mirror of
https://github.com/torvalds/linux.git
synced 2024-11-01 09:41:44 +00:00
2729bb427f
This patch splits up the twofish crypto routine into a common part ( key setup ) which will be uses by all twofish crypto modules ( generic-c , i586 assembler and x86_64 assembler ) and generic-c part. It also creates a new header file which will be used by all 3 modules. This eliminates all code duplication. Correctness was verified with the tcrypt module and automated test scripts. Signed-off-by: Joachim Fritschi <jfritschi@freenet.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
24 lines
630 B
C
24 lines
630 B
C
#ifndef _CRYPTO_TWOFISH_H
|
|
#define _CRYPTO_TWOFISH_H
|
|
|
|
#include <linux/types.h>
|
|
|
|
#define TF_MIN_KEY_SIZE 16
|
|
#define TF_MAX_KEY_SIZE 32
|
|
#define TF_BLOCK_SIZE 16
|
|
|
|
struct crypto_tfm;
|
|
|
|
/* Structure for an expanded Twofish key. s contains the key-dependent
|
|
* S-boxes composed with the MDS matrix; w contains the eight "whitening"
|
|
* subkeys, K[0] through K[7]. k holds the remaining, "round" subkeys. Note
|
|
* that k[i] corresponds to what the Twofish paper calls K[i+8]. */
|
|
struct twofish_ctx {
|
|
u32 s[4][256], w[8], k[32];
|
|
};
|
|
|
|
int twofish_setkey(struct crypto_tfm *tfm, const u8 *key,
|
|
unsigned int key_len, u32 *flags);
|
|
|
|
#endif
|