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/xtrcrypt.h | 54 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 CryptoPP/xtrcrypt.h (limited to 'CryptoPP/xtrcrypt.h') diff --git a/CryptoPP/xtrcrypt.h b/CryptoPP/xtrcrypt.h new file mode 100644 index 000000000..6aee1276c --- /dev/null +++ b/CryptoPP/xtrcrypt.h @@ -0,0 +1,54 @@ +#ifndef CRYPTOPP_XTRCRYPT_H +#define CRYPTOPP_XTRCRYPT_H + +/** \file + "The XTR public key system" by Arjen K. Lenstra and Eric R. Verheul +*/ + +#include "xtr.h" + +NAMESPACE_BEGIN(CryptoPP) + +//! XTR-DH with key validation + +class XTR_DH : public SimpleKeyAgreementDomain, public CryptoParameters +{ + typedef XTR_DH ThisClass; + +public: + XTR_DH(const Integer &p, const Integer &q, const GFP2Element &g); + XTR_DH(RandomNumberGenerator &rng, unsigned int pbits, unsigned int qbits); + XTR_DH(BufferedTransformation &domainParams); + + void DEREncode(BufferedTransformation &domainParams) const; + + bool Validate(RandomNumberGenerator &rng, unsigned int level) const; + bool GetVoidValue(const char *name, const std::type_info &valueType, void *pValue) const; + void AssignFrom(const NameValuePairs &source); + CryptoParameters & AccessCryptoParameters() {return *this;} + unsigned int AgreedValueLength() const {return 2*m_p.ByteCount();} + unsigned int PrivateKeyLength() const {return m_q.ByteCount();} + unsigned int PublicKeyLength() const {return 2*m_p.ByteCount();} + + void GeneratePrivateKey(RandomNumberGenerator &rng, byte *privateKey) const; + void GeneratePublicKey(RandomNumberGenerator &rng, const byte *privateKey, byte *publicKey) const; + bool Agree(byte *agreedValue, const byte *privateKey, const byte *otherPublicKey, bool validateOtherPublicKey=true) const; + + const Integer &GetModulus() const {return m_p;} + const Integer &GetSubgroupOrder() const {return m_q;} + const GFP2Element &GetSubgroupGenerator() const {return m_g;} + + void SetModulus(const Integer &p) {m_p = p;} + void SetSubgroupOrder(const Integer &q) {m_q = q;} + void SetSubgroupGenerator(const GFP2Element &g) {m_g = g;} + +private: + unsigned int ExponentBitLength() const; + + Integer m_p, m_q; + GFP2Element m_g; +}; + +NAMESPACE_END + +#endif -- cgit v1.2.3