blowfish.h

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/*
 * Author     :  Paul Kocher
 * E-mail     :  pck@netcom.com
 * Date       :  1997
 * Description:  C implementation of the Blowfish algorithm.
 */

#define INCLUDE_BLOWFISH_DEFINE_H

struct BCoptions {
  unsigned char remove;
  unsigned char standardout;
  unsigned char compression;
  unsigned char type;
  unsigned long origsize;
  unsigned char securedelete;
};

#define ENCRYPT 0
#define DECRYPT 1

#define endianBig ((unsigned char)0x45)
#define endianLittle ((unsigned char)0x54)

typedef unsigned int uInt32;

#ifdef WIN32 /* Win32 doesn't have random() or lstat */
#define random() rand()
#define initstate(x, y, z) srand(x)
#define lstat(x, y) stat(x, y)
#endif

#ifndef S_ISREG
#define S_ISREG(x) (((x)&S_IFMT) == S_IFREG)
#endif

#define MAXKEYBYTES 56 /* 448 bits */

struct BLOWFISH_CTX {
  uInt32 P[16 + 2];
  uInt32 S[4][256];
};

void Blowfish_Init(BLOWFISH_CTX *ctx, unsigned char *key, int keyLen);

void Blowfish_Encrypt(BLOWFISH_CTX *ctx, uInt32 *xl, uInt32 *xr);

void Blowfish_Decrypt(BLOWFISH_CTX *ctx, uInt32 *xl, uInt32 *xr);