1/*
 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 */
22#define SHA_MAX_STATE_SIZE	16
23#define SHA_MAX_BLOCK_SIZE      SHA512_BLOCK_SIZE
24
25struct s390_sha_ctx {
26	u64 count;              /* message length in bytes */
27	u32 state[SHA_MAX_STATE_SIZE];
28	u8 buf[2 * SHA_MAX_BLOCK_SIZE];
29	int func;		/* KIMD function to use */
30};
31
32struct 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);
36
37#endif

 1/* SPDX-License-Identifier: GPL-2.0+ */
 2/*
 3 * Cryptographic API.
 4 *
 5 * s390 generic implementation of the SHA Secure Hash Algorithms.
 6 *
 7 * Copyright IBM Corp. 2007
 8 * Author(s): Jan Glauber (jang@de.ibm.com)
 
 
 
 
 
 
 9 */
10#ifndef _CRYPTO_ARCH_S390_SHA_H
11#define _CRYPTO_ARCH_S390_SHA_H
12
13#include <linux/crypto.h>
14#include <crypto/sha.h>
15
16/* must be big enough for the largest SHA variant */
17#define SHA_MAX_STATE_SIZE	(SHA512_DIGEST_SIZE / 4)
18#define SHA_MAX_BLOCK_SIZE      SHA512_BLOCK_SIZE
19
20struct s390_sha_ctx {
21	u64 count;              /* message length in bytes */
22	u32 state[SHA_MAX_STATE_SIZE];
23	u8 buf[2 * SHA_MAX_BLOCK_SIZE];
24	int func;		/* KIMD function to use */
25};
26
27struct shash_desc;
28
29int s390_sha_update(struct shash_desc *desc, const u8 *data, unsigned int len);
30int s390_sha_final(struct shash_desc *desc, u8 *out);
31
32#endif