95 lines
2.8 KiB
C++
95 lines
2.8 KiB
C++
// Ryzom - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
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// Copyright (C) 2010 Winch Gate Property Limited
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#include "stdpch.h"
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#include "security_check.h"
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using namespace NLMISC;
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using namespace NLNET;
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//
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CSecurityCheckForFastDisconnection::CSecurityCheckForFastDisconnection()
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{
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memset(&Block, 0, sizeof(Block)); // ensure encode() will work the same of different builds
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}
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//
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void CSecurityCheckForFastDisconnection::receiveSecurityCode(NLMISC::IStream& msgin)
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{
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msgin.serial(Block.SessionId);
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SecurityCode.serial(msgin);
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}
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//
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void CSecurityCheckForFastDisconnection::forwardSecurityCode(NLMISC::IStream& msgout, TSessionId sessionId, CSecurityCode& securityCode)
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{
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msgout.serial(sessionId);
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securityCode.serial(msgout);
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}
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//
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CSecurityCode CSecurityCheckForFastDisconnection::encode(const char *passPhrase)
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{
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if (!passPhrase)
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throw Exception("Null passPhrase");
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strncpy(Block.PassPhrase, passPhrase, 10);
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CHashKeyMD5 md5 = getMD5((uint8*)&Block, sizeof(Block));
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CSecurityCode sc; // parts from NLMISC::CHashKeyMD5 (would CRC16 be better?)
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sc.Data[0] = md5.Data[0];
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sc.Data[1] = md5.Data[15];
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return sc;
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}
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//
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void CSecurityCheckForFastDisconnection::check(const char *passPhrase)
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{
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if (SecurityCode != encode(passPhrase))
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throw Exception("Check not passed");
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}
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/*
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// The following code helps ensure a sub portion of the md5 produces a wide range of different data
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for (uint i=1; i!=10000; ++i)
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{
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CSecurityCheckForFastDisconnection securityCheck;
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securityCheck.setSessionId(i);
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securityCheck.setCookie(cookie);
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CHashKeyMD5 md5 = securityCheck.encode(""); // replace by pwd
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uint8 Data[2];
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Data[0] = md5.Data[0];
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Data[1] = md5.Data[15];
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InfoLog->displayNL("%u\t%u", i, Data[0] + (Data[1] << 8));
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}
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for (uint i=1; i!=100; ++i)
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{
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CLoginCookie ck2;
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ck2.set(cookie.getUserAddr(), cookie.generateKey(), cookie.getUserId());
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CSecurityCheckForFastDisconnection securityCheck;
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securityCheck.setSessionId(sessionId);
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securityCheck.setCookie(ck2);
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CHashKeyMD5 md5 = securityCheck.encode(""); // replace by pwd
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uint8 Data[2];
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Data[0] = md5.Data[0];
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Data[1] = md5.Data[15];
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InfoLog->displayNL("%u\t%u", i, Data[0] + (Data[1] << 8));
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}
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*/
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