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Removed non-denomational inputs (UdjinM6)

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Exact amounts are now allocated directly to denominated
funds then submitted to the pool. This improves anonymity
by never having non-denomination inputs enter or exit the pool.
Randomness has also been added to the amount of each session to
improve anonymity.
This commit is contained in:
Evan Duffield 2015-01-19 14:25:03 -07:00
parent b7f436bb5c
commit 2737edbbf3
7 changed files with 40 additions and 31 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
configure.ac
View File

@ -3,7 +3,7 @@ AC_PREREQ([2.60])
define(_CLIENT_VERSION_MAJOR, 0)
define(_CLIENT_VERSION_MINOR, 11)
define(_CLIENT_VERSION_REVISION, 0)
define(_CLIENT_VERSION_BUILD, 8)
define(_CLIENT_VERSION_BUILD, 9)
define(_CLIENT_VERSION_IS_RELEASE, true)
define(_COPYRIGHT_YEAR, 2015)
AC_INIT([Darkcoin Core],[_CLIENT_VERSION_MAJOR._CLIENT_VERSION_MINOR._CLIENT_VERSION_REVISION],[info@darkcoin.io],[darkcoin])

2
src/clientversion.h
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@ -12,7 +12,7 @@
#define CLIENT_VERSION_MAJOR 0
#define CLIENT_VERSION_MINOR 11
#define CLIENT_VERSION_REVISION 0
#define CLIENT_VERSION_BUILD 8
#define CLIENT_VERSION_BUILD 9

15
src/darksend.cpp
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@ -91,6 +91,7 @@ void ProcessMessageDarksend(CNode* pfrom, std::string& strCommand, CDataStream&
}
else if (strCommand == "dsa") { //DarkSend Acceptable
if (pfrom->nVersion < darkSendPool.MIN_PEER_PROTO_VERSION) {
std::string strError = "incompatible version";
LogPrintf("dsa -- incompatible version! \n");
@ -140,6 +141,7 @@ void ProcessMessageDarksend(CNode* pfrom, std::string& strCommand, CDataStream&
return;
}
} else if (strCommand == "dsq") { //DarkSend Queue
if (pfrom->nVersion < darkSendPool.MIN_PEER_PROTO_VERSION) {
return;
}
@ -147,6 +149,7 @@ void ProcessMessageDarksend(CNode* pfrom, std::string& strCommand, CDataStream&
CDarksendQueue dsq;
vRecv >> dsq;
CService addr;
if(!dsq.GetAddress(addr)) return;
if(!dsq.CheckSignature()) return;
@ -156,7 +159,6 @@ void ProcessMessageDarksend(CNode* pfrom, std::string& strCommand, CDataStream&
int mn = GetMasternodeByVin(dsq.vin);
if(mn == -1) return;
// if the queue is ready, submit if we can
if(dsq.ready) {
if((CNetAddr)darkSendPool.submittedToMasternode != (CNetAddr)addr){
@ -324,6 +326,7 @@ void ProcessMessageDarksend(CNode* pfrom, std::string& strCommand, CDataStream&
}
else if (strCommand == "dssu") { //DarkSend status update
if (pfrom->nVersion < darkSendPool.MIN_PEER_PROTO_VERSION) {
return;
}
@ -1527,6 +1530,9 @@ bool CDarkSendPool::DoAutomaticDenominating(bool fDryRun, bool ready)
if(!dsq.GetProtocolVersion(protocolVersion)) continue;
if(protocolVersion < MIN_PEER_PROTO_VERSION) continue;
//non-denom's are incompatible
if((dsq.nDenom & (1 << 4))) continue;
//don't reuse masternodes
BOOST_FOREACH(CTxIn usedVin, vecMasternodesUsed){
if(dsq.vin == usedVin) {
@ -1537,7 +1543,7 @@ bool CDarkSendPool::DoAutomaticDenominating(bool fDryRun, bool ready)
// Try to match their denominations if possible
if (!pwalletMain->SelectCoinsByDenominations(dsq.nDenom, nValueMin, balanceNeedsAnonymized, vCoins, nValueIn, 0, nDarksendRounds)){
// if (!pwalletMain->SelectCoinsByDenominations(dsq.nDenom, nValueMin, balanceNeedsAnonymized, vCoins, nValueIn, -2, 0)){
LogPrintf("DoAutomaticDenominating - Couldn't match denominations\n");
LogPrintf("DoAutomaticDenominating - Couldn't match denominations %d\n", dsq.nDenom);
continue;
// }
}
@ -1545,6 +1551,7 @@ bool CDarkSendPool::DoAutomaticDenominating(bool fDryRun, bool ready)
// connect to masternode and submit the queue request
if(ConnectNode((CAddress)addr, NULL, true)){
submittedToMasternode = addr;
LOCK(cs_vNodes);
BOOST_FOREACH(CNode* pnode, vNodes)
{
@ -1602,6 +1609,7 @@ bool CDarkSendPool::DoAutomaticDenominating(bool fDryRun, bool ready)
LogPrintf("DoAutomaticDenominating -- attempt %d connection to masternode %s\n", sessionTries, vecMasternodes[i].addr.ToString().c_str());
if(ConnectNode((CAddress)vecMasternodes[i].addr, NULL, true)){
submittedToMasternode = vecMasternodes[i].addr;
LOCK(cs_vNodes);
BOOST_FOREACH(CNode* pnode, vNodes)
{
@ -1947,6 +1955,7 @@ void CDarkSendPool::GetDenominationsToString(int nDenom, std::string& strDenom){
// bit 1 - 10DRK+1
// bit 2 - 1DRK+1
// bit 3 - .1DRK+1
// bit 3 - non-denom
strDenom = "";
@ -1970,7 +1979,6 @@ void CDarkSendPool::GetDenominationsToString(int nDenom, std::string& strDenom){
if(strDenom.size() > 0) strDenom += "+";
strDenom += "0.1";
}
}
// return a bitshifted integer representing the denominations in this list
@ -2010,6 +2018,7 @@ int CDarkSendPool::GetDenominations(const std::vector<CTxOut>& vout){
return denom;
}
int CDarkSendPool::GetDenominationsByAmounts(std::vector<int64_t>& vecAmount){
CScript e = CScript();
std::vector<CTxOut> vout1;

2
src/darksend.h
View File

@ -223,7 +223,7 @@ class CDarksendSession
class CDarkSendPool
{
public:
static const int MIN_PEER_PROTO_VERSION = 70052;
static const int MIN_PEER_PROTO_VERSION = 70053;
// clients entries
std::vector<CDarkSendEntry> myEntries;

41
src/qt/overviewpage.cpp
View File

@ -344,29 +344,6 @@ void OverviewPage::darkSendStatus()
// Balance and number of transactions might have changed
darkSendPool.cachedNumBlocks = nBestHeight;
if (pwalletMain->GetBalance() - pwalletMain->GetAnonymizedBalance() > 2*COIN){
if (walletModel->getEncryptionStatus() != WalletModel::Unencrypted){
if((nAnonymizeDarkcoinAmount*COIN)-pwalletMain->GetAnonymizedBalance() > 1.1*COIN &&
walletModel->getEncryptionStatus() == WalletModel::Locked){
WalletModel::UnlockContext ctx(walletModel->requestUnlock(false));
if(!ctx.isValid()){
//unlock was cancelled
fEnableDarksend = false;
darkSendPool.cachedNumBlocks = 0;
LogPrintf("Wallet is locked and user declined to unlock. Disabling Darksend.\n");
}
}
if((nAnonymizeDarkcoinAmount*COIN)-pwalletMain->GetAnonymizedBalance() <= 1.1*COIN &&
walletModel->getEncryptionStatus() == WalletModel::Unlocked &&
darkSendPool.GetMyTransactionCount() == 0){
LogPrintf("Darksend is complete, locking wallet.\n");
walletModel->setWalletLocked(true);
}
}
}
/* *******************************************************/
ui->darksendEnabled->setText("Enabled");
@ -472,6 +449,24 @@ void OverviewPage::toggleDarksend(){
QMessageBox::Ok, QMessageBox::Ok);
return;
}
if (pwalletMain->GetBalance() - pwalletMain->GetAnonymizedBalance() > 2*COIN){
if (walletModel->getEncryptionStatus() != WalletModel::Unencrypted){
if((nAnonymizeDarkcoinAmount*COIN)-pwalletMain->GetAnonymizedBalance() > 1.1*COIN &&
walletModel->getEncryptionStatus() == WalletModel::Locked){
WalletModel::UnlockContext ctx(walletModel->requestUnlock(false));
if(!ctx.isValid()){
//unlock was cancelled
fEnableDarksend = false;
darkSendPool.cachedNumBlocks = 0;
LogPrintf("Wallet is locked and user declined to unlock. Disabling Darksend.\n");
}
}
}
}
}
darkSendPool.cachedNumBlocks = 0;

2
src/version.h
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@ -27,7 +27,7 @@ extern const std::string CLIENT_DATE;
// network protocol versioning
//
static const int PROTOCOL_VERSION = 70052;
static const int PROTOCOL_VERSION = 70053;
// intial proto version, to be increased after version/verack negotiation
static const int INIT_PROTO_VERSION = 209;

5
src/wallet.cpp
View File

@ -1554,6 +1554,11 @@ bool CWallet::SelectCoinsByDenominations(int nDenom, int64_t nValueMin, int64_t
if(rounds < nDarksendRoundsMin) continue;
if(fFound100 && fFound10 && fFound1 && fFoundDot1){ //if fulfilled
//we can return this for submission
if(nValueRet >= nValueMin){
//random reduce the max amount we'll submit for anonymity
nValueMax -= (rand() % (nValueMax/5));
}
//Denomination criterion has been met, we can take any matching denominations
if((nDenom & (1 << 0)) && out.tx->vout[out.i].nValue == ((100*COIN)+1)) {fAccepted = true;}
else if((nDenom & (1 << 1)) && out.tx->vout[out.i].nValue == ((10*COIN)+1)) {fAccepted = true;}