| 1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
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| 2 | /* |
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| 3 | * Cryptographic API. |
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| 4 | * |
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| 5 | * s390 generic implementation of the SHA Secure Hash Algorithms. |
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| 6 | * |
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| 7 | * Copyright IBM Corp. 2007 |
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| 8 | * Author(s): Jan Glauber (jang@de.ibm.com) |
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| 9 | */ |
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| 10 | #ifndef _CRYPTO_ARCH_S390_SHA_H |
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| 11 | #define _CRYPTO_ARCH_S390_SHA_H |
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| 12 | |
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| 13 | #include <linux/crypto.h> |
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| 14 | #include <crypto/sha1.h> |
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| 15 | #include <crypto/sha2.h> |
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| 16 | #include <crypto/sha3.h> |
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| 17 | |
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| 18 | /* must be big enough for the largest SHA variant */ |
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| 19 | #define SHA3_STATE_SIZE 200 |
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| 20 | #define CPACF_MAX_PARMBLOCK_SIZE SHA3_STATE_SIZE |
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| 21 | #define SHA_MAX_BLOCK_SIZE SHA3_224_BLOCK_SIZE |
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| 22 | |
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| 23 | struct s390_sha_ctx { |
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| 24 | u64 count; /* message length in bytes */ |
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| 25 | u32 state[CPACF_MAX_PARMBLOCK_SIZE / sizeof(u32)]; |
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| 26 | u8 buf[SHA_MAX_BLOCK_SIZE]; |
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| 27 | int func; /* KIMD function to use */ |
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| 28 | }; |
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| 29 | |
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| 30 | struct shash_desc; |
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| 31 | |
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| 32 | int s390_sha_update(struct shash_desc *desc, const u8 *data, unsigned int len); |
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| 33 | int s390_sha_final(struct shash_desc *desc, u8 *out); |
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| 34 | |
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| 35 | #endif |
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| 36 | |
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