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M-of-N-like sporks (#2288)

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* support set of keys to sign spork

* several addresses support in -sporkkey

* tests for multykey sporks

* command line option -minsporkkeys

* make spork active only after given number of signers

* use signature in spork hash calculation

* test for new and old spork messages interaction

* add multikeyspork.py to integration tests

* change test to have ability to distinguish default spork value

* require min spork keys number to be more than the half of the common spork keys number

* calc current spork value with majority of signers

* set test nodes time in integration test

* extract keyid from signed spork message directly

* change -sporkaddr option syntax to process several addresses

* codestyle fixes

* fix test comments

* codestyle fixes

* simplify CSporkManager::SporkValueIsActive

* Calc signature hash without signature field

* do not restore pubkey ids from cach

* Calc different keyids to check signature because not all sporks can be synced at moment

* codestyle fixes

* Fix CSporkManager::CheckAndRemove to use several keys

* codestyle fixes

* Correct processing of not actual spork6 value with GetSignerKeyID
This commit is contained in:
gladcow 2018-09-30 20:01:33 +03:00 committed by UdjinM6
parent 407baccec4
commit f7ab6c469c
7 changed files with 342 additions and 58 deletions
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1
qa/pull-tester/rpc-tests.py
View File

@ -124,6 +124,7 @@ testScripts = [
'wallet-accounts.py',
'wallet-dump.py',
'listtransactions.py',
'multikeysporks.py',
# vv Tests less than 60s vv
'sendheaders.py', # NOTE: needs dash_hash to pass
'zapwallettxes.py',

151
qa/rpc-tests/multikeysporks.py Executable file
View File

@ -0,0 +1,151 @@
#!/usr/bin/env python3
# Copyright (c) 2018 The Dash Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
from test_framework.mininode import *
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import *
from time import *
'''
multikeysporks.py
Test logic for several signer keys usage for spork broadcast.
We set 5 possible keys for sporks signing and set minimum
required signers to 3. We check 1 and 2 signers can't set the spork
value, any 3 signers can change spork value and other 3 signers
can change it again.
'''
class MultiKeySporkTest(BitcoinTestFramework):
def __init__(self):
super().__init__()
self.num_nodes = 5
self.setup_clean_chain = True
self.is_network_split = False
def setup_network(self):
self.nodes = []
# secret(base58): 931wyuRNVYvhg18Uu9bky5Qg1z4QbxaJ7fefNBzjBPiLRqcd33F
# keyid(hex): 60f0f57f71f0081f1aacdd8432340a33a526f91b
# address(base58): yNsMZhEhYqv14TgdYb1NS2UmNZjE8FSJxa
# secret(base58): 91vbXGMSWKGHom62986XtL1q2mQDA12ngcuUNNe5NfMSj44j7g3
# keyid(hex): 43dff2b09de2f904f688ec14ee6899087b889ad0
# address(base58): yfLSXFfipnkgYioD6L8aUNyfRgEBuJv48h
# secret(base58): 92bxUjPT5AhgXuXJwfGGXqhomY2SdQ55MYjXyx9DZNxCABCSsRH
# keyid(hex): d9aa5fa00cce99101a4044e65dc544d1579890de
# address(base58): ygcG5S2pQz2U1UAaHvU6EznKZW7yapKMA7
# secret(base58): 934yPXiVGf4RCY2qTs2Bt5k3TEtAiAg12sMxCt8yVWbSU7p3fuD
# keyid(hex): 0b23935ce0bea3b997a334f6fa276c9fa17687b2
# address(base58): ycbRQWbovrhQMTuxg9p4LAuW5SCMAKqPrn
# secret(base58): 92Cxwia363Wg2qGF1fE5z4GKi8u7r1nrWQXdtsj2ACZqaDPSihD
# keyid(hex): 1d1098b2b1f759b678a0a7a098637a9b898adcac
# address(base58): yc5TGfcHYoLCrcbVy4umsiDjsYUn39vLui
self.nodes.append(start_node(0, self.options.tmpdir,
["-debug", "-sporkkey=931wyuRNVYvhg18Uu9bky5Qg1z4QbxaJ7fefNBzjBPiLRqcd33F",
"-sporkaddr=ygcG5S2pQz2U1UAaHvU6EznKZW7yapKMA7",
"-sporkaddr=yfLSXFfipnkgYioD6L8aUNyfRgEBuJv48h",
"-sporkaddr=yNsMZhEhYqv14TgdYb1NS2UmNZjE8FSJxa",
"-sporkaddr=ycbRQWbovrhQMTuxg9p4LAuW5SCMAKqPrn",
"-sporkaddr=yc5TGfcHYoLCrcbVy4umsiDjsYUn39vLui",
"-minsporkkeys=3"]))
self.nodes.append(start_node(1, self.options.tmpdir,
["-debug", "-sporkkey=91vbXGMSWKGHom62986XtL1q2mQDA12ngcuUNNe5NfMSj44j7g3",
"-sporkaddr=ygcG5S2pQz2U1UAaHvU6EznKZW7yapKMA7",
"-sporkaddr=yfLSXFfipnkgYioD6L8aUNyfRgEBuJv48h",
"-sporkaddr=yNsMZhEhYqv14TgdYb1NS2UmNZjE8FSJxa",
"-sporkaddr=ycbRQWbovrhQMTuxg9p4LAuW5SCMAKqPrn",
"-sporkaddr=yc5TGfcHYoLCrcbVy4umsiDjsYUn39vLui",
"-minsporkkeys=3"]))
self.nodes.append(start_node(2, self.options.tmpdir,
["-debug", "-sporkkey=92bxUjPT5AhgXuXJwfGGXqhomY2SdQ55MYjXyx9DZNxCABCSsRH",
"-sporkaddr=ygcG5S2pQz2U1UAaHvU6EznKZW7yapKMA7",
"-sporkaddr=yfLSXFfipnkgYioD6L8aUNyfRgEBuJv48h",
"-sporkaddr=yNsMZhEhYqv14TgdYb1NS2UmNZjE8FSJxa",
"-sporkaddr=ycbRQWbovrhQMTuxg9p4LAuW5SCMAKqPrn",
"-sporkaddr=yc5TGfcHYoLCrcbVy4umsiDjsYUn39vLui",
"-minsporkkeys=3"]))
self.nodes.append(start_node(3, self.options.tmpdir,
["-debug", "-sporkkey=934yPXiVGf4RCY2qTs2Bt5k3TEtAiAg12sMxCt8yVWbSU7p3fuD",
"-sporkaddr=ygcG5S2pQz2U1UAaHvU6EznKZW7yapKMA7",
"-sporkaddr=yfLSXFfipnkgYioD6L8aUNyfRgEBuJv48h",
"-sporkaddr=yNsMZhEhYqv14TgdYb1NS2UmNZjE8FSJxa",
"-sporkaddr=ycbRQWbovrhQMTuxg9p4LAuW5SCMAKqPrn",
"-sporkaddr=yc5TGfcHYoLCrcbVy4umsiDjsYUn39vLui",
"-minsporkkeys=3"]))
self.nodes.append(start_node(4, self.options.tmpdir,
["-debug", "-sporkkey=92Cxwia363Wg2qGF1fE5z4GKi8u7r1nrWQXdtsj2ACZqaDPSihD",
"-sporkaddr=ygcG5S2pQz2U1UAaHvU6EznKZW7yapKMA7",
"-sporkaddr=yfLSXFfipnkgYioD6L8aUNyfRgEBuJv48h",
"-sporkaddr=yNsMZhEhYqv14TgdYb1NS2UmNZjE8FSJxa",
"-sporkaddr=ycbRQWbovrhQMTuxg9p4LAuW5SCMAKqPrn",
"-sporkaddr=yc5TGfcHYoLCrcbVy4umsiDjsYUn39vLui",
"-minsporkkeys=3"]))
# connect nodes at start
for i in range(0, 5):
for j in range(i, 5):
connect_nodes(self.nodes[i], j)
def get_test_spork_state(self, node):
info = node.spork('show')
# use InstantSend spork for tests
return info['SPORK_2_INSTANTSEND_ENABLED']
def set_test_spork_state(self, node, value):
# use InstantSend spork for tests
node.spork('SPORK_2_INSTANTSEND_ENABLED', value)
def wait_for_test_spork_state(self, node, value):
start = time()
got_state = False
while True:
if self.get_test_spork_state(node) == value:
got_state = True
break
if time() > start + 10:
break
sleep(0.1)
return got_state
def run_test(self):
# check test spork default state
for node in self.nodes:
assert(self.get_test_spork_state(node) == 0)
set_mocktime(get_mocktime() + 1)
set_node_times(self.nodes, get_mocktime())
# first and second signers set spork value
self.set_test_spork_state(self.nodes[0], 1)
self.set_test_spork_state(self.nodes[1], 1)
# spork change requires at least 3 signers
for node in self.nodes:
assert(not self.wait_for_test_spork_state(node, 1))
# third signer set spork value
self.set_test_spork_state(self.nodes[2], 1)
# now spork state is changed
for node in self.nodes:
assert(self.wait_for_test_spork_state(node, 1))
set_mocktime(get_mocktime() + 1)
set_node_times(self.nodes, get_mocktime())
# now set the spork again with other signers to test
# old and new spork messages interaction
self.set_test_spork_state(self.nodes[2], 2)
self.set_test_spork_state(self.nodes[3], 2)
self.set_test_spork_state(self.nodes[4], 2)
for node in self.nodes:
assert(self.wait_for_test_spork_state(node, 2))
if __name__ == '__main__':
MultiKeySporkTest().main()

12
src/chainparams.cpp
View File

@ -237,7 +237,8 @@ public:
nPoolMaxTransactions = 3;
nFulfilledRequestExpireTime = 60*60; // fulfilled requests expire in 1 hour
strSporkAddress = "Xgtyuk76vhuFW2iT7UAiHgNdWXCf3J34wh";
vSporkAddresses = {"Xgtyuk76vhuFW2iT7UAiHgNdWXCf3J34wh"};
nMinSporkKeys = 1;
checkpointData = (CCheckpointData) {
boost::assign::map_list_of
@ -393,7 +394,8 @@ public:
nPoolMaxTransactions = 3;
nFulfilledRequestExpireTime = 5*60; // fulfilled requests expire in 5 minutes
strSporkAddress = "yjPtiKh2uwk3bDutTEA2q9mCtXyiZRWn55";
vSporkAddresses = {"yjPtiKh2uwk3bDutTEA2q9mCtXyiZRWn55"};
nMinSporkKeys = 1;
checkpointData = (CCheckpointData) {
boost::assign::map_list_of
@ -537,7 +539,8 @@ public:
nPoolMaxTransactions = 3;
nFulfilledRequestExpireTime = 5*60; // fulfilled requests expire in 5 minutes
strSporkAddress = "yjPtiKh2uwk3bDutTEA2q9mCtXyiZRWn55";
vSporkAddresses = {"yjPtiKh2uwk3bDutTEA2q9mCtXyiZRWn55"};
nMinSporkKeys = 1;
checkpointData = (CCheckpointData) {
boost::assign::map_list_of
@ -643,7 +646,8 @@ public:
nFulfilledRequestExpireTime = 5*60; // fulfilled requests expire in 5 minutes
// privKey: cP4EKFyJsHT39LDqgdcB43Y3YXjNyjb5Fuas1GQSeAtjnZWmZEQK
strSporkAddress = "yj949n1UH6fDhw6HtVE5VMj2iSTaSWBMcW";
vSporkAddresses = {"yj949n1UH6fDhw6HtVE5VMj2iSTaSWBMcW"};
nMinSporkKeys = 1;
checkpointData = (CCheckpointData){
boost::assign::map_list_of

6
src/chainparams.h
View File

@ -88,7 +88,8 @@ public:
const ChainTxData& TxData() const { return chainTxData; }
int PoolMaxTransactions() const { return nPoolMaxTransactions; }
int FulfilledRequestExpireTime() const { return nFulfilledRequestExpireTime; }
const std::string& SporkAddress() const { return strSporkAddress; }
const std::vector<std::string>& SporkAddresses() const { return vSporkAddresses; }
int MinSporkKeys() const { return nMinSporkKeys; }
protected:
CChainParams() {}
@ -116,7 +117,8 @@ protected:
ChainTxData chainTxData;
int nPoolMaxTransactions;
int nFulfilledRequestExpireTime;
std::string strSporkAddress;
std::vector<std::string> vSporkAddresses;
int nMinSporkKeys;
};
/**

26
src/init.cpp
View File

@ -570,6 +570,7 @@ std::string HelpMessage(HelpMessageMode mode)
AppendParamsHelpMessages(strUsage, showDebug);
strUsage += HelpMessageOpt("-litemode=<n>", strprintf(_("Disable all Dash specific functionality (Masternodes, PrivateSend, InstantSend, Governance) (0-1, default: %u)"), 0));
strUsage += HelpMessageOpt("-sporkaddr=<hex>", strprintf(_("Override spork address. Only useful for regtest and devnet. Using this on mainnet or testnet will ban you.")));
strUsage += HelpMessageOpt("-minsporkkeys=<n>", strprintf(_("Overrides minimum spork signers to change spork value. Only useful for regtest and devnet. Using this on mainnet or testnet will ban you.")));
strUsage += HelpMessageGroup(_("Masternode options:"));
strUsage += HelpMessageOpt("-masternode=<n>", strprintf(_("Enable the client to act as a masternode (0-1, default: %u)"), 0));
@ -1398,13 +1399,28 @@ bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler)
threadGroup.create_thread(&ThreadScriptCheck);
}
if (!sporkManager.SetSporkAddress(GetArg("-sporkaddr", Params().SporkAddress())))
return InitError(_("Invalid spork address specified with -sporkaddr"));
std::vector<std::string> vSporkAddresses;
if (mapMultiArgs.count("-sporkaddr")) {
vSporkAddresses = mapMultiArgs.at("-sporkaddr");
} else {
vSporkAddresses = Params().SporkAddresses();
}
for (const auto& address: vSporkAddresses) {
if (!sporkManager.SetSporkAddress(address)) {
return InitError(_("Invalid spork address specified with -sporkaddr"));
}
}
if (IsArgSet("-sporkkey")) // spork priv key
{
if (!sporkManager.SetPrivKey(GetArg("-sporkkey", "")))
int minsporkkeys = GetArg("-minsporkkeys", Params().MinSporkKeys());
if (!sporkManager.SetMinSporkKeys(minsporkkeys)) {
return InitError(_("Invalid minimum number of spork signers specified with -minsporkkeys"));
}
if (IsArgSet("-sporkkey")) { // spork priv key
if (!sporkManager.SetPrivKey(GetArg("-sporkkey", ""))) {
return InitError(_("Unable to sign spork message, wrong key?"));
}
}
// Start the lightweight task scheduler thread

188
src/spork.cpp
View File

@ -15,7 +15,7 @@
CSporkManager sporkManager;
const std::string CSporkManager::SERIALIZATION_VERSION_STRING = "CMasternodeMan-Version-1";
const std::string CSporkManager::SERIALIZATION_VERSION_STRING = "CMasternodeMan-Version-2";
std::map<int, int64_t> mapSporkDefaults = {
{SPORK_2_INSTANTSEND_ENABLED, 0}, // ON
@ -31,6 +31,27 @@ std::map<int, int64_t> mapSporkDefaults = {
{SPORK_16_INSTANTSEND_AUTOLOCKS, 4070908800ULL}, // OFF
};
bool CSporkManager::SporkValueIsActive(int nSporkID, int64_t &nActiveValueRet) const
{
LOCK(cs);
if (!mapSporksActive.count(nSporkID)) return false;
// calc how many values we have and how many signers vote for every value
std::map<int64_t, int> mapValueCounts;
for (const auto& pair: mapSporksActive.at(nSporkID)) {
mapValueCounts[pair.second.nValue]++;
if (mapValueCounts.at(pair.second.nValue) >= nMinSporkKeys) {
// nMinSporkKeys is always more than the half of the max spork keys number,
// so there is only one such value and we can stop here
nActiveValueRet = pair.second.nValue;
return true;
}
}
return false;
}
void CSporkManager::Clear()
{
LOCK(cs);
@ -43,29 +64,47 @@ void CSporkManager::Clear()
void CSporkManager::CheckAndRemove()
{
LOCK(cs);
bool fSporkAddressIsSet = !sporkPubKeyID.IsNull();
bool fSporkAddressIsSet = !setSporkPubKeyIDs.empty();
assert(fSporkAddressIsSet);
auto itActive = mapSporksActive.begin();
while (itActive != mapSporksActive.end()) {
if (!itActive->second.CheckSignature(sporkPubKeyID, false)) {
if (!itActive->second.CheckSignature(sporkPubKeyID, true)) {
mapSporksByHash.erase(itActive->second.GetHash());
mapSporksActive.erase(itActive++);
auto itSignerPair = itActive->second.begin();
while (itSignerPair != itActive->second.end()) {
if (setSporkPubKeyIDs.find(itSignerPair->first) == setSporkPubKeyIDs.end()) {
mapSporksByHash.erase(itSignerPair->second.GetHash());
continue;
}
if (!itSignerPair->second.CheckSignature(itSignerPair->first, false)) {
if (!itSignerPair->second.CheckSignature(itSignerPair->first, true)) {
mapSporksByHash.erase(itSignerPair->second.GetHash());
itActive->second.erase(itSignerPair++);
continue;
}
}
++itSignerPair;
}
if (itActive->second.empty()) {
mapSporksActive.erase(itActive++);
continue;
}
++itActive;
}
auto itByHash = mapSporksByHash.begin();
while (itByHash != mapSporksByHash.end()) {
if (!itByHash->second.CheckSignature(sporkPubKeyID, false)) {
if (!itByHash->second.CheckSignature(sporkPubKeyID, true)) {
mapSporksActive.erase(itByHash->second.nSporkID);
mapSporksByHash.erase(itByHash++);
continue;
bool found = false;
for (const auto& signer: setSporkPubKeyIDs) {
if (itByHash->second.CheckSignature(signer, false) ||
itByHash->second.CheckSignature(signer, true)) {
found = true;
break;
}
}
if (!found) {
mapSporksByHash.erase(itByHash++);
continue;
}
++itByHash;
}
}
@ -88,41 +127,61 @@ void CSporkManager::ProcessSpork(CNode* pfrom, const std::string& strCommand, CD
if(!chainActive.Tip()) return;
strLogMsg = strprintf("SPORK -- hash: %s id: %d value: %10d bestHeight: %d peer=%d", hash.ToString(), spork.nSporkID, spork.nValue, chainActive.Height(), pfrom->id);
}
CKeyID keyIDSigner;
bool fSpork6IsActive = IsSporkActive(SPORK_6_NEW_SIGS);
if (!spork.GetSignerKeyID(keyIDSigner, fSpork6IsActive)
|| !setSporkPubKeyIDs.count(keyIDSigner)) {
// Note: unlike for other messages we have to check for new format even with SPORK_6_NEW_SIGS
// inactive because SPORK_6_NEW_SIGS default is OFF and it is not the first spork to sync
// (and even if it would, spork order can't be guaranteed anyway).
if (!spork.GetSignerKeyID(keyIDSigner, !fSpork6IsActive)
|| !setSporkPubKeyIDs.count(keyIDSigner)) {
LOCK(cs_main);
LogPrintf("CSporkManager::ProcessSpork -- ERROR: invalid signature\n");
Misbehaving(pfrom->GetId(), 100);
return;
}
}
{
LOCK(cs); // make sure to not lock this together with cs_main
if (mapSporksActive.count(spork.nSporkID)) {
if (mapSporksActive[spork.nSporkID].nTimeSigned >= spork.nTimeSigned) {
LogPrint("spork", "%s seen\n", strLogMsg);
return;
if (mapSporksActive[spork.nSporkID].count(keyIDSigner)) {
if (mapSporksActive[spork.nSporkID][keyIDSigner].nTimeSigned >= spork.nTimeSigned) {
LogPrint("spork", "%s seen\n", strLogMsg);
return;
} else {
LogPrintf("%s updated\n", strLogMsg);
}
} else {
LogPrintf("%s updated\n", strLogMsg);
LogPrintf("%s new signer\n", strLogMsg);
}
} else {
LogPrintf("%s new\n", strLogMsg);
}
}
if(!spork.CheckSignature(sporkPubKeyID, IsSporkActive(SPORK_6_NEW_SIGS))) {
LOCK(cs_main);
LogPrintf("CSporkManager::ProcessSpork -- ERROR: invalid signature\n");
Misbehaving(pfrom->GetId(), 100);
return;
}
{
LOCK(cs); // make sure to not lock this together with cs_main
mapSporksByHash[hash] = spork;
mapSporksActive[spork.nSporkID] = spork;
mapSporksActive[spork.nSporkID][keyIDSigner] = spork;
}
spork.Relay(connman);
//does a task if needed
ExecuteSpork(spork.nSporkID, spork.nValue);
int64_t nActiveValue = 0;
if (SporkValueIsActive(spork.nSporkID, nActiveValue)) {
ExecuteSpork(spork.nSporkID, nActiveValue);
}
} else if (strCommand == NetMsgType::GETSPORKS) {
LOCK(cs); // make sure to not lock this together with cs_main
for (const auto& pair : mapSporksActive) {
connman.PushMessage(pfrom, CNetMsgMaker(pfrom->GetSendVersion()).Make(NetMsgType::SPORK, pair.second));
for (const auto& signerSporkPair: pair.second) {
connman.PushMessage(pfrom, CNetMsgMaker(pfrom->GetSendVersion()).Make(NetMsgType::SPORK, signerSporkPair.second));
}
}
}
@ -161,11 +220,17 @@ bool CSporkManager::UpdateSpork(int nSporkID, int64_t nValue, CConnman& connman)
{
CSporkMessage spork = CSporkMessage(nSporkID, nValue, GetAdjustedTime());
if(spork.Sign(sporkPrivKey, IsSporkActive(SPORK_6_NEW_SIGS))) {
bool fSpork6IsActive = IsSporkActive(SPORK_6_NEW_SIGS);
if(spork.Sign(sporkPrivKey, fSpork6IsActive)) {
CKeyID keyIDSigner;
if (!spork.GetSignerKeyID(keyIDSigner, fSpork6IsActive) || !setSporkPubKeyIDs.count(keyIDSigner)) {
LogPrintf("CSporkManager::UpdateSpork: failed to find keyid for private key\n");
return false;
}
spork.Relay(connman);
LOCK(cs);
mapSporksByHash[spork.GetHash()] = spork;
mapSporksActive[nSporkID] = spork;
mapSporksActive[nSporkID][keyIDSigner] = spork;
return true;
}
@ -176,26 +241,29 @@ bool CSporkManager::UpdateSpork(int nSporkID, int64_t nValue, CConnman& connman)
bool CSporkManager::IsSporkActive(int nSporkID)
{
LOCK(cs);
int64_t r = -1;
int64_t nSporkValue = -1;
if(mapSporksActive.count(nSporkID)){
r = mapSporksActive[nSporkID].nValue;
} else if (mapSporkDefaults.count(nSporkID)) {
r = mapSporkDefaults[nSporkID];
} else {
LogPrint("spork", "CSporkManager::IsSporkActive -- Unknown Spork ID %d\n", nSporkID);
r = 4070908800ULL; // 2099-1-1 i.e. off by default
if (SporkValueIsActive(nSporkID, nSporkValue)) {
return nSporkValue < GetAdjustedTime();
}
return r < GetAdjustedTime();
if (mapSporkDefaults.count(nSporkID)) {
return mapSporkDefaults[nSporkID] < GetAdjustedTime();
}
LogPrint("spork", "CSporkManager::IsSporkActive -- Unknown Spork ID %d\n", nSporkID);
return false;
}
// grab the value of the spork on the network, or the default
int64_t CSporkManager::GetSporkValue(int nSporkID)
{
LOCK(cs);
if (mapSporksActive.count(nSporkID))
return mapSporksActive[nSporkID].nValue;
int64_t nSporkValue = -1;
if (SporkValueIsActive(nSporkID, nSporkValue)) {
return nSporkValue;
}
if (mapSporkDefaults.count(nSporkID)) {
return mapSporkDefaults[nSporkID];
@ -260,10 +328,23 @@ bool CSporkManager::GetSporkByHash(const uint256& hash, CSporkMessage &sporkRet)
bool CSporkManager::SetSporkAddress(const std::string& strAddress) {
LOCK(cs);
CBitcoinAddress address(strAddress);
if (!address.IsValid() || !address.GetKeyID(sporkPubKeyID)) {
CKeyID keyid;
if (!address.IsValid() || !address.GetKeyID(keyid)) {
LogPrintf("CSporkManager::SetSporkAddress -- Failed to parse spork address\n");
return false;
}
setSporkPubKeyIDs.insert(keyid);
return true;
}
bool CSporkManager::SetMinSporkKeys(int minSporkKeys)
{
int maxKeysNumber = setSporkPubKeyIDs.size();
if ((minSporkKeys <= maxKeysNumber / 2) || (minSporkKeys > maxKeysNumber)) {
LogPrintf("CSporkManager::SetMinSporkKeys -- Invalid min spork signers number: %d\n", minSporkKeys);
return false;
}
nMinSporkKeys = minSporkKeys;
return true;
}
@ -276,8 +357,8 @@ bool CSporkManager::SetPrivKey(const std::string& strPrivKey)
return false;
}
if (pubKey.GetID() != sporkPubKeyID) {
LogPrintf("CSporkManager::SetPrivKey -- New private key does not belong to spork address\n");
if (setSporkPubKeyIDs.find(pubKey.GetID()) == setSporkPubKeyIDs.end()) {
LogPrintf("CSporkManager::SetPrivKey -- New private key does not belong to spork addresses\n");
return false;
}
@ -309,7 +390,11 @@ uint256 CSporkMessage::GetHash() const
uint256 CSporkMessage::GetSignatureHash() const
{
return GetHash();
CHashWriter s(SER_GETHASH, 0);
s << nSporkID;
s << nValue;
s << nTimeSigned;
return s.GetHash();
}
bool CSporkMessage::Sign(const CKey& key, bool fSporkSixActive)
@ -382,6 +467,27 @@ bool CSporkMessage::CheckSignature(const CKeyID& pubKeyId, bool fSporkSixActive)
return true;
}
bool CSporkMessage::GetSignerKeyID(CKeyID &retKeyidSporkSigner, bool fSporkSixActive)
{
CPubKey pubkeyFromSig;
if (fSporkSixActive) {
if (!pubkeyFromSig.RecoverCompact(GetSignatureHash(), vchSig)) {
return false;
}
} else {
std::string strMessage = std::to_string(nSporkID) + std::to_string(nValue) + std::to_string(nTimeSigned);
CHashWriter ss(SER_GETHASH, 0);
ss << strMessageMagic;
ss << strMessage;
if (!pubkeyFromSig.RecoverCompact(ss.GetHash(), vchSig)) {
return false;
}
}
retKeyidSporkSigner = pubkeyFromSig.GetID();
return true;
}
void CSporkMessage::Relay(CConnman& connman)
{
CInv inv(MSG_SPORK, GetHash());

16
src/spork.h
View File

@ -70,9 +70,7 @@ public:
READWRITE(nSporkID);
READWRITE(nValue);
READWRITE(nTimeSigned);
if (!(s.GetType() & SER_GETHASH)) {
READWRITE(vchSig);
}
READWRITE(vchSig);
}
uint256 GetHash() const;
@ -80,6 +78,7 @@ public:
bool Sign(const CKey& key, bool fSporkSixActive);
bool CheckSignature(const CKeyID& pubKeyId, bool fSporkSixActive) const;
bool GetSignerKeyID(CKeyID& retKeyidSporkSigner, bool fSporkSixActive);
void Relay(CConnman& connman);
};
@ -91,11 +90,13 @@ private:
mutable CCriticalSection cs;
std::map<uint256, CSporkMessage> mapSporksByHash;
std::map<int, CSporkMessage> mapSporksActive;
std::map<int, std::map<CKeyID, CSporkMessage> > mapSporksActive;
CKeyID sporkPubKeyID;
std::set<CKeyID> setSporkPubKeyIDs;
int nMinSporkKeys;
CKey sporkPrivKey;
bool SporkValueIsActive(int nSporkID, int64_t& nActiveValueRet) const;
public:
CSporkManager() {}
@ -114,7 +115,9 @@ public:
strVersion = SERIALIZATION_VERSION_STRING;
READWRITE(strVersion);
}
READWRITE(sporkPubKeyID);
// we don't serialize pubkey ids because pubkeys should be
// hardcoded or be setted with cmdline or options, should
// not reuse pubkeys from previous dashd run
READWRITE(mapSporksByHash);
READWRITE(mapSporksActive);
// we don't serialize private key to prevent its leakage
@ -135,6 +138,7 @@ public:
bool GetSporkByHash(const uint256& hash, CSporkMessage &sporkRet);
bool SetSporkAddress(const std::string& strAddress);
bool SetMinSporkKeys(int minSporkKeys);
bool SetPrivKey(const std::string& strPrivKey);
std::string ToString() const;