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 36