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/*************************************************
* DES Header File *
* (C) 1999-2007 Jack Lloyd *
*************************************************/
#ifndef BOTAN_DES_H__
#define BOTAN_DES_H__
#include <botan/block_cipher.h>
namespace Botan {
/*************************************************
* DES *
*************************************************/
class BOTAN_DLL DES : public BlockCipher
{
public:
void clear() throw() { round_key.clear(); }
std::string name() const { return "DES"; }
BlockCipher* clone() const { return new DES; }
DES() : BlockCipher(8, 8) {}
private:
void enc(const byte[], byte[]) const;
void dec(const byte[], byte[]) const;
void key(const byte[], u32bit);
SecureBuffer<u32bit, 32> round_key;
};
/*************************************************
* Triple DES *
*************************************************/
class BOTAN_DLL TripleDES : public BlockCipher
{
public:
void clear() throw() { round_key.clear(); }
std::string name() const { return "TripleDES"; }
BlockCipher* clone() const { return new TripleDES; }
TripleDES() : BlockCipher(8, 16, 24, 8) {}
private:
void enc(const byte[], byte[]) const;
void dec(const byte[], byte[]) const;
void key(const byte[], u32bit);
SecureBuffer<u32bit, 96> round_key;
};
/*************************************************
* DES Tables *
*************************************************/
extern const u32bit DES_SPBOX1[256];
extern const u32bit DES_SPBOX2[256];
extern const u32bit DES_SPBOX3[256];
extern const u32bit DES_SPBOX4[256];
extern const u32bit DES_SPBOX5[256];
extern const u32bit DES_SPBOX6[256];
extern const u32bit DES_SPBOX7[256];
extern const u32bit DES_SPBOX8[256];
extern const u64bit DES_IPTAB1[256];
extern const u64bit DES_IPTAB2[256];
extern const u64bit DES_FPTAB1[256];
extern const u64bit DES_FPTAB2[256];
}
#endif
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