// Copyright (c) 2009-2012 The Bitcoin developers
-// Copyright (c) 2011-2012 The PPCoin developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
namespace Checkpoints
{
- typedef std::map<int, uint256> MapCheckpoints; // hardened checkpoints
+ typedef std::map<int, uint256> MapCheckpoints;
//
// What makes a good checkpoint block?
//
static MapCheckpoints mapCheckpoints =
boost::assign::map_list_of
- ( 0, hashGenesisBlockOfficial )
- ; // ppcoin: no checkpoint yet; to be created in future releases
+ ( 0, hashGenesisBlock )
+ ( 6000, uint256("0x000000000945e3c9d8e15df834e802521eb79f9ceb4191a27bdfadad4b777f4a"))
+ ( 9690, uint256("0x00000000026561450859c46868099e0df6068a538f038cb18988fd8d47dcdaf5"))
+ ( 13560, uint256("0xa1591a0fcbf11f282d671581edb9f0aadcd06fee69761081e0a3245914c13729"))
+ ( 14189, uint256("0x00000000020f76474d2522b19c7bfafc43ba6ecbabae54293bcd9546159c8c1d"))
+ ( 19600, uint256("0x252ae08d6df4bc7220c1dcdaed7b8a6e78bab05a60173511e8f565a3a38ce3c3"))
+ ;
+
+ static MapCheckpoints mapCheckpointsTestnet =
+ boost::assign::map_list_of
+ ( 0, hashGenesisBlockTestNet )
+ ;
bool CheckHardened(int nHeight, const uint256& hash)
{
- if (fTestNet) return true; // Testnet has no checkpoints
+ MapCheckpoints& checkpoints = (fTestNet ? mapCheckpointsTestnet : mapCheckpoints);
- MapCheckpoints::const_iterator i = mapCheckpoints.find(nHeight);
- if (i == mapCheckpoints.end()) return true;
+ MapCheckpoints::const_iterator i = checkpoints.find(nHeight);
+ if (i == checkpoints.end()) return true;
return hash == i->second;
}
int GetTotalBlocksEstimate()
{
- if (fTestNet) return 0;
+ MapCheckpoints& checkpoints = (fTestNet ? mapCheckpointsTestnet : mapCheckpoints);
- return mapCheckpoints.rbegin()->first;
+ return checkpoints.rbegin()->first;
}
CBlockIndex* GetLastCheckpoint(const std::map<uint256, CBlockIndex*>& mapBlockIndex)
{
- if (fTestNet) {
- std::map<uint256, CBlockIndex*>::const_iterator t = mapBlockIndex.find(hashGenesisBlock);
- if (t != mapBlockIndex.end())
- return t->second;
- return NULL;
- }
+ MapCheckpoints& checkpoints = (fTestNet ? mapCheckpointsTestnet : mapCheckpoints);
- BOOST_REVERSE_FOREACH(const MapCheckpoints::value_type& i, mapCheckpoints)
+ BOOST_REVERSE_FOREACH(const MapCheckpoints::value_type& i, checkpoints)
{
const uint256& hash = i.second;
std::map<uint256, CBlockIndex*>::const_iterator t = mapBlockIndex.find(hash);
// Select the last proof-of-work block
const CBlockIndex *pindex = GetLastBlockIndex(pindexBest, false);
// Search forward for a block within max span and maturity window
- while (pindex->pnext && (pindex->GetBlockTime() + CHECKPOINT_MAX_SPAN <= pindexBest->GetBlockTime() || pindex->nHeight + nCoinbaseMaturity - 20 <= pindexBest->nHeight))
+ while (pindex->pnext && (pindex->GetBlockTime() + CHECKPOINT_MAX_SPAN <= pindexBest->GetBlockTime() || pindex->nHeight + std::min(6, nCoinbaseMaturity - 20) <= pindexBest->nHeight))
pindex = pindex->pnext;
return pindex->GetBlockHash();
}
{
// Test signing a sync-checkpoint with genesis block
CSyncCheckpoint checkpoint;
- checkpoint.hashCheckpoint = hashGenesisBlock;
+ checkpoint.hashCheckpoint = !fTestNet ? hashGenesisBlock : hashGenesisBlockTestNet;
CDataStream sMsg(SER_NETWORK, PROTOCOL_VERSION);
sMsg << (CUnsignedSyncCheckpoint)checkpoint;
checkpoint.vchMsg = std::vector<unsigned char>(sMsg.begin(), sMsg.end());
return (nBestHeight >= pindexSync->nHeight + nCoinbaseMaturity ||
pindexSync->GetBlockTime() + nStakeMinAge < GetAdjustedTime());
}
+
+ // Is the sync-checkpoint too old?
+ bool IsSyncCheckpointTooOld(unsigned int nSeconds)
+ {
+ LOCK(cs_hashSyncCheckpoint);
+ // sync-checkpoint should always be accepted block
+ assert(mapBlockIndex.count(hashSyncCheckpoint));
+ const CBlockIndex* pindexSync = mapBlockIndex[hashSyncCheckpoint];
+ return (pindexSync->GetBlockTime() + nSeconds < GetAdjustedTime());
+ }
}
// ppcoin: sync-checkpoint master key
-const std::string CSyncCheckpoint::strMasterPubKey = "04c0c707c28533fd5c9f79d2d3a2d80dff259ad8f915241cd14608fb9bc07c74830efe8438f2b272a866b4af5e0c2cc2a9909972aefbd976937e39f46bb38c277c";
+const std::string CSyncCheckpoint::strMasterPubKey = "04a51b735f816de4ec3f891d5b38bbc91e1f7245c7c08d17990760b86b4d8fc3910a850ffecf73bfa8886f01739a0c4c4322201282d07b6e48ce931cc92af94850";
std::string CSyncCheckpoint::strMasterPrivKey = "";