public static extern void BlowfishInit(ref BlowfishObj Obj);
 public static extern void BlowfishDecrypt(ref BlowfishObj Obj, byte[] input, [In, Out] byte[] output, int len);
 public static extern void BlowfishEncrypt(ref BlowfishObj Obj, byte[] input, [In, Out] byte[] output, int len);
 public static extern void BlowfishInit(ref BlowfishObj Obj);