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/emsa2.h | 86 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 86 insertions(+)
 create mode 100644 CryptoPP/emsa2.h

(limited to 'CryptoPP/emsa2.h')

diff --git a/CryptoPP/emsa2.h b/CryptoPP/emsa2.h
new file mode 100644
index 000000000..49109e6db
--- /dev/null
+++ b/CryptoPP/emsa2.h
@@ -0,0 +1,86 @@
+#ifndef CRYPTOPP_EMSA2_H
+#define CRYPTOPP_EMSA2_H
+
+/** \file
+	This file contains various padding schemes for public key algorithms.
+*/
+
+#include "cryptlib.h"
+#include "pubkey.h"
+
+#ifdef CRYPTOPP_IS_DLL
+#include "sha.h"
+#endif
+
+NAMESPACE_BEGIN(CryptoPP)
+
+template <class H> class EMSA2HashId
+{
+public:
+	static const byte id;
+};
+
+template <class BASE>
+class EMSA2HashIdLookup : public BASE
+{
+public:
+	struct HashIdentifierLookup
+	{
+		template <class H> struct HashIdentifierLookup2
+		{
+			static HashIdentifier Lookup()
+			{
+				return HashIdentifier(&EMSA2HashId<H>::id, 1);
+			}
+		};
+	};
+};
+
+// EMSA2HashId can be instantiated with the following classes.
+class SHA1;
+class RIPEMD160;
+class RIPEMD128;
+class SHA256;
+class SHA384;
+class SHA512;
+class Whirlpool;
+class SHA224;
+// end of list
+
+#ifdef CRYPTOPP_IS_DLL
+CRYPTOPP_DLL_TEMPLATE_CLASS EMSA2HashId<SHA1>;
+CRYPTOPP_DLL_TEMPLATE_CLASS EMSA2HashId<SHA224>;
+CRYPTOPP_DLL_TEMPLATE_CLASS EMSA2HashId<SHA256>;
+CRYPTOPP_DLL_TEMPLATE_CLASS EMSA2HashId<SHA384>;
+CRYPTOPP_DLL_TEMPLATE_CLASS EMSA2HashId<SHA512>;
+#endif
+
+//! _
+class CRYPTOPP_DLL EMSA2Pad : public EMSA2HashIdLookup<PK_DeterministicSignatureMessageEncodingMethod>
+{
+public:
+	static const char * CRYPTOPP_API StaticAlgorithmName() {return "EMSA2";}
+	
+	size_t MinRepresentativeBitLength(size_t hashIdentifierLength, size_t digestLength) const
+		{return 8*digestLength + 31;}
+
+	void ComputeMessageRepresentative(RandomNumberGenerator &rng, 
+		const byte *recoverableMessage, size_t recoverableMessageLength,
+		HashTransformation &hash, HashIdentifier hashIdentifier, bool messageEmpty,
+		byte *representative, size_t representativeBitLength) const;
+};
+
+//! EMSA2, for use with RWSS and RSA_ISO
+/*! Only the following hash functions are supported by this signature standard:
+	\dontinclude emsa2.h
+	\skip EMSA2HashId can be instantiated
+	\until end of list
+*/
+struct P1363_EMSA2 : public SignatureStandard
+{
+	typedef EMSA2Pad SignatureMessageEncodingMethod;
+};
+
+NAMESPACE_END
+
+#endif
-- 
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