linux/include/crypto/cast5.h
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   1#ifndef _CRYPTO_CAST5_H
   2#define _CRYPTO_CAST5_H
   3
   4#include <linux/types.h>
   5#include <linux/crypto.h>
   6
   7#define CAST5_BLOCK_SIZE 8
   8#define CAST5_MIN_KEY_SIZE 5
   9#define CAST5_MAX_KEY_SIZE 16
  10
  11struct cast5_ctx {
  12        u32 Km[16];
  13        u8 Kr[16];
  14        int rr; /* rr ? rounds = 12 : rounds = 16; (rfc 2144) */
  15};
  16
  17int cast5_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen);
  18
  19void __cast5_encrypt(struct cast5_ctx *ctx, u8 *dst, const u8 *src);
  20void __cast5_decrypt(struct cast5_ctx *ctx, u8 *dst, const u8 *src);
  21
  22extern const u32 cast5_s1[256];
  23extern const u32 cast5_s2[256];
  24extern const u32 cast5_s3[256];
  25extern const u32 cast5_s4[256];
  26
  27#endif
  28
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