projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 89e12654 SS |
1 | /* |
| 2 | * Common values for AES algorithms | |
| 3 | */ | |
| 4 | ||
| 5 | #ifndef _CRYPTO_AES_H | |
| 6 | #define _CRYPTO_AES_H | |
| 7 | ||
| 96e82e45 SS |
8 | #include <linux/types.h> |
| 9 | #include <linux/crypto.h> | |
| 10 | ||
| 89e12654 SS |
11 | #define AES_MIN_KEY_SIZE 16 |
| 12 | #define AES_MAX_KEY_SIZE 32 | |
| 13 | #define AES_KEYSIZE_128 16 | |
| 14 | #define AES_KEYSIZE_192 24 | |
| 15 | #define AES_KEYSIZE_256 32 | |
| 16 | #define AES_BLOCK_SIZE 16 | |
| 5427663f SS |
17 | #define AES_MAX_KEYLENGTH (15 * 16) |
| 18 | #define AES_MAX_KEYLENGTH_U32 (AES_MAX_KEYLENGTH / sizeof(u32)) | |
| 89e12654 | 19 | |
| 109568e1 YH |
20 | /* |
| 21 | * Please ensure that the first two fields are 16-byte aligned | |
| 22 | * relative to the start of the structure, i.e., don't move them! | |
| 23 | */ | |
| 96e82e45 | 24 | struct crypto_aes_ctx { |
| 5427663f SS |
25 | u32 key_enc[AES_MAX_KEYLENGTH_U32]; |
| 26 | u32 key_dec[AES_MAX_KEYLENGTH_U32]; | |
| 109568e1 | 27 | u32 key_length; |
| 96e82e45 SS |
28 | }; |
| 29 | ||
| 0ee4a969 HX |
30 | extern const u32 crypto_ft_tab[4][256]; |
| 31 | extern const u32 crypto_fl_tab[4][256]; | |
| 32 | extern const u32 crypto_it_tab[4][256]; | |
| 33 | extern const u32 crypto_il_tab[4][256]; | |
| 96e82e45 SS |
34 | |
| 35 | int crypto_aes_set_key(struct crypto_tfm *tfm, const u8 *in_key, | |
| 36 | unsigned int key_len); | |
| 5427663f SS |
37 | int crypto_aes_expand_key(struct crypto_aes_ctx *ctx, const u8 *in_key, |
| 38 | unsigned int key_len); | |
| 89e12654 | 39 | #endif |