forked from Minki/linux
5427663f49
The key expansion routine could be get little more generic, become a kernel doc entry and then get exported. Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc> Tested-by: Stefan Hellermann <stefan@the2masters.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
36 lines
859 B
C
36 lines
859 B
C
/*
|
|
* 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))
|
|
|
|
struct crypto_aes_ctx {
|
|
u32 key_length;
|
|
u32 key_enc[AES_MAX_KEYLENGTH_U32];
|
|
u32 key_dec[AES_MAX_KEYLENGTH_U32];
|
|
};
|
|
|
|
extern u32 crypto_ft_tab[4][256];
|
|
extern u32 crypto_fl_tab[4][256];
|
|
extern u32 crypto_it_tab[4][256];
|
|
extern 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
|