include/crypto/cast5.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _CRYPTO_CAST5_H
   3 #define _CRYPTO_CAST5_H
   4
   5 #include <linux/types.h>
   6 #include <linux/crypto.h>
   7 #include <crypto/cast_common.h>
   8
   9 #define CAST5_BLOCK_SIZE 8
  10 #define CAST5_MIN_KEY_SIZE 5
  11 #define CAST5_MAX_KEY_SIZE 16
  12
  13 struct cast5_ctx {
  14         u32 Km[16];
  15         u8 Kr[16];
  16         int rr; /* rr ? rounds = 12 : rounds = 16; (rfc 2144) */
  17 };
  18
  19 int cast5_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen);
  20
  21 void __cast5_encrypt(struct cast5_ctx *ctx, u8 *dst, const u8 *src);
  22 void __cast5_decrypt(struct cast5_ctx *ctx, u8 *dst, const u8 *src);
  23
  24 #endif