root/include/crypto/aes.h

INCLUDED FROM

/*
 * Common values for AES algorithms
 */

#ifndef _CRYPTO_AES_H
#define _CRYPTO_AES_H

#include <linux/types.h>
#include <linux/crypto.h>

#define AES_MIN_KEY_SIZE        16
#define AES_MAX_KEY_SIZE        32
#define AES_KEYSIZE_128         16
#define AES_KEYSIZE_192         24
#define AES_KEYSIZE_256         32
#define AES_BLOCK_SIZE          16
#define AES_MAX_KEYLENGTH       (15 * 16)
#define AES_MAX_KEYLENGTH_U32   (AES_MAX_KEYLENGTH / sizeof(u32))

struct crypto_aes_ctx {
        u32 key_length;
        u32 key_enc[AES_MAX_KEYLENGTH_U32];
        u32 key_dec[AES_MAX_KEYLENGTH_U32];
};

extern u32 crypto_ft_tab[4][256];
extern u32 crypto_fl_tab[4][256];
extern u32 crypto_it_tab[4][256];
extern u32 crypto_il_tab[4][256];

int crypto_aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,
                unsigned int key_len);
int crypto_aes_expand_key(struct crypto_aes_ctx *ctx, const u8 *in_key,
                unsigned int key_len);
#endif