116 lines
3 KiB
C++
116 lines
3 KiB
C++
// 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.
|
|
#ifndef BITCOIN_KEYSTORE_H
|
|
#define BITCOIN_KEYSTORE_H
|
|
|
|
#include "crypter.h"
|
|
|
|
class CKeyStore
|
|
{
|
|
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 std::vector<unsigned char> GenerateNewKey();
|
|
};
|
|
|
|
typedef std::map<std::vector<unsigned char>, CPrivKey> KeyMap;
|
|
|
|
class CBasicKeyStore : public CKeyStore
|
|
{
|
|
protected:
|
|
KeyMap mapKeys;
|
|
|
|
public:
|
|
bool AddKey(const CKey& key);
|
|
bool HaveKey(const std::vector<unsigned char> &vchPubKey) const
|
|
{
|
|
return (mapKeys.count(vchPubKey) > 0);
|
|
}
|
|
bool GetPrivKey(const std::vector<unsigned char> &vchPubKey, CKey& keyOut) const
|
|
{
|
|
std::map<std::vector<unsigned char>, CPrivKey>::const_iterator mi = mapKeys.find(vchPubKey);
|
|
if (mi != mapKeys.end())
|
|
{
|
|
keyOut.SetPrivKey((*mi).second);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
};
|
|
|
|
class CCryptoKeyStore : public CBasicKeyStore
|
|
{
|
|
private:
|
|
std::map<std::vector<unsigned char>, std::vector<unsigned char> > mapCryptedKeys;
|
|
|
|
CKeyingMaterial vMasterKey;
|
|
|
|
// if fUseCrypto is true, mapKeys must be empty
|
|
// if fUseCrypto is false, vMasterKey must be empty
|
|
bool fUseCrypto;
|
|
|
|
protected:
|
|
bool SetCrypted()
|
|
{
|
|
if (fUseCrypto)
|
|
return true;
|
|
if (!mapKeys.empty())
|
|
return false;
|
|
fUseCrypto = true;
|
|
return true;
|
|
}
|
|
|
|
// will encrypt previously unencrypted keys
|
|
bool EncryptKeys(CKeyingMaterial& vMasterKeyIn);
|
|
|
|
bool Unlock(const CKeyingMaterial& vMasterKeyIn);
|
|
|
|
public:
|
|
mutable CCriticalSection cs_vMasterKey; //No guarantees master key wont get locked before you can use it, so lock this first
|
|
|
|
CCryptoKeyStore() : fUseCrypto(false)
|
|
{
|
|
}
|
|
|
|
bool IsCrypted() const
|
|
{
|
|
return fUseCrypto;
|
|
}
|
|
|
|
bool IsLocked() const
|
|
{
|
|
if (!IsCrypted())
|
|
return false;
|
|
return vMasterKey.empty();
|
|
}
|
|
|
|
bool Lock()
|
|
{
|
|
CRITICAL_BLOCK(cs_vMasterKey)
|
|
{
|
|
if (!SetCrypted())
|
|
return false;
|
|
|
|
vMasterKey.clear();
|
|
}
|
|
return true;
|
|
}
|
|
|
|
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
|
|
{
|
|
if (!IsCrypted())
|
|
return CBasicKeyStore::HaveKey(vchPubKey);
|
|
return mapCryptedKeys.count(vchPubKey) > 0;
|
|
}
|
|
bool GetPrivKey(const std::vector<unsigned char> &vchPubKey, CKey& keyOut) const;
|
|
};
|
|
|
|
#endif
|