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/* 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 */ 24struct crypto_aes_ctx { 25 u32 key_enc[AES_MAX_KEYLENGTH_U32]; 26 u32 key_dec[AES_MAX_KEYLENGTH_U32]; 27 u32 key_length; 28}; 29 30extern const u32 crypto_ft_tab[4][256]; 31extern const u32 crypto_fl_tab[4][256]; 32extern const u32 crypto_it_tab[4][256]; 33extern const u32 crypto_il_tab[4][256]; 34 35int crypto_aes_set_key(struct crypto_tfm *tfm, const u8 *in_key, 36 unsigned int key_len); 37int crypto_aes_expand_key(struct crypto_aes_ctx *ctx, const u8 *in_key, 38 unsigned int key_len); 39#endif 40