Initial commit.

src/keystore.cpp

@@ -0,0 +1,223 @@
+// Copyright (c) 2009-2010 Satoshi Nakamoto
+// Copyright (c) 2009-2012 The Bitcoin developers
+// Copyright (c) 2011-2012 Litecoin Developers
+// Copyright (c) 2013 CasinoCoin Developers
+// Distributed under the MIT/X11 software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include "keystore.h"
+#include "script.h"
+
+bool CKeyStore::GetPubKey(const CKeyID &address, CPubKey &vchPubKeyOut) const
+{
+    CKey key;
+    if (!GetKey(address, key))
+        return false;
+    vchPubKeyOut = key.GetPubKey();
+    return true;
+}
+
+bool CBasicKeyStore::AddKey(const CKey& key)
+{
+    bool fCompressed = false;
+    CSecret secret = key.GetSecret(fCompressed);
+    {
+        LOCK(cs_KeyStore);
+        mapKeys[key.GetPubKey().GetID()] = make_pair(secret, fCompressed);
+    }
+    return true;
+}
+
+bool CBasicKeyStore::AddCScript(const CScript& redeemScript)
+{
+    {
+        LOCK(cs_KeyStore);
+        mapScripts[redeemScript.GetID()] = redeemScript;
+    }
+    return true;
+}
+
+bool CBasicKeyStore::HaveCScript(const CScriptID& hash) const
+{
+    bool result;
+    {
+        LOCK(cs_KeyStore);
+        result = (mapScripts.count(hash) > 0);
+    }
+    return result;
+}
+
+
+bool CBasicKeyStore::GetCScript(const CScriptID &hash, CScript& redeemScriptOut) const
+{
+    {
+        LOCK(cs_KeyStore);
+        ScriptMap::const_iterator mi = mapScripts.find(hash);
+        if (mi != mapScripts.end())
+        {
+            redeemScriptOut = (*mi).second;
+            return true;
+        }
+    }
+    return false;
+}
+
+bool CCryptoKeyStore::SetCrypted()
+{
+    {
+        LOCK(cs_KeyStore);
+        if (fUseCrypto)
+            return true;
+        if (!mapKeys.empty())
+            return false;
+        fUseCrypto = true;
+    }
+    return true;
+}
+
+bool CCryptoKeyStore::Lock()
+{
+    if (!SetCrypted())
+        return false;
+
+    {
+        LOCK(cs_KeyStore);
+        vMasterKey.clear();
+    }
+
+    NotifyStatusChanged(this);
+    return true;
+}
+
+bool CCryptoKeyStore::Unlock(const CKeyingMaterial& vMasterKeyIn)
+{
+    {
+        LOCK(cs_KeyStore);
+        if (!SetCrypted())
+            return false;
+
+        CryptedKeyMap::const_iterator mi = mapCryptedKeys.begin();
+        for (; mi != mapCryptedKeys.end(); ++mi)
+        {
+            const CPubKey &vchPubKey = (*mi).second.first;
+            const std::vector<unsigned char> &vchCryptedSecret = (*mi).second.second;
+            CSecret vchSecret;
+            if(!DecryptSecret(vMasterKeyIn, vchCryptedSecret, vchPubKey.GetHash(), vchSecret))
+                return false;
+            if (vchSecret.size() != 32)
+                return false;
+            CKey key;
+            key.SetPubKey(vchPubKey);
+            key.SetSecret(vchSecret);
+            if (key.GetPubKey() == vchPubKey)
+                break;
+            return false;
+        }
+        vMasterKey = vMasterKeyIn;
+    }
+    NotifyStatusChanged(this);
+    return true;
+}
+
+bool CCryptoKeyStore::AddKey(const CKey& key)
+{
+    {
+        LOCK(cs_KeyStore);
+        if (!IsCrypted())
+            return CBasicKeyStore::AddKey(key);
+
+        if (IsLocked())
+            return false;
+
+        std::vector<unsigned char> vchCryptedSecret;
+        CPubKey vchPubKey = key.GetPubKey();
+        bool fCompressed;
+        if (!EncryptSecret(vMasterKey, key.GetSecret(fCompressed), vchPubKey.GetHash(), vchCryptedSecret))
+            return false;
+
+        if (!AddCryptedKey(key.GetPubKey(), vchCryptedSecret))
+            return false;
+    }
+    return true;
+}
+
+
+bool CCryptoKeyStore::AddCryptedKey(const CPubKey &vchPubKey, const std::vector<unsigned char> &vchCryptedSecret)
+{
+    {
+        LOCK(cs_KeyStore);
+        if (!SetCrypted())
+            return false;
+
+        mapCryptedKeys[vchPubKey.GetID()] = make_pair(vchPubKey, vchCryptedSecret);
+    }
+    return true;
+}
+
+bool CCryptoKeyStore::GetKey(const CKeyID &address, CKey& keyOut) const
+{
+    {
+        LOCK(cs_KeyStore);
+        if (!IsCrypted())
+            return CBasicKeyStore::GetKey(address, keyOut);
+
+        CryptedKeyMap::const_iterator mi = mapCryptedKeys.find(address);
+        if (mi != mapCryptedKeys.end())
+        {
+            const CPubKey &vchPubKey = (*mi).second.first;
+            const std::vector<unsigned char> &vchCryptedSecret = (*mi).second.second;
+            CSecret vchSecret;
+            if (!DecryptSecret(vMasterKey, vchCryptedSecret, vchPubKey.GetHash(), vchSecret))
+                return false;
+            if (vchSecret.size() != 32)
+                return false;
+            keyOut.SetPubKey(vchPubKey);
+            keyOut.SetSecret(vchSecret);
+            return true;
+        }
+    }
+    return false;
+}
+
+bool CCryptoKeyStore::GetPubKey(const CKeyID &address, CPubKey& vchPubKeyOut) const
+{
+    {
+        LOCK(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)
+{
+    {
+        LOCK(cs_KeyStore);
+        if (!mapCryptedKeys.empty() || IsCrypted())
+            return false;
+
+        fUseCrypto = true;
+        BOOST_FOREACH(KeyMap::value_type& mKey, mapKeys)
+        {
+            CKey key;
+            if (!key.SetSecret(mKey.second.first, mKey.second.second))
+                return false;
+            const CPubKey vchPubKey = key.GetPubKey();
+            std::vector<unsigned char> vchCryptedSecret;
+            bool fCompressed;
+            if (!EncryptSecret(vMasterKeyIn, key.GetSecret(fCompressed), vchPubKey.GetHash(), vchCryptedSecret))
+                return false;
+            if (!AddCryptedKey(vchPubKey, vchCryptedSecret))
+                return false;
+        }
+        mapKeys.clear();
+    }
+    return true;
+}