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/* 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