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747c8ce4 GBY |
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 | ||
8da02bf1 AB |
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 | ||
747c8ce4 | 31 | #endif |