[mirror_ubuntu-artful-kernel.git] / include / crypto / twofish.h

#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 twofish_ctx *ctx, const u8 *key,
		     unsigned int key_len, u32 *flags);
int twofish_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int key_len);

#endif
Commit	Line	Data
2729bb42 JF	1	#ifndef _CRYPTO_TWOFISH_H
	2	#define _CRYPTO_TWOFISH_H
	3
	4	#include <linux/types.h>
	5
	6	#define TF_MIN_KEY_SIZE 16
	7	#define TF_MAX_KEY_SIZE 32
	8	#define TF_BLOCK_SIZE 16
	9
	10	struct crypto_tfm;
	11
	12	/* Structure for an expanded Twofish key. s contains the key-dependent
	13	* S-boxes composed with the MDS matrix; w contains the eight "whitening"
	14	* subkeys, K[0] through K[7]. k holds the remaining, "round" subkeys. Note
	15	* that k[i] corresponds to what the Twofish paper calls K[i+8]. */
	16	struct twofish_ctx {
	17	u32 s[4][256], w[8], k[32];
	18	};
	19
81559f9a JK	20	int __twofish_setkey(struct twofish_ctx ctx, const u8 key,
81559f9a JK	21	unsigned int key_len, u32 *flags);
560c06ae	22	int twofish_setkey(struct crypto_tfm tfm, const u8 key, unsigned int key_len);
2729bb42 JF	23
2729bb42 JF	24	#endif