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authorSebastian Siewior <sebastian@breakpoint.cc>2007-11-08 21:20:30 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2008-01-11 08:16:09 +1100
commit96e82e4551d38e0863b366a7b61185bc4a9946cc (patch)
tree514e38d847cb09c55230ceb3088329ed4175c55c /include/crypto
parentbe5fb270125729b7bca7879967f1dfadff0d9841 (diff)
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[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 <sebastian@breakpoint.cc> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include/crypto')
-rw-r--r--include/crypto/aes.h16
1 files changed, 16 insertions, 0 deletions
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 <linux/types.h>
+#include <linux/crypto.h>
+
#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