1 files changed, 53 insertions, 0 deletions

diff --git a/CryptoPP/3way.h b/CryptoPP/3way.h
new file mode 100644
index 000000000..33a619e2f
--- /dev/null
+++ b/CryptoPP/3way.h
@@ -0,0 +1,53 @@
+#ifndef CRYPTOPP_THREEWAY_H
+#define CRYPTOPP_THREEWAY_H
+
+/** \file
+*/
+
+#include "seckey.h"
+#include "secblock.h"
+
+NAMESPACE_BEGIN(CryptoPP)
+
+//! _
+struct ThreeWay_Info : public FixedBlockSize<12>, public FixedKeyLength<12>, public VariableRounds<11>
+{
+	static const char *StaticAlgorithmName() {return "3-Way";}
+};
+
+/// <a href="http://www.weidai.com/scan-mirror/cs.html#3-Way">3-Way</a>
+class ThreeWay : public ThreeWay_Info, public BlockCipherDocumentation
+{
+	class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<ThreeWay_Info>
+	{
+	public:
+		void UncheckedSetKey(const byte *key, unsigned int length, const NameValuePairs &params);
+
+	protected:
+		unsigned int m_rounds;
+		FixedSizeSecBlock<word32, 3> m_k;
+	};
+
+	class CRYPTOPP_NO_VTABLE Enc : public Base
+	{
+	public:
+		void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
+	};
+
+	class CRYPTOPP_NO_VTABLE Dec : public Base
+	{
+	public:
+		void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
+	};
+
+public:
+	typedef BlockCipherFinal<ENCRYPTION, Enc> Encryption;
+	typedef BlockCipherFinal<DECRYPTION, Dec> Decryption;
+};
+
+typedef ThreeWay::Encryption ThreeWayEncryption;
+typedef ThreeWay::Decryption ThreeWayDecryption;
+
+NAMESPACE_END
+
+#endif