84 lines
2.5 KiB
C
84 lines
2.5 KiB
C
/*
|
|
* 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-512/256 algorithm
|
|
*
|
|
*/
|
|
|
|
#include <stdint.h>
|
|
#include <byteswap.h>
|
|
#include <ipxe/crypto.h>
|
|
#include <ipxe/asn1.h>
|
|
#include <ipxe/sha512.h>
|
|
|
|
/** SHA-512/256 initial digest values */
|
|
static const struct sha512_digest sha512_256_init_digest = {
|
|
.h = {
|
|
cpu_to_be64 ( 0x22312194fc2bf72cULL ),
|
|
cpu_to_be64 ( 0x9f555fa3c84c64c2ULL ),
|
|
cpu_to_be64 ( 0x2393b86b6f53b151ULL ),
|
|
cpu_to_be64 ( 0x963877195940eabdULL ),
|
|
cpu_to_be64 ( 0x96283ee2a88effe3ULL ),
|
|
cpu_to_be64 ( 0xbe5e1e2553863992ULL ),
|
|
cpu_to_be64 ( 0x2b0199fc2c85b8aaULL ),
|
|
cpu_to_be64 ( 0x0eb72ddc81c52ca2ULL ),
|
|
},
|
|
};
|
|
|
|
/**
|
|
* Initialise SHA-512/256 algorithm
|
|
*
|
|
* @v ctx SHA-512/256 context
|
|
*/
|
|
static void sha512_256_init ( void *ctx ) {
|
|
struct sha512_context *context = ctx;
|
|
|
|
sha512_family_init ( context, &sha512_256_init_digest,
|
|
SHA512_256_DIGEST_SIZE );
|
|
}
|
|
|
|
/** SHA-512/256 algorithm */
|
|
struct digest_algorithm sha512_256_algorithm = {
|
|
.name = "sha512/256",
|
|
.ctxsize = sizeof ( struct sha512_context ),
|
|
.blocksize = sizeof ( union sha512_block ),
|
|
.digestsize = SHA512_256_DIGEST_SIZE,
|
|
.init = sha512_256_init,
|
|
.update = sha512_update,
|
|
.final = sha512_final,
|
|
};
|
|
|
|
/** "sha512_256" object identifier */
|
|
static uint8_t oid_sha512_256[] = { ASN1_OID_SHA512_256 };
|
|
|
|
/** "sha512_256" OID-identified algorithm */
|
|
struct asn1_algorithm oid_sha512_256_algorithm __asn1_algorithm = {
|
|
.name = "sha512/256",
|
|
.digest = &sha512_256_algorithm,
|
|
.oid = ASN1_OID_CURSOR ( oid_sha512_256 ),
|
|
};
|