1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
|
/*
* New driver for /dev/crypto device (aka CryptoDev)
* Copyright (c) 2010 Katholieke Universiteit Leuven
*
* Author: Nikos Mavrogiannopoulos <nmav@gnutls.org>
*
* This file is part of linux cryptodev.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "tomcrypt.h"
/**
@file der_encode_sequence_multi.c
ASN.1 DER, encode a Subject Public Key structure --nmav
*/
#ifdef LTC_DER
/* AlgorithmIdentifier := SEQUENCE {
* algorithm OBJECT IDENTIFIER,
* parameters ANY DEFINED BY algorithm
* }
*
* SubjectPublicKeyInfo := SEQUENCE {
* algorithm AlgorithmIdentifier,
* subjectPublicKey BIT STRING
* }
*/
/**
Encode a SEQUENCE type using a VA list
@param out [out] Destination for data
@param outlen [in/out] Length of buffer and resulting length of output
@remark <...> is of the form <type, size, data> (int, unsigned long, void*)
@return CRYPT_OK on success
*/
int der_encode_subject_public_key_info(unsigned char *out, unsigned long *outlen,
unsigned int algorithm, void* public_key, unsigned long public_key_len,
unsigned long parameters_type, void* parameters, unsigned long parameters_len)
{
int err;
ltc_asn1_list alg_id[2];
oid_st oid;
LTC_ARGCHK(out != NULL);
LTC_ARGCHK(outlen != NULL);
err = pk_get_oid(algorithm, &oid);
if (err != CRYPT_OK) {
return err;
}
alg_id[0].data = oid.OID;
alg_id[0].size = oid.OIDlen;
alg_id[0].type = LTC_ASN1_OBJECT_IDENTIFIER;
alg_id[1].data = parameters;
alg_id[1].size = parameters_len;
alg_id[1].type = parameters_type;
return der_encode_sequence_multi(out, outlen,
LTC_ASN1_SEQUENCE, (unsigned long)sizeof(alg_id)/sizeof(alg_id[0]), alg_id,
LTC_ASN1_BIT_STRING, (unsigned long)(public_key_len*8), public_key,
LTC_ASN1_EOL, 0UL, NULL);
}
#endif
|
