[mirror_ubuntu-bionic-kernel.git] / arch / s390 / crypto / sha.h

/* 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/sha.h>

/* must be big enough for the largest SHA variant */
#define SHA_MAX_STATE_SIZE	(SHA512_DIGEST_SIZE / 4)
#define SHA_MAX_BLOCK_SIZE      SHA512_BLOCK_SIZE

struct s390_sha_ctx {
	u64 count;              /* message length in bytes */
	u32 state[SHA_MAX_STATE_SIZE];
	u8 buf[2 * SHA_MAX_BLOCK_SIZE];
	int func;		/* KIMD function to use */
};

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
Commit	Line	Data
20a884f5	1	/* SPDX-License-Identifier: GPL-2.0+ */
604973f1 JG	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)
604973f1 JG	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 */
19b14e7e	17	#define SHA_MAX_STATE_SIZE (SHA512_DIGEST_SIZE / 4)
291dc7c0	18	#define SHA_MAX_BLOCK_SIZE SHA512_BLOCK_SIZE
604973f1 JG	19
	20	struct s390_sha_ctx {
	21	u64 count; /* message length in bytes */
291dc7c0	22	u32 state[SHA_MAX_STATE_SIZE];
604973f1 JG	23	u8 buf[2 * SHA_MAX_BLOCK_SIZE];
	24	int func; /* KIMD function to use */
	25	};
	26
563f346d HX	27	struct shash_desc;
	28
	29	int s390_sha_update(struct shash_desc desc, const u8 data, unsigned int len);
	30	int s390_sha_final(struct shash_desc desc, u8 out);
604973f1 JG	31
604973f1 JG	32	#endif