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externals/cryptopp/square.h

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+// square.h - originally written and placed in the public domain by Wei Dai
+
+/// \file square.h
+/// \brief Classes for the Square block cipher
+
+#ifndef CRYPTOPP_SQUARE_H
+#define CRYPTOPP_SQUARE_H
+
+#include "seckey.h"
+#include "secblock.h"
+
+NAMESPACE_BEGIN(CryptoPP)
+
+/// \brief Square block cipher information
+/// \since Crypto++ 2.2
+struct Square_Info : public FixedBlockSize<16>, public FixedKeyLength<16>, FixedRounds<8>
+{
+	CRYPTOPP_STATIC_CONSTEXPR const char* StaticAlgorithmName() {return "Square";}
+};
+
+/// \brief Square block cipher
+/// \sa <a href="http://www.cryptopp.com/wiki/Square">Square</a>
+/// \since Crypto++ 2.2
+class Square : public Square_Info, public BlockCipherDocumentation
+{
+	class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<Square_Info>
+	{
+	public:
+		void UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs &params);
+
+	protected:
+		FixedSizeSecBlock<word32, 4*(ROUNDS+1)> m_roundkeys;
+	};
+
+	class CRYPTOPP_NO_VTABLE Enc : public Base
+	{
+	public:
+		void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
+	private:
+		static const byte Se[256];
+		static const word32 Te[4][256];
+	};
+
+	class CRYPTOPP_NO_VTABLE Dec : public Base
+	{
+	public:
+		void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
+	private:
+		static const byte Sd[256];
+		static const word32 Td[4][256];
+	};
+
+public:
+	typedef BlockCipherFinal<ENCRYPTION, Enc> Encryption;
+	typedef BlockCipherFinal<DECRYPTION, Dec> Decryption;
+};
+
+typedef Square::Encryption SquareEncryption;
+typedef Square::Decryption SquareDecryption;
+
+NAMESPACE_END
+
+#endif