctx->operation == EVP_PKEY_OP_UNDEFINED)
163 return EVP_PKEY_STATE_UNKNOWN;
164
165 if ((EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
166 && ctx->op.kex.algctx != NULL)
167 || (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
168 && ctx->op.sig.algctx != NULL)
169 || (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
170 && ctx->op.ciph.algctx != NULL)
171 || (EVP_PKEY_CTX_IS_GEN_OP(ctx)
172 && ctx->op.keymgmt.genctx != NULL)
173 || (EVP_PKEY_CTX_IS_KEM_OP(ctx)
174 && ctx->op.encap.algctx != NULL))
175 return EVP_PKEY_STATE_PROVIDER;
176
177 return EVP_PKEY_STATE_LEGACY;
178 }
179
int_ctx_new(OSSL_LIB_CTX * libctx,EVP_PKEY * pkey,ENGINE * e,const char * keytype,const char * propquery,int id)180 static EVP_PKEY_CTX *int_ctx_new(OSSL_LIB_CTX *libctx,
181 EVP_PKEY *pkey, ENGINE *e,
182 const char *keytype, const char *propquery,
183 int id)
184
185 {
186 EVP_PKEY_CTX *ret = NULL;
187 const EVP_PKEY_METHOD *pmeth = NULL, *app_pmeth = NULL;
188 EVP_KEYMGMT *keymgmt = NULL;
189
190 /* Code below to be removed when legacy support is dropped. */
191 /* BEGIN legacy */
192 if (id == -1) {
193 if (pkey != NULL && !evp_pkey_is_provided(pkey)) {
194 id = pkey->type;
195 } else {
196 if (pkey != NULL) {
197 /* Must be provided if we get here */
198 keytype = EVP_KEYMGMT_get0_name(pkey->keymgmt);
199 }
200 #ifndef FIPS_MODULE
201 if (keytype != NULL) {
202 id = evp_pkey_name2type(keytype);
203 if (id == NID_undef)
204 id = -1;
205 }
206 #endif
207 }
208 }
209 /* If no ID was found here, we can only resort to find a keymgmt */
210 if (id == -1) {
211 #ifndef FIPS_MODULE
212 /* Using engine with a key without id will not work */
213 if (e != NULL) {
214 ERR_raise(ERR_LIB_EVP, EVP_R_UNSUPPORTED_ALGORITHM);
215 return NULL;
216 }
217 #endif
218 goto common;
219 }
220
221 #ifndef FIPS_MODULE
222 /*
223 * Here, we extract what information we can for the purpose of
224 * supporting usage with implementations from providers, to make
225 * for a smooth transition from legacy stuff to provider based stuff.
226 *
227 * If an engine is given, this is entirely legacy, and we should not
228 * pretend anything else, so we clear the name.
229 */
230 if (e != NULL)
231 keytype = NULL;
232 if (e == NULL && (pkey == NULL || pkey->foreign == 0))
233 keytype = OBJ_nid2sn(id);
234
235 # ifndef OPENSSL_NO_ENGINE
236 if (e == NULL && pkey != NULL)
237 e = pkey->pmeth_engine != NULL ? pkey->pmeth_engine : pkey->engine;
238 /* Try to find an ENGINE which implements this method */
239 if (e != NULL) {
240 if (!ENGINE_init(e)) {
241 ERR_raise(ERR_LIB_EVP, ERR_R_ENGINE_LIB);
242 return NULL;
243 }
244 } else {
245 e = ENGINE_get_pkey_meth_engine(id);
246 }
247
248 /*
249 * If an ENGINE handled this method look it up. Otherwise use internal
250 * tables.
251 */
252 if (e != NULL)
253 pmeth = ENGINE_get_pkey_meth(e, id);
254 else if (pkey != NULL && pkey->foreign)
255 pmeth = EVP_PKEY_meth_find(id);
256 else
257 # endif
258 app_pmeth = pmeth = evp_pkey_meth_find_added_by_application(id);
259
260 /* END legacy */
261 #endif /* FIPS_MODULE */
262 common:
263 /*
264 * If there's no engine and no app supplied pmeth and there's a name, we try
265 * fetching a provider implementation.
266 */
267 if (e == NULL && app_pmeth == NULL && keytype != NULL) {
268 /*
269 * If |pkey| is given and is provided, we take a reference to its
270 * keymgmt. Otherwise, we fetch one for the keytype we got. This
271 * is to ensure that operation init functions can access what they
272 * need through this single pointer.
273 */
274 if (pkey != NULL && pkey->keymgmt != NULL) {
275 if (!EVP_KEYMGMT_up_ref(pkey->keymgmt))
276 ERR_raise(ERR_LIB_EVP, EVP_R_INITIALIZATION_ERROR);
277 else
278 keymgmt = pkey->keymgmt;
279 } else {
280 keymgmt = EVP_KEYMGMT_fetch(libctx, keytype, propquery);
281 }
282 if (keymgmt == NULL)
283 return NULL; /* EVP_KEYMGMT_fetch() recorded an error */
284
285 #ifndef FIPS_MODULE
286 /*
287 * Chase down the legacy NID, as that might be needed for diverse
288 * purposes, such as ensure that EVP_PKEY_type() can return sensible
289 * values. We go through all keymgmt names, because the keytype
290 * that's passed to this function doesn't necessarily translate
291 * directly.
292 */
293 if (keymgmt != NULL) {
294 int tmp_id = get_legacy_alg_type_from_keymgmt(keymgmt);
295
296 if (tmp_id != NID_undef) {
297 if (id == -1) {
298 id = tmp_id;
299 } else {
300 /*
301 * It really really shouldn't differ. If it still does,
302 * something is very wrong.
303 */
304 if (!ossl_assert(id == tmp_id)) {
305 ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR);
306 EVP_KEYMGMT_free(keymgmt);
307 return NULL;
308 }
309 }
310 }
311 }
312 #endif
313 }
314
315 if (pmeth == NULL && keymgmt == NULL) {
316 ERR_raise(ERR_LIB_EVP, EVP_R_UNSUPPORTED_ALGORITHM);
317 } else {
318 ret = OPENSSL_zalloc(sizeof(*ret));
319 if (ret == NULL)
320 ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
321 }
322
323 #if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODULE)
324 if ((ret == NULL || pmeth == NULL) && e != NULL)
325 ENGINE_finish(e);
326 #endif
327
328 if (ret == NULL) {
329 EVP_KEYMGMT_free(keymgmt);
330 return NULL;
331 }
332 if (propquery != NULL) {
333 ret->propquery = OPENSSL_strdup(propquery);
334 if (ret->propquery == NULL) {
335 OPENSSL_free(ret);
336 EVP_KEYMGMT_free(keymgmt);
337 return NULL;
338 }
339 }
340 ret->libctx = libctx;
341 ret->keytype = keytype;
342 ret->keymgmt = keymgmt;
343 ret->legacy_keytype = id;
344 ret->engine = e;
345 ret->pmeth = pmeth;
346 ret->operation = EVP_PKEY_OP_UNDEFINED;
347 ret->pkey = pkey;
348 if (pkey != NULL)
349 EVP_PKEY_up_ref(pkey);
350
351 if (pmeth != NULL && pmeth->init != NULL) {
352 if (pmeth->init(ret) <= 0) {
353 ret->pmeth = NULL;
354 EVP_PKEY_CTX_free(ret);
355 return NULL;
356 }
357 }
358
359 return ret;
360 }
361
362 /*- All methods below can also be used in FIPS_MODULE */
363
EVP_PKEY_CTX_new_from_name(OSSL_LIB_CTX * libctx,const char * name,const char * propquery)364 EVP_PKEY_CTX *EVP_PKEY_CTX_new_from_name(OSSL_LIB_CTX *libctx,
365 const char *name,
366 const char *propquery)
367 {
368 return int_ctx_new(libctx, NULL, NULL, name, propquery, -1);
369 }
370
EVP_PKEY_CTX_new_from_pkey(OSSL_LIB_CTX * libctx,EVP_PKEY * pkey,const char * propquery)371 EVP_PKEY_CTX *EVP_PKEY_CTX_new_from_pkey(OSSL_LIB_CTX *libctx, EVP_PKEY *pkey,
372 const char *propquery)
373 {
374 return int_ctx_new(libctx, pkey, NULL, NULL, propquery, -1);
375 }
376
evp_pkey_ctx_free_old_ops(EVP_PKEY_CTX * ctx)377 void evp_pkey_ctx_free_old_ops(EVP_PKEY_CTX *ctx)
378 {
379 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
380 if (ctx->op.sig.algctx != NULL && ctx->op.sig.signature != NULL)
381 ctx->op.sig.signature->freectx(ctx->op.sig.algctx);
382 EVP_SIGNATURE_free(ctx->op.sig.signature);
383 ctx->op.sig.algctx = NULL;
384 ctx->op.sig.signature = NULL;
385 } else if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
386 if (ctx->op.kex.algctx != NULL && ctx->op.kex.exchange != NULL)
387 ctx->op.kex.exchange->freectx(ctx->op.kex.algctx);
388 EVP_KEYEXCH_free(ctx->op.kex.exchange);
389 ctx->op.kex.algctx = NULL;
390 ctx->op.kex.exchange = NULL;
391 } else if (EVP_PKEY_CTX_IS_KEM_OP(ctx)) {
392 if (ctx->op.encap.algctx != NULL && ctx->op.encap.kem != NULL)
393 ctx->op.encap.kem->freectx(ctx->op.encap.algctx);
394 EVP_KEM_free(ctx->op.encap.kem);
395 ctx->op.encap.algctx = NULL;
396 ctx->op.encap.kem = NULL;
397 }
398 else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)) {
399 if (ctx->op.ciph.algctx != NULL && ctx->op.ciph.cipher != NULL)
400 ctx->op.ciph.cipher->freectx(ctx->op.ciph.algctx);
401 EVP_ASYM_CIPHER_free(ctx->op.ciph.cipher);
402 ctx->op.ciph.algctx = NULL;
403 ctx->op.ciph.cipher = NULL;
404 } else if (EVP_PKEY_CTX_IS_GEN_OP(ctx)) {
405 if (ctx->op.keymgmt.genctx != NULL && ctx->keymgmt != NULL)
406 evp_keymgmt_gen_cleanup(ctx->keymgmt, ctx->op.keymgmt.genctx);
407 }
408 }
409
EVP_PKEY_CTX_free(EVP_PKEY_CTX * ctx)410 void EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx)
411 {
412 if (ctx == NULL)
413 return;
414 if (ctx->pmeth && ctx->pmeth->cleanup)
415 ctx->pmeth->cleanup(ctx);
416
417 evp_pkey_ctx_free_old_ops(ctx);
418 #ifndef FIPS_MODULE
419 evp_pkey_ctx_free_all_cached_data(ctx);
420 #endif
421 EVP_KEYMGMT_free(ctx->keymgmt);
422
423 OPENSSL_free(ctx->propquery);
424 EVP_PKEY_free(ctx->pkey);
425 EVP_PKEY_free(ctx->peerkey);
426 #if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODULE)
427 ENGINE_finish(ctx->engine);
428 #endif
429 BN_free(ctx->rsa_pubexp);
430 OPENSSL_free(ctx);
431 }
432
433 #ifndef FIPS_MODULE
434
EVP_PKEY_meth_get0_info(int * ppkey_id,int * pflags,const EVP_PKEY_METHOD * meth)435 void EVP_PKEY_meth_get0_info(int *ppkey_id, int *pflags,
436 const EVP_PKEY_METHOD *meth)
437 {
438 if (ppkey_id)
439 *ppkey_id = meth->pkey_id;
440 if (pflags)
441 *pflags = meth->flags;
442 }
443
EVP_PKEY_meth_copy(EVP_PKEY_METHOD * dst,const EVP_PKEY_METHOD * src)444 void EVP_PKEY_meth_copy(EVP_PKEY_METHOD *dst, const EVP_PKEY_METHOD *src)
445 {
446 int pkey_id = dst->pkey_id;
447 int flags = dst->flags;
448
449 *dst = *src;
450
451 /* We only copy the function pointers so restore the other values */
452 dst->pkey_id = pkey_id;
453 dst->flags = flags;
454 }
455
EVP_PKEY_meth_free(EVP_PKEY_METHOD * pmeth)456 void EVP_PKEY_meth_free(EVP_PKEY_METHOD *pmeth)
457 {
458 if (pmeth && (pmeth->flags & EVP_PKEY_FLAG_DYNAMIC))
459 OPENSSL_free(pmeth);
460 }
461
EVP_PKEY_CTX_new(EVP_PKEY * pkey,ENGINE * e)462 EVP_PKEY_CTX *EVP_PKEY_CTX_new(EVP_PKEY *pkey, ENGINE *e)
463 {
464 return int_ctx_new(NULL, pkey, e, NULL, NULL, -1);
465 }
466
EVP_PKEY_CTX_new_id(int id,ENGINE * e)467 EVP_PKEY_CTX *EVP_PKEY_CTX_new_id(int id, ENGINE *e)
468 {
469 return int_ctx_new(NULL, NULL, e, NULL, NULL, id);
470 }
471
EVP_PKEY_CTX_dup(const EVP_PKEY_CTX * pctx)472 EVP_PKEY_CTX *EVP_PKEY_CTX_dup(const EVP_PKEY_CTX *pctx)
473 {
474 EVP_PKEY_CTX *rctx;
475
476 # ifndef OPENSSL_NO_ENGINE
477 /* Make sure it's safe to copy a pkey context using an ENGINE */
478 if (pctx->engine && !ENGINE_init(pctx->engine)) {
479 ERR_raise(ERR_LIB_EVP, ERR_R_ENGINE_LIB);
480 return 0;
481 }
482 # endif
483 rctx = OPENSSL_zalloc(sizeof(*rctx));
484 if (rctx == NULL) {
485 ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
486 return NULL;
487 }
488
489 if (pctx->pkey != NULL)
490 EVP_PKEY_up_ref(pctx->pkey);
491 rctx->pkey = pctx->pkey;
492 rctx->operation = pctx->operation;
493 rctx->libctx = pctx->libctx;
494 rctx->keytype = pctx->keytype;
495 rctx->propquery = NULL;
496 if (pctx->propquery != NULL) {
497 rctx->propquery = OPENSSL_strdup(pctx->propquery);
498 if (rctx->propquery == NULL)
499 goto err;
500 }
501 rctx->legacy_keytype = pctx->legacy_keytype;
502
503 if (EVP_PKEY_CTX_IS_DERIVE_OP(pctx)) {
504 if (pctx->op.kex.exchange != NULL) {
505 rctx->op.kex.exchange = pctx->op.kex.exchange;
506 if (!EVP_KEYEXCH_up_ref(rctx->op.kex.exchange))
507 goto err;
508 }
509 if (pctx->op.kex.algctx != NULL) {
510 if (!ossl_assert(pctx->op.kex.exchange != NULL))
511 goto err;
512 rctx->op.kex.algctx
513 = pctx->op.kex.exchange->dupctx(pctx->op.kex.algctx);
514 if (rctx->op.kex.algctx == NULL) {
515 EVP_KEYEXCH_free(rctx->op.kex.exchange);
516 rctx->op.kex.exchange = NULL;
517 goto err;
518 }
519 return rctx;
520 }
521 } else if (EVP_PKEY_CTX_IS_SIGNATURE_OP(pctx)) {
522 if (pctx->op.sig.signature != NULL) {
523 rctx->op.sig.signature = pctx->op.sig.signature;
524 if (!EVP_SIGNATURE_up_ref(rctx->op.sig.signature))
525 goto err;
526 }
527 if (pctx->op.sig.algctx != NULL) {
528 if (!ossl_assert(pctx->op.sig.signature != NULL))
529 goto err;
530 rctx->op.sig.algctx
531 = pctx->op.sig.signature->dupctx(pctx->op.sig.algctx);
532 if (rctx->op.sig.algctx == NULL) {
533 EVP_SIGNATURE_free(rctx->op.sig.signature);
534 rctx->op.sig.signature = NULL;
535 goto err;
536 }
537 return rctx;
538 }
539 } else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(pctx)) {
540 if (pctx->op.ciph.cipher != NULL) {
541 rctx->op.ciph.cipher = pctx->op.ciph.cipher;
542 if (!EVP_ASYM_CIPHER_up_ref(rctx->op.ciph.cipher))
543 goto err;
544 }
545 if (pctx->op.ciph.algctx != NULL) {
546 if (!ossl_assert(pctx->op.ciph.cipher != NULL))
547 goto err;
548 rctx->op.ciph.algctx
549 = pctx->op.ciph.cipher->dupctx(pctx->op.ciph.algctx);
550 if (rctx->op.ciph.algctx == NULL) {
551 EVP_ASYM_CIPHER_free(rctx->op.ciph.cipher);
552 rctx->op.ciph.cipher = NULL;
553 goto err;
554 }
555 return rctx;
556 }
557 } else if (EVP_PKEY_CTX_IS_KEM_OP(pctx)) {
558 if (pctx->op.encap.kem != NULL) {
559 rctx->op.encap.kem = pctx->op.encap.kem;
560 if (!EVP_KEM_up_ref(rctx->op.encap.kem))
561 goto err;
562 }
563 if (pctx->op.encap.algctx != NULL) {
564 if (!ossl_assert(pctx->op.encap.kem != NULL))
565 goto err;
566 rctx->op.encap.algctx
567 = pctx->op.encap.kem->dupctx(pctx->op.encap.algctx);
568 if (rctx->op.encap.algctx == NULL) {
569 EVP_KEM_free(rctx->op.encap.kem);
570 rctx->op.encap.kem = NULL;
571 goto err;
572 }
573 return rctx;
574 }
575 } else if (EVP_PKEY_CTX_IS_GEN_OP(pctx)) {
576 /* Not supported - This would need a gen_dupctx() to work */
577 goto err;
578 }
579
580 rctx->pmeth = pctx->pmeth;
581 # ifndef OPENSSL_NO_ENGINE
582 rctx->engine = pctx->engine;
583 # endif
584
585 if (pctx->peerkey != NULL)
586 EVP_PKEY_up_ref(pctx->peerkey);
587 rctx->peerkey = pctx->peerkey;
588
589 if (pctx->pmeth == NULL) {
590 if (rctx->operation == EVP_PKEY_OP_UNDEFINED) {
591 EVP_KEYMGMT *tmp_keymgmt = pctx->keymgmt;
592 void *provkey;
593
594 provkey = evp_pkey_export_to_provider(pctx->pkey, pctx->libctx,
595 &tmp_keymgmt, pctx->propquery);
596 if (provkey == NULL)
597 goto err;
598 if (!EVP_KEYMGMT_up_ref(tmp_keymgmt))
599 goto err;
600 EVP_KEYMGMT_free(rctx->keymgmt);
601 rctx->keymgmt = tmp_keymgmt;
602 return rctx;
603 }
604 } else if (pctx->pmeth->copy(rctx, pctx) > 0) {
605 return rctx;
606 }
607 err:
608 rctx->pmeth = NULL;
609 EVP_PKEY_CTX_free(rctx);
610 return NULL;
611 }
612
EVP_PKEY_meth_add0(const EVP_PKEY_METHOD * pmeth)613 int EVP_PKEY_meth_add0(const EVP_PKEY_METHOD *pmeth)
614 {
615 if (app_pkey_methods == NULL) {
616 app_pkey_methods = sk_EVP_PKEY_METHOD_new(pmeth_cmp);
617 if (app_pkey_methods == NULL){
618 ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
619 return 0;
620 }
621 }
622 if (!sk_EVP_PKEY_METHOD_push(app_pkey_methods, pmeth)) {
623 ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
624 return 0;
625 }
626 sk_EVP_PKEY_METHOD_sort(app_pkey_methods);
627 return 1;
628 }
629
evp_app_cleanup_int(void)630 void evp_app_cleanup_int(void)
631 {
632 if (app_pkey_methods != NULL)
633 sk_EVP_PKEY_METHOD_pop_free(app_pkey_methods, EVP_PKEY_meth_free);
634 }
635
EVP_PKEY_meth_remove(const EVP_PKEY_METHOD * pmeth)636 int EVP_PKEY_meth_remove(const EVP_PKEY_METHOD *pmeth)
637 {
638 const EVP_PKEY_METHOD *ret;
639
640 ret = sk_EVP_PKEY_METHOD_delete_ptr(app_pkey_methods, pmeth);
641
642 return ret == NULL ? 0 : 1;
643 }
644
EVP_PKEY_meth_get_count(void)645 size_t EVP_PKEY_meth_get_count(void)
646 {
647 size_t rv = OSSL_NELEM(standard_methods);
648
649 if (app_pkey_methods)
650 rv += sk_EVP_PKEY_METHOD_num(app_pkey_methods);
651 return rv;
652 }
653
EVP_PKEY_meth_get0(size_t idx)654 const EVP_PKEY_METHOD *EVP_PKEY_meth_get0(size_t idx)
655 {
656 if (idx < OSSL_NELEM(standard_methods))
657 return (standard_methods[idx])();
658 if (app_pkey_methods == NULL)
659 return NULL;
660 idx -= OSSL_NELEM(standard_methods);
661 if (idx >= (size_t)sk_EVP_PKEY_METHOD_num(app_pkey_methods))
662 return NULL;
663 return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx);
664 }
665 #endif
666
EVP_PKEY_CTX_is_a(EVP_PKEY_CTX * ctx,const char * keytype)667 int EVP_PKEY_CTX_is_a(EVP_PKEY_CTX *ctx, const char *keytype)
668 {
669 #ifndef FIPS_MODULE
670 if (evp_pkey_ctx_is_legacy(ctx))
671 return (ctx->pmeth->pkey_id == evp_pkey_name2type(keytype));
672 #endif
673 return EVP_KEYMGMT_is_a(ctx->keymgmt, keytype);
674 }
675
EVP_PKEY_CTX_set_params(EVP_PKEY_CTX * ctx,const OSSL_PARAM * params)676 int EVP_PKEY_CTX_set_params(EVP_PKEY_CTX *ctx, const OSSL_PARAM *params)
677 {
678 switch (evp_pkey_ctx_state(ctx)) {
679 case EVP_PKEY_STATE_PROVIDER:
680 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
681 && ctx->op.kex.exchange != NULL
682 && ctx->op.kex.exchange->set_ctx_params != NULL)
683 return
684 ctx->op.kex.exchange->set_ctx_params(ctx->op.kex.algctx,
685 params);
686 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
687 && ctx->op.sig.signature != NULL
688 && ctx->op.sig.signature->set_ctx_params != NULL)
689 return
690 ctx->op.sig.signature->set_ctx_params(ctx->op.sig.algctx,
691 params);
692 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
693 && ctx->op.ciph.cipher != NULL
694 && ctx->op.ciph.cipher->set_ctx_params != NULL)
695 return
696 ctx->op.ciph.cipher->set_ctx_params(ctx->op.ciph.algctx,
697 params);
698 if (EVP_PKEY_CTX_IS_GEN_OP(ctx)
699 && ctx->keymgmt != NULL
700 && ctx->keymgmt->gen_set_params != NULL)
701 return
702 evp_keymgmt_gen_set_params(ctx->keymgmt, ctx->op.keymgmt.genctx,
703 params);
704 if (EVP_PKEY_CTX_IS_KEM_OP(ctx)
705 && ctx->op.encap.kem != NULL
706 && ctx->op.encap.kem->set_ctx_params != NULL)
707 return
708 ctx->op.encap.kem->set_ctx_params(ctx->op.encap.algctx,
709 params);
710 break;
711 #ifndef FIPS_MODULE
712 case EVP_PKEY_STATE_UNKNOWN:
713 case EVP_PKEY_STATE_LEGACY:
714 return evp_pkey_ctx_set_params_to_ctrl(ctx, params);
715 #endif
716 }
717 return 0;
718 }
719
EVP_PKEY_CTX_get_params(EVP_PKEY_CTX * ctx,OSSL_PARAM * params)720 int EVP_PKEY_CTX_get_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
721 {
722 switch (evp_pkey_ctx_state(ctx)) {
723 case EVP_PKEY_STATE_PROVIDER:
724 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
725 && ctx->op.kex.exchange != NULL
726 && ctx->op.kex.exchange->get_ctx_params != NULL)
727 return
728 ctx->op.kex.exchange->get_ctx_params(ctx->op.kex.algctx,
729 params);
730 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
731 && ctx->op.sig.signature != NULL
732 && ctx->op.sig.signature->get_ctx_params != NULL)
733 return
734 ctx->op.sig.signature->get_ctx_params(ctx->op.sig.algctx,
735 params);
736 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
737 && ctx->op.ciph.cipher != NULL
738 && ctx->op.ciph.cipher->get_ctx_params != NULL)
739 return
740 ctx->op.ciph.cipher->get_ctx_params(ctx->op.ciph.algctx,
741 params);
742 if (EVP_PKEY_CTX_IS_KEM_OP(ctx)
743 && ctx->op.encap.kem != NULL
744 && ctx->op.encap.kem->get_ctx_params != NULL)
745 return
746 ctx->op.encap.kem->get_ctx_params(ctx->op.encap.algctx,
747 params);
748 break;
749 #ifndef FIPS_MODULE
750 case EVP_PKEY_STATE_UNKNOWN:
751 case EVP_PKEY_STATE_LEGACY:
752 return evp_pkey_ctx_get_params_to_ctrl(ctx, params);
753 #endif
754 }
755 return 0;
756 }
757
758 #ifndef FIPS_MODULE
EVP_PKEY_CTX_gettable_params(const EVP_PKEY_CTX * ctx)759 const OSSL_PARAM *EVP_PKEY_CTX_gettable_params(const EVP_PKEY_CTX *ctx)
760 {
761 void *provctx;
762
763 if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
764 && ctx->op.kex.exchange != NULL
765 && ctx->op.kex.exchange->gettable_ctx_params != NULL) {
766 provctx = ossl_provider_ctx(EVP_KEYEXCH_get0_provider(ctx->op.kex.exchange));
767 return ctx->op.kex.exchange->gettable_ctx_params(ctx->op.kex.algctx,
768 provctx);
769 }
770 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
771 && ctx->op.sig.signature != NULL
772 && ctx->op.sig.signature->gettable_ctx_params != NULL) {
773 provctx = ossl_provider_ctx(
774 EVP_SIGNATURE_get0_provider(ctx->op.sig.signature));
775 return ctx->op.sig.signature->gettable_ctx_params(ctx->op.sig.algctx,
776 provctx);
777 }
778 if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
779 && ctx->op.ciph.cipher != NULL
780 && ctx->op.ciph.cipher->gettable_ctx_params != NULL) {
781 provctx = ossl_provider_ctx(
782 EVP_ASYM_CIPHER_get0_provider(ctx->op.ciph.cipher));
783 return ctx->op.ciph.cipher->gettable_ctx_params(ctx->op.ciph.algctx,
784 provctx);
785 }
786 if (EVP_PKEY_CTX_IS_KEM_OP(ctx)
787 && ctx->op.encap.kem != NULL
788 && ctx->op.encap.kem->gettable_ctx_params != NULL) {
789 provctx = ossl_provider_ctx(EVP_KEM_get0_provider(ctx->op.encap.kem));
790 return ctx->op.encap.kem->gettable_ctx_params(ctx->op.encap.algctx,
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_set1_tls1_prf_secret(EVP_PKEY_CTX * ctx,const unsigned char * sec,int seclen)1018 int EVP_PKEY_CTX_set1_tls1_prf_secret(EVP_PKEY_CTX *ctx,
1019 const unsigned char *sec, int seclen)
1020 {
1021 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
1022 OSSL_KDF_PARAM_SECRET,
1023 EVP_PKEY_OP_DERIVE,
1024 EVP_PKEY_CTRL_TLS_SECRET,
1025 sec, seclen);
1026 }
1027
EVP_PKEY_CTX_add1_tls1_prf_seed(EVP_PKEY_CTX * ctx,const unsigned char * seed,int seedlen)1028 int EVP_PKEY_CTX_add1_tls1_prf_seed(EVP_PKEY_CTX *ctx,
1029 const unsigned char *seed, int seedlen)
1030 {
1031 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
1032 OSSL_KDF_PARAM_SEED,
1033 EVP_PKEY_OP_DERIVE,
1034 EVP_PKEY_CTRL_TLS_SEED,
1035 seed, seedlen);
1036 }
1037
EVP_PKEY_CTX_set_hkdf_md(EVP_PKEY_CTX * ctx,const EVP_MD * md)1038 int EVP_PKEY_CTX_set_hkdf_md(EVP_PKEY_CTX *ctx, const EVP_MD *md)
1039 {
1040 return evp_pkey_ctx_set_md(ctx, md, ctx->op.kex.algctx == NULL,
1041 OSSL_KDF_PARAM_DIGEST,
1042 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_HKDF_MD);
1043 }
1044
EVP_PKEY_CTX_set1_hkdf_salt(EVP_PKEY_CTX * ctx,const unsigned char * salt,int saltlen)1045 int EVP_PKEY_CTX_set1_hkdf_salt(EVP_PKEY_CTX *ctx,
1046 const unsigned char *salt, int saltlen)
1047 {
1048 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
1049 OSSL_KDF_PARAM_SALT,
1050 EVP_PKEY_OP_DERIVE,
1051 EVP_PKEY_CTRL_HKDF_SALT,
1052 salt, saltlen);
1053 }
1054
EVP_PKEY_CTX_set1_hkdf_key(EVP_PKEY_CTX * ctx,const unsigned char * key,int keylen)1055 int EVP_PKEY_CTX_set1_hkdf_key(EVP_PKEY_CTX *ctx,
1056 const unsigned char *key, int keylen)
1057 {
1058 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
1059 OSSL_KDF_PARAM_KEY,
1060 EVP_PKEY_OP_DERIVE,
1061 EVP_PKEY_CTRL_HKDF_KEY,
1062 key, keylen);
1063 }
1064
EVP_PKEY_CTX_add1_hkdf_info(EVP_PKEY_CTX * ctx,const unsigned char * info,int infolen)1065 int EVP_PKEY_CTX_add1_hkdf_info(EVP_PKEY_CTX *ctx,
1066 const unsigned char *info, int infolen)
1067 {
1068 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
1069 OSSL_KDF_PARAM_INFO,
1070 EVP_PKEY_OP_DERIVE,
1071 EVP_PKEY_CTRL_HKDF_INFO,
1072 info, infolen);
1073 }
1074
EVP_PKEY_CTX_set_hkdf_mode(EVP_PKEY_CTX * ctx,int mode)1075 int EVP_PKEY_CTX_set_hkdf_mode(EVP_PKEY_CTX *ctx, int mode)
1076 {
1077 OSSL_PARAM int_params[2], *p = int_params;
1078
1079 if (ctx == NULL || !EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
1080 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1081 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
1082 return -2;
1083 }
1084
1085 /* Code below to be removed when legacy support is dropped. */
1086 if (ctx->op.kex.algctx == NULL)
1087 return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_DERIVE,
1088 EVP_PKEY_CTRL_HKDF_MODE, mode, NULL);
1089 /* end of legacy support */
1090
1091 if (mode < 0) {
1092 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_VALUE);
1093 return 0;
1094 }
1095
1096 *p++ = OSSL_PARAM_construct_int(OSSL_KDF_PARAM_MODE, &mode);
1097 *p = OSSL_PARAM_construct_end();
1098
1099 return EVP_PKEY_CTX_set_params(ctx, int_params);
1100 }
1101
EVP_PKEY_CTX_set1_pbe_pass(EVP_PKEY_CTX * ctx,const char * pass,int passlen)1102 int EVP_PKEY_CTX_set1_pbe_pass(EVP_PKEY_CTX *ctx, const char *pass,
1103 int passlen)
1104 {
1105 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
1106 OSSL_KDF_PARAM_PASSWORD,
1107 EVP_PKEY_OP_DERIVE,
1108 EVP_PKEY_CTRL_PASS,
1109 (const unsigned char *)pass, passlen);
1110 }
1111
EVP_PKEY_CTX_set1_scrypt_salt(EVP_PKEY_CTX * ctx,const unsigned char * salt,int saltlen)1112 int EVP_PKEY_CTX_set1_scrypt_salt(EVP_PKEY_CTX *ctx,
1113 const unsigned char *salt, int saltlen)
1114 {
1115 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.kex.algctx == NULL,
1116 OSSL_KDF_PARAM_SALT,
1117 EVP_PKEY_OP_DERIVE,
1118 EVP_PKEY_CTRL_SCRYPT_SALT,
1119 salt, saltlen);
1120 }
1121
evp_pkey_ctx_set_uint64(EVP_PKEY_CTX * ctx,const char * param,int op,int ctrl,uint64_t val)1122 static int evp_pkey_ctx_set_uint64(EVP_PKEY_CTX *ctx, const char *param,
1123 int op, int ctrl, uint64_t val)
1124 {
1125 OSSL_PARAM uint64_params[2], *p = uint64_params;
1126
1127 if (ctx == NULL || !EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
1128 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1129 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
1130 return -2;
1131 }
1132
1133 /* Code below to be removed when legacy support is dropped. */
1134 if (ctx->op.kex.algctx == NULL)
1135 return EVP_PKEY_CTX_ctrl_uint64(ctx, -1, op, ctrl, val);
1136 /* end of legacy support */
1137
1138 *p++ = OSSL_PARAM_construct_uint64(param, &val);
1139 *p = OSSL_PARAM_construct_end();
1140
1141 return EVP_PKEY_CTX_set_params(ctx, uint64_params);
1142 }
1143
EVP_PKEY_CTX_set_scrypt_N(EVP_PKEY_CTX * ctx,uint64_t n)1144 int EVP_PKEY_CTX_set_scrypt_N(EVP_PKEY_CTX *ctx, uint64_t n)
1145 {
1146 return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_N,
1147 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_SCRYPT_N,
1148 n);
1149 }
1150
EVP_PKEY_CTX_set_scrypt_r(EVP_PKEY_CTX * ctx,uint64_t r)1151 int EVP_PKEY_CTX_set_scrypt_r(EVP_PKEY_CTX *ctx, uint64_t r)
1152 {
1153 return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_R,
1154 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_SCRYPT_R,
1155 r);
1156 }
1157
EVP_PKEY_CTX_set_scrypt_p(EVP_PKEY_CTX * ctx,uint64_t p)1158 int EVP_PKEY_CTX_set_scrypt_p(EVP_PKEY_CTX *ctx, uint64_t p)
1159 {
1160 return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_P,
1161 EVP_PKEY_OP_DERIVE, EVP_PKEY_CTRL_SCRYPT_P,
1162 p);
1163 }
1164
EVP_PKEY_CTX_set_scrypt_maxmem_bytes(EVP_PKEY_CTX * ctx,uint64_t maxmem_bytes)1165 int EVP_PKEY_CTX_set_scrypt_maxmem_bytes(EVP_PKEY_CTX *ctx,
1166 uint64_t maxmem_bytes)
1167 {
1168 return evp_pkey_ctx_set_uint64(ctx, OSSL_KDF_PARAM_SCRYPT_MAXMEM,
1169 EVP_PKEY_OP_DERIVE,
1170 EVP_PKEY_CTRL_SCRYPT_MAXMEM_BYTES,
1171 maxmem_bytes);
1172 }
1173
EVP_PKEY_CTX_set_mac_key(EVP_PKEY_CTX * ctx,const unsigned char * key,int keylen)1174 int EVP_PKEY_CTX_set_mac_key(EVP_PKEY_CTX *ctx, const unsigned char *key,
1175 int keylen)
1176 {
1177 return evp_pkey_ctx_set1_octet_string(ctx, ctx->op.keymgmt.genctx == NULL,
1178 OSSL_PKEY_PARAM_PRIV_KEY,
1179 EVP_PKEY_OP_KEYGEN,
1180 EVP_PKEY_CTRL_SET_MAC_KEY,
1181 key, keylen);
1182 }
1183
EVP_PKEY_CTX_set_kem_op(EVP_PKEY_CTX * ctx,const char * op)1184 int EVP_PKEY_CTX_set_kem_op(EVP_PKEY_CTX *ctx, const char *op)
1185 {
1186 OSSL_PARAM params[2], *p = params;
1187
1188 if (ctx == NULL || op == NULL) {
1189 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_VALUE);
1190 return 0;
1191 }
1192 if (!EVP_PKEY_CTX_IS_KEM_OP(ctx)) {
1193 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1194 return -2;
1195 }
1196 *p++ = OSSL_PARAM_construct_utf8_string(OSSL_KEM_PARAM_OPERATION,
1197 (char *)op, 0);
1198 *p = OSSL_PARAM_construct_end();
1199 return EVP_PKEY_CTX_set_params(ctx, params);
1200 }
1201
evp_pkey_ctx_set1_id_prov(EVP_PKEY_CTX * ctx,const void * id,int len)1202 int evp_pkey_ctx_set1_id_prov(EVP_PKEY_CTX *ctx, const void *id, int len)
1203 {
1204 OSSL_PARAM params[2], *p = params;
1205 int ret;
1206
1207 if (!EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
1208 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1209 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
1210 return -2;
1211 }
1212
1213 *p++ = OSSL_PARAM_construct_octet_string(OSSL_PKEY_PARAM_DIST_ID,
1214 /*
1215 * Cast away the const. This is
1216 * read only so should be safe
1217 */
1218 (void *)id, (size_t)len);
1219 *p++ = OSSL_PARAM_construct_end();
1220
1221 ret = evp_pkey_ctx_set_params_strict(ctx, params);
1222 if (ret == -2)
1223 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1224 return ret;
1225 }
1226
EVP_PKEY_CTX_set1_id(EVP_PKEY_CTX * ctx,const void * id,int len)1227 int EVP_PKEY_CTX_set1_id(EVP_PKEY_CTX *ctx, const void *id, int len)
1228 {
1229 return EVP_PKEY_CTX_ctrl(ctx, -1, -1,
1230 EVP_PKEY_CTRL_SET1_ID, (int)len, (void*)(id));
1231 }
1232
get1_id_data(EVP_PKEY_CTX * ctx,void * id,size_t * id_len)1233 static int get1_id_data(EVP_PKEY_CTX *ctx, void *id, size_t *id_len)
1234 {
1235 int ret;
1236 void *tmp_id = NULL;
1237 OSSL_PARAM params[2], *p = params;
1238
1239 if (!EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
1240 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1241 /* Uses the same return values as EVP_PKEY_CTX_ctrl */
1242 return -2;
1243 }
1244
1245 *p++ = OSSL_PARAM_construct_octet_ptr(OSSL_PKEY_PARAM_DIST_ID,
1246 &tmp_id, 0);
1247 *p++ = OSSL_PARAM_construct_end();
1248
1249 ret = evp_pkey_ctx_get_params_strict(ctx, params);
1250 if (ret == -2) {
1251 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1252 } else if (ret > 0) {
1253 size_t tmp_id_len = params[0].return_size;
1254
1255 if (id != NULL)
1256 memcpy(id, tmp_id, tmp_id_len);
1257 if (id_len != NULL)
1258 *id_len = tmp_id_len;
1259 }
1260 return ret;
1261 }
1262
evp_pkey_ctx_get1_id_prov(EVP_PKEY_CTX * ctx,void * id)1263 int evp_pkey_ctx_get1_id_prov(EVP_PKEY_CTX *ctx, void *id)
1264 {
1265 return get1_id_data(ctx, id, NULL);
1266 }
1267
evp_pkey_ctx_get1_id_len_prov(EVP_PKEY_CTX * ctx,size_t * id_len)1268 int evp_pkey_ctx_get1_id_len_prov(EVP_PKEY_CTX *ctx, size_t *id_len)
1269 {
1270 return get1_id_data(ctx, NULL, id_len);
1271 }
1272
EVP_PKEY_CTX_get1_id(EVP_PKEY_CTX * ctx,void * id)1273 int EVP_PKEY_CTX_get1_id(EVP_PKEY_CTX *ctx, void *id)
1274 {
1275 return EVP_PKEY_CTX_ctrl(ctx, -1, -1, EVP_PKEY_CTRL_GET1_ID, 0, (void*)id);
1276 }
1277
EVP_PKEY_CTX_get1_id_len(EVP_PKEY_CTX * ctx,size_t * id_len)1278 int EVP_PKEY_CTX_get1_id_len(EVP_PKEY_CTX *ctx, size_t *id_len)
1279 {
1280 return EVP_PKEY_CTX_ctrl(ctx, -1, -1,
1281 EVP_PKEY_CTRL_GET1_ID_LEN, 0, (void*)id_len);
1282 }
1283
evp_pkey_ctx_ctrl_int(EVP_PKEY_CTX * ctx,int keytype,int optype,int cmd,int p1,void * p2)1284 static int evp_pkey_ctx_ctrl_int(EVP_PKEY_CTX *ctx, int keytype, int optype,
1285 int cmd, int p1, void *p2)
1286 {
1287 int ret = 0;
1288
1289 /*
1290 * If the method has a |digest_custom| function, we can relax the
1291 * operation type check, since this can be called before the operation
1292 * is initialized.
1293 */
1294 if (ctx->pmeth == NULL || ctx->pmeth->digest_custom == NULL) {
1295 if (ctx->operation == EVP_PKEY_OP_UNDEFINED) {
1296 ERR_raise(ERR_LIB_EVP, EVP_R_NO_OPERATION_SET);
1297 return -1;
1298 }
1299
1300 if ((optype != -1) && !(ctx->operation & optype)) {
1301 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION);
1302 return -1;
1303 }
1304 }
1305
1306 switch (evp_pkey_ctx_state(ctx)) {
1307 case EVP_PKEY_STATE_PROVIDER:
1308 return evp_pkey_ctx_ctrl_to_param(ctx, keytype, optype, cmd, p1, p2);
1309 case EVP_PKEY_STATE_UNKNOWN:
1310 case EVP_PKEY_STATE_LEGACY:
1311 if (ctx->pmeth == NULL || ctx->pmeth->ctrl == NULL) {
1312 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1313 return -2;
1314 }
1315 if ((keytype != -1) && (ctx->pmeth->pkey_id != keytype))
1316 return -1;
1317
1318 ret = ctx->pmeth->ctrl(ctx, cmd, p1, p2);
1319
1320 if (ret == -2)
1321 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1322 break;
1323 }
1324 return ret;
1325 }
1326
EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX * ctx,int keytype,int optype,int cmd,int p1,void * p2)1327 int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype,
1328 int cmd, int p1, void *p2)
1329 {
1330 int ret = 0;
1331
1332 if (ctx == NULL) {
1333 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1334 return -2;
1335 }
1336 /* If unsupported, we don't want that reported here */
1337 ERR_set_mark();
1338 ret = evp_pkey_ctx_store_cached_data(ctx, keytype, optype,
1339 cmd, NULL, p2, p1);
1340 if (ret == -2) {
1341 ERR_pop_to_mark();
1342 } else {
1343 ERR_clear_last_mark();
1344 /*
1345 * If there was an error, there was an error.
1346 * If the operation isn't initialized yet, we also return, as
1347 * the saved values will be used then anyway.
1348 */
1349 if (ret < 1 || ctx->operation == EVP_PKEY_OP_UNDEFINED)
1350 return ret;
1351 }
1352 return evp_pkey_ctx_ctrl_int(ctx, keytype, optype, cmd, p1, p2);
1353 }
1354
EVP_PKEY_CTX_ctrl_uint64(EVP_PKEY_CTX * ctx,int keytype,int optype,int cmd,uint64_t value)1355 int EVP_PKEY_CTX_ctrl_uint64(EVP_PKEY_CTX *ctx, int keytype, int optype,
1356 int cmd, uint64_t value)
1357 {
1358 return EVP_PKEY_CTX_ctrl(ctx, keytype, optype, cmd, 0, &value);
1359 }
1360
1361
evp_pkey_ctx_ctrl_str_int(EVP_PKEY_CTX * ctx,const char * name,const char * value)1362 static int evp_pkey_ctx_ctrl_str_int(EVP_PKEY_CTX *ctx,
1363 const char *name, const char *value)
1364 {
1365 int ret = 0;
1366
1367 if (ctx == NULL) {
1368 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1369 return -2;
1370 }
1371
1372 switch (evp_pkey_ctx_state(ctx)) {
1373 case EVP_PKEY_STATE_PROVIDER:
1374 return evp_pkey_ctx_ctrl_str_to_param(ctx, name, value);
1375 case EVP_PKEY_STATE_UNKNOWN:
1376 case EVP_PKEY_STATE_LEGACY:
1377 if (ctx == NULL || ctx->pmeth == NULL || ctx->pmeth->ctrl_str == NULL) {
1378 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1379 return -2;
1380 }
1381 if (strcmp(name, "digest") == 0)
1382 ret = EVP_PKEY_CTX_md(ctx,
1383 EVP_PKEY_OP_TYPE_SIG | EVP_PKEY_OP_TYPE_CRYPT,
1384 EVP_PKEY_CTRL_MD, value);
1385 else
1386 ret = ctx->pmeth->ctrl_str(ctx, name, value);
1387 break;
1388 }
1389
1390 return ret;
1391 }
1392
EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX * ctx,const char * name,const char * value)1393 int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX *ctx,
1394 const char *name, const char *value)
1395 {
1396 int ret = 0;
1397
1398 /* If unsupported, we don't want that reported here */
1399 ERR_set_mark();
1400 ret = evp_pkey_ctx_store_cached_data(ctx, -1, -1, -1,
1401 name, value, strlen(value) + 1);
1402 if (ret == -2) {
1403 ERR_pop_to_mark();
1404 } else {
1405 ERR_clear_last_mark();
1406 /*
1407 * If there was an error, there was an error.
1408 * If the operation isn't initialized yet, we also return, as
1409 * the saved values will be used then anyway.
1410 */
1411 if (ret < 1 || ctx->operation == EVP_PKEY_OP_UNDEFINED)
1412 return ret;
1413 }
1414
1415 return evp_pkey_ctx_ctrl_str_int(ctx, name, value);
1416 }
1417
decode_cmd(int cmd,const char * name)1418 static int decode_cmd(int cmd, const char *name)
1419 {
1420 if (cmd == -1) {
1421 /*
1422 * The consequence of the assertion not being true is that this
1423 * function will return -1, which will cause the calling functions
1424 * to signal that the command is unsupported... in non-debug mode.
1425 */
1426 if (ossl_assert(name != NULL))
1427 if (strcmp(name, "distid") == 0 || strcmp(name, "hexdistid") == 0)
1428 cmd = EVP_PKEY_CTRL_SET1_ID;
1429 }
1430
1431 return cmd;
1432 }
1433
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)1434 static int evp_pkey_ctx_store_cached_data(EVP_PKEY_CTX *ctx,
1435 int keytype, int optype,
1436 int cmd, const char *name,
1437 const void *data, size_t data_len)
1438 {
1439 /*
1440 * Check that it's one of the supported commands. The ctrl commands
1441 * number cases here must correspond to the cases in the bottom switch
1442 * in this function.
1443 */
1444 switch (cmd = decode_cmd(cmd, name)) {
1445 case EVP_PKEY_CTRL_SET1_ID:
1446 break;
1447 default:
1448 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1449 return -2;
1450 }
1451
1452 if (keytype != -1) {
1453 switch (evp_pkey_ctx_state(ctx)) {
1454 case EVP_PKEY_STATE_PROVIDER:
1455 if (ctx->keymgmt == NULL) {
1456 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1457 return -2;
1458 }
1459 if (!EVP_KEYMGMT_is_a(ctx->keymgmt,
1460 evp_pkey_type2name(keytype))) {
1461 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION);
1462 return -1;
1463 }
1464 break;
1465 case EVP_PKEY_STATE_UNKNOWN:
1466 case EVP_PKEY_STATE_LEGACY:
1467 if (ctx->pmeth == NULL) {
1468 ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
1469 return -2;
1470 }
1471 if (EVP_PKEY_type(ctx->pmeth->pkey_id) != EVP_PKEY_type(keytype)) {
1472 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION);
1473 return -1;
1474 }
1475 break;
1476 }
1477 }
1478 if (optype != -1 && (ctx->operation & optype) == 0) {
1479 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION);
1480 return -1;
1481 }
1482
1483 switch (cmd) {
1484 case EVP_PKEY_CTRL_SET1_ID:
1485 evp_pkey_ctx_free_cached_data(ctx, cmd, name);
1486 if (name != NULL) {
1487 ctx->cached_parameters.dist_id_name = OPENSSL_strdup(name);
1488 if (ctx->cached_parameters.dist_id_name == NULL) {
1489 ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
1490 return 0;
1491 }
1492 }
1493 if (data_len > 0) {
1494 ctx->cached_parameters.dist_id = OPENSSL_memdup(data, data_len);
1495 if (ctx->cached_parameters.dist_id == NULL) {
1496 ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
1497 return 0;
1498 }
1499 }
1500 ctx->cached_parameters.dist_id_set = 1;
1501 ctx->cached_parameters.dist_id_len = data_len;
1502 break;
1503 }
1504 return 1;
1505 }
1506
evp_pkey_ctx_free_cached_data(EVP_PKEY_CTX * ctx,int cmd,const char * name)1507 static void evp_pkey_ctx_free_cached_data(EVP_PKEY_CTX *ctx,
1508 int cmd, const char *name)
1509 {
1510 cmd = decode_cmd(cmd, name);
1511 switch (cmd) {
1512 case EVP_PKEY_CTRL_SET1_ID:
1513 OPENSSL_free(ctx->cached_parameters.dist_id);
1514 OPENSSL_free(ctx->cached_parameters.dist_id_name);
1515 ctx->cached_parameters.dist_id = NULL;
1516 ctx->cached_parameters.dist_id_name = NULL;
1517 break;
1518 }
1519 }
1520
evp_pkey_ctx_free_all_cached_data(EVP_PKEY_CTX * ctx)1521 static void evp_pkey_ctx_free_all_cached_data(EVP_PKEY_CTX *ctx)
1522 {
1523 evp_pkey_ctx_free_cached_data(ctx, EVP_PKEY_CTRL_SET1_ID, NULL);
1524 }
1525
evp_pkey_ctx_use_cached_data(EVP_PKEY_CTX * ctx)1526 int evp_pkey_ctx_use_cached_data(EVP_PKEY_CTX *ctx)
1527 {
1528 int ret = 1;
1529
1530 if (ret && ctx->cached_parameters.dist_id_set) {
1531 const char *name = ctx->cached_parameters.dist_id_name;
1532 const void *val = ctx->cached_parameters.dist_id;
1533 size_t len = ctx->cached_parameters.dist_id_len;
1534
1535 if (name != NULL)
1536 ret = evp_pkey_ctx_ctrl_str_int(ctx, name, val);
1537 else
1538 ret = evp_pkey_ctx_ctrl_int(ctx, -1, ctx->operation,
1539 EVP_PKEY_CTRL_SET1_ID,
1540 (int)len, (void *)val);
1541 }
1542
1543 return ret;
1544 }
1545
EVP_PKEY_CTX_get0_libctx(EVP_PKEY_CTX * ctx)1546 OSSL_LIB_CTX *EVP_PKEY_CTX_get0_libctx(EVP_PKEY_CTX *ctx)
1547 {
1548 return ctx->libctx;
1549 }
1550
EVP_PKEY_CTX_get0_propq(const EVP_PKEY_CTX * ctx)1551 const char *EVP_PKEY_CTX_get0_propq(const EVP_PKEY_CTX *ctx)
1552 {
1553 return ctx->propquery;
1554 }
1555
EVP_PKEY_CTX_get0_provider(const EVP_PKEY_CTX * ctx)1556 const OSSL_PROVIDER *EVP_PKEY_CTX_get0_provider(const EVP_PKEY_CTX *ctx)
1557 {
1558 if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
1559 if (ctx->op.sig.signature != NULL)
1560 return EVP_SIGNATURE_get0_provider(ctx->op.sig.signature);
1561 } else if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
1562 if (ctx->op.kex.exchange != NULL)
1563 return EVP_KEYEXCH_get0_provider(ctx->op.kex.exchange);
1564 } else if (EVP_PKEY_CTX_IS_KEM_OP(ctx)) {
1565 if (ctx->op.encap.kem != NULL)
1566 return EVP_KEM_get0_provider(ctx->op.encap.kem);
1567 } else if (EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)) {
1568 if (ctx->op.ciph.cipher != NULL)
1569 return EVP_ASYM_CIPHER_get0_provider(ctx->op.ciph.cipher);
1570 } else if (EVP_PKEY_CTX_IS_GEN_OP(ctx)) {
1571 if (ctx->keymgmt != NULL)
1572 return EVP_KEYMGMT_get0_provider(ctx->keymgmt);
1573 }
1574
1575 return NULL;
1576 }
1577
1578 /* Utility functions to send a string of hex string to a ctrl */
1579
EVP_PKEY_CTX_str2ctrl(EVP_PKEY_CTX * ctx,int cmd,const char * str)1580 int EVP_PKEY_CTX_str2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *str)
1581 {
1582 size_t len;
1583
1584 len = strlen(str);
1585 if (len > INT_MAX)
1586 return -1;
1587 return ctx->pmeth->ctrl(ctx, cmd, len, (void *)str);
1588 }
1589
EVP_PKEY_CTX_hex2ctrl(EVP_PKEY_CTX * ctx,int cmd,const char * hex)1590 int EVP_PKEY_CTX_hex2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *hex)
1591 {
1592 unsigned char *bin;
1593 long binlen;
1594 int rv = -1;
1595
1596 bin = OPENSSL_hexstr2buf(hex, &binlen);
1597 if (bin == NULL)
1598 return 0;
1599 if (binlen <= INT_MAX)
1600 rv = ctx->pmeth->ctrl(ctx, cmd, binlen, bin);
1601 OPENSSL_free(bin);
1602 return rv;
1603 }
1604
1605 /* Pass a message digest to a ctrl */
EVP_PKEY_CTX_md(EVP_PKEY_CTX * ctx,int optype,int cmd,const char * md)1606 int EVP_PKEY_CTX_md(EVP_PKEY_CTX *ctx, int optype, int cmd, const char *md)
1607 {
1608 const EVP_MD *m;
1609
1610 if (md == NULL || (m = EVP_get_digestbyname(md)) == NULL) {
1611 ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_DIGEST);
1612 return 0;
1613 }
1614 return EVP_PKEY_CTX_ctrl(ctx, -1, optype, cmd, 0, (void *)m);
1615 }
1616
EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX * ctx)1617 int EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX *ctx)
1618 {
1619 return ctx->operation;
1620 }
1621
EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX * ctx,int * dat,int datlen)1622 void EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX *ctx, int *dat, int datlen)
1623 {
1624 ctx->keygen_info = dat;
1625 ctx->keygen_info_count = datlen;
1626 }
1627
EVP_PKEY_CTX_set_data(EVP_PKEY_CTX * ctx,void * data)1628 void EVP_PKEY_CTX_set_data(EVP_PKEY_CTX *ctx, void *data)
1629 {
1630 ctx->data = data;
1631 }
1632
EVP_PKEY_CTX_get_data(const EVP_PKEY_CTX * ctx)1633 void *EVP_PKEY_CTX_get_data(const EVP_PKEY_CTX *ctx)
1634 {
1635 return ctx->data;
1636 }
1637
EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX * ctx)1638 EVP_PKEY *EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX *ctx)
1639 {
1640 return ctx->pkey;
1641 }
1642
EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX * ctx)1643 EVP_PKEY *EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX *ctx)
1644 {
1645 return ctx->peerkey;
1646 }
1647
EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX * ctx,void * data)1648 void EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX *ctx, void *data)
1649 {
1650 ctx->app_data = data;
1651 }
1652
EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX * ctx)1653 void *EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX *ctx)
1654 {
1655 return ctx->app_data;
1656 }
1657
EVP_PKEY_meth_set_init(EVP_PKEY_METHOD * pmeth,int (* init)(EVP_PKEY_CTX * ctx))1658 void EVP_PKEY_meth_set_init(EVP_PKEY_METHOD *pmeth,
1659 int (*init) (EVP_PKEY_CTX *ctx))
1660 {
1661 pmeth->init = init;
1662 }
1663
EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD * pmeth,int (* copy)(EVP_PKEY_CTX * dst,const EVP_PKEY_CTX * src))1664 void EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD *pmeth,
1665 int (*copy) (EVP_PKEY_CTX *dst,
1666 const EVP_PKEY_CTX *src))
1667 {
1668 pmeth->copy = copy;
1669 }
1670
EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD * pmeth,void (* cleanup)(EVP_PKEY_CTX * ctx))1671 void EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD *pmeth,
1672 void (*cleanup) (EVP_PKEY_CTX *ctx))
1673 {
1674 pmeth->cleanup = cleanup;
1675 }
1676
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))1677 void EVP_PKEY_meth_set_paramgen(EVP_PKEY_METHOD *pmeth,
1678 int (*paramgen_init) (EVP_PKEY_CTX *ctx),
1679 int (*paramgen) (EVP_PKEY_CTX *ctx,
1680 EVP_PKEY *pkey))
1681 {
1682 pmeth->paramgen_init = paramgen_init;
1683 pmeth->paramgen = paramgen;
1684 }
1685
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))1686 void EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD *pmeth,
1687 int (*keygen_init) (EVP_PKEY_CTX *ctx),
1688 int (*keygen) (EVP_PKEY_CTX *ctx,
1689 EVP_PKEY *pkey))
1690 {
1691 pmeth->keygen_init = keygen_init;
1692 pmeth->keygen = keygen;
1693 }
1694
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))1695 void EVP_PKEY_meth_set_sign(EVP_PKEY_METHOD *pmeth,
1696 int (*sign_init) (EVP_PKEY_CTX *ctx),
1697 int (*sign) (EVP_PKEY_CTX *ctx,
1698 unsigned char *sig, size_t *siglen,
1699 const unsigned char *tbs,
1700 size_t tbslen))
1701 {
1702 pmeth->sign_init = sign_init;
1703 pmeth->sign = sign;
1704 }
1705
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))1706 void EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD *pmeth,
1707 int (*verify_init) (EVP_PKEY_CTX *ctx),
1708 int (*verify) (EVP_PKEY_CTX *ctx,
1709 const unsigned char *sig,
1710 size_t siglen,
1711 const unsigned char *tbs,
1712 size_t tbslen))
1713 {
1714 pmeth->verify_init = verify_init;
1715 pmeth->verify = verify;
1716 }
1717
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))1718 void EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD *pmeth,
1719 int (*verify_recover_init) (EVP_PKEY_CTX
1720 *ctx),
1721 int (*verify_recover) (EVP_PKEY_CTX
1722 *ctx,
1723 unsigned char
1724 *sig,
1725 size_t *siglen,
1726 const unsigned
1727 char *tbs,
1728 size_t tbslen))
1729 {
1730 pmeth->verify_recover_init = verify_recover_init;
1731 pmeth->verify_recover = verify_recover;
1732 }
1733
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))1734 void EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD *pmeth,
1735 int (*signctx_init) (EVP_PKEY_CTX *ctx,
1736 EVP_MD_CTX *mctx),
1737 int (*signctx) (EVP_PKEY_CTX *ctx,
1738 unsigned char *sig,
1739 size_t *siglen,
1740 EVP_MD_CTX *mctx))
1741 {
1742 pmeth->signctx_init = signctx_init;
1743 pmeth->signctx = signctx;
1744 }
1745
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))1746 void EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD *pmeth,
1747 int (*verifyctx_init) (EVP_PKEY_CTX *ctx,
1748 EVP_MD_CTX *mctx),
1749 int (*verifyctx) (EVP_PKEY_CTX *ctx,
1750 const unsigned char *sig,
1751 int siglen,
1752 EVP_MD_CTX *mctx))
1753 {
1754 pmeth->verifyctx_init = verifyctx_init;
1755 pmeth->verifyctx = verifyctx;
1756 }
1757
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))1758 void EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD *pmeth,
1759 int (*encrypt_init) (EVP_PKEY_CTX *ctx),
1760 int (*encryptfn) (EVP_PKEY_CTX *ctx,
1761 unsigned char *out,
1762 size_t *outlen,
1763 const unsigned char *in,
1764 size_t inlen))
1765 {
1766 pmeth->encrypt_init = encrypt_init;
1767 pmeth->encrypt = encryptfn;
1768 }
1769
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))1770 void EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD *pmeth,
1771 int (*decrypt_init) (EVP_PKEY_CTX *ctx),
1772 int (*decrypt) (EVP_PKEY_CTX *ctx,
1773 unsigned char *out,
1774 size_t *outlen,
1775 const unsigned char *in,
1776 size_t inlen))
1777 {
1778 pmeth->decrypt_init = decrypt_init;
1779 pmeth->decrypt = decrypt;
1780 }
1781
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))1782 void EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD *pmeth,
1783 int (*derive_init) (EVP_PKEY_CTX *ctx),
1784 int (*derive) (EVP_PKEY_CTX *ctx,
1785 unsigned char *key,
1786 size_t *keylen))
1787 {
1788 pmeth->derive_init = derive_init;
1789 pmeth->derive = derive;
1790 }
1791
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))1792 void EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD *pmeth,
1793 int (*ctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
1794 void *p2),
1795 int (*ctrl_str) (EVP_PKEY_CTX *ctx,
1796 const char *type,
1797 const char *value))
1798 {
1799 pmeth->ctrl = ctrl;
1800 pmeth->ctrl_str = ctrl_str;
1801 }
1802
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))1803 void EVP_PKEY_meth_set_digestsign(EVP_PKEY_METHOD *pmeth,
1804 int (*digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen,
1805 const unsigned char *tbs, size_t tbslen))
1806 {
1807 pmeth->digestsign = digestsign;
1808 }
1809
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))1810 void EVP_PKEY_meth_set_digestverify(EVP_PKEY_METHOD *pmeth,
1811 int (*digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig,
1812 size_t siglen, const unsigned char *tbs,
1813 size_t tbslen))
1814 {
1815 pmeth->digestverify = digestverify;
1816 }
1817
EVP_PKEY_meth_set_check(EVP_PKEY_METHOD * pmeth,int (* check)(EVP_PKEY * pkey))1818 void EVP_PKEY_meth_set_check(EVP_PKEY_METHOD *pmeth,
1819 int (*check) (EVP_PKEY *pkey))
1820 {
1821 pmeth->check = check;
1822 }
1823
EVP_PKEY_meth_set_public_check(EVP_PKEY_METHOD * pmeth,int (* check)(EVP_PKEY * pkey))1824 void EVP_PKEY_meth_set_public_check(EVP_PKEY_METHOD *pmeth,
1825 int (*check) (EVP_PKEY *pkey))
1826 {
1827 pmeth->public_check = check;
1828 }
1829
EVP_PKEY_meth_set_param_check(EVP_PKEY_METHOD * pmeth,int (* check)(EVP_PKEY * pkey))1830 void EVP_PKEY_meth_set_param_check(EVP_PKEY_METHOD *pmeth,
1831 int (*check) (EVP_PKEY *pkey))
1832 {
1833 pmeth->param_check = check;
1834 }
1835
EVP_PKEY_meth_set_digest_custom(EVP_PKEY_METHOD * pmeth,int (* digest_custom)(EVP_PKEY_CTX * ctx,EVP_MD_CTX * mctx))1836 void EVP_PKEY_meth_set_digest_custom(EVP_PKEY_METHOD *pmeth,
1837 int (*digest_custom) (EVP_PKEY_CTX *ctx,
1838 EVP_MD_CTX *mctx))
1839 {
1840 pmeth->digest_custom = digest_custom;
1841 }
1842
EVP_PKEY_meth_get_init(const EVP_PKEY_METHOD * pmeth,int (** pinit)(EVP_PKEY_CTX * ctx))1843 void EVP_PKEY_meth_get_init(const EVP_PKEY_METHOD *pmeth,
1844 int (**pinit) (EVP_PKEY_CTX *ctx))
1845 {
1846 *pinit = pmeth->init;
1847 }
1848
EVP_PKEY_meth_get_copy(const EVP_PKEY_METHOD * pmeth,int (** pcopy)(EVP_PKEY_CTX * dst,const EVP_PKEY_CTX * src))1849 void EVP_PKEY_meth_get_copy(const EVP_PKEY_METHOD *pmeth,
1850 int (**pcopy) (EVP_PKEY_CTX *dst,
1851 const EVP_PKEY_CTX *src))
1852 {
1853 *pcopy = pmeth->copy;
1854 }
1855
EVP_PKEY_meth_get_cleanup(const EVP_PKEY_METHOD * pmeth,void (** pcleanup)(EVP_PKEY_CTX * ctx))1856 void EVP_PKEY_meth_get_cleanup(const EVP_PKEY_METHOD *pmeth,
1857 void (**pcleanup) (EVP_PKEY_CTX *ctx))
1858 {
1859 *pcleanup = pmeth->cleanup;
1860 }
1861
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))1862 void EVP_PKEY_meth_get_paramgen(const EVP_PKEY_METHOD *pmeth,
1863 int (**pparamgen_init) (EVP_PKEY_CTX *ctx),
1864 int (**pparamgen) (EVP_PKEY_CTX *ctx,
1865 EVP_PKEY *pkey))
1866 {
1867 if (pparamgen_init)
1868 *pparamgen_init = pmeth->paramgen_init;
1869 if (pparamgen)
1870 *pparamgen = pmeth->paramgen;
1871 }
1872
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))1873 void EVP_PKEY_meth_get_keygen(const EVP_PKEY_METHOD *pmeth,
1874 int (**pkeygen_init) (EVP_PKEY_CTX *ctx),
1875 int (**pkeygen) (EVP_PKEY_CTX *ctx,
1876 EVP_PKEY *pkey))
1877 {
1878 if (pkeygen_init)
1879 *pkeygen_init = pmeth->keygen_init;
1880 if (pkeygen)
1881 *pkeygen = pmeth->keygen;
1882 }
1883
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))1884 void EVP_PKEY_meth_get_sign(const EVP_PKEY_METHOD *pmeth,
1885 int (**psign_init) (EVP_PKEY_CTX *ctx),
1886 int (**psign) (EVP_PKEY_CTX *ctx,
1887 unsigned char *sig, size_t *siglen,
1888 const unsigned char *tbs,
1889 size_t tbslen))
1890 {
1891 if (psign_init)
1892 *psign_init = pmeth->sign_init;
1893 if (psign)
1894 *psign = pmeth->sign;
1895 }
1896
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))1897 void EVP_PKEY_meth_get_verify(const EVP_PKEY_METHOD *pmeth,
1898 int (**pverify_init) (EVP_PKEY_CTX *ctx),
1899 int (**pverify) (EVP_PKEY_CTX *ctx,
1900 const unsigned char *sig,
1901 size_t siglen,
1902 const unsigned char *tbs,
1903 size_t tbslen))
1904 {
1905 if (pverify_init)
1906 *pverify_init = pmeth->verify_init;
1907 if (pverify)
1908 *pverify = pmeth->verify;
1909 }
1910
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))1911 void EVP_PKEY_meth_get_verify_recover(const EVP_PKEY_METHOD *pmeth,
1912 int (**pverify_recover_init) (EVP_PKEY_CTX
1913 *ctx),
1914 int (**pverify_recover) (EVP_PKEY_CTX
1915 *ctx,
1916 unsigned char
1917 *sig,
1918 size_t *siglen,
1919 const unsigned
1920 char *tbs,
1921 size_t tbslen))
1922 {
1923 if (pverify_recover_init)
1924 *pverify_recover_init = pmeth->verify_recover_init;
1925 if (pverify_recover)
1926 *pverify_recover = pmeth->verify_recover;
1927 }
1928
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))1929 void EVP_PKEY_meth_get_signctx(const EVP_PKEY_METHOD *pmeth,
1930 int (**psignctx_init) (EVP_PKEY_CTX *ctx,
1931 EVP_MD_CTX *mctx),
1932 int (**psignctx) (EVP_PKEY_CTX *ctx,
1933 unsigned char *sig,
1934 size_t *siglen,
1935 EVP_MD_CTX *mctx))
1936 {
1937 if (psignctx_init)
1938 *psignctx_init = pmeth->signctx_init;
1939 if (psignctx)
1940 *psignctx = pmeth->signctx;
1941 }
1942
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))1943 void EVP_PKEY_meth_get_verifyctx(const EVP_PKEY_METHOD *pmeth,
1944 int (**pverifyctx_init) (EVP_PKEY_CTX *ctx,
1945 EVP_MD_CTX *mctx),
1946 int (**pverifyctx) (EVP_PKEY_CTX *ctx,
1947 const unsigned char *sig,
1948 int siglen,
1949 EVP_MD_CTX *mctx))
1950 {
1951 if (pverifyctx_init)
1952 *pverifyctx_init = pmeth->verifyctx_init;
1953 if (pverifyctx)
1954 *pverifyctx = pmeth->verifyctx;
1955 }
1956
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))1957 void EVP_PKEY_meth_get_encrypt(const EVP_PKEY_METHOD *pmeth,
1958 int (**pencrypt_init) (EVP_PKEY_CTX *ctx),
1959 int (**pencryptfn) (EVP_PKEY_CTX *ctx,
1960 unsigned char *out,
1961 size_t *outlen,
1962 const unsigned char *in,
1963 size_t inlen))
1964 {
1965 if (pencrypt_init)
1966 *pencrypt_init = pmeth->encrypt_init;
1967 if (pencryptfn)
1968 *pencryptfn = pmeth->encrypt;
1969 }
1970
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))1971 void EVP_PKEY_meth_get_decrypt(const EVP_PKEY_METHOD *pmeth,
1972 int (**pdecrypt_init) (EVP_PKEY_CTX *ctx),
1973 int (**pdecrypt) (EVP_PKEY_CTX *ctx,
1974 unsigned char *out,
1975 size_t *outlen,
1976 const unsigned char *in,
1977 size_t inlen))
1978 {
1979 if (pdecrypt_init)
1980 *pdecrypt_init = pmeth->decrypt_init;
1981 if (pdecrypt)
1982 *pdecrypt = pmeth->decrypt;
1983 }
1984
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))1985 void EVP_PKEY_meth_get_derive(const EVP_PKEY_METHOD *pmeth,
1986 int (**pderive_init) (EVP_PKEY_CTX *ctx),
1987 int (**pderive) (EVP_PKEY_CTX *ctx,
1988 unsigned char *key,
1989 size_t *keylen))
1990 {
1991 if (pderive_init)
1992 *pderive_init = pmeth->derive_init;
1993 if (pderive)
1994 *pderive = pmeth->derive;
1995 }
1996
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))1997 void EVP_PKEY_meth_get_ctrl(const EVP_PKEY_METHOD *pmeth,
1998 int (**pctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
1999 void *p2),
2000 int (**pctrl_str) (EVP_PKEY_CTX *ctx,
2001 const char *type,
2002 const char *value))
2003 {
2004 if (pctrl)
2005 *pctrl = pmeth->ctrl;
2006 if (pctrl_str)
2007 *pctrl_str = pmeth->ctrl_str;
2008 }
2009
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))2010 void EVP_PKEY_meth_get_digestsign(const EVP_PKEY_METHOD *pmeth,
2011 int (**digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen,
2012 const unsigned char *tbs, size_t tbslen))
2013 {
2014 if (digestsign)
2015 *digestsign = pmeth->digestsign;
2016 }
2017
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))2018 void EVP_PKEY_meth_get_digestverify(const EVP_PKEY_METHOD *pmeth,
2019 int (**digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig,
2020 size_t siglen, const unsigned char *tbs,
2021 size_t tbslen))
2022 {
2023 if (digestverify)
2024 *digestverify = pmeth->digestverify;
2025 }
2026
EVP_PKEY_meth_get_check(const EVP_PKEY_METHOD * pmeth,int (** pcheck)(EVP_PKEY * pkey))2027 void EVP_PKEY_meth_get_check(const EVP_PKEY_METHOD *pmeth,
2028 int (**pcheck) (EVP_PKEY *pkey))
2029 {
2030 if (pcheck != NULL)
2031 *pcheck = pmeth->check;
2032 }
2033
EVP_PKEY_meth_get_public_check(const EVP_PKEY_METHOD * pmeth,int (** pcheck)(EVP_PKEY * pkey))2034 void EVP_PKEY_meth_get_public_check(const EVP_PKEY_METHOD *pmeth,
2035 int (**pcheck) (EVP_PKEY *pkey))
2036 {
2037 if (pcheck != NULL)
2038 *pcheck = pmeth->public_check;
2039 }
2040
EVP_PKEY_meth_get_param_check(const EVP_PKEY_METHOD * pmeth,int (** pcheck)(EVP_PKEY * pkey))2041 void EVP_PKEY_meth_get_param_check(const EVP_PKEY_METHOD *pmeth,
2042 int (**pcheck) (EVP_PKEY *pkey))
2043 {
2044 if (pcheck != NULL)
2045 *pcheck = pmeth->param_check;
2046 }
2047
EVP_PKEY_meth_get_digest_custom(const EVP_PKEY_METHOD * pmeth,int (** pdigest_custom)(EVP_PKEY_CTX * ctx,EVP_MD_CTX * mctx))2048 void EVP_PKEY_meth_get_digest_custom(const EVP_PKEY_METHOD *pmeth,
2049 int (**pdigest_custom) (EVP_PKEY_CTX *ctx,
2050 EVP_MD_CTX *mctx))
2051 {
2052 if (pdigest_custom != NULL)
2053 *pdigest_custom = pmeth->digest_custom;
2054 }
2055
2056 #endif /* FIPS_MODULE */
2057