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Jan Glauber604973f2008-03-06 19:50:20 +08001/*
2 * Cryptographic API.
3 *
4 * s390 generic implementation of the SHA Secure Hash Algorithms.
5 *
6 * Copyright IBM Corp. 2007
7 * Author(s): Jan Glauber (jang@de.ibm.com)
8 *
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the Free
11 * Software Foundation; either version 2 of the License, or (at your option)
12 * any later version.
13 *
14 */
15#ifndef _CRYPTO_ARCH_S390_SHA_H
16#define _CRYPTO_ARCH_S390_SHA_H
17
18#include <linux/crypto.h>
19#include <crypto/sha.h>
20
21/* must be big enough for the largest SHA variant */
Jan Glauber291dc7c2008-03-06 19:52:00 +080022#define SHA_MAX_STATE_SIZE 16
23#define SHA_MAX_BLOCK_SIZE SHA512_BLOCK_SIZE
Jan Glauber604973f2008-03-06 19:50:20 +080024
25struct s390_sha_ctx {
26 u64 count; /* message length in bytes */
Jan Glauber291dc7c2008-03-06 19:52:00 +080027 u32 state[SHA_MAX_STATE_SIZE];
Jan Glauber604973f2008-03-06 19:50:20 +080028 u8 buf[2 * SHA_MAX_BLOCK_SIZE];
29 int func; /* KIMD function to use */
30};
31
Herbert Xu563f3462009-01-18 20:33:33 +110032struct shash_desc;
33
34int s390_sha_update(struct shash_desc *desc, const u8 *data, unsigned int len);
35int s390_sha_final(struct shash_desc *desc, u8 *out);
Jan Glauber604973f2008-03-06 19:50:20 +080036
37#endif