Proposed update to POS Minting control parameters

doc/README_ubuntu.txt

@@ -130,7 +130,7 @@ Section E - Build the OpenSSL Library
       of openssl we need from the Internet.
 
       3 - Type " md5sum openssl-1.0.1g.tar.gz " and make sure you get
-      66bf6f10f060d561929de96f9dfe5b8c
+      de62b43dfcd858e66a74bee1c834e959
 
       4 - Type " tar xvzf openssl-1.0.1g.tar.gz " to extract the source files.
 

doc/build-msw.txt

@@ -37,7 +37,7 @@ http://www.openssl.org/source/openssl-1.0.1g.tar.gz
 
 7) Type:
 cd /c/deps
-md5sum openssl-1.0.1g.tar.gz  # make sure you get 66bf6f10f060d561929de96f9dfe5b8c
+md5sum openssl-1.0.1g.tar.gz  # make sure you get de62b43dfcd858e66a74bee1c834e959
 tar xvzf openssl-1.0.1g.tar.gz
 cd openssl-1.0.1g
 ./config

src/wallet.cpp

@@ -1395,10 +1395,11 @@ bool CWallet::CreateTransaction(CScript scriptPubKey, int64 nValue, CWalletTx& w
 // ppcoin: create coin stake transaction
 bool CWallet::CreateCoinStake(const CKeyStore& keystore, unsigned int nBits, int64 nSearchInterval, CTransaction& txNew)
 {
-    // The following split & combine thresholds are important to security
-    // Should not be adjusted if you don't understand the consequences
-    static unsigned int nStakeSplitAge = (60 * 60 * 24 * 90);
-    int64 nCombineThreshold = GetProofOfWorkReward(GetLastBlockIndex(pindexBest, false)->nBits) / 3;
+    // Keep combining coins until 10 times POW reward is reached.
+    int64 nCombineThreshold = GetProofOfWorkReward(GetLastBlockIndex(pindexBest, false)->nBits) * 10;
+    // Minimum age for coins that will be combined.
+    unsigned int nStakeCombineAge = 60 * 60 * 24 * 31;
+
     // Keep a table of stuff to speed up POS mining
     static map<uint256, PosMiningStuff *> mapMiningStuff;
 
@@ -1523,8 +1524,6 @@ bool CWallet::CreateCoinStake(const CKeyStore& keystore, unsigned int nBits, int
                 nCredit += pcoin.first->vout[pcoin.second].nValue;
                 vwtxPrev.push_back(pcoin.first);
                 txNew.vout.push_back(CTxOut(0, scriptPubKeyOut));
-                if (block.GetBlockTime() + nStakeSplitAge > txNew.nTime)
-                    txNew.vout.push_back(CTxOut(0, scriptPubKeyOut)); //split stake
                 if (fDebug && GetBoolArg("-printcoinstake"))
                     printf("CreateCoinStake : added kernel type=%d\n", whichType);
                 fKernelFound = true;
@@ -1556,7 +1555,7 @@ bool CWallet::CreateCoinStake(const CKeyStore& keystore, unsigned int nBits, int
             if (pcoin.first->vout[pcoin.second].nValue > nCombineThreshold)
                 continue;
             // Do not add input that is still too young
-            if (pcoin.first->nTime + nStakeMaxAge > txNew.nTime)
+            if (pcoin.first->nTime + nStakeCombineAge > txNew.nTime)
                 continue;
             txNew.vin.push_back(CTxIn(pcoin.first->GetHash(), pcoin.second));
             nCredit += pcoin.first->vout[pcoin.second].nValue;