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// Copyright (c) 2009-2011 Satoshi Nakamoto & 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"
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 CBasicKeyStore::AddKey(const CKey& key)
{
CRITICAL_BLOCK(cs_KeyStore)
{
mapKeys[key.GetPubKey()] = key.GetPrivKey();
mapPubKeys[Hash160(key.GetPubKey())] = key.GetPubKey();
}
return true;
}
bool CCryptoKeyStore::Unlock(const CMasterKey& vMasterKeyIn)
{
if (!SetCrypted())
return false;
std::map<std::vector<unsigned char>, std::vector<unsigned char> >::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;
CSecret vchSecret;
// decrypt vchCryptedSecret using vMasterKeyIn, into vchSecret
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;
CSecret vchSecret = key.GetSecret();
std::vector<unsigned char> vchCryptedSecret;
// encrypt vchSecret using vMasterKey, into vchCryptedSecret
AddCryptedKey(key.GetPubKey(), vchCryptedSecret);
}
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[vchPubKey] = vchCryptedSecret;
mapPubKeys[Hash160(vchPubKey)] = vchPubKey;
}
return true;
}
bool CCryptoKeyStore::GetPrivKey(const std::vector<unsigned char> &vchPubKey, CPrivKey& keyOut) const
{
if (!IsCrypted())
return CBasicKeyStore::GetPrivKey(vchPubKey, keyOut);
std::map<std::vector<unsigned char>, std::vector<unsigned char> >::const_iterator mi = mapCryptedKeys.find(vchPubKey);
if (mi != mapCryptedKeys.end())
{
const std::vector<unsigned char> &vchCryptedSecret = (*mi).second;
CSecret vchSecret;
// decrypt vchCryptedSecret using vMasterKey into vchSecret;
CKey key;
key.SetSecret(vchSecret);
keyOut = key.GetPrivKey();
return true;
}
return false;
}
bool CCryptoKeyStore::GenerateMasterKey()
{
if (!mapCryptedKeys.empty())
return false;
RandAddSeedPerfmon();
vMasterKey.resize(32);
RAND_bytes(&vMasterKey[0], 32);
if (!IsCrypted())
{
// upgrade wallet
fUseCrypto = true;
}
return true;
}
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