2 * Copyright (C) 2014 Red Hat Inc.
6 * This source code is licensed under the GNU General Public License,
7 * Version 2. See the file COPYING for more details.
13 #include <linux/types.h>
14 #include <crypto/sha.h>
17 * Stand-alone implementation of the SHA256 algorithm. It is designed to
18 * have as little dependencies as possible so it can be used in the
19 * kexec_file purgatory. In other cases you should use the implementation in
22 * For details see lib/sha256.c
25 extern int sha256_init(struct sha256_state *sctx);
26 extern int sha256_update(struct sha256_state *sctx, const u8 *input,
28 extern int sha256_final(struct sha256_state *sctx, u8 *hash);