[mirror_ubuntu-bionic-kernel.git] / include / crypto / aes.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * 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
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
89e12654 SS	2	/*
	3	* Common values for AES algorithms
	4	*/
	5
	6	#ifndef _CRYPTO_AES_H
	7	#define _CRYPTO_AES_H
	8
96e82e45 SS	9	#include <linux/types.h>
	10	#include <linux/crypto.h>
	11
89e12654 SS	12	#define AES_MIN_KEY_SIZE 16
	13	#define AES_MAX_KEY_SIZE 32
	14	#define AES_KEYSIZE_128 16
	15	#define AES_KEYSIZE_192 24
	16	#define AES_KEYSIZE_256 32
	17	#define AES_BLOCK_SIZE 16
5427663f SS	18	#define AES_MAX_KEYLENGTH (15 * 16)
5427663f SS	19	#define AES_MAX_KEYLENGTH_U32 (AES_MAX_KEYLENGTH / sizeof(u32))
89e12654	20
109568e1 HY	21	/*
	22	* Please ensure that the first two fields are 16-byte aligned
	23	* relative to the start of the structure, i.e., don't move them!
	24	*/
96e82e45	25	struct crypto_aes_ctx {
5427663f SS	26	u32 key_enc[AES_MAX_KEYLENGTH_U32];
5427663f SS	27	u32 key_dec[AES_MAX_KEYLENGTH_U32];
109568e1	28	u32 key_length;
96e82e45 SS	29	};
96e82e45 SS	30
0ee4a969 HX	31	extern const u32 crypto_ft_tab[4][256];
	32	extern const u32 crypto_fl_tab[4][256];
	33	extern const u32 crypto_it_tab[4][256];
	34	extern const u32 crypto_il_tab[4][256];
96e82e45 SS	35
	36	int crypto_aes_set_key(struct crypto_tfm tfm, const u8 in_key,
	37	unsigned int key_len);
5427663f SS	38	int crypto_aes_expand_key(struct crypto_aes_ctx ctx, const u8 in_key,
5427663f SS	39	unsigned int key_len);
89e12654	40	#endif