diff --git a/src/init.cpp b/src/init.cpp
index fd1d8d3c..266c9920 100644
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -425,7 +425,6 @@ bool AppInit2(int argc, char* argv[])
         printf("mapBlockIndex.size() = %d\n",   mapBlockIndex.size());
         printf("nBestHeight = %d\n",            nBestHeight);
         printf("setKeyPool.size() = %d\n",      pwalletMain->setKeyPool.size());
-        printf("mapPubKeys.size() = %d\n",      mapPubKeys.size());
         printf("mapWallet.size() = %d\n",       pwalletMain->mapWallet.size());
         printf("mapAddressBook.size() = %d\n",  pwalletMain->mapAddressBook.size());
 
diff --git a/src/keystore.cpp b/src/keystore.cpp
index de13958a..9e1dab65 100644
--- a/src/keystore.cpp
+++ b/src/keystore.cpp
@@ -16,14 +16,19 @@ std::vector<unsigned char> CKeyStore::GenerateNewKey()
     return key.GetPubKey();
 }
 
+bool CKeyStore::GetPubKey(const uint160 &hashAddress, std::vector<unsigned char> &vchPubKeyOut) const
+{
+    CKey key;
+    if (!GetKey(hashAddress, key))
+        return false;
+    vchPubKeyOut = key.GetPubKey();
+    return true;
+}
+
 bool CBasicKeyStore::AddKey(const CKey& key)
 {
-    CRITICAL_BLOCK(cs_mapPubKeys)
     CRITICAL_BLOCK(cs_KeyStore)
-    {
-        mapKeys[key.GetPubKey()] = key.GetPrivKey();
-        mapPubKeys[Hash160(key.GetPubKey())] = key.GetPubKey();
-    }
+        mapKeys[Hash160(key.GetPubKey())] = key.GetSecret();
     return true;
 }
 
@@ -44,11 +49,11 @@ bool CCryptoKeyStore::Unlock(const CKeyingMaterial& vMasterKeyIn)
         if (!SetCrypted())
             return false;
 
-        std::map<std::vector<unsigned char>, std::vector<unsigned char> >::const_iterator mi = mapCryptedKeys.begin();
+        CryptedKeyMap::const_iterator mi = mapCryptedKeys.begin();
         for (; mi != mapCryptedKeys.end(); ++mi)
         {
-            const std::vector<unsigned char> &vchPubKey = (*mi).first;
-            const std::vector<unsigned char> &vchCryptedSecret = (*mi).second;
+            const std::vector<unsigned char> &vchPubKey = (*mi).second.first;
+            const std::vector<unsigned char> &vchCryptedSecret = (*mi).second.second;
             CSecret vchSecret;
             if(!DecryptSecret(vMasterKeyIn, vchCryptedSecret, Hash(vchPubKey.begin(), vchPubKey.end()), vchSecret))
                 return false;
@@ -88,31 +93,30 @@ bool CCryptoKeyStore::AddKey(const CKey& key)
 
 bool CCryptoKeyStore::AddCryptedKey(const std::vector<unsigned char> &vchPubKey, const std::vector<unsigned char> &vchCryptedSecret)
 {
-    CRITICAL_BLOCK(cs_mapPubKeys)
     CRITICAL_BLOCK(cs_KeyStore)
     {
         if (!SetCrypted())
             return false;
 
-        mapCryptedKeys[vchPubKey] = vchCryptedSecret;
-        mapPubKeys[Hash160(vchPubKey)] = vchPubKey;
+        mapCryptedKeys[Hash160(vchPubKey)] = make_pair(vchPubKey, vchCryptedSecret);
     }
     return true;
 }
 
-bool CCryptoKeyStore::GetPrivKey(const std::vector<unsigned char> &vchPubKey, CKey& keyOut) const
+bool CCryptoKeyStore::GetKey(const uint160 &hashAddress, CKey& keyOut) const
 {
     CRITICAL_BLOCK(cs_vMasterKey)
     {
         if (!IsCrypted())
-            return CBasicKeyStore::GetPrivKey(vchPubKey, keyOut);
+            return CBasicKeyStore::GetKey(hashAddress, keyOut);
 
-        std::map<std::vector<unsigned char>, std::vector<unsigned char> >::const_iterator mi = mapCryptedKeys.find(vchPubKey);
+        CryptedKeyMap::const_iterator mi = mapCryptedKeys.find(hashAddress);
         if (mi != mapCryptedKeys.end())
         {
-            const std::vector<unsigned char> &vchCryptedSecret = (*mi).second;
+            const std::vector<unsigned char> &vchPubKey = (*mi).second.first;
+            const std::vector<unsigned char> &vchCryptedSecret = (*mi).second.second;
             CSecret vchSecret;
-            if (!DecryptSecret(vMasterKey, (*mi).second, Hash((*mi).first.begin(), (*mi).first.end()), vchSecret))
+            if (!DecryptSecret(vMasterKey, vchCryptedSecret, Hash(vchPubKey.begin(), vchPubKey.end()), vchSecret))
                 return false;
             keyOut.SetSecret(vchSecret);
             return true;
@@ -121,6 +125,23 @@ bool CCryptoKeyStore::GetPrivKey(const std::vector<unsigned char> &vchPubKey, CK
     return false;
 }
 
+bool CCryptoKeyStore::GetPubKey(const uint160 &hashAddress, std::vector<unsigned char>& vchPubKeyOut) const
+{
+    CRITICAL_BLOCK(cs_vMasterKey)
+    {
+        if (!IsCrypted())
+            return CKeyStore::GetPubKey(hashAddress, vchPubKeyOut);
+
+        CryptedKeyMap::const_iterator mi = mapCryptedKeys.find(hashAddress);
+        if (mi != mapCryptedKeys.end())
+        {
+            vchPubKeyOut = (*mi).second.first;
+            return true;
+        }
+    }
+    return false;
+}
+
 bool CCryptoKeyStore::EncryptKeys(CKeyingMaterial& vMasterKeyIn)
 {
     CRITICAL_BLOCK(cs_KeyStore)
@@ -135,10 +156,11 @@ bool CCryptoKeyStore::EncryptKeys(CKeyingMaterial& vMasterKeyIn)
         {
             if (!key.SetPrivKey(mKey.second))
                 return false;
+            const std::vector<unsigned char> vchPubKey = key.GetPubKey();
             std::vector<unsigned char> vchCryptedSecret;
-            if (!EncryptSecret(vMasterKeyIn, key.GetSecret(), Hash(mKey.first.begin(), mKey.first.end()), vchCryptedSecret))
+            if (!EncryptSecret(vMasterKeyIn, key.GetSecret(), Hash(vchPubKey.begin(), vchPubKey.end()), vchCryptedSecret))
                 return false;
-            if (!AddCryptedKey(mKey.first, vchCryptedSecret))
+            if (!AddCryptedKey(vchPubKey, vchCryptedSecret))
                 return false;
         }
         mapKeys.clear();
diff --git a/src/keystore.h b/src/keystore.h
index 0dc09f05..976c0953 100644
--- a/src/keystore.h
+++ b/src/keystore.h
@@ -12,12 +12,13 @@ public:
     mutable CCriticalSection cs_KeyStore;
 
     virtual bool AddKey(const CKey& key) =0;
-    virtual bool HaveKey(const std::vector<unsigned char> &vchPubKey) const =0;
-    virtual bool GetPrivKey(const std::vector<unsigned char> &vchPubKey, CKey& keyOut) const =0;
+    virtual bool HaveKey(const uint160 &hashAddress) const =0;
+    virtual bool GetKey(const uint160 &hashAddress, CKey& keyOut) const =0;
+    virtual bool GetPubKey(const uint160 &hashAddress, std::vector<unsigned char>& vchPubKeyOut) const;
     virtual std::vector<unsigned char> GenerateNewKey();
 };
 
-typedef std::map<std::vector<unsigned char>, CPrivKey> KeyMap;
+typedef std::map<uint160, CSecret> KeyMap;
 
 class CBasicKeyStore : public CKeyStore
 {
@@ -26,26 +27,28 @@ protected:
 
 public:
     bool AddKey(const CKey& key);
-    bool HaveKey(const std::vector<unsigned char> &vchPubKey) const
+    bool HaveKey(const uint160 &hashAddress) const
     {
-        return (mapKeys.count(vchPubKey) > 0);
+        return (mapKeys.count(hashAddress) > 0);
     }
-    bool GetPrivKey(const std::vector<unsigned char> &vchPubKey, CKey& keyOut) const
+    bool GetKey(const uint160 &hashAddress, CKey& keyOut) const
     {
-        std::map<std::vector<unsigned char>, CPrivKey>::const_iterator mi = mapKeys.find(vchPubKey);
+        KeyMap::const_iterator mi = mapKeys.find(hashAddress);
         if (mi != mapKeys.end())
         {
-            keyOut.SetPrivKey((*mi).second);
+            keyOut.SetSecret((*mi).second);
             return true;
         }
         return false;
     }
 };
 
+typedef std::map<uint160, std::pair<std::vector<unsigned char>, std::vector<unsigned char> > > CryptedKeyMap;
+
 class CCryptoKeyStore : public CBasicKeyStore
 {
 private:
-    std::map<std::vector<unsigned char>, std::vector<unsigned char> > mapCryptedKeys;
+    CryptedKeyMap mapCryptedKeys;
 
     CKeyingMaterial vMasterKey;
 
@@ -103,13 +106,14 @@ public:
     virtual bool AddCryptedKey(const std::vector<unsigned char> &vchPubKey, const std::vector<unsigned char> &vchCryptedSecret);
     std::vector<unsigned char> GenerateNewKey();
     bool AddKey(const CKey& key);
-    bool HaveKey(const std::vector<unsigned char> &vchPubKey) const
+    bool HaveKey(const uint160 &hashAddress) const
     {
         if (!IsCrypted())
-            return CBasicKeyStore::HaveKey(vchPubKey);
-        return mapCryptedKeys.count(vchPubKey) > 0;
+            return CBasicKeyStore::HaveKey(hashAddress);
+        return mapCryptedKeys.count(hashAddress) > 0;
     }
-    bool GetPrivKey(const std::vector<unsigned char> &vchPubKey, CKey& keyOut) const;
+    bool GetKey(const uint160 &hashAddress, CKey& keyOut) const;
+    bool GetPubKey(const uint160 &hashAddress, std::vector<unsigned char>& vchPubKeyOut) const;
 };
 
 #endif
diff --git a/src/main.cpp b/src/main.cpp
index e3ad3504..fa893e59 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -21,9 +21,6 @@ set<CWallet*> setpwalletRegistered;
 
 CCriticalSection cs_main;
 
-CCriticalSection cs_mapPubKeys;
-map<uint160, vector<unsigned char> > mapPubKeys;
-
 map<uint256, CTransaction> mapTransactions;
 CCriticalSection cs_mapTransactions;
 unsigned int nTransactionsUpdated = 0;
diff --git a/src/main.h b/src/main.h
index d34f68f9..9d6de52f 100644
--- a/src/main.h
+++ b/src/main.h
@@ -1568,7 +1568,5 @@ public:
 
 
 extern std::map<uint256, CTransaction> mapTransactions;
-extern std::map<uint160, std::vector<unsigned char> > mapPubKeys;
-extern CCriticalSection cs_mapPubKeys;
 
 #endif
diff --git a/src/rpc.cpp b/src/rpc.cpp
index fa14fc0b..46980582 100644
--- a/src/rpc.cpp
+++ b/src/rpc.cpp
@@ -967,7 +967,7 @@ Value ListReceived(const Array& params, bool fByAccounts)
             {
                 // Only counting our own bitcoin addresses and not ip addresses
                 uint160 hash160 = txout.scriptPubKey.GetBitcoinAddressHash160();
-                if (hash160 == 0 || !mapPubKeys.count(hash160)) // IsMine
+                if (hash160 == 0 || !pwalletMain->HaveKey(hash160)) // IsMine
                     continue;
 
                 tallyitem& item = mapTally[hash160];
@@ -1242,7 +1242,7 @@ Value listaccounts(const Array& params, bool fHelp)
     {
         BOOST_FOREACH(const PAIRTYPE(string, string)& entry, pwalletMain->mapAddressBook) {
             uint160 hash160;
-            if(AddressToHash160(entry.first, hash160) && mapPubKeys.count(hash160)) // This address belongs to me
+            if(AddressToHash160(entry.first, hash160) && pwalletMain->HaveKey(hash160)) // This address belongs to me
                 mapAccountBalances[entry.second] = 0;
         }
 
@@ -1564,7 +1564,7 @@ Value validateaddress(const Array& params, bool fHelp)
         // version of the address:
         string currentAddress = Hash160ToAddress(hash160);
         ret.push_back(Pair("address", currentAddress));
-        ret.push_back(Pair("ismine", (mapPubKeys.count(hash160) > 0)));
+        ret.push_back(Pair("ismine", (pwalletMain->HaveKey(hash160) > 0)));
         CRITICAL_BLOCK(pwalletMain->cs_mapAddressBook)
         {
             if (pwalletMain->mapAddressBook.count(currentAddress))
diff --git a/src/script.cpp b/src/script.cpp
index 654aaa10..b92f7b08 100644
--- a/src/script.cpp
+++ b/src/script.cpp
@@ -1041,7 +1041,9 @@ bool Solver(const CKeyStore& keystore, const CScript& scriptPubKey, uint256 hash
                 // Sign
                 const valtype& vchPubKey = item.second;
                 CKey key;
-                if (!keystore.GetPrivKey(vchPubKey, key))
+                if (!keystore.GetKey(Hash160(vchPubKey), key))
+                    return false;
+                if (key.GetPubKey() != vchPubKey)
                     return false;
                 if (hash != 0)
                 {
@@ -1055,12 +1057,8 @@ bool Solver(const CKeyStore& keystore, const CScript& scriptPubKey, uint256 hash
             else if (item.first == OP_PUBKEYHASH)
             {
                 // Sign and give pubkey
-                map<uint160, valtype>::iterator mi = mapPubKeys.find(uint160(item.second));
-                if (mi == mapPubKeys.end())
-                    return false;
-                const vector<unsigned char>& vchPubKey = (*mi).second;
                 CKey key;
-                if (!keystore.GetPrivKey(vchPubKey, key))
+                if (!keystore.GetKey(uint160(item.second), key))
                     return false;
                 if (hash != 0)
                 {
@@ -1068,7 +1066,7 @@ bool Solver(const CKeyStore& keystore, const CScript& scriptPubKey, uint256 hash
                     if (!key.Sign(hash, vchSig))
                         return false;
                     vchSig.push_back((unsigned char)nHashType);
-                    scriptSigRet << vchSig << vchPubKey;
+                    scriptSigRet << vchSig << key.GetPubKey();
                 }
             }
             else
@@ -1102,19 +1100,16 @@ bool IsMine(const CKeyStore &keystore, const CScript& scriptPubKey)
         {
             if (item.first == OP_PUBKEY)
             {
-                // Sign
                 const valtype& vchPubKey = item.second;
-                if (!keystore.HaveKey(vchPubKey))
+                vector<unsigned char> vchPubKeyFound;
+                if (!keystore.GetPubKey(Hash160(vchPubKey), vchPubKeyFound))
+                    return false;
+                if (vchPubKeyFound != vchPubKey)
                     return false;
             }
             else if (item.first == OP_PUBKEYHASH)
             {
-                // Sign and give pubkey
-                map<uint160, valtype>::iterator mi = mapPubKeys.find(uint160(item.second));
-                if (mi == mapPubKeys.end())
-                    return false;
-                const vector<unsigned char>& vchPubKey = (*mi).second;
-                if (!keystore.HaveKey(vchPubKey))
+                if (!keystore.HaveKey(uint160(item.second)))
                     return false;
             }
             else
@@ -1128,33 +1123,28 @@ bool IsMine(const CKeyStore &keystore, const CScript& scriptPubKey)
 }
 
 
-bool ExtractPubKey(const CScript& scriptPubKey, const CKeyStore* keystore, vector<unsigned char>& vchPubKeyRet)
+bool ExtractHash160(const CScript& scriptPubKey, const CKeyStore* keystore, uint160& hash160Ret)
 {
-    vchPubKeyRet.clear();
-
     vector<pair<opcodetype, valtype> > vSolution;
     if (!Solver(scriptPubKey, vSolution))
         return false;
 
-    CRITICAL_BLOCK(cs_mapPubKeys)
+    CRITICAL_BLOCK(keystore->cs_KeyStore)
     {
         BOOST_FOREACH(PAIRTYPE(opcodetype, valtype)& item, vSolution)
         {
-            valtype vchPubKey;
+            uint160 hash160;
             if (item.first == OP_PUBKEY)
             {
-                vchPubKey = item.second;
+                hash160 = Hash160(item.second);
             }
             else if (item.first == OP_PUBKEYHASH)
             {
-                map<uint160, valtype>::iterator mi = mapPubKeys.find(uint160(item.second));
-                if (mi == mapPubKeys.end())
-                    continue;
-                vchPubKey = (*mi).second;
+                hash160 = uint160(item.second);
             }
-            if (keystore == NULL || keystore->HaveKey(vchPubKey))
+            if (keystore == NULL || keystore->HaveKey(hash160))
             {
-                vchPubKeyRet = vchPubKey;
+                hash160Ret = hash160;
                 return true;
             }
         }
@@ -1163,26 +1153,6 @@ bool ExtractPubKey(const CScript& scriptPubKey, const CKeyStore* keystore, vecto
 }
 
 
-bool ExtractHash160(const CScript& scriptPubKey, uint160& hash160Ret)
-{
-    hash160Ret = 0;
-
-    vector<pair<opcodetype, valtype> > vSolution;
-    if (!Solver(scriptPubKey, vSolution))
-        return false;
-
-    BOOST_FOREACH(PAIRTYPE(opcodetype, valtype)& item, vSolution)
-    {
-        if (item.first == OP_PUBKEYHASH)
-        {
-            hash160Ret = uint160(item.second);
-            return true;
-        }
-    }
-    return false;
-}
-
-
 bool VerifyScript(const CScript& scriptSig, const CScript& scriptPubKey, const CTransaction& txTo, unsigned int nIn, int nHashType)
 {
     vector<vector<unsigned char> > stack;
diff --git a/src/script.h b/src/script.h
index 2a36db2f..be950f30 100644
--- a/src/script.h
+++ b/src/script.h
@@ -710,8 +710,7 @@ public:
 
 bool IsStandard(const CScript& scriptPubKey);
 bool IsMine(const CKeyStore& keystore, const CScript& scriptPubKey);
-bool ExtractPubKey(const CScript& scriptPubKey, const CKeyStore* pkeystore, std::vector<unsigned char>& vchPubKeyRet);
-bool ExtractHash160(const CScript& scriptPubKey, uint160& hash160Ret);
+bool ExtractHash160(const CScript& scriptPubKey, const CKeyStore* pkeystore, uint160& hash160Ret);
 bool SignSignature(const CKeyStore& keystore, const CTransaction& txFrom, CTransaction& txTo, unsigned int nIn, int nHashType=SIGHASH_ALL, CScript scriptPrereq=CScript());
 bool VerifySignature(const CTransaction& txFrom, const CTransaction& txTo, unsigned int nIn, int nHashType=0);
 
diff --git a/src/ui.cpp b/src/ui.cpp
index eae0a4f4..fba8ed80 100644
--- a/src/ui.cpp
+++ b/src/ui.cpp
@@ -238,9 +238,10 @@ void SetDefaultReceivingAddress(const string& strAddress)
         uint160 hash160;
         if (!AddressToHash160(strAddress, hash160))
             return;
-        if (!mapPubKeys.count(hash160))
+        vector<unsigned char> vchPubKey;
+        if (!pwalletMain->GetPubKey(hash160, vchPubKey))
             return;
-        pwalletMain->SetDefaultKey(mapPubKeys[hash160]);
+        pwalletMain->SetDefaultKey(vchPubKey);
         pframeMain->m_textCtrlAddress->SetValue(strAddress);
     }
 }
@@ -703,15 +704,15 @@ bool CMainFrame::InsertTransaction(const CWalletTx& wtx, bool fNew, int nIndex)
             {
                 if (pwalletMain->IsMine(txout))
                 {
-                    vector<unsigned char> vchPubKey;
-                    if (ExtractPubKey(txout.scriptPubKey, pwalletMain, vchPubKey))
+                    uint160 hash160;
+                    if (ExtractHash160(txout.scriptPubKey, pwalletMain, hash160))
                     {
                         CRITICAL_BLOCK(pwalletMain->cs_mapAddressBook)
                         {
                             //strDescription += _("Received payment to ");
                             //strDescription += _("Received with address ");
                             strDescription += _("Received with: ");
-                            string strAddress = PubKeyToAddress(vchPubKey);
+                            string strAddress = Hash160ToAddress(hash160);
                             map<string, string>::iterator mi = pwalletMain->mapAddressBook.find(strAddress);
                             if (mi != pwalletMain->mapAddressBook.end() && !(*mi).second.empty())
                             {
@@ -786,7 +787,7 @@ bool CMainFrame::InsertTransaction(const CWalletTx& wtx, bool fNew, int nIndex)
                 {
                     // Sent to Bitcoin Address
                     uint160 hash160;
-                    if (ExtractHash160(txout.scriptPubKey, hash160))
+                    if (ExtractHash160(txout.scriptPubKey, pwalletMain, hash160))
                         strAddress = Hash160ToAddress(hash160);
                 }
 
@@ -1502,10 +1503,10 @@ CTxDetailsDialog::CTxDetailsDialog(wxWindow* parent, CWalletTx wtx) : CTxDetails
                 {
                     if (pwalletMain->IsMine(txout))
                     {
-                        vector<unsigned char> vchPubKey;
-                        if (ExtractPubKey(txout.scriptPubKey, pwalletMain, vchPubKey))
+                        uint160 hash160;
+                        if (ExtractHash160(txout.scriptPubKey, pwalletMain, hash160))
                         {
-                            string strAddress = PubKeyToAddress(vchPubKey);
+                            string strAddress = Hash160ToAddress(hash160);
                             if (pwalletMain->mapAddressBook.count(strAddress))
                             {
                                 strHTML += string() + _("<b>From:</b> ") + _("unknown") + "<br>";
@@ -1589,7 +1590,7 @@ CTxDetailsDialog::CTxDetailsDialog(wxWindow* parent, CWalletTx wtx) : CTxDetails
                     {
                         // Offline transaction
                         uint160 hash160;
-                        if (ExtractHash160(txout.scriptPubKey, hash160))
+                        if (ExtractHash160(txout.scriptPubKey, pwalletMain, hash160))
                         {
                             string strAddress = Hash160ToAddress(hash160);
                             strHTML += _("<b>To:</b> ");
@@ -2630,7 +2631,7 @@ CAddressBookDialog::CAddressBookDialog(wxWindow* parent, const wxString& strInit
             string strAddress = item.first;
             string strName = item.second;
             uint160 hash160;
-            bool fMine = (AddressToHash160(strAddress, hash160) && mapPubKeys.count(hash160));
+            bool fMine = (AddressToHash160(strAddress, hash160) && pwalletMain->HaveKey(hash160));
             wxListCtrl* plistCtrl = fMine ? m_listCtrlReceiving : m_listCtrlSending;
             int nIndex = InsertLine(plistCtrl, strName, strAddress);
             if (strAddress == (fMine ? strDefaultReceiving : string(strInitSelected)))
@@ -2741,7 +2742,7 @@ void CAddressBookDialog::OnButtonCopy(wxCommandEvent& event)
 bool CAddressBookDialog::CheckIfMine(const string& strAddress, const string& strTitle)
 {
     uint160 hash160;
-    bool fMine = (AddressToHash160(strAddress, hash160) && mapPubKeys.count(hash160));
+    bool fMine = (AddressToHash160(strAddress, hash160) && pwalletMain->HaveKey(hash160));
     if (fMine)
         wxMessageBox(_("This is one of your own addresses for receiving payments and cannot be entered in the address book.  "), strTitle);
     return fMine;
diff --git a/src/wallet.cpp b/src/wallet.cpp
index 2ee918fd..ba501863 100644
--- a/src/wallet.cpp
+++ b/src/wallet.cpp
@@ -124,7 +124,6 @@ public:
 
 bool CWallet::EncryptWallet(const string& strWalletPassphrase)
 {
-    CRITICAL_BLOCK(cs_mapPubKeys)
     CRITICAL_BLOCK(cs_KeyStore)
     CRITICAL_BLOCK(cs_vMasterKey)
     CRITICAL_BLOCK(cs_pwalletdbEncryption)
@@ -439,10 +438,8 @@ void CWalletTx::GetAmounts(int64& nGeneratedImmature, int64& nGeneratedMature, l
         string address;
         uint160 hash160;
         vector<unsigned char> vchPubKey;
-        if (ExtractHash160(txout.scriptPubKey, hash160))
+        if (ExtractHash160(txout.scriptPubKey, pwallet, hash160))
             address = Hash160ToAddress(hash160);
-        else if (ExtractPubKey(txout.scriptPubKey, NULL, vchPubKey))
-            address = PubKeyToAddress(vchPubKey);
         else
         {
             printf("CWalletTx::GetAmounts: Unknown transaction type found, txid %s\n",
@@ -1136,7 +1133,7 @@ int CWallet::LoadWallet(bool& fFirstRunRet)
         return nLoadWalletRet;
     fFirstRunRet = vchDefaultKey.empty();
 
-    if (!HaveKey(vchDefaultKey))
+    if (!HaveKey(Hash160(vchDefaultKey)))
     {
         // Create new keyUser and set as default key
         RandAddSeedPerfmon();
@@ -1263,7 +1260,7 @@ void CWallet::ReserveKeyFromKeyPool(int64& nIndex, CKeyPool& keypool)
         setKeyPool.erase(setKeyPool.begin());
         if (!walletdb.ReadPool(nIndex, keypool))
             throw runtime_error("ReserveKeyFromKeyPool() : read failed");
-        if (!HaveKey(keypool.vchPubKey))
+        if (!HaveKey(Hash160(keypool.vchPubKey)))
             throw runtime_error("ReserveKeyFromKeyPool() : unknown key in key pool");
         assert(!keypool.vchPubKey.empty());
         printf("keypool reserve %"PRI64d"\n", nIndex);
diff --git a/src/wallet.h b/src/wallet.h
index c19b3f43..277d0b1e 100644
--- a/src/wallet.h
+++ b/src/wallet.h
@@ -104,10 +104,10 @@ public:
     }
     bool IsChange(const CTxOut& txout) const
     {
-        std::vector<unsigned char> vchPubKey;
-        if (ExtractPubKey(txout.scriptPubKey, this, vchPubKey))
+        uint160 hash160;
+        if (ExtractHash160(txout.scriptPubKey, this, hash160))
             CRITICAL_BLOCK(cs_mapAddressBook)
-                if (!mapAddressBook.count(PubKeyToAddress(vchPubKey)))
+                if (!mapAddressBook.count(Hash160ToAddress(hash160)))
                     return true;
         return false;
     }