[video_subr] Use memmove() for overlapping memory copy
[ipxe.git] / src / crypto / sha512_224.c
1 /*
2 * Copyright (C) 2015 Michael Brown <mbrown@fensystems.co.uk>.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation; either version 2 of the
7 * License, or any later version.
8 *
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
17 * 02110-1301, USA.
18 *
19 * You can also choose to distribute this program under the terms of
20 * the Unmodified Binary Distribution Licence (as given in the file
21 * COPYING.UBDL), provided that you have satisfied its requirements.
22 */
23
24 FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
25
26 /** @file
27 *
28 * SHA-512/224 algorithm
29 *
30 */
31
32 #include <stdint.h>
33 #include <byteswap.h>
34 #include <ipxe/crypto.h>
35 #include <ipxe/asn1.h>
36 #include <ipxe/sha512.h>
37
38 /** SHA-512/224 initial digest values */
39 static const struct sha512_digest sha512_224_init_digest = {
40 .h = {
41 cpu_to_be64 ( 0x8c3d37c819544da2ULL ),
42 cpu_to_be64 ( 0x73e1996689dcd4d6ULL ),
43 cpu_to_be64 ( 0x1dfab7ae32ff9c82ULL ),
44 cpu_to_be64 ( 0x679dd514582f9fcfULL ),
45 cpu_to_be64 ( 0x0f6d2b697bd44da8ULL ),
46 cpu_to_be64 ( 0x77e36f7304c48942ULL ),
47 cpu_to_be64 ( 0x3f9d85a86a1d36c8ULL ),
48 cpu_to_be64 ( 0x1112e6ad91d692a1ULL ),
49 },
50 };
51
52 /**
53 * Initialise SHA-512/224 algorithm
54 *
55 * @v ctx SHA-512/224 context
56 */
57 static void sha512_224_init ( void *ctx ) {
58 struct sha512_context *context = ctx;
59
60 sha512_family_init ( context, &sha512_224_init_digest,
61 SHA512_224_DIGEST_SIZE );
62 }
63
64 /** SHA-512/224 algorithm */
65 struct digest_algorithm sha512_224_algorithm = {
66 .name = "sha512/224",
67 .ctxsize = sizeof ( struct sha512_context ),
68 .blocksize = sizeof ( union sha512_block ),
69 .digestsize = SHA512_224_DIGEST_SIZE,
70 .init = sha512_224_init,
71 .update = sha512_update,
72 .final = sha512_final,
73 };
74
75 /** "sha512_224" object identifier */
76 static uint8_t oid_sha512_224[] = { ASN1_OID_SHA512_224 };
77
78 /** "sha512_224" OID-identified algorithm */
79 struct asn1_algorithm oid_sha512_224_algorithm __asn1_algorithm = {
80 .name = "sha512/224",
81 .digest = &sha512_224_algorithm,
82 .oid = ASN1_OID_CURSOR ( oid_sha512_224 ),
83 };