| xj | b04a402 | 2021-11-25 15:01:52 +0800 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | |
| 3 | /* |
| 4 | * Common values for the SM4 algorithm |
| 5 | * Copyright (C) 2018 ARM Limited or its affiliates. |
| 6 | */ |
| 7 | |
| 8 | #ifndef _CRYPTO_SM4_H |
| 9 | #define _CRYPTO_SM4_H |
| 10 | |
| 11 | #include <linux/types.h> |
| 12 | #include <linux/crypto.h> |
| 13 | |
| 14 | #define SM4_KEY_SIZE 16 |
| 15 | #define SM4_BLOCK_SIZE 16 |
| 16 | #define SM4_RKEY_WORDS 32 |
| 17 | |
| 18 | struct crypto_sm4_ctx { |
| 19 | u32 rkey_enc[SM4_RKEY_WORDS]; |
| 20 | u32 rkey_dec[SM4_RKEY_WORDS]; |
| 21 | }; |
| 22 | |
| 23 | int crypto_sm4_set_key(struct crypto_tfm *tfm, const u8 *in_key, |
| 24 | unsigned int key_len); |
| 25 | int crypto_sm4_expand_key(struct crypto_sm4_ctx *ctx, const u8 *in_key, |
| 26 | unsigned int key_len); |
| 27 | |
| 28 | void crypto_sm4_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in); |
| 29 | void crypto_sm4_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in); |
| 30 | |
| 31 | #endif |