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diff --git a/camellia.h b/camellia.h
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+#ifndef CRYPTOPP_CAMELLIA_H
+#define CRYPTOPP_CAMELLIA_H
+
+#include "config.h"
+
+#ifdef WORD64_AVAILABLE
+
+/** \file
+*/
+
+#include "seckey.h"
+#include "secblock.h"
+
+NAMESPACE_BEGIN(CryptoPP)
+
+struct Camellia_Info : public FixedBlockSize<16>, public VariableKeyLength<16, 16, 32, 8>
+{
+	static const char *StaticAlgorithmName() {return "Camellia";}
+};
+
+/// <a href="http://www.weidai.com/scan-mirror/cs.html#Camellia">Camellia</a>
+class Camellia : public Camellia_Info, public BlockCipherDocumentation
+{
+	class Base : public BlockCipherBaseTemplate<Camellia_Info>
+	{
+	public:
+		void UncheckedSetKey(CipherDir dir, const byte *key, unsigned int keylen);
+		void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
+
+	protected:
+		static word64 F(word64 X);
+		static void FLlayer(word64 *x, word64 K1, word64 K2);
+
+		static const byte s1[256];
+		static const byte s2[256];
+		static const byte s3[256];
+		static const byte s4[256];
+
+		unsigned int m_rounds;
+		SecBlock<word64> m_key;
+	};
+
+public:
+	typedef BlockCipherTemplate<ENCRYPTION, Base> Encryption;
+	typedef BlockCipherTemplate<DECRYPTION, Base> Decryption;
+};
+
+typedef Camellia::Encryption CamelliaEncryption;
+typedef Camellia::Decryption CamelliaDecryption;
+
+NAMESPACE_END
+
+#endif
+
+#endif