aboutsummaryrefslogtreecommitdiffstats
path: root/include/crypto/cast5.h
blob: 586183a0406e8d90b09e8226156fa7888fdb908e (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
#ifndef _CRYPTO_CAST5_H
#define _CRYPTO_CAST5_H

#include <linux/types.h>
#include <linux/crypto.h>

#define CAST5_BLOCK_SIZE 8
#define CAST5_MIN_KEY_SIZE 5
#define CAST5_MAX_KEY_SIZE 16

struct cast5_ctx {
	u32 Km[16];
	u8 Kr[16];
	int rr;	/* rr ? rounds = 12 : rounds = 16; (rfc 2144) */
};

int cast5_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen);

void __cast5_encrypt(struct cast5_ctx *ctx, u8 *dst, const u8 *src);
void __cast5_decrypt(struct cast5_ctx *ctx, u8 *dst, const u8 *src);

extern const u32 cast5_s1[256];
extern const u32 cast5_s2[256];
extern const u32 cast5_s3[256];
extern const u32 cast5_s4[256];

#endif