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/* 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 <crypto/sha2.h>
#include <crypto/sha3.h>
#include <linux/types.h>
/* must be big enough for the largest SHA variant */
#define CPACF_MAX_PARMBLOCK_SIZE SHA3_STATE_SIZE
#define SHA_MAX_BLOCK_SIZE SHA3_224_BLOCK_SIZE
#define S390_SHA_CTX_SIZE sizeof(struct s390_sha_ctx)
struct s390_sha_ctx {
u64 count; /* message length in bytes */
union {
u32 state[CPACF_MAX_PARMBLOCK_SIZE / sizeof(u32)];
struct {
u64 state[SHA512_DIGEST_SIZE / sizeof(u64)];
u64 count_hi;
} sha512;
};
int func; /* KIMD function to use */
bool first_message_part;
};
struct shash_desc;
int s390_sha_update_blocks(struct shash_desc *desc, const u8 *data,
unsigned int len);
int s390_sha_finup(struct shash_desc *desc, const u8 *src, unsigned int len,
u8 *out);
#endif
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