des.h

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// MAIN-ONLY: DO NOT MODIFY THIS FILE
 
/*
 * Copyright (C) Telecom Paris
 * 
 * This file must be used under the terms of the CeCILL. This source
 * file is licensed as described in the file COPYING, which you should
 * have received as part of this distribution. The terms are also
 * available at:
 * https://cecill.info/licences/Licence_CeCILL_V2.1-en.html
*/
 
#ifndef DES_H
#define DES_H
 
#include <stdint.h>
#include <inttypes.h>
 
extern uint8_t left_shifts[16];
 
int hamming_weight (uint64_t val  );
 
int hamming_distance (uint64_t val1  ,
                      uint64_t val2
  );
 
uint64_t des_ip (uint64_t val);
 
uint64_t des_n_ip (uint64_t val  );
 
uint64_t des_fp (uint64_t val  );
 
uint64_t des_n_fp (uint64_t val  );
 
uint64_t des_e (uint64_t val  );
 
uint64_t des_n_e (uint64_t val  );
 
uint64_t des_p (uint64_t val  );
 
uint64_t des_n_p (uint64_t val  );
 
uint64_t des_pc1 (uint64_t val  );
 
uint64_t des_set_parity_bits (uint64_t val  );
 
uint64_t des_n_pc1 (uint64_t val  );
 
uint64_t des_pc2 (uint64_t val  );
 
uint64_t des_n_pc2 (uint64_t val  );
 
uint64_t des_sbox (int sbox  ,
                   uint64_t val
  );
 
uint64_t des_sboxes (uint64_t val  );
 
uint64_t des_right_half (uint64_t val  );
 
uint64_t des_left_half (uint64_t val  );
 
uint64_t des_ls (uint64_t val  );
 
uint64_t des_rs (uint64_t val  );
 
uint64_t des_f (uint64_t rk  ,
                uint64_t val
  );
 
void des_ks (
              uint64_t * ks, uint64_t val
  );
 
uint64_t des_enc (uint64_t * ks  ,
                  uint64_t val
  );
 
uint64_t des_dec (uint64_t * ks  ,
                  uint64_t val
  );
 
int des_check (void);
 
#endif