From 539364846a89987ac2679988653f50332cb91d26 Mon Sep 17 00:00:00 2001 From: "madmaxoft@gmail.com" 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/simple.h | 209 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 209 insertions(+) create mode 100644 CryptoPP/simple.h (limited to 'CryptoPP/simple.h') diff --git a/CryptoPP/simple.h b/CryptoPP/simple.h new file mode 100644 index 000000000..35fd65ae4 --- /dev/null +++ b/CryptoPP/simple.h @@ -0,0 +1,209 @@ +// simple.h - written and placed in the public domain by Wei Dai +/*! \file + Simple non-interface classes derived from classes in cryptlib.h. +*/ + +#ifndef CRYPTOPP_SIMPLE_H +#define CRYPTOPP_SIMPLE_H + +#include "cryptlib.h" +#include "misc.h" + +NAMESPACE_BEGIN(CryptoPP) + +//! _ +template +class CRYPTOPP_NO_VTABLE ClonableImpl : public BASE +{ +public: + Clonable * Clone() const {return new DERIVED(*static_cast(this));} +}; + +//! _ +template +class CRYPTOPP_NO_VTABLE AlgorithmImpl : public BASE +{ +public: + static std::string CRYPTOPP_API StaticAlgorithmName() {return ALGORITHM_INFO::StaticAlgorithmName();} + std::string AlgorithmName() const {return ALGORITHM_INFO::StaticAlgorithmName();} +}; + +//! _ +class CRYPTOPP_DLL InvalidKeyLength : public InvalidArgument +{ +public: + explicit InvalidKeyLength(const std::string &algorithm, size_t length) : InvalidArgument(algorithm + ": " + IntToString(length) + " is not a valid key length") {} +}; + +//! _ +class CRYPTOPP_DLL InvalidRounds : public InvalidArgument +{ +public: + explicit InvalidRounds(const std::string &algorithm, unsigned int rounds) : InvalidArgument(algorithm + ": " + IntToString(rounds) + " is not a valid number of rounds") {} +}; + +// ***************************** + +//! _ +template +class CRYPTOPP_NO_VTABLE Bufferless : public T +{ +public: + bool IsolatedFlush(bool hardFlush, bool blocking) {return false;} +}; + +//! _ +template +class CRYPTOPP_NO_VTABLE Unflushable : public T +{ +public: + bool Flush(bool completeFlush, int propagation=-1, bool blocking=true) + {return ChannelFlush(DEFAULT_CHANNEL, completeFlush, propagation, blocking);} + bool IsolatedFlush(bool hardFlush, bool blocking) + {assert(false); return false;} + bool ChannelFlush(const std::string &channel, bool hardFlush, int propagation=-1, bool blocking=true) + { + if (hardFlush && !InputBufferIsEmpty()) + throw CannotFlush("Unflushable: this object has buffered input that cannot be flushed"); + else + { + BufferedTransformation *attached = this->AttachedTransformation(); + return attached && propagation ? attached->ChannelFlush(channel, hardFlush, propagation-1, blocking) : false; + } + } + +protected: + virtual bool InputBufferIsEmpty() const {return false;} +}; + +//! _ +template +class CRYPTOPP_NO_VTABLE InputRejecting : public T +{ +public: + struct InputRejected : public NotImplemented + {InputRejected() : NotImplemented("BufferedTransformation: this object doesn't allow input") {}}; + + // shouldn't be calling these functions on this class + size_t Put2(const byte *begin, size_t length, int messageEnd, bool blocking) + {throw InputRejected();} + bool IsolatedFlush(bool, bool) {return false;} + bool IsolatedMessageSeriesEnd(bool) {throw InputRejected();} + + size_t ChannelPut2(const std::string &channel, const byte *begin, size_t length, int messageEnd, bool blocking) + {throw InputRejected();} + bool ChannelMessageSeriesEnd(const std::string &, int, bool) {throw InputRejected();} +}; + +//! _ +template +class CRYPTOPP_NO_VTABLE CustomFlushPropagation : public T +{ +public: + virtual bool Flush(bool hardFlush, int propagation=-1, bool blocking=true) =0; + +private: + bool IsolatedFlush(bool hardFlush, bool blocking) {assert(false); return false;} +}; + +//! _ +template +class CRYPTOPP_NO_VTABLE CustomSignalPropagation : public CustomFlushPropagation +{ +public: + virtual void Initialize(const NameValuePairs ¶meters=g_nullNameValuePairs, int propagation=-1) =0; + +private: + void IsolatedInitialize(const NameValuePairs ¶meters) {assert(false);} +}; + +//! _ +template +class CRYPTOPP_NO_VTABLE Multichannel : public CustomFlushPropagation +{ +public: + bool Flush(bool hardFlush, int propagation=-1, bool blocking=true) + {return this->ChannelFlush(DEFAULT_CHANNEL, hardFlush, propagation, blocking);} + bool MessageSeriesEnd(int propagation=-1, bool blocking=true) + {return this->ChannelMessageSeriesEnd(DEFAULT_CHANNEL, propagation, blocking);} + byte * CreatePutSpace(size_t &size) + {return this->ChannelCreatePutSpace(DEFAULT_CHANNEL, size);} + size_t Put2(const byte *begin, size_t length, int messageEnd, bool blocking) + {return this->ChannelPut2(DEFAULT_CHANNEL, begin, length, messageEnd, blocking);} + size_t PutModifiable2(byte *inString, size_t length, int messageEnd, bool blocking) + {return this->ChannelPutModifiable2(DEFAULT_CHANNEL, inString, length, messageEnd, blocking);} + +// void ChannelMessageSeriesEnd(const std::string &channel, int propagation=-1) +// {PropagateMessageSeriesEnd(propagation, channel);} + byte * ChannelCreatePutSpace(const std::string &channel, size_t &size) + {size = 0; return NULL;} + bool ChannelPutModifiable(const std::string &channel, byte *inString, size_t length) + {this->ChannelPut(channel, inString, length); return false;} + + virtual size_t ChannelPut2(const std::string &channel, const byte *begin, size_t length, int messageEnd, bool blocking) =0; + size_t ChannelPutModifiable2(const std::string &channel, byte *begin, size_t length, int messageEnd, bool blocking) + {return ChannelPut2(channel, begin, length, messageEnd, blocking);} + + virtual bool ChannelFlush(const std::string &channel, bool hardFlush, int propagation=-1, bool blocking=true) =0; +}; + +//! _ +template +class CRYPTOPP_NO_VTABLE AutoSignaling : public T +{ +public: + AutoSignaling(int propagation=-1) : m_autoSignalPropagation(propagation) {} + + void SetAutoSignalPropagation(int propagation) + {m_autoSignalPropagation = propagation;} + int GetAutoSignalPropagation() const + {return m_autoSignalPropagation;} + +private: + int m_autoSignalPropagation; +}; + +//! A BufferedTransformation that only contains pre-existing data as "output" +class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE Store : public AutoSignaling > +{ +public: + Store() : m_messageEnd(false) {} + + void IsolatedInitialize(const NameValuePairs ¶meters) + { + m_messageEnd = false; + StoreInitialize(parameters); + } + + unsigned int NumberOfMessages() const {return m_messageEnd ? 0 : 1;} + bool GetNextMessage(); + unsigned int CopyMessagesTo(BufferedTransformation &target, unsigned int count=UINT_MAX, const std::string &channel=DEFAULT_CHANNEL) const; + +protected: + virtual void StoreInitialize(const NameValuePairs ¶meters) =0; + + bool m_messageEnd; +}; + +//! A BufferedTransformation that doesn't produce any retrievable output +class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE Sink : public BufferedTransformation +{ +public: + size_t TransferTo2(BufferedTransformation &target, lword &transferBytes, const std::string &channel=DEFAULT_CHANNEL, bool blocking=true) + {transferBytes = 0; return 0;} + size_t CopyRangeTo2(BufferedTransformation &target, lword &begin, lword end=LWORD_MAX, const std::string &channel=DEFAULT_CHANNEL, bool blocking=true) const + {return 0;} +}; + +class CRYPTOPP_DLL BitBucket : public Bufferless +{ +public: + std::string AlgorithmName() const {return "BitBucket";} + void IsolatedInitialize(const NameValuePairs ¶meters) {} + size_t Put2(const byte *begin, size_t length, int messageEnd, bool blocking) + {return 0;} +}; + +NAMESPACE_END + +#endif -- cgit v1.2.3