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
|
/*
* Copyright (C) 2015 Michael Brown <mbrown@fensystems.co.uk>.
*
* 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 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.
*
* You can also choose to distribute this program under the terms of
* the Unmodified Binary Distribution Licence (as given in the file
* COPYING.UBDL), provided that you have satisfied its requirements.
*/
FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
/** @file
*
* SHA-224 algorithm
*
*/
#include <stdint.h>
#include <byteswap.h>
#include <ipxe/crypto.h>
#include <ipxe/asn1.h>
#include <ipxe/sha256.h>
/** SHA-224 initial digest values */
static const struct sha256_digest sha224_init_digest = {
.h = {
cpu_to_be32 ( 0xc1059ed8 ),
cpu_to_be32 ( 0x367cd507 ),
cpu_to_be32 ( 0x3070dd17 ),
cpu_to_be32 ( 0xf70e5939 ),
cpu_to_be32 ( 0xffc00b31 ),
cpu_to_be32 ( 0x68581511 ),
cpu_to_be32 ( 0x64f98fa7 ),
cpu_to_be32 ( 0xbefa4fa4 ),
},
};
/**
* Initialise SHA-224 algorithm
*
* @v ctx SHA-224 context
*/
static void sha224_init ( void *ctx ) {
struct sha256_context *context = ctx;
sha256_family_init ( context, &sha224_init_digest, SHA224_DIGEST_SIZE );
}
/** SHA-224 algorithm */
struct digest_algorithm sha224_algorithm = {
.name = "sha224",
.ctxsize = sizeof ( struct sha256_context ),
.blocksize = sizeof ( union sha256_block ),
.digestsize = SHA224_DIGEST_SIZE,
.init = sha224_init,
.update = sha256_update,
.final = sha256_final,
};
/** "sha224" object identifier */
static uint8_t oid_sha224[] = { ASN1_OID_SHA224 };
/** "sha224" OID-identified algorithm */
struct asn1_algorithm oid_sha224_algorithm __asn1_algorithm = {
.name = "sha224",
.digest = &sha224_algorithm,
.oid = ASN1_OID_CURSOR ( oid_sha224 ),
};
|
