Commit 96e82e45 authored by Sebastian Siewior's avatar Sebastian Siewior Committed by Herbert Xu

[CRYPTO] aes-generic: Make key generation exportable

This patch exports four tables and the set_key() routine. This ressources
can be shared by other AES implementations (aes-x86_64 for instance).
The decryption key has been turned around (deckey[0] is the first piece
of the key instead of deckey[keylen+20]). The encrypt/decrypt functions
are looking now identical (except they are using different tables and
key).
Signed-off-by: default avatarSebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent be5fb270
This diff is collapsed.
...@@ -5,6 +5,9 @@ ...@@ -5,6 +5,9 @@
#ifndef _CRYPTO_AES_H #ifndef _CRYPTO_AES_H
#define _CRYPTO_AES_H #define _CRYPTO_AES_H
#include <linux/types.h>
#include <linux/crypto.h>
#define AES_MIN_KEY_SIZE 16 #define AES_MIN_KEY_SIZE 16
#define AES_MAX_KEY_SIZE 32 #define AES_MAX_KEY_SIZE 32
#define AES_KEYSIZE_128 16 #define AES_KEYSIZE_128 16
...@@ -12,4 +15,17 @@ ...@@ -12,4 +15,17 @@
#define AES_KEYSIZE_256 32 #define AES_KEYSIZE_256 32
#define AES_BLOCK_SIZE 16 #define AES_BLOCK_SIZE 16
struct crypto_aes_ctx {
u32 key_length;
u32 key_enc[60];
u32 key_dec[60];
};
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);
#endif #endif
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