2 * Copyright 2006-2016 The OpenSSL Project Authors. All Rights Reserved.
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
11 #include "internal/cryptlib.h"
12 #include <openssl/x509.h>
13 #include <openssl/asn1.h>
15 #include <openssl/bn.h>
16 #include "internal/asn1_int.h"
17 #include "internal/evp_int.h"
18 #include <openssl/cms.h>
21 * i2d/d2i like DH parameter functions which use the appropriate routine for
22 * PKCS#3 DH or X9.42 DH.
25 static DH
*d2i_dhp(const EVP_PKEY
*pkey
, const unsigned char **pp
,
28 if (pkey
->ameth
== &dhx_asn1_meth
)
29 return d2i_DHxparams(NULL
, pp
, length
);
30 return d2i_DHparams(NULL
, pp
, length
);
33 static int i2d_dhp(const EVP_PKEY
*pkey
, const DH
*a
, unsigned char **pp
)
35 if (pkey
->ameth
== &dhx_asn1_meth
)
36 return i2d_DHxparams(a
, pp
);
37 return i2d_DHparams(a
, pp
);
40 static void int_dh_free(EVP_PKEY
*pkey
)
42 DH_free(pkey
->pkey
.dh
);
45 static int dh_pub_decode(EVP_PKEY
*pkey
, X509_PUBKEY
*pubkey
)
47 const unsigned char *p
, *pm
;
53 ASN1_INTEGER
*public_key
= NULL
;
57 if (!X509_PUBKEY_get0_param(NULL
, &p
, &pklen
, &palg
, pubkey
))
59 X509_ALGOR_get0(NULL
, &ptype
, &pval
, palg
);
61 if (ptype
!= V_ASN1_SEQUENCE
) {
62 DHerr(DH_F_DH_PUB_DECODE
, DH_R_PARAMETER_ENCODING_ERROR
);
70 if ((dh
= d2i_dhp(pkey
, &pm
, pmlen
)) == NULL
) {
71 DHerr(DH_F_DH_PUB_DECODE
, DH_R_DECODE_ERROR
);
75 if ((public_key
= d2i_ASN1_INTEGER(NULL
, &p
, pklen
)) == NULL
) {
76 DHerr(DH_F_DH_PUB_DECODE
, DH_R_DECODE_ERROR
);
80 /* We have parameters now set public key */
81 if ((dh
->pub_key
= ASN1_INTEGER_to_BN(public_key
, NULL
)) == NULL
) {
82 DHerr(DH_F_DH_PUB_DECODE
, DH_R_BN_DECODE_ERROR
);
86 ASN1_INTEGER_free(public_key
);
87 EVP_PKEY_assign(pkey
, pkey
->ameth
->pkey_id
, dh
);
91 ASN1_INTEGER_free(public_key
);
97 static int dh_pub_encode(X509_PUBKEY
*pk
, const EVP_PKEY
*pkey
)
101 unsigned char *penc
= NULL
;
104 ASN1_INTEGER
*pub_key
= NULL
;
108 str
= ASN1_STRING_new();
110 DHerr(DH_F_DH_PUB_ENCODE
, ERR_R_MALLOC_FAILURE
);
113 str
->length
= i2d_dhp(pkey
, dh
, &str
->data
);
114 if (str
->length
<= 0) {
115 DHerr(DH_F_DH_PUB_ENCODE
, ERR_R_MALLOC_FAILURE
);
118 ptype
= V_ASN1_SEQUENCE
;
120 pub_key
= BN_to_ASN1_INTEGER(dh
->pub_key
, NULL
);
124 penclen
= i2d_ASN1_INTEGER(pub_key
, &penc
);
126 ASN1_INTEGER_free(pub_key
);
129 DHerr(DH_F_DH_PUB_ENCODE
, ERR_R_MALLOC_FAILURE
);
133 if (X509_PUBKEY_set0_param(pk
, OBJ_nid2obj(pkey
->ameth
->pkey_id
),
134 ptype
, str
, penc
, penclen
))
139 ASN1_STRING_free(str
);
145 * PKCS#8 DH is defined in PKCS#11 of all places. It is similar to DH in that
146 * the AlgorithmIdentifier contains the parameters, the private key is
147 * explicitly included and the pubkey must be recalculated.
150 static int dh_priv_decode(EVP_PKEY
*pkey
, PKCS8_PRIV_KEY_INFO
*p8
)
152 const unsigned char *p
, *pm
;
158 ASN1_INTEGER
*privkey
= NULL
;
162 if (!PKCS8_pkey_get0(NULL
, &p
, &pklen
, &palg
, p8
))
165 X509_ALGOR_get0(NULL
, &ptype
, &pval
, palg
);
167 if (ptype
!= V_ASN1_SEQUENCE
)
169 if ((privkey
= d2i_ASN1_INTEGER(NULL
, &p
, pklen
)) == NULL
)
174 pmlen
= pstr
->length
;
175 if ((dh
= d2i_dhp(pkey
, &pm
, pmlen
)) == NULL
)
178 /* We have parameters now set private key */
179 if ((dh
->priv_key
= BN_secure_new()) == NULL
180 || !ASN1_INTEGER_to_BN(privkey
, dh
->priv_key
)) {
181 DHerr(DH_F_DH_PRIV_DECODE
, DH_R_BN_ERROR
);
184 /* Calculate public key */
185 if (!DH_generate_key(dh
))
188 EVP_PKEY_assign(pkey
, pkey
->ameth
->pkey_id
, dh
);
190 ASN1_STRING_clear_free(privkey
);
195 DHerr(DH_F_DH_PRIV_DECODE
, EVP_R_DECODE_ERROR
);
198 ASN1_STRING_clear_free(privkey
);
202 static int dh_priv_encode(PKCS8_PRIV_KEY_INFO
*p8
, const EVP_PKEY
*pkey
)
204 ASN1_STRING
*params
= NULL
;
205 ASN1_INTEGER
*prkey
= NULL
;
206 unsigned char *dp
= NULL
;
209 params
= ASN1_STRING_new();
211 if (params
== NULL
) {
212 DHerr(DH_F_DH_PRIV_ENCODE
, ERR_R_MALLOC_FAILURE
);
216 params
->length
= i2d_dhp(pkey
, pkey
->pkey
.dh
, ¶ms
->data
);
217 if (params
->length
<= 0) {
218 DHerr(DH_F_DH_PRIV_ENCODE
, ERR_R_MALLOC_FAILURE
);
221 params
->type
= V_ASN1_SEQUENCE
;
223 /* Get private key into integer */
224 prkey
= BN_to_ASN1_INTEGER(pkey
->pkey
.dh
->priv_key
, NULL
);
227 DHerr(DH_F_DH_PRIV_ENCODE
, DH_R_BN_ERROR
);
231 dplen
= i2d_ASN1_INTEGER(prkey
, &dp
);
233 ASN1_STRING_clear_free(prkey
);
236 if (!PKCS8_pkey_set0(p8
, OBJ_nid2obj(pkey
->ameth
->pkey_id
), 0,
237 V_ASN1_SEQUENCE
, params
, dp
, dplen
))
244 ASN1_STRING_free(params
);
245 ASN1_STRING_clear_free(prkey
);
249 static int dh_param_decode(EVP_PKEY
*pkey
,
250 const unsigned char **pder
, int derlen
)
254 if ((dh
= d2i_dhp(pkey
, pder
, derlen
)) == NULL
) {
255 DHerr(DH_F_DH_PARAM_DECODE
, ERR_R_DH_LIB
);
258 EVP_PKEY_assign(pkey
, pkey
->ameth
->pkey_id
, dh
);
262 static int dh_param_encode(const EVP_PKEY
*pkey
, unsigned char **pder
)
264 return i2d_dhp(pkey
, pkey
->pkey
.dh
, pder
);
267 static int do_dh_print(BIO
*bp
, const DH
*x
, int indent
, int ptype
)
269 int reason
= ERR_R_BUF_LIB
;
270 const char *ktype
= NULL
;
271 BIGNUM
*priv_key
, *pub_key
;
274 priv_key
= x
->priv_key
;
279 pub_key
= x
->pub_key
;
283 if (x
->p
== NULL
|| (ptype
== 2 && priv_key
== NULL
)
284 || (ptype
> 0 && pub_key
== NULL
)) {
285 reason
= ERR_R_PASSED_NULL_PARAMETER
;
290 ktype
= "DH Private-Key";
292 ktype
= "DH Public-Key";
294 ktype
= "DH Parameters";
296 BIO_indent(bp
, indent
, 128);
297 if (BIO_printf(bp
, "%s: (%d bit)\n", ktype
, BN_num_bits(x
->p
)) <= 0)
301 if (!ASN1_bn_print(bp
, "private-key:", priv_key
, NULL
, indent
))
303 if (!ASN1_bn_print(bp
, "public-key:", pub_key
, NULL
, indent
))
306 if (!ASN1_bn_print(bp
, "prime:", x
->p
, NULL
, indent
))
308 if (!ASN1_bn_print(bp
, "generator:", x
->g
, NULL
, indent
))
310 if (x
->q
&& !ASN1_bn_print(bp
, "subgroup order:", x
->q
, NULL
, indent
))
312 if (x
->j
&& !ASN1_bn_print(bp
, "subgroup factor:", x
->j
, NULL
, indent
))
316 BIO_indent(bp
, indent
, 128);
317 BIO_puts(bp
, "seed:");
318 for (i
= 0; i
< x
->seedlen
; i
++) {
320 if (BIO_puts(bp
, "\n") <= 0
321 || !BIO_indent(bp
, indent
+ 4, 128))
324 if (BIO_printf(bp
, "%02x%s", x
->seed
[i
],
325 ((i
+ 1) == x
->seedlen
) ? "" : ":") <= 0)
328 if (BIO_write(bp
, "\n", 1) <= 0)
331 if (x
->counter
&& !ASN1_bn_print(bp
, "counter:", x
->counter
, NULL
, indent
))
333 if (x
->length
!= 0) {
334 BIO_indent(bp
, indent
, 128);
335 if (BIO_printf(bp
, "recommended-private-length: %d bits\n",
336 (int)x
->length
) <= 0)
343 DHerr(DH_F_DO_DH_PRINT
, reason
);
347 static int int_dh_size(const EVP_PKEY
*pkey
)
349 return (DH_size(pkey
->pkey
.dh
));
352 static int dh_bits(const EVP_PKEY
*pkey
)
354 return BN_num_bits(pkey
->pkey
.dh
->p
);
357 static int dh_security_bits(const EVP_PKEY
*pkey
)
359 return DH_security_bits(pkey
->pkey
.dh
);
362 static int dh_cmp_parameters(const EVP_PKEY
*a
, const EVP_PKEY
*b
)
364 if (BN_cmp(a
->pkey
.dh
->p
, b
->pkey
.dh
->p
) ||
365 BN_cmp(a
->pkey
.dh
->g
, b
->pkey
.dh
->g
))
367 else if (a
->ameth
== &dhx_asn1_meth
) {
368 if (BN_cmp(a
->pkey
.dh
->q
, b
->pkey
.dh
->q
))
374 static int int_dh_bn_cpy(BIGNUM
**dst
, const BIGNUM
*src
)
388 static int int_dh_param_copy(DH
*to
, const DH
*from
, int is_x942
)
391 is_x942
= ! !from
->q
;
392 if (!int_dh_bn_cpy(&to
->p
, from
->p
))
394 if (!int_dh_bn_cpy(&to
->g
, from
->g
))
397 if (!int_dh_bn_cpy(&to
->q
, from
->q
))
399 if (!int_dh_bn_cpy(&to
->j
, from
->j
))
401 OPENSSL_free(to
->seed
);
405 to
->seed
= OPENSSL_memdup(from
->seed
, from
->seedlen
);
408 to
->seedlen
= from
->seedlen
;
411 to
->length
= from
->length
;
415 DH
*DHparams_dup(DH
*dh
)
421 if (!int_dh_param_copy(ret
, dh
, -1)) {
428 static int dh_copy_parameters(EVP_PKEY
*to
, const EVP_PKEY
*from
)
430 if (to
->pkey
.dh
== NULL
) {
431 to
->pkey
.dh
= DH_new();
432 if (to
->pkey
.dh
== NULL
)
435 return int_dh_param_copy(to
->pkey
.dh
, from
->pkey
.dh
,
436 from
->ameth
== &dhx_asn1_meth
);
439 static int dh_missing_parameters(const EVP_PKEY
*a
)
441 if (a
->pkey
.dh
== NULL
|| a
->pkey
.dh
->p
== NULL
|| a
->pkey
.dh
->g
== NULL
)
446 static int dh_pub_cmp(const EVP_PKEY
*a
, const EVP_PKEY
*b
)
448 if (dh_cmp_parameters(a
, b
) == 0)
450 if (BN_cmp(b
->pkey
.dh
->pub_key
, a
->pkey
.dh
->pub_key
) != 0)
456 static int dh_param_print(BIO
*bp
, const EVP_PKEY
*pkey
, int indent
,
459 return do_dh_print(bp
, pkey
->pkey
.dh
, indent
, 0);
462 static int dh_public_print(BIO
*bp
, const EVP_PKEY
*pkey
, int indent
,
465 return do_dh_print(bp
, pkey
->pkey
.dh
, indent
, 1);
468 static int dh_private_print(BIO
*bp
, const EVP_PKEY
*pkey
, int indent
,
471 return do_dh_print(bp
, pkey
->pkey
.dh
, indent
, 2);
474 int DHparams_print(BIO
*bp
, const DH
*x
)
476 return do_dh_print(bp
, x
, 4, 0);
479 #ifndef OPENSSL_NO_CMS
480 static int dh_cms_decrypt(CMS_RecipientInfo
*ri
);
481 static int dh_cms_encrypt(CMS_RecipientInfo
*ri
);
484 static int dh_pkey_ctrl(EVP_PKEY
*pkey
, int op
, long arg1
, void *arg2
)
487 #ifndef OPENSSL_NO_CMS
489 case ASN1_PKEY_CTRL_CMS_ENVELOPE
:
491 return dh_cms_decrypt(arg2
);
493 return dh_cms_encrypt(arg2
);
496 case ASN1_PKEY_CTRL_CMS_RI_TYPE
:
497 *(int *)arg2
= CMS_RECIPINFO_AGREE
;
506 const EVP_PKEY_ASN1_METHOD dh_asn1_meth
= {
512 "OpenSSL PKCS#3 DH method",
529 dh_missing_parameters
,
539 const EVP_PKEY_ASN1_METHOD dhx_asn1_meth
= {
545 "OpenSSL X9.42 DH method",
562 dh_missing_parameters
,
572 #ifndef OPENSSL_NO_CMS
574 static int dh_cms_set_peerkey(EVP_PKEY_CTX
*pctx
,
575 X509_ALGOR
*alg
, ASN1_BIT_STRING
*pubkey
)
580 ASN1_INTEGER
*public_key
= NULL
;
582 EVP_PKEY
*pkpeer
= NULL
, *pk
= NULL
;
584 const unsigned char *p
;
587 X509_ALGOR_get0(&aoid
, &atype
, &aval
, alg
);
588 if (OBJ_obj2nid(aoid
) != NID_dhpublicnumber
)
590 /* Only absent parameters allowed in RFC XXXX */
591 if (atype
!= V_ASN1_UNDEF
&& atype
== V_ASN1_NULL
)
594 pk
= EVP_PKEY_CTX_get0_pkey(pctx
);
597 if (pk
->type
!= EVP_PKEY_DHX
)
599 /* Get parameters from parent key */
600 dhpeer
= DHparams_dup(pk
->pkey
.dh
);
601 /* We have parameters now set public key */
602 plen
= ASN1_STRING_length(pubkey
);
603 p
= ASN1_STRING_data(pubkey
);
607 if ((public_key
= d2i_ASN1_INTEGER(NULL
, &p
, plen
)) == NULL
) {
608 DHerr(DH_F_DH_CMS_SET_PEERKEY
, DH_R_DECODE_ERROR
);
612 /* We have parameters now set public key */
613 if ((dhpeer
->pub_key
= ASN1_INTEGER_to_BN(public_key
, NULL
)) == NULL
) {
614 DHerr(DH_F_DH_CMS_SET_PEERKEY
, DH_R_BN_DECODE_ERROR
);
618 pkpeer
= EVP_PKEY_new();
621 EVP_PKEY_assign(pkpeer
, pk
->ameth
->pkey_id
, dhpeer
);
623 if (EVP_PKEY_derive_set_peer(pctx
, pkpeer
) > 0)
626 ASN1_INTEGER_free(public_key
);
627 EVP_PKEY_free(pkpeer
);
632 static int dh_cms_set_shared_info(EVP_PKEY_CTX
*pctx
, CMS_RecipientInfo
*ri
)
636 X509_ALGOR
*alg
, *kekalg
= NULL
;
637 ASN1_OCTET_STRING
*ukm
;
638 const unsigned char *p
;
639 unsigned char *dukm
= NULL
;
642 const EVP_CIPHER
*kekcipher
;
643 EVP_CIPHER_CTX
*kekctx
;
645 if (!CMS_RecipientInfo_kari_get0_alg(ri
, &alg
, &ukm
))
649 * For DH we only have one OID permissible. If ever any more get defined
650 * we will need something cleverer.
652 if (OBJ_obj2nid(alg
->algorithm
) != NID_id_smime_alg_ESDH
) {
653 DHerr(DH_F_DH_CMS_SET_SHARED_INFO
, DH_R_KDF_PARAMETER_ERROR
);
657 if (EVP_PKEY_CTX_set_dh_kdf_type(pctx
, EVP_PKEY_DH_KDF_X9_42
) <= 0)
660 if (EVP_PKEY_CTX_set_dh_kdf_md(pctx
, EVP_sha1()) <= 0)
663 if (alg
->parameter
->type
!= V_ASN1_SEQUENCE
)
666 p
= alg
->parameter
->value
.sequence
->data
;
667 plen
= alg
->parameter
->value
.sequence
->length
;
668 kekalg
= d2i_X509_ALGOR(NULL
, &p
, plen
);
671 kekctx
= CMS_RecipientInfo_kari_get0_ctx(ri
);
674 kekcipher
= EVP_get_cipherbyobj(kekalg
->algorithm
);
675 if (!kekcipher
|| EVP_CIPHER_mode(kekcipher
) != EVP_CIPH_WRAP_MODE
)
677 if (!EVP_EncryptInit_ex(kekctx
, kekcipher
, NULL
, NULL
, NULL
))
679 if (EVP_CIPHER_asn1_to_param(kekctx
, kekalg
->parameter
) <= 0)
682 keylen
= EVP_CIPHER_CTX_key_length(kekctx
);
683 if (EVP_PKEY_CTX_set_dh_kdf_outlen(pctx
, keylen
) <= 0)
685 /* Use OBJ_nid2obj to ensure we use built in OID that isn't freed */
686 if (EVP_PKEY_CTX_set0_dh_kdf_oid(pctx
,
687 OBJ_nid2obj(EVP_CIPHER_type(kekcipher
)))
692 dukmlen
= ASN1_STRING_length(ukm
);
693 dukm
= OPENSSL_memdup(ASN1_STRING_data(ukm
), dukmlen
);
698 if (EVP_PKEY_CTX_set0_dh_kdf_ukm(pctx
, dukm
, dukmlen
) <= 0)
704 X509_ALGOR_free(kekalg
);
709 static int dh_cms_decrypt(CMS_RecipientInfo
*ri
)
712 pctx
= CMS_RecipientInfo_get0_pkey_ctx(ri
);
715 /* See if we need to set peer key */
716 if (!EVP_PKEY_CTX_get0_peerkey(pctx
)) {
718 ASN1_BIT_STRING
*pubkey
;
719 if (!CMS_RecipientInfo_kari_get0_orig_id(ri
, &alg
, &pubkey
,
724 if (!dh_cms_set_peerkey(pctx
, alg
, pubkey
)) {
725 DHerr(DH_F_DH_CMS_DECRYPT
, DH_R_PEER_KEY_ERROR
);
729 /* Set DH derivation parameters and initialise unwrap context */
730 if (!dh_cms_set_shared_info(pctx
, ri
)) {
731 DHerr(DH_F_DH_CMS_DECRYPT
, DH_R_SHARED_INFO_ERROR
);
737 static int dh_cms_encrypt(CMS_RecipientInfo
*ri
)
743 X509_ALGOR
*talg
, *wrap_alg
= NULL
;
745 ASN1_BIT_STRING
*pubkey
;
746 ASN1_STRING
*wrap_str
;
747 ASN1_OCTET_STRING
*ukm
;
748 unsigned char *penc
= NULL
, *dukm
= NULL
;
752 int kdf_type
, wrap_nid
;
753 const EVP_MD
*kdf_md
;
754 pctx
= CMS_RecipientInfo_get0_pkey_ctx(ri
);
757 /* Get ephemeral key */
758 pkey
= EVP_PKEY_CTX_get0_pkey(pctx
);
759 if (!CMS_RecipientInfo_kari_get0_orig_id(ri
, &talg
, &pubkey
,
762 X509_ALGOR_get0(&aoid
, NULL
, NULL
, talg
);
763 /* Is everything uninitialised? */
764 if (aoid
== OBJ_nid2obj(NID_undef
)) {
765 ASN1_INTEGER
*pubk
= BN_to_ASN1_INTEGER(pkey
->pkey
.dh
->pub_key
, NULL
);
770 penclen
= i2d_ASN1_INTEGER(pubk
, &penc
);
771 ASN1_INTEGER_free(pubk
);
774 ASN1_STRING_set0(pubkey
, penc
, penclen
);
775 pubkey
->flags
&= ~(ASN1_STRING_FLAG_BITS_LEFT
| 0x07);
776 pubkey
->flags
|= ASN1_STRING_FLAG_BITS_LEFT
;
779 X509_ALGOR_set0(talg
, OBJ_nid2obj(NID_dhpublicnumber
),
783 /* See if custom parameters set */
784 kdf_type
= EVP_PKEY_CTX_get_dh_kdf_type(pctx
);
787 if (!EVP_PKEY_CTX_get_dh_kdf_md(pctx
, &kdf_md
))
790 if (kdf_type
== EVP_PKEY_DH_KDF_NONE
) {
791 kdf_type
= EVP_PKEY_DH_KDF_X9_42
;
792 if (EVP_PKEY_CTX_set_dh_kdf_type(pctx
, kdf_type
) <= 0)
794 } else if (kdf_type
!= EVP_PKEY_DH_KDF_X9_42
)
797 if (kdf_md
== NULL
) {
798 /* Only SHA1 supported */
800 if (EVP_PKEY_CTX_set_dh_kdf_md(pctx
, kdf_md
) <= 0)
802 } else if (EVP_MD_type(kdf_md
) != NID_sha1
)
803 /* Unsupported digest */
806 if (!CMS_RecipientInfo_kari_get0_alg(ri
, &talg
, &ukm
))
810 ctx
= CMS_RecipientInfo_kari_get0_ctx(ri
);
811 wrap_nid
= EVP_CIPHER_CTX_type(ctx
);
812 if (EVP_PKEY_CTX_set0_dh_kdf_oid(pctx
, OBJ_nid2obj(wrap_nid
)) <= 0)
814 keylen
= EVP_CIPHER_CTX_key_length(ctx
);
816 /* Package wrap algorithm in an AlgorithmIdentifier */
818 wrap_alg
= X509_ALGOR_new();
819 if (wrap_alg
== NULL
)
821 wrap_alg
->algorithm
= OBJ_nid2obj(wrap_nid
);
822 wrap_alg
->parameter
= ASN1_TYPE_new();
823 if (wrap_alg
->parameter
== NULL
)
825 if (EVP_CIPHER_param_to_asn1(ctx
, wrap_alg
->parameter
) <= 0)
827 if (ASN1_TYPE_get(wrap_alg
->parameter
) == NID_undef
) {
828 ASN1_TYPE_free(wrap_alg
->parameter
);
829 wrap_alg
->parameter
= NULL
;
832 if (EVP_PKEY_CTX_set_dh_kdf_outlen(pctx
, keylen
) <= 0)
836 dukmlen
= ASN1_STRING_length(ukm
);
837 dukm
= OPENSSL_memdup(ASN1_STRING_data(ukm
), dukmlen
);
842 if (EVP_PKEY_CTX_set0_dh_kdf_ukm(pctx
, dukm
, dukmlen
) <= 0)
847 * Now need to wrap encoding of wrap AlgorithmIdentifier into parameter
848 * of another AlgorithmIdentifier.
851 penclen
= i2d_X509_ALGOR(wrap_alg
, &penc
);
852 if (!penc
|| !penclen
)
854 wrap_str
= ASN1_STRING_new();
855 if (wrap_str
== NULL
)
857 ASN1_STRING_set0(wrap_str
, penc
, penclen
);
859 X509_ALGOR_set0(talg
, OBJ_nid2obj(NID_id_smime_alg_ESDH
),
860 V_ASN1_SEQUENCE
, wrap_str
);
866 X509_ALGOR_free(wrap_alg
);