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| author | Sebastian Siewior <sebastian@breakpoint.cc> | 2007-11-08 14:20:30 +0100 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2008-01-10 22:16:09 +0100 |
| commit | 96e82e4551d38e0863b366a7b61185bc4a9946cc (patch) | |
| tree | 514e38d847cb09c55230ceb3088329ed4175c55c /include/crypto | |
| parent | [CRYPTO] aes-generic: Coding style cleanup (diff) | |
| download | linux-96e82e4551d38e0863b366a7b61185bc4a9946cc.tar.xz linux-96e82e4551d38e0863b366a7b61185bc4a9946cc.zip | |
[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.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/include/crypto/aes.h b/include/crypto/aes.h index 9ff842fc6b89..d480b76715a8 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 |