/*
blowfish.h:  Header file for blowfish.c

Copyright (C) 1997 by Paul Kocher

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA


See blowfish.c for more information about this file.
*/

#include <stdint.h>
#include <stddef.h>

#define BF_KEYLEN       16
#define BF_BLOCKLEN     8

typedef struct {
  unsigned long P[16 + 2];
  unsigned long S[4][256];
} BFCtx;

void bf_init(BFCtx *ctx, uint8_t *key);
void bf_ecb_encrypt(BFCtx *ctx, uint8_t *buf);
void bf_ecb_decrypt(BFCtx *ctx, uint8_t *buf);
void bf_cbc_decrypt(BFCtx *ctx, uint8_t *iv, uint8_t *buf, size_t length);
void bf_cbc_encrypt(BFCtx *ctx, uint8_t *iv, uint8_t *buf, size_t length);