[linux-2.6-block.git] / include / crypto / aes.h

/*
 * 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))

/*
 * Please ensure that the first two fields are 16-byte aligned
 * relative to the start of the structure, i.e., don't move them!
 */
struct crypto_aes_ctx {
	u32 key_enc[AES_MAX_KEYLENGTH_U32];
	u32 key_dec[AES_MAX_KEYLENGTH_U32];
	u32 key_length;
};

extern const u32 crypto_ft_tab[4][256];
extern const u32 crypto_fl_tab[4][256];
extern const u32 crypto_it_tab[4][256];
extern const 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
Commit	Line	Data
	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	*/
	24	struct 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
	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];
	34
	35	int crypto_aes_set_key(struct crypto_tfm tfm, const u8 in_key,
	36	unsigned int key_len);
	37	int crypto_aes_expand_key(struct crypto_aes_ctx ctx, const u8 in_key,
	38	unsigned int key_len);
	39	#endif