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source: vbox/trunk/src/libs/openssl-1.1.1l/crypto/evp/p_lib.c@ 91772

Last change on this file since 91772 was 91772, checked in by vboxsync, 3 years ago

openssl-1.1.1l: Applied and adjusted our OpenSSL changes to 1.1.1l. bugref:10126
File size: 16.6 KB
Line 
1/*
2 * Copyright 1995-2019 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the OpenSSL license (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#include <stdio.h>
11#include "internal/cryptlib.h"
12#include "internal/refcount.h"
13#include <openssl/bn.h>
14#include <openssl/err.h>
15#include <openssl/objects.h>
16#include <openssl/evp.h>
17#include <openssl/x509.h>
18#include <openssl/rsa.h>
19#include <openssl/dsa.h>
20#include <openssl/dh.h>
21#include <openssl/cmac.h>
22#include <openssl/engine.h>
23
24#include "crypto/asn1.h"
25#include "crypto/evp.h"
26
27static void EVP_PKEY_free_it(EVP_PKEY *x);
28
29int EVP_PKEY_bits(const EVP_PKEY *pkey)
30{
31 if (pkey && pkey->ameth && pkey->ameth->pkey_bits)
32 return pkey->ameth->pkey_bits(pkey);
33 return 0;
34}
35
36int EVP_PKEY_security_bits(const EVP_PKEY *pkey)
37{
38 if (pkey == NULL)
39 return 0;
40 if (!pkey->ameth || !pkey->ameth->pkey_security_bits)
41 return -2;
42 return pkey->ameth->pkey_security_bits(pkey);
43}
44
45int EVP_PKEY_size(const EVP_PKEY *pkey)
46{
47 if (pkey && pkey->ameth && pkey->ameth->pkey_size)
48 return pkey->ameth->pkey_size(pkey);
49 return 0;
50}
51
52int EVP_PKEY_save_parameters(EVP_PKEY *pkey, int mode)
53{
54#ifndef OPENSSL_NO_DSA
55 if (pkey->type == EVP_PKEY_DSA) {
56 int ret = pkey->save_parameters;
57
58 if (mode >= 0)
59 pkey->save_parameters = mode;
60 return ret;
61 }
62#endif
63#ifndef OPENSSL_NO_EC
64 if (pkey->type == EVP_PKEY_EC) {
65 int ret = pkey->save_parameters;
66
67 if (mode >= 0)
68 pkey->save_parameters = mode;
69 return ret;
70 }
71#endif
72 return 0;
73}
74
75int EVP_PKEY_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from)
76{
77 if (to->type == EVP_PKEY_NONE) {
78 if (EVP_PKEY_set_type(to, from->type) == 0)
79 return 0;
80 } else if (to->type != from->type) {
81 EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS, EVP_R_DIFFERENT_KEY_TYPES);
82 goto err;
83 }
84
85 if (EVP_PKEY_missing_parameters(from)) {
86 EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS, EVP_R_MISSING_PARAMETERS);
87 goto err;
88 }
89
90 if (!EVP_PKEY_missing_parameters(to)) {
91 if (EVP_PKEY_cmp_parameters(to, from) == 1)
92 return 1;
93 EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS, EVP_R_DIFFERENT_PARAMETERS);
94 return 0;
95 }
96
97 if (from->ameth && from->ameth->param_copy)
98 return from->ameth->param_copy(to, from);
99 err:
100 return 0;
101}
102
103int EVP_PKEY_missing_parameters(const EVP_PKEY *pkey)
104{
105 if (pkey != NULL && pkey->ameth && pkey->ameth->param_missing)
106 return pkey->ameth->param_missing(pkey);
107 return 0;
108}
109
110int EVP_PKEY_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b)
111{
112 if (a->type != b->type)
113 return -1;
114 if (a->ameth && a->ameth->param_cmp)
115 return a->ameth->param_cmp(a, b);
116 return -2;
117}
118
119int EVP_PKEY_cmp(const EVP_PKEY *a, const EVP_PKEY *b)
120{
121 if (a->type != b->type)
122 return -1;
123
124 if (a->ameth) {
125 int ret;
126 /* Compare parameters if the algorithm has them */
127 if (a->ameth->param_cmp) {
128 ret = a->ameth->param_cmp(a, b);
129 if (ret <= 0)
130 return ret;
131 }
132
133 if (a->ameth->pub_cmp)
134 return a->ameth->pub_cmp(a, b);
135 }
136
137 return -2;
138}
139
140EVP_PKEY *EVP_PKEY_new(void)
141{
142 EVP_PKEY *ret = OPENSSL_zalloc(sizeof(*ret));
143
144 if (ret == NULL) {
145 EVPerr(EVP_F_EVP_PKEY_NEW, ERR_R_MALLOC_FAILURE);
146 return NULL;
147 }
148 ret->type = EVP_PKEY_NONE;
149 ret->save_type = EVP_PKEY_NONE;
150 ret->references = 1;
151 ret->save_parameters = 1;
152 ret->lock = CRYPTO_THREAD_lock_new();
153 if (ret->lock == NULL) {
154 EVPerr(EVP_F_EVP_PKEY_NEW, ERR_R_MALLOC_FAILURE);
155 OPENSSL_free(ret);
156 return NULL;
157 }
158 return ret;
159}
160
161int EVP_PKEY_up_ref(EVP_PKEY *pkey)
162{
163 int i;
164
165 if (CRYPTO_UP_REF(&pkey->references, &i, pkey->lock) <= 0)
166 return 0;
167
168 REF_PRINT_COUNT("EVP_PKEY", pkey);
169 REF_ASSERT_ISNT(i < 2);
170 return ((i > 1) ? 1 : 0);
171}
172
173/*
174 * Setup a public key ASN1 method and ENGINE from a NID or a string. If pkey
175 * is NULL just return 1 or 0 if the algorithm exists.
176 */
177
178static int pkey_set_type(EVP_PKEY *pkey, ENGINE *e, int type, const char *str,
179 int len)
180{
181 const EVP_PKEY_ASN1_METHOD *ameth;
182 ENGINE **eptr = (e == NULL) ? &e : NULL;
183
184 if (pkey) {
185 if (pkey->pkey.ptr)
186 EVP_PKEY_free_it(pkey);
187 /*
188 * If key type matches and a method exists then this lookup has
189 * succeeded once so just indicate success.
190 */
191 if ((type == pkey->save_type) && pkey->ameth)
192 return 1;
193#ifndef OPENSSL_NO_ENGINE
194 /* If we have ENGINEs release them */
195 ENGINE_finish(pkey->engine);
196 pkey->engine = NULL;
197 ENGINE_finish(pkey->pmeth_engine);
198 pkey->pmeth_engine = NULL;
199#endif
200 }
201 if (str)
202 ameth = EVP_PKEY_asn1_find_str(eptr, str, len);
203 else
204 ameth = EVP_PKEY_asn1_find(eptr, type);
205#ifndef OPENSSL_NO_ENGINE
206 if (pkey == NULL && eptr != NULL)
207 ENGINE_finish(e);
208#endif
209 if (ameth == NULL) {
210 EVPerr(EVP_F_PKEY_SET_TYPE, EVP_R_UNSUPPORTED_ALGORITHM);
211 return 0;
212 }
213 if (pkey) {
214 pkey->ameth = ameth;
215 pkey->engine = e;
216
217 pkey->type = pkey->ameth->pkey_id;
218 pkey->save_type = type;
219 }
220 return 1;
221}
222
223EVP_PKEY *EVP_PKEY_new_raw_private_key(int type, ENGINE *e,
224 const unsigned char *priv,
225 size_t len)
226{
227 EVP_PKEY *ret = EVP_PKEY_new();
228
229 if (ret == NULL
230 || !pkey_set_type(ret, e, type, NULL, -1)) {
231 /* EVPerr already called */
232 goto err;
233 }
234
235 if (ret->ameth->set_priv_key == NULL) {
236 EVPerr(EVP_F_EVP_PKEY_NEW_RAW_PRIVATE_KEY,
237 EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
238 goto err;
239 }
240
241 if (!ret->ameth->set_priv_key(ret, priv, len)) {
242 EVPerr(EVP_F_EVP_PKEY_NEW_RAW_PRIVATE_KEY, EVP_R_KEY_SETUP_FAILED);
243 goto err;
244 }
245
246 return ret;
247
248 err:
249 EVP_PKEY_free(ret);
250 return NULL;
251}
252
253EVP_PKEY *EVP_PKEY_new_raw_public_key(int type, ENGINE *e,
254 const unsigned char *pub,
255 size_t len)
256{
257 EVP_PKEY *ret = EVP_PKEY_new();
258
259 if (ret == NULL
260 || !pkey_set_type(ret, e, type, NULL, -1)) {
261 /* EVPerr already called */
262 goto err;
263 }
264
265 if (ret->ameth->set_pub_key == NULL) {
266 EVPerr(EVP_F_EVP_PKEY_NEW_RAW_PUBLIC_KEY,
267 EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
268 goto err;
269 }
270
271 if (!ret->ameth->set_pub_key(ret, pub, len)) {
272 EVPerr(EVP_F_EVP_PKEY_NEW_RAW_PUBLIC_KEY, EVP_R_KEY_SETUP_FAILED);
273 goto err;
274 }
275
276 return ret;
277
278 err:
279 EVP_PKEY_free(ret);
280 return NULL;
281}
282
283int EVP_PKEY_get_raw_private_key(const EVP_PKEY *pkey, unsigned char *priv,
284 size_t *len)
285{
286 if (pkey->ameth->get_priv_key == NULL) {
287 EVPerr(EVP_F_EVP_PKEY_GET_RAW_PRIVATE_KEY,
288 EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
289 return 0;
290 }
291
292 if (!pkey->ameth->get_priv_key(pkey, priv, len)) {
293 EVPerr(EVP_F_EVP_PKEY_GET_RAW_PRIVATE_KEY, EVP_R_GET_RAW_KEY_FAILED);
294 return 0;
295 }
296
297 return 1;
298}
299
300int EVP_PKEY_get_raw_public_key(const EVP_PKEY *pkey, unsigned char *pub,
301 size_t *len)
302{
303 if (pkey->ameth->get_pub_key == NULL) {
304 EVPerr(EVP_F_EVP_PKEY_GET_RAW_PUBLIC_KEY,
305 EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
306 return 0;
307 }
308
309 if (!pkey->ameth->get_pub_key(pkey, pub, len)) {
310 EVPerr(EVP_F_EVP_PKEY_GET_RAW_PUBLIC_KEY, EVP_R_GET_RAW_KEY_FAILED);
311 return 0;
312 }
313
314 return 1;
315}
316
317EVP_PKEY *EVP_PKEY_new_CMAC_key(ENGINE *e, const unsigned char *priv,
318 size_t len, const EVP_CIPHER *cipher)
319{
320#ifndef OPENSSL_NO_CMAC
321 EVP_PKEY *ret = EVP_PKEY_new();
322 CMAC_CTX *cmctx = CMAC_CTX_new();
323
324 if (ret == NULL
325 || cmctx == NULL
326 || !pkey_set_type(ret, e, EVP_PKEY_CMAC, NULL, -1)) {
327 /* EVPerr already called */
328 goto err;
329 }
330
331 if (!CMAC_Init(cmctx, priv, len, cipher, e)) {
332 EVPerr(EVP_F_EVP_PKEY_NEW_CMAC_KEY, EVP_R_KEY_SETUP_FAILED);
333 goto err;
334 }
335
336 ret->pkey.ptr = cmctx;
337 return ret;
338
339 err:
340 EVP_PKEY_free(ret);
341 CMAC_CTX_free(cmctx);
342 return NULL;
343#else
344 EVPerr(EVP_F_EVP_PKEY_NEW_CMAC_KEY,
345 EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
346 return NULL;
347#endif
348}
349
350int EVP_PKEY_set_type(EVP_PKEY *pkey, int type)
351{
352 return pkey_set_type(pkey, NULL, type, NULL, -1);
353}
354
355int EVP_PKEY_set_type_str(EVP_PKEY *pkey, const char *str, int len)
356{
357 return pkey_set_type(pkey, NULL, EVP_PKEY_NONE, str, len);
358}
359
360int EVP_PKEY_set_alias_type(EVP_PKEY *pkey, int type)
361{
362 if (pkey->type == type) {
363 return 1; /* it already is that type */
364 }
365
366 /*
367 * The application is requesting to alias this to a different pkey type,
368 * but not one that resolves to the base type.
369 */
370 if (EVP_PKEY_type(type) != EVP_PKEY_base_id(pkey)) {
371 EVPerr(EVP_F_EVP_PKEY_SET_ALIAS_TYPE, EVP_R_UNSUPPORTED_ALGORITHM);
372 return 0;
373 }
374
375 pkey->type = type;
376 return 1;
377}
378
379#ifndef OPENSSL_NO_ENGINE
380int EVP_PKEY_set1_engine(EVP_PKEY *pkey, ENGINE *e)
381{
382 if (e != NULL) {
383 if (!ENGINE_init(e)) {
384 EVPerr(EVP_F_EVP_PKEY_SET1_ENGINE, ERR_R_ENGINE_LIB);
385 return 0;
386 }
387 if (ENGINE_get_pkey_meth(e, pkey->type) == NULL) {
388 ENGINE_finish(e);
389 EVPerr(EVP_F_EVP_PKEY_SET1_ENGINE, EVP_R_UNSUPPORTED_ALGORITHM);
390 return 0;
391 }
392 }
393 ENGINE_finish(pkey->pmeth_engine);
394 pkey->pmeth_engine = e;
395 return 1;
396}
397
398ENGINE *EVP_PKEY_get0_engine(const EVP_PKEY *pkey)
399{
400 return pkey->engine;
401}
402#endif
403int EVP_PKEY_assign(EVP_PKEY *pkey, int type, void *key)
404{
405 if (pkey == NULL || !EVP_PKEY_set_type(pkey, type))
406 return 0;
407 pkey->pkey.ptr = key;
408 return (key != NULL);
409}
410
411void *EVP_PKEY_get0(const EVP_PKEY *pkey)
412{
413 return pkey->pkey.ptr;
414}
415
416const unsigned char *EVP_PKEY_get0_hmac(const EVP_PKEY *pkey, size_t *len)
417{
418 ASN1_OCTET_STRING *os = NULL;
419 if (pkey->type != EVP_PKEY_HMAC) {
420 EVPerr(EVP_F_EVP_PKEY_GET0_HMAC, EVP_R_EXPECTING_AN_HMAC_KEY);
421 return NULL;
422 }
423 os = EVP_PKEY_get0(pkey);
424 *len = os->length;
425 return os->data;
426}
427
428#ifndef OPENSSL_NO_POLY1305
429const unsigned char *EVP_PKEY_get0_poly1305(const EVP_PKEY *pkey, size_t *len)
430{
431 ASN1_OCTET_STRING *os = NULL;
432 if (pkey->type != EVP_PKEY_POLY1305) {
433 EVPerr(EVP_F_EVP_PKEY_GET0_POLY1305, EVP_R_EXPECTING_A_POLY1305_KEY);
434 return NULL;
435 }
436 os = EVP_PKEY_get0(pkey);
437 *len = os->length;
438 return os->data;
439}
440#endif
441
442#ifndef OPENSSL_NO_SIPHASH
443const unsigned char *EVP_PKEY_get0_siphash(const EVP_PKEY *pkey, size_t *len)
444{
445 ASN1_OCTET_STRING *os = NULL;
446
447 if (pkey->type != EVP_PKEY_SIPHASH) {
448 EVPerr(EVP_F_EVP_PKEY_GET0_SIPHASH, EVP_R_EXPECTING_A_SIPHASH_KEY);
449 return NULL;
450 }
451 os = EVP_PKEY_get0(pkey);
452 *len = os->length;
453 return os->data;
454}
455#endif
456
457#ifndef OPENSSL_NO_RSA
458int EVP_PKEY_set1_RSA(EVP_PKEY *pkey, RSA *key)
459{
460 int ret = EVP_PKEY_assign_RSA(pkey, key);
461 if (ret)
462 RSA_up_ref(key);
463 return ret;
464}
465
466RSA *EVP_PKEY_get0_RSA(EVP_PKEY *pkey)
467{
468 if (pkey->type != EVP_PKEY_RSA && pkey->type != EVP_PKEY_RSA_PSS) {
469 EVPerr(EVP_F_EVP_PKEY_GET0_RSA, EVP_R_EXPECTING_AN_RSA_KEY);
470 return NULL;
471 }
472 return pkey->pkey.rsa;
473}
474
475RSA *EVP_PKEY_get1_RSA(EVP_PKEY *pkey)
476{
477 RSA *ret = EVP_PKEY_get0_RSA(pkey);
478 if (ret != NULL)
479 RSA_up_ref(ret);
480 return ret;
481}
482#endif
483
484#ifndef OPENSSL_NO_DSA
485int EVP_PKEY_set1_DSA(EVP_PKEY *pkey, DSA *key)
486{
487 int ret = EVP_PKEY_assign_DSA(pkey, key);
488 if (ret)
489 DSA_up_ref(key);
490 return ret;
491}
492
493DSA *EVP_PKEY_get0_DSA(EVP_PKEY *pkey)
494{
495 if (pkey->type != EVP_PKEY_DSA) {
496 EVPerr(EVP_F_EVP_PKEY_GET0_DSA, EVP_R_EXPECTING_A_DSA_KEY);
497 return NULL;
498 }
499 return pkey->pkey.dsa;
500}
501
502DSA *EVP_PKEY_get1_DSA(EVP_PKEY *pkey)
503{
504 DSA *ret = EVP_PKEY_get0_DSA(pkey);
505 if (ret != NULL)
506 DSA_up_ref(ret);
507 return ret;
508}
509#endif
510
511#ifndef OPENSSL_NO_EC
512
513int EVP_PKEY_set1_EC_KEY(EVP_PKEY *pkey, EC_KEY *key)
514{
515 int ret = EVP_PKEY_assign_EC_KEY(pkey, key);
516 if (ret)
517 EC_KEY_up_ref(key);
518 return ret;
519}
520
521EC_KEY *EVP_PKEY_get0_EC_KEY(EVP_PKEY *pkey)
522{
523 if (pkey->type != EVP_PKEY_EC) {
524 EVPerr(EVP_F_EVP_PKEY_GET0_EC_KEY, EVP_R_EXPECTING_A_EC_KEY);
525 return NULL;
526 }
527 return pkey->pkey.ec;
528}
529
530EC_KEY *EVP_PKEY_get1_EC_KEY(EVP_PKEY *pkey)
531{
532 EC_KEY *ret = EVP_PKEY_get0_EC_KEY(pkey);
533 if (ret != NULL)
534 EC_KEY_up_ref(ret);
535 return ret;
536}
537#endif
538
539#ifndef OPENSSL_NO_DH
540
541int EVP_PKEY_set1_DH(EVP_PKEY *pkey, DH *key)
542{
543 int type = DH_get0_q(key) == NULL ? EVP_PKEY_DH : EVP_PKEY_DHX;
544 int ret = EVP_PKEY_assign(pkey, type, key);
545
546 if (ret)
547 DH_up_ref(key);
548 return ret;
549}
550
551DH *EVP_PKEY_get0_DH(EVP_PKEY *pkey)
552{
553 if (pkey->type != EVP_PKEY_DH && pkey->type != EVP_PKEY_DHX) {
554 EVPerr(EVP_F_EVP_PKEY_GET0_DH, EVP_R_EXPECTING_A_DH_KEY);
555 return NULL;
556 }
557 return pkey->pkey.dh;
558}
559
560DH *EVP_PKEY_get1_DH(EVP_PKEY *pkey)
561{
562 DH *ret = EVP_PKEY_get0_DH(pkey);
563 if (ret != NULL)
564 DH_up_ref(ret);
565 return ret;
566}
567#endif
568
569int EVP_PKEY_type(int type)
570{
571 int ret;
572 const EVP_PKEY_ASN1_METHOD *ameth;
573 ENGINE *e;
574 ameth = EVP_PKEY_asn1_find(&e, type);
575 if (ameth)
576 ret = ameth->pkey_id;
577 else
578 ret = NID_undef;
579#ifndef OPENSSL_NO_ENGINE
580 ENGINE_finish(e);
581#endif
582 return ret;
583}
584
585int EVP_PKEY_id(const EVP_PKEY *pkey)
586{
587 return pkey->type;
588}
589
590int EVP_PKEY_base_id(const EVP_PKEY *pkey)
591{
592 return EVP_PKEY_type(pkey->type);
593}
594
595void EVP_PKEY_free(EVP_PKEY *x)
596{
597 int i;
598
599 if (x == NULL)
600 return;
601
602 CRYPTO_DOWN_REF(&x->references, &i, x->lock);
603 REF_PRINT_COUNT("EVP_PKEY", x);
604 if (i > 0)
605 return;
606 REF_ASSERT_ISNT(i < 0);
607 EVP_PKEY_free_it(x);
608 CRYPTO_THREAD_lock_free(x->lock);
609 sk_X509_ATTRIBUTE_pop_free(x->attributes, X509_ATTRIBUTE_free);
610 OPENSSL_free(x);
611}
612
613static void EVP_PKEY_free_it(EVP_PKEY *x)
614{
615 /* internal function; x is never NULL */
616 if (x->ameth && x->ameth->pkey_free) {
617 x->ameth->pkey_free(x);
618 x->pkey.ptr = NULL;
619 }
620#ifndef OPENSSL_NO_ENGINE
621 ENGINE_finish(x->engine);
622 x->engine = NULL;
623 ENGINE_finish(x->pmeth_engine);
624 x->pmeth_engine = NULL;
625#endif
626}
627
628static int unsup_alg(BIO *out, const EVP_PKEY *pkey, int indent,
629 const char *kstr)
630{
631 BIO_indent(out, indent, 128);
632 BIO_printf(out, "%s algorithm \"%s\" unsupported\n",
633 kstr, OBJ_nid2ln(pkey->type));
634 return 1;
635}
636
637int EVP_PKEY_print_public(BIO *out, const EVP_PKEY *pkey,
638 int indent, ASN1_PCTX *pctx)
639{
640 if (pkey->ameth && pkey->ameth->pub_print)
641 return pkey->ameth->pub_print(out, pkey, indent, pctx);
642
643 return unsup_alg(out, pkey, indent, "Public Key");
644}
645
646int EVP_PKEY_print_private(BIO *out, const EVP_PKEY *pkey,
647 int indent, ASN1_PCTX *pctx)
648{
649 if (pkey->ameth && pkey->ameth->priv_print)
650 return pkey->ameth->priv_print(out, pkey, indent, pctx);
651
652 return unsup_alg(out, pkey, indent, "Private Key");
653}
654
655int EVP_PKEY_print_params(BIO *out, const EVP_PKEY *pkey,
656 int indent, ASN1_PCTX *pctx)
657{
658 if (pkey->ameth && pkey->ameth->param_print)
659 return pkey->ameth->param_print(out, pkey, indent, pctx);
660 return unsup_alg(out, pkey, indent, "Parameters");
661}
662
663static int evp_pkey_asn1_ctrl(EVP_PKEY *pkey, int op, int arg1, void *arg2)
664{
665 if (pkey->ameth == NULL || pkey->ameth->pkey_ctrl == NULL)
666 return -2;
667 return pkey->ameth->pkey_ctrl(pkey, op, arg1, arg2);
668}
669
670int EVP_PKEY_get_default_digest_nid(EVP_PKEY *pkey, int *pnid)
671{
672 return evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_DEFAULT_MD_NID, 0, pnid);
673}
674
675int EVP_PKEY_set1_tls_encodedpoint(EVP_PKEY *pkey,
676 const unsigned char *pt, size_t ptlen)
677{
678 if (ptlen > INT_MAX)
679 return 0;
680 if (evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_SET1_TLS_ENCPT, ptlen,
681 (void *)pt) <= 0)
682 return 0;
683 return 1;
684}
685
686size_t EVP_PKEY_get1_tls_encodedpoint(EVP_PKEY *pkey, unsigned char **ppt)
687{
688 int rv;
689 rv = evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_GET1_TLS_ENCPT, 0, ppt);
690 if (rv <= 0)
691 return 0;
692 return rv;
693}
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