blob: be25f24e931f1f9d584c375c9814866e778599c9 [file] [log] [blame]
/*
* 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 ),
};