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// 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.
#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;
}
bool CBasicKeyStore::AddKey(const CKey& key)
{
CRITICAL_BLOCK(cs_KeyStore)
mapKeys[CBitcoinAddress(key.GetPubKey())] = key.GetSecret();
return true;
}
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("CCryptoKeyStore::GenerateNewKey() : AddKey failed");
return key.GetPubKey();
}
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;
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_KeyStore)
{
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::GetSecret(const CBitcoinAddress &address, CSecret& vchSecretOut) const
{
CRITICAL_BLOCK(cs_KeyStore)
{
if (!IsCrypted())
return CBasicKeyStore::GetSecret(address, vchSecretOut);
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;
return DecryptSecret(vMasterKey, vchCryptedSecret, Hash(vchPubKey.begin(), vchPubKey.end()), vchSecretOut);
}
}
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;
}
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