Cregit: Linux 6.12: sha.h

Contributors: 5
Author	Tokens	Token Proportion	Commits	Commit Proportion
Jan Glauber	68	66.67%	3	33.33%
Joerg Schmidbauer	19	18.63%	2	22.22%
Herbert Xu	9	8.82%	1	11.11%
Eric Biggers	4	3.92%	1	11.11%
Greg Kroah-Hartman	2	1.96%	2	22.22%
Total	102		9

/* SPDX-License-Identifier: GPL-2.0+ */
/*
 * Cryptographic API.
 *
 * s390 generic implementation of the SHA Secure Hash Algorithms.
 *
 * Copyright IBM Corp. 2007
 * Author(s): Jan Glauber (jang@de.ibm.com)
 */
#ifndef _CRYPTO_ARCH_S390_SHA_H
#define _CRYPTO_ARCH_S390_SHA_H

#include <linux/crypto.h>
#include <crypto/sha1.h>
#include <crypto/sha2.h>
#include <crypto/sha3.h>

/* must be big enough for the largest SHA variant */
#define SHA3_STATE_SIZE			200
#define CPACF_MAX_PARMBLOCK_SIZE	SHA3_STATE_SIZE
#define SHA_MAX_BLOCK_SIZE		SHA3_224_BLOCK_SIZE

struct s390_sha_ctx {
	u64 count;		/* message length in bytes */
	u32 state[CPACF_MAX_PARMBLOCK_SIZE / sizeof(u32)];
	u8 buf[SHA_MAX_BLOCK_SIZE];
	int func;		/* KIMD function to use */
	int first_message_part;
};

struct shash_desc;

int s390_sha_update(struct shash_desc *desc, const u8 *data, unsigned int len);
int s390_sha_final(struct shash_desc *desc, u8 *out);

#endif