LXR linux/include/crypto/arc4.h

   1/* SPDX-License-Identifier: GPL-2.0+ */
   2/*
   3 * Common values for ARC4 Cipher Algorithm
   4 */
   5
   6#ifndef _CRYPTO_ARC4_H
   7#define _CRYPTO_ARC4_H
   8
   9#include <linux/types.h>
  10
  11#define ARC4_MIN_KEY_SIZE       1
  12#define ARC4_MAX_KEY_SIZE       256
  13#define ARC4_BLOCK_SIZE         1
  14
  15struct arc4_ctx {
  16        u32 S[256];
  17        u32 x, y;
  18};
  19
  20int arc4_setkey(struct arc4_ctx *ctx, const u8 *in_key, unsigned int key_len);
  21void arc4_crypt(struct arc4_ctx *ctx, u8 *out, const u8 *in, unsigned int len);
  22
  23#endif /* _CRYPTO_ARC4_H */
  24