Update License in File Headers

[novacoin.git] / src / keystore.cpp

diff --git a/src/keystore.cpp b/src/keystore.cpp
index bfad27c..7836ced 100644 (file)
--- a/src/keystore.cpp
+++ b/src/keystore.cpp
@@ -1,34 +1,185 @@
-// Copyright (c) 2009-2011 Satoshi Nakamoto & Bitcoin developers
+// Copyright (c) 2009-2010 Satoshi Nakamoto
+// Copyright (c) 2011 The Bitcoin developers
 // Distributed under the MIT/X11 software license, see the accompanying
-// file license.txt or http://www.opensource.org/licenses/mit-license.php.
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "headers.h"
 #include "db.h"
+#include "crypter.h"
 
+std::vector<unsigned char> CKeyStore::GenerateNewKey()
+{
+    RandAddSeedPerfmon();
+    CKey key;
+    key.MakeNewKey();
+    if (!AddKey(key))
+        throw std::runtime_error("CKeyStore::GenerateNewKey() : AddKey failed");
+    return key.GetPubKey();
+}
 
+bool CKeyStore::GetPubKey(const CBitcoinAddress &address, std::vector<unsigned char> &vchPubKeyOut) const
+{
+    CKey key;
+    if (!GetKey(address, key))
+        return false;
+    vchPubKeyOut = key.GetPubKey();
+    return true;
+}
 
-//////////////////////////////////////////////////////////////////////////////
-//
-// mapKeys
-//
+bool CBasicKeyStore::AddKey(const CKey& key)
+{
+    CRITICAL_BLOCK(cs_KeyStore)
+        mapKeys[key.GetAddress()] = key.GetSecret();
+    return true;
+}
 
-std::vector<unsigned char> CKeyStore::GenerateNewKey()
+bool CCryptoKeyStore::SetCrypted()
+{
+    CRITICAL_BLOCK(cs_KeyStore)
+    {
+        if (fUseCrypto)
+            return true;
+        if (!mapKeys.empty())
+            return false;
+        fUseCrypto = true;
+    }
+    return true;
+}
+
+std::vector<unsigned char> CCryptoKeyStore::GenerateNewKey()
 {
     RandAddSeedPerfmon();
     CKey key;
     key.MakeNewKey();
     if (!AddKey(key))
-        throw std::runtime_error("GenerateNewKey() : AddKey failed");
+        throw std::runtime_error("CCryptoKeyStore::GenerateNewKey() : AddKey failed");
     return key.GetPubKey();
 }
 
-bool CKeyStore::AddKey(const CKey& key)
+bool CCryptoKeyStore::Unlock(const CKeyingMaterial& vMasterKeyIn)
+{
+    CRITICAL_BLOCK(cs_KeyStore)
+    {
+        if (!SetCrypted())
+            return false;
+
+        CryptedKeyMap::const_iterator mi = mapCryptedKeys.begin();
+        for (; mi != mapCryptedKeys.end(); ++mi)
+        {
+            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;
+            if (vchSecret.size() != 32)
+                return false;
+            CKey key;
+            key.SetSecret(vchSecret);
+            if (key.GetPubKey() == vchPubKey)
+                break;
+            return false;
+        }
+        vMasterKey = vMasterKeyIn;
+    }
+    return true;
+}
+
+bool CCryptoKeyStore::AddKey(const CKey& key)
 {
-    CRITICAL_BLOCK(cs_mapKeys)
+    CRITICAL_BLOCK(cs_KeyStore)
     {
-        mapKeys[key.GetPubKey()] = key.GetPrivKey();
-        mapPubKeys[Hash160(key.GetPubKey())] = key.GetPubKey();
+        if (!IsCrypted())
+            return CBasicKeyStore::AddKey(key);
+
+        if (IsLocked())
+            return false;
+
+        std::vector<unsigned char> vchCryptedSecret;
+        std::vector<unsigned char> vchPubKey = key.GetPubKey();
+        if (!EncryptSecret(vMasterKey, key.GetSecret(), Hash(vchPubKey.begin(), vchPubKey.end()), vchCryptedSecret))
+            return false;
+
+        if (!AddCryptedKey(key.GetPubKey(), vchCryptedSecret))
+            return false;
     }
     return true;
 }
 
+
+bool CCryptoKeyStore::AddCryptedKey(const std::vector<unsigned char> &vchPubKey, const std::vector<unsigned char> &vchCryptedSecret)
+{
+    CRITICAL_BLOCK(cs_KeyStore)
+    {
+        if (!SetCrypted())
+            return false;
+
+        mapCryptedKeys[CBitcoinAddress(vchPubKey)] = make_pair(vchPubKey, vchCryptedSecret);
+    }
+    return true;
+}
+
+bool CCryptoKeyStore::GetKey(const CBitcoinAddress &address, CKey& keyOut) const
+{
+    CRITICAL_BLOCK(cs_KeyStore)
+    {
+        if (!IsCrypted())
+            return CBasicKeyStore::GetKey(address, keyOut);
+
+        CryptedKeyMap::const_iterator mi = mapCryptedKeys.find(address);
+        if (mi != mapCryptedKeys.end())
+        {
+            const std::vector<unsigned char> &vchPubKey = (*mi).second.first;
+            const std::vector<unsigned char> &vchCryptedSecret = (*mi).second.second;
+            CSecret vchSecret;
+            if (!DecryptSecret(vMasterKey, vchCryptedSecret, Hash(vchPubKey.begin(), vchPubKey.end()), vchSecret))
+                return false;
+            if (vchSecret.size() != 32)
+                return false;
+            keyOut.SetSecret(vchSecret);
+            return true;
+        }
+    }
+    return false;
+}
+
+bool CCryptoKeyStore::GetPubKey(const CBitcoinAddress &address, std::vector<unsigned char>& vchPubKeyOut) const
+{
+    CRITICAL_BLOCK(cs_KeyStore)
+    {
+        if (!IsCrypted())
+            return CKeyStore::GetPubKey(address, vchPubKeyOut);
+
+        CryptedKeyMap::const_iterator mi = mapCryptedKeys.find(address);
+        if (mi != mapCryptedKeys.end())
+        {
+            vchPubKeyOut = (*mi).second.first;
+            return true;
+        }
+    }
+    return false;
+}
+
+bool CCryptoKeyStore::EncryptKeys(CKeyingMaterial& vMasterKeyIn)
+{
+    CRITICAL_BLOCK(cs_KeyStore)
+    {
+        if (!mapCryptedKeys.empty() || IsCrypted())
+            return false;
+
+        fUseCrypto = true;
+        CKey key;
+        BOOST_FOREACH(KeyMap::value_type& mKey, mapKeys)
+        {
+            if (!key.SetSecret(mKey.second))
+                return false;
+            const std::vector<unsigned char> vchPubKey = key.GetPubKey();
+            std::vector<unsigned char> vchCryptedSecret;
+            if (!EncryptSecret(vMasterKeyIn, key.GetSecret(), Hash(vchPubKey.begin(), vchPubKey.end()), vchCryptedSecret))
+                return false;
+            if (!AddCryptedKey(vchPubKey, vchCryptedSecret))
+                return false;
+        }
+        mapKeys.clear();
+    }
+    return true;
+}