| xj | b04a402 | 2021-11-25 15:01:52 +0800 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
| 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) |
| 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 */ |
| 17 | #define SHA_MAX_STATE_SIZE (SHA512_DIGEST_SIZE / 4) |
| 18 | #define SHA_MAX_BLOCK_SIZE SHA512_BLOCK_SIZE |
| 19 | |
| 20 | struct s390_sha_ctx { |
| 21 | u64 count; /* message length in bytes */ |
| 22 | u32 state[SHA_MAX_STATE_SIZE]; |
| 23 | u8 buf[2 * SHA_MAX_BLOCK_SIZE]; |
| 24 | int func; /* KIMD function to use */ |
| 25 | }; |
| 26 | |
| 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); |
| 31 | |
| 32 | #endif |