| Kyle Swenson | 8d8f654 | 2021-03-15 11:02:55 -0600 | [diff] [blame^] | 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 (jang@de.ibm.com) |
| 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 */ |
| 22 | #define SHA_MAX_STATE_SIZE (SHA512_DIGEST_SIZE / 4) |
| 23 | #define SHA_MAX_BLOCK_SIZE SHA512_BLOCK_SIZE |
| 24 | |
| 25 | struct s390_sha_ctx { |
| 26 | u64 count; /* message length in bytes */ |
| 27 | u32 state[SHA_MAX_STATE_SIZE]; |
| 28 | u8 buf[2 * SHA_MAX_BLOCK_SIZE]; |
| 29 | int func; /* KIMD function to use */ |
| 30 | }; |
| 31 | |
| 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); |
| 36 | |
| 37 | #endif |