iPXE
sha224.c
Go to the documentation of this file.
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-224 algorithm
29  *
30  */
31 
32 #include <stdint.h>
33 #include <byteswap.h>
34 #include <ipxe/crypto.h>
35 #include <ipxe/sha256.h>
36 
37 /** SHA-224 initial digest values */
38 static const struct sha256_digest sha224_init_digest = {
39  .h = {
40  cpu_to_be32 ( 0xc1059ed8 ),
41  cpu_to_be32 ( 0x367cd507 ),
42  cpu_to_be32 ( 0x3070dd17 ),
43  cpu_to_be32 ( 0xf70e5939 ),
44  cpu_to_be32 ( 0xffc00b31 ),
45  cpu_to_be32 ( 0x68581511 ),
46  cpu_to_be32 ( 0x64f98fa7 ),
47  cpu_to_be32 ( 0xbefa4fa4 ),
48  },
49 };
50 
51 /**
52  * Initialise SHA-224 algorithm
53  *
54  * @v ctx SHA-224 context
55  */
56 static void sha224_init ( void *ctx ) {
57  struct sha256_context *context = ctx;
58 
60 }
61 
62 /** SHA-224 algorithm */
64  .name = "sha224",
65  .ctxsize = sizeof ( struct sha256_context ),
66  .blocksize = sizeof ( union sha256_block ),
68  .init = sha224_init,
69  .update = sha256_update,
70  .final = sha256_final,
71 };
static void sha224_init(void *ctx)
Initialise SHA-224 algorithm.
Definition: sha224.c:56
Cryptographic API.
struct golan_eq_context ctx
Definition: CIB_PRM.h:28
FILE_LICENCE(GPL2_OR_LATER_OR_UBDL)
uint32_t h[8]
Hash output.
Definition: sha256.h:21
void sha256_update(void *ctx, const void *data, size_t len)
Accumulate data with SHA-256 algorithm.
Definition: sha256.c:216
static const struct sha256_digest sha224_init_digest
SHA-224 initial digest values.
Definition: sha224.c:38
An SHA-256 data block.
Definition: sha256.h:25
#define SHA224_DIGEST_SIZE
SHA-224 digest size.
Definition: sha256.h:77
#define cpu_to_be32(value)
Definition: byteswap.h:110
const char * name
Algorithm name.
Definition: crypto.h:18
A message digest algorithm.
Definition: crypto.h:16
void sha256_family_init(struct sha256_context *context, const struct sha256_digest *init, size_t digestsize)
Initialise SHA-256 family algorithm.
Definition: sha256.c:92
struct digest_algorithm sha224_algorithm
SHA-224 algorithm.
Definition: sha224.c:63
uint32_t digestsize
Digest size (i.e.
Definition: pccrr.h:14
An SHA-256 context.
Definition: sha256.h:61
SHA-256 algorithm.
An SHA-256 digest.
Definition: sha256.h:19
void sha256_final(void *ctx, void *out)
Generate SHA-256 digest.
Definition: sha256.c:239