Initial revision

git-svn-id: svn://svn.code.sf.net/p/cryptopp/code/trunk/c5@2 57ff6487-cd31-0410-9ec3-f628ee90f5f0

1 files changed, 109 insertions, 0 deletions

diff --git a/diamond.h b/diamond.h
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index 0000000..1aae696
--- /dev/null
+++ b/diamond.h
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+#ifndef CRYPTOPP_DIAMOND_H
+#define CRYPTOPP_DIAMOND_H
+
+/** \file
+*/
+
+#include "seckey.h"
+#include "secblock.h"
+
+NAMESPACE_BEGIN(CryptoPP)
+
+struct Diamond2_Info : public FixedBlockSize<16>, public VariableKeyLength<16, 1, 256>, public VariableRounds<10>
+{
+	static const char *StaticAlgorithmName() {return "Diamond2";}
+};
+
+/// <a href="http://www.weidai.com/scan-mirror/cs.html#Diamond2">Diamond2</a>
+class Diamond2 : public Diamond2_Info, public BlockCipherDocumentation
+{
+	class Base : public BlockCipherBaseTemplate<Diamond2_Info>
+	{
+	public:
+		void UncheckedSetKey(CipherDir direction, const byte *userKey, unsigned int length, unsigned int rounds);
+
+	protected:
+		enum {ROUNDSIZE=4096};
+		inline void substitute(int round, byte *x, const byte *y) const;
+
+		int numrounds;
+		SecByteBlock s;         // Substitution boxes
+
+		static inline void permute(byte *);
+		static inline void ipermute(byte *);
+#ifdef DIAMOND_USE_PERMTABLE
+		static const word32 permtable[9][256];
+		static const word32 ipermtable[9][256];
+#endif
+	};
+
+	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 Diamond2::Encryption Diamond2Encryption;
+typedef Diamond2::Decryption Diamond2Decryption;
+
+struct Diamond2Lite_Info : public FixedBlockSize<8>, public VariableKeyLength<16, 1, 256>, public VariableRounds<8>
+{
+	static const char *StaticAlgorithmName() {return "Diamond2Lite";}
+};
+
+/// <a href="http://www.weidai.com/scan-mirror/cs.html#Diamond2">Diamond2Lite</a>
+class Diamond2Lite : public Diamond2Lite_Info, public BlockCipherDocumentation
+{
+	class Base : public BlockCipherBaseTemplate<Diamond2Lite_Info>
+	{
+	public:
+		void UncheckedSetKey(CipherDir direction, const byte *userKey, unsigned int length, unsigned int rounds);
+
+	protected:
+		enum {ROUNDSIZE=2048};
+		inline void substitute(int round, byte *x, const byte *y) const;
+		int numrounds;
+		SecByteBlock s;         // Substitution boxes
+
+		static inline void permute(byte *);
+		static inline void ipermute(byte *);
+	#ifdef DIAMOND_USE_PERMTABLE
+		static const word32 permtable[8][256];
+		static const word32 ipermtable[8][256];
+	#endif
+	};
+
+	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 Diamond2Lite::Encryption Diamond2LiteEncryption;
+typedef Diamond2Lite::Decryption Diamond2LiteDecryption;
+
+NAMESPACE_END
+
+#endif