#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 crypto_tfm *tfm, const u8 *key, unsigned int key_len); | |

#endif |