From 539364846a89987ac2679988653f50332cb91d26 Mon Sep 17 00:00:00 2001
From: "madmaxoft@gmail.com"
 <madmaxoft@gmail.com@0a769ca7-a7f5-676a-18bf-c427514a06d6>
Date: Thu, 30 Aug 2012 21:06:13 +0000
Subject: Implemented 1.3.2 protocol encryption using CryptoPP, up to Client
 Status packet (http://wiki.vg/Protocol_FAQ step 14)

git-svn-id: http://mc-server.googlecode.com/svn/trunk@808 0a769ca7-a7f5-676a-18bf-c427514a06d6
---
 CryptoPP/safer.h | 86 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 86 insertions(+)
 create mode 100644 CryptoPP/safer.h

(limited to 'CryptoPP/safer.h')

diff --git a/CryptoPP/safer.h b/CryptoPP/safer.h
new file mode 100644
index 000000000..f9a3c9e1f
--- /dev/null
+++ b/CryptoPP/safer.h
@@ -0,0 +1,86 @@
+#ifndef CRYPTOPP_SAFER_H
+#define CRYPTOPP_SAFER_H
+
+/** \file
+*/
+
+#include "seckey.h"
+#include "secblock.h"
+
+NAMESPACE_BEGIN(CryptoPP)
+
+/// base class, do not use directly
+class SAFER
+{
+public:
+	class CRYPTOPP_NO_VTABLE Base : public BlockCipher
+	{
+	public:
+		unsigned int OptimalDataAlignment() const {return 1;}
+		void UncheckedSetKey(const byte *userkey, unsigned int length, const NameValuePairs &params);
+
+	protected:
+		virtual bool Strengthened() const =0;
+
+		SecByteBlock keySchedule;
+		static const byte exp_tab[256];
+		static const byte log_tab[256];
+	};
+
+	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;
+	};
+};
+
+template <class BASE, class INFO, bool STR>
+class CRYPTOPP_NO_VTABLE SAFER_Impl : public BlockCipherImpl<INFO, BASE>
+{
+protected:
+	bool Strengthened() const {return STR;}
+};
+
+//! _
+struct SAFER_K_Info : public FixedBlockSize<8>, public VariableKeyLength<16, 8, 16, 8>, public VariableRounds<10, 1, 13>
+{
+	static const char *StaticAlgorithmName() {return "SAFER-K";}
+};
+
+/// <a href="http://www.weidai.com/scan-mirror/cs.html#SAFER-K">SAFER-K</a>
+class SAFER_K : public SAFER_K_Info, public SAFER, public BlockCipherDocumentation
+{
+public:
+	typedef BlockCipherFinal<ENCRYPTION, SAFER_Impl<Enc, SAFER_K_Info, false> > Encryption;
+	typedef BlockCipherFinal<DECRYPTION, SAFER_Impl<Dec, SAFER_K_Info, false> > Decryption;
+};
+
+//! _
+struct SAFER_SK_Info : public FixedBlockSize<8>, public VariableKeyLength<16, 8, 16, 8>, public VariableRounds<10, 1, 13>
+{
+	static const char *StaticAlgorithmName() {return "SAFER-SK";}
+};
+
+/// <a href="http://www.weidai.com/scan-mirror/cs.html#SAFER-SK">SAFER-SK</a>
+class SAFER_SK : public SAFER_SK_Info, public SAFER, public BlockCipherDocumentation
+{
+public:
+	typedef BlockCipherFinal<ENCRYPTION, SAFER_Impl<Enc, SAFER_SK_Info, true> > Encryption;
+	typedef BlockCipherFinal<DECRYPTION, SAFER_Impl<Dec, SAFER_SK_Info, true> > Decryption;
+};
+
+typedef SAFER_K::Encryption SAFER_K_Encryption;
+typedef SAFER_K::Decryption SAFER_K_Decryption;
+
+typedef SAFER_SK::Encryption SAFER_SK_Encryption;
+typedef SAFER_SK::Decryption SAFER_SK_Decryption;
+
+NAMESPACE_END
+
+#endif
-- 
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