1/* SPDX-License-Identifier: GPL-2.0 */ 2/* 3 * Common values for AES algorithms 4 */ 5 6#ifndef _CRYPTO_AES_H 7#define _CRYPTO_AES_H 8 9#include <linux/types.h> 10#include <linux/crypto.h> 11 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 18#define AES_MAX_KEYLENGTH (15 * 16) 19#define AES_MAX_KEYLENGTH_U32 (AES_MAX_KEYLENGTH / sizeof(u32)) 20 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 */ 25struct crypto_aes_ctx { 26 u32 key_enc[AES_MAX_KEYLENGTH_U32]; 27 u32 key_dec[AES_MAX_KEYLENGTH_U32]; 28 u32 key_length; 29}; 30 31extern const u32 crypto_ft_tab[4][256]; 32extern const u32 crypto_fl_tab[4][256]; 33extern const u32 crypto_it_tab[4][256]; 34extern const u32 crypto_il_tab[4][256]; 35 36int crypto_aes_set_key(struct crypto_tfm *tfm, const u8 *in_key, 37 unsigned int key_len); 38int crypto_aes_expand_key(struct crypto_aes_ctx *ctx, const u8 *in_key, 39 unsigned int key_len); 40#endif 41