aboutsummaryrefslogtreecommitdiffstats
path: root/include/mars.h
blob: cd517f52582458d43d34122a9303c2e07c7d2a14 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
/*************************************************
* MARS Header File                               *
* (C) 1999-2007 The Botan Project                *
*************************************************/

#ifndef BOTAN_MARS_H__
#define BOTAN_MARS_H__

#include <botan/base.h>

namespace Botan {

class MARS : public BlockCipher
   {
   public:
      void clear() throw() { EK.clear(); }
      std::string name() const { return "MARS"; }
      BlockCipher* clone() const { return new MARS; }
      MARS() : BlockCipher(16, 16, 32, 4) {}
   private:
      void enc(const byte[], byte[]) const;
      void dec(const byte[], byte[]) const;
      void key(const byte[], u32bit);

      void encrypt_round(u32bit&, u32bit&, u32bit&, u32bit&, u32bit) const;
      void decrypt_round(u32bit&, u32bit&, u32bit&, u32bit&, u32bit) const;
      static void forward_mix(u32bit&, u32bit&, u32bit&, u32bit&);
      static void reverse_mix(u32bit&, u32bit&, u32bit&, u32bit&);

      static const u32bit SBOX[512];
      SecureBuffer<u32bit, 40> EK;
   };

}

#endif