41 lines
1 KiB
C
41 lines
1 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Common values for AES algorithms
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*/
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#ifndef _CRYPTO_AES_H
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#define _CRYPTO_AES_H
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#include <linux/types.h>
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#include <linux/crypto.h>
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#define AES_MIN_KEY_SIZE 16
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#define AES_MAX_KEY_SIZE 32
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#define AES_KEYSIZE_128 16
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#define AES_KEYSIZE_192 24
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#define AES_KEYSIZE_256 32
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#define AES_BLOCK_SIZE 16
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#define AES_MAX_KEYLENGTH (15 * 16)
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#define AES_MAX_KEYLENGTH_U32 (AES_MAX_KEYLENGTH / sizeof(u32))
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/*
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* Please ensure that the first two fields are 16-byte aligned
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* relative to the start of the structure, i.e., don't move them!
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*/
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struct crypto_aes_ctx {
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u32 key_enc[AES_MAX_KEYLENGTH_U32];
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u32 key_dec[AES_MAX_KEYLENGTH_U32];
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u32 key_length;
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};
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extern const u32 crypto_ft_tab[4][256];
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extern const u32 crypto_fl_tab[4][256];
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extern const u32 crypto_it_tab[4][256];
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extern const u32 crypto_il_tab[4][256];
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int crypto_aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,
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unsigned int key_len);
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int crypto_aes_expand_key(struct crypto_aes_ctx *ctx, const u8 *in_key,
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unsigned int key_len);
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#endif
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