1 /*

     2  * Common values for AES algorithms

     3  */

     4 

     5 #ifndef _CRYPTO_AES_H

     6 #define _CRYPTO_AES_H

     7 

     8 #include <linux/types.h>

     9 #include <linux/crypto.h>

    10 

    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

    17 #define AES_MAX_KEYLENGTH	(15 * 16)

    18 #define AES_MAX_KEYLENGTH_U32	(AES_MAX_KEYLENGTH / sizeof(u32))

    19 

    20 struct crypto_aes_ctx {

    21 	u32 key_length;

    22 	u32 key_enc[AES_MAX_KEYLENGTH_U32];

    23 	u32 key_dec[AES_MAX_KEYLENGTH_U32];

    24 };

    25 

    26 extern u32 crypto_ft_tab[4][256];

    27 extern u32 crypto_fl_tab[4][256];

    28 extern u32 crypto_it_tab[4][256];

    29 extern u32 crypto_il_tab[4][256];

    30 

    31 int crypto_aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,

    32 		unsigned int key_len);

    33 int crypto_aes_expand_key(struct crypto_aes_ctx *ctx, const u8 *in_key,

    34 		unsigned int key_len);

    35 #endif