117 lines
3.5 KiB
C++
117 lines
3.5 KiB
C++
// Copyright (c) 2014-2015 The Dash developers
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// Copyright (c) 2015-2017 The PIVX developers
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// Distributed under the MIT/X11 software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include "obfuscation-relay.h"
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CObfuScationRelay::CObfuScationRelay()
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{
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vinMasternode = CTxIn();
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nBlockHeight = 0;
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nRelayType = 0;
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in = CTxIn();
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out = CTxOut();
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}
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CObfuScationRelay::CObfuScationRelay(CTxIn& vinMasternodeIn, vector<unsigned char>& vchSigIn, int nBlockHeightIn, int nRelayTypeIn, CTxIn& in2, CTxOut& out2)
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{
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vinMasternode = vinMasternodeIn;
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vchSig = vchSigIn;
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nBlockHeight = nBlockHeightIn;
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nRelayType = nRelayTypeIn;
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in = in2;
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out = out2;
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}
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std::string CObfuScationRelay::ToString()
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{
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std::ostringstream info;
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info << "vin: " << vinMasternode.ToString() << " nBlockHeight: " << (int)nBlockHeight << " nRelayType: " << (int)nRelayType << " in " << in.ToString() << " out " << out.ToString();
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return info.str();
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}
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bool CObfuScationRelay::Sign(std::string strSharedKey)
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{
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std::string strMessage = in.ToString() + out.ToString();
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CKey key2;
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CPubKey pubkey2;
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std::string errorMessage = "";
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if (!obfuScationSigner.SetKey(strSharedKey, errorMessage, key2, pubkey2)) {
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LogPrintf("CObfuScationRelay():Sign - ERROR: Invalid shared key: '%s'\n", errorMessage.c_str());
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return false;
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}
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if (!obfuScationSigner.SignMessage(strMessage, errorMessage, vchSig2, key2)) {
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LogPrintf("CObfuScationRelay():Sign - Sign message failed\n");
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return false;
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}
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if (!obfuScationSigner.VerifyMessage(pubkey2, vchSig2, strMessage, errorMessage)) {
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LogPrintf("CObfuScationRelay():Sign - Verify message failed\n");
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return false;
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}
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return true;
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}
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bool CObfuScationRelay::VerifyMessage(std::string strSharedKey)
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{
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std::string strMessage = in.ToString() + out.ToString();
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CKey key2;
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CPubKey pubkey2;
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std::string errorMessage = "";
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if (!obfuScationSigner.SetKey(strSharedKey, errorMessage, key2, pubkey2)) {
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LogPrintf("CObfuScationRelay()::VerifyMessage - ERROR: Invalid shared key: '%s'\n", errorMessage.c_str());
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return false;
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}
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if (!obfuScationSigner.VerifyMessage(pubkey2, vchSig2, strMessage, errorMessage)) {
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LogPrintf("CObfuScationRelay()::VerifyMessage - Verify message failed\n");
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return false;
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}
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return true;
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}
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void CObfuScationRelay::Relay()
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{
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int nCount = std::min(mnodeman.CountEnabled(ActiveProtocol()), 20);
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int nRank1 = (rand() % nCount) + 1;
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int nRank2 = (rand() % nCount) + 1;
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//keep picking another second number till we get one that doesn't match
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while (nRank1 == nRank2)
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nRank2 = (rand() % nCount) + 1;
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//printf("rank 1 - rank2 %d %d \n", nRank1, nRank2);
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//relay this message through 2 separate nodes for redundancy
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RelayThroughNode(nRank1);
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RelayThroughNode(nRank2);
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}
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void CObfuScationRelay::RelayThroughNode(int nRank)
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{
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CMasternode* pmn = mnodeman.GetMasternodeByRank(nRank, nBlockHeight, ActiveProtocol());
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if (pmn != NULL) {
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//printf("RelayThroughNode %s\n", pmn->addr.ToString().c_str());
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CNode* pnode = ConnectNode((CAddress)pmn->addr, NULL, false);
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if (pnode) {
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//printf("Connected\n");
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pnode->PushMessage("dsr", (*this));
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pnode->Release();
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return;
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}
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} else {
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//printf("RelayThroughNode NULL\n");
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}
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}
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