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Greg Kroah-Hartman20a884f2017-11-24 15:00:34 +01001/* SPDX-License-Identifier: GPL-2.0+ */
Jan Glauber604973f2008-03-06 19:50:20 +08002/*
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)
Jan Glauber604973f2008-03-06 19:50:20 +08009 */
10#ifndef _CRYPTO_ARCH_S390_SHA_H
11#define _CRYPTO_ARCH_S390_SHA_H
12
13#include <linux/crypto.h>
Eric Biggersa24d22b2020-11-12 21:20:21 -080014#include <crypto/sha1.h>
15#include <crypto/sha2.h>
Joerg Schmidbauer3c2eb6b2019-08-14 14:56:54 +020016#include <crypto/sha3.h>
Jan Glauber604973f2008-03-06 19:50:20 +080017
18/* must be big enough for the largest SHA variant */
Joerg Schmidbauer3c2eb6b2019-08-14 14:56:54 +020019#define SHA3_STATE_SIZE 200
20#define CPACF_MAX_PARMBLOCK_SIZE SHA3_STATE_SIZE
21#define SHA_MAX_BLOCK_SIZE SHA3_224_BLOCK_SIZE
Jan Glauber604973f2008-03-06 19:50:20 +080022
23struct s390_sha_ctx {
Joerg Schmidbauer3c2eb6b2019-08-14 14:56:54 +020024 u64 count; /* message length in bytes */
25 u32 state[CPACF_MAX_PARMBLOCK_SIZE / sizeof(u32)];
26 u8 buf[SHA_MAX_BLOCK_SIZE];
Jan Glauber604973f2008-03-06 19:50:20 +080027 int func; /* KIMD function to use */
28};
29
Herbert Xu563f3462009-01-18 20:33:33 +110030struct shash_desc;
31
32int s390_sha_update(struct shash_desc *desc, const u8 *data, unsigned int len);
33int s390_sha_final(struct shash_desc *desc, u8 *out);
Jan Glauber604973f2008-03-06 19:50:20 +080034
35#endif