From 96e82e4551d38e0863b366a7b61185bc4a9946cc Mon Sep 17 00:00:00 2001 From: Sebastian Siewior Date: Thu, 8 Nov 2007 21:20:30 +0800 Subject: [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: Sebastian Siewior Signed-off-by: Herbert Xu --- include/crypto/aes.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'include/crypto/aes.h') diff --git a/include/crypto/aes.h b/include/crypto/aes.h index 9ff842fc6b8..d480b76715a 100644 --- a/include/crypto/aes.h +++ b/include/crypto/aes.h @@ -5,6 +5,9 @@ #ifndef _CRYPTO_AES_H #define _CRYPTO_AES_H +#include +#include + #define AES_MIN_KEY_SIZE 16 #define AES_MAX_KEY_SIZE 32 #define AES_KEYSIZE_128 16 @@ -12,4 +15,17 @@ #define AES_KEYSIZE_256 32 #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 -- cgit