1#ifndef CRYPTOPP_SERPENT_H
2#define CRYPTOPP_SERPENT_H
3
4/** \file
5*/
6
7#include "seckey.h"
8#include "secblock.h"
9
10NAMESPACE_BEGIN(CryptoPP)
11
12//! _
13struct Serpent_Info : public FixedBlockSize<16>, public VariableKeyLength<16, 0, 32>, public FixedRounds<32>
14{
15	static const char *StaticAlgorithmName() {return "Serpent";}
16};
17
18/// <a href="http://www.weidai.com/scan-mirror/cs.html#Serpent">Serpent</a>
19class Serpent : public Serpent_Info, public BlockCipherDocumentation
20{
21	class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<Serpent_Info>
22	{
23	public:
24		void UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs &params);
25
26	protected:
27		FixedSizeSecBlock<word32, 33*4> m_key;
28	};
29
30	class CRYPTOPP_NO_VTABLE Enc : public Base
31	{
32	public:
33		void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
34	};
35
36	class CRYPTOPP_NO_VTABLE Dec : public Base
37	{
38	public:
39		void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
40	};
41
42public:
43	typedef BlockCipherFinal<ENCRYPTION, Enc> Encryption;
44	typedef BlockCipherFinal<DECRYPTION, Dec> Decryption;
45};
46
47typedef Serpent::Encryption SerpentEncryption;
48typedef Serpent::Decryption SerpentDecryption;
49
50NAMESPACE_END
51
52#endif
53