[linux.git] / arch / s390 / crypto / sha.h

/*
 * Cryptographic API.
 *
 * s390 generic implementation of the SHA Secure Hash Algorithms.
 *
 * Copyright IBM Corp. 2007
 * Author(s): Jan Glauber ([email protected])
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the Free
 * Software Foundation; either version 2 of the License, or (at your option)
 * any later version.
 *
 */
#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	16
#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
604973f1 JG	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 ([email protected])
	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 */
291dc7c0 JG	22	#define SHA_MAX_STATE_SIZE 16
291dc7c0 JG	23	#define SHA_MAX_BLOCK_SIZE SHA512_BLOCK_SIZE
604973f1 JG	24
	25	struct s390_sha_ctx {
	26	u64 count; /* message length in bytes */
291dc7c0	27	u32 state[SHA_MAX_STATE_SIZE];
604973f1 JG	28	u8 buf[2 * SHA_MAX_BLOCK_SIZE];
	29	int func; /* KIMD function to use */
	30	};
	31
563f346d HX	32	struct shash_desc;
	33
	34	int s390_sha_update(struct shash_desc desc, const u8 data, unsigned int len);
	35	int s390_sha_final(struct shash_desc desc, u8 out);
604973f1 JG	36
604973f1 JG	37	#endif