/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Cryptographic API.
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*
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* s390 generic implementation of the SHA Secure Hash Algorithms.
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*
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* Copyright IBM Corp. 2007
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* Author(s): Jan Glauber (jang@de.ibm.com)
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*/
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#ifndef _CRYPTO_ARCH_S390_SHA_H
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#define _CRYPTO_ARCH_S390_SHA_H
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#include <linux/crypto.h>
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#include <crypto/sha.h>
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/* must be big enough for the largest SHA variant */
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#define SHA_MAX_STATE_SIZE (SHA512_DIGEST_SIZE / 4)
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#define SHA_MAX_BLOCK_SIZE SHA512_BLOCK_SIZE
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struct s390_sha_ctx {
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u64 count; /* message length in bytes */
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u32 state[SHA_MAX_STATE_SIZE];
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u8 buf[2 * SHA_MAX_BLOCK_SIZE];
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int func; /* KIMD function to use */
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};
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struct shash_desc;
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int s390_sha_update(struct shash_desc *desc, const u8 *data, unsigned int len);
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int s390_sha_final(struct shash_desc *desc, u8 *out);
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#endif
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