Initial revision

1 files changed, 53 insertions, 0 deletions

diff --git a/rc6.h b/rc6.h
new file mode 100644
index 00000000..bbaacc9e
--- /dev/null
+++ b/rc6.h
@@ -0,0 +1,53 @@
+#ifndef CRYPTOPP_RC6_H
+#define CRYPTOPP_RC6_H
+
+/** \file
+*/
+
+#include "seckey.h"
+#include "secblock.h"
+
+NAMESPACE_BEGIN(CryptoPP)
+
+struct RC6_Info : public FixedBlockSize<16>, public VariableKeyLength<16, 0, 255>, public VariableRounds<20>
+{
+	static const char *StaticAlgorithmName() {return "RC6";}
+	typedef word32 RC6_WORD;
+};
+
+/// <a href="http://www.weidai.com/scan-mirror/cs.html#RC6">RC6</a>
+class RC6 : public RC6_Info, public BlockCipherDocumentation
+{
+	class Base : public BlockCipherBaseTemplate<RC6_Info>
+	{
+	public:
+		void UncheckedSetKey(CipherDir direction, const byte *userKey, unsigned int length, unsigned int rounds);
+
+	protected:
+		unsigned int r;       // number of rounds
+		SecBlock<RC6_WORD> sTable;  // expanded key table
+	};
+
+	class Enc : public Base
+	{
+	public:
+		void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
+	};
+
+	class Dec : public Base
+	{
+	public:
+		void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
+	};
+
+public:
+	typedef BlockCipherTemplate<ENCRYPTION, Enc> Encryption;
+	typedef BlockCipherTemplate<DECRYPTION, Dec> Decryption;
+};
+
+typedef RC6::Encryption RC6Encryption;
+typedef RC6::Decryption RC6Decryption;
+
+NAMESPACE_END
+
+#endif