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// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2013 The Bitcoin developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef BITCOIN_KEYSTORE_H
#define BITCOIN_KEYSTORE_H
#include "key.h"
#include "sync.h"
#include "script.h" // for CNoDestination
#include <boost/signals2/signal.hpp>
#include <boost/variant.hpp>
class CScript;
/** A txout script template with a specific destination. It is either:
* * CNoDestination: no destination set
* * CKeyID: TX_PUBKEYHASH destination
* * CScriptID: TX_SCRIPTHASH destination
* A CTxDestination is the internal data type encoded in a CBitcoinAddress
*/
typedef boost::variant<CNoDestination, CKeyID, CScriptID> CTxDestination;
/** A virtual base class for key stores */
class CKeyStore
{
protected:
mutable CCriticalSection cs_KeyStore;
public:
virtual ~CKeyStore() {}
// Add a key to the store.
virtual bool AddKeyPubKey(const CKey &key, const CPubKey &pubkey) =0;
virtual bool AddKey(const CKey &key);
// Check whether a key corresponding to a given address is present in the store.
virtual bool HaveKey(const CKeyID &address) const =0;
virtual bool GetKey(const CKeyID &address, CKey& keyOut) const =0;
virtual void GetKeys(std::set<CKeyID> &setAddress) const =0;
virtual bool GetPubKey(const CKeyID &address, CPubKey& vchPubKeyOut) const;
// Support for BIP 0013 : see https://github.com/bitcoin/bips/blob/master/bip-0013.mediawiki
virtual bool AddCScript(const CScript& redeemScript) =0;
virtual bool HaveCScript(const CScriptID &hash) const =0;
virtual bool GetCScript(const CScriptID &hash, CScript& redeemScriptOut) const =0;
// Support for Watch-only addresses
virtual bool AddWatchOnly(const CScript &dest) =0;
virtual bool HaveWatchOnly(const CScript &dest) const =0;
virtual bool HaveWatchOnly() const =0;
};
typedef std::map<CKeyID, CKey> KeyMap;
typedef std::map<CScriptID, CScript > ScriptMap;
typedef std::set<CScript> WatchOnlySet;
/** Basic key store, that keeps keys in an address->secret map */
class CBasicKeyStore : public CKeyStore
{
protected:
KeyMap mapKeys;
ScriptMap mapScripts;
WatchOnlySet setWatchOnly;
public:
bool AddKeyPubKey(const CKey& key, const CPubKey &pubkey);
bool HaveKey(const CKeyID &address) const
{
bool result;
{
LOCK(cs_KeyStore);
result = (mapKeys.count(address) > 0);
}
return result;
}
void GetKeys(std::set<CKeyID> &setAddress) const
{
setAddress.clear();
{
LOCK(cs_KeyStore);
KeyMap::const_iterator mi = mapKeys.begin();
while (mi != mapKeys.end())
{
setAddress.insert((*mi).first);
mi++;
}
}
}
bool GetKey(const CKeyID &address, CKey &keyOut) const
{
{
LOCK(cs_KeyStore);
KeyMap::const_iterator mi = mapKeys.find(address);
if (mi != mapKeys.end())
{
keyOut = mi->second;
return true;
}
}
return false;
}
virtual bool AddCScript(const CScript& redeemScript);
virtual bool HaveCScript(const CScriptID &hash) const;
virtual bool GetCScript(const CScriptID &hash, CScript& redeemScriptOut) const;
virtual bool AddWatchOnly(const CScript &dest);
virtual bool HaveWatchOnly(const CScript &dest) const;
virtual bool HaveWatchOnly() const;
};
typedef std::vector<unsigned char, secure_allocator<unsigned char> > CKeyingMaterial;
typedef std::map<CKeyID, std::pair<CPubKey, std::vector<unsigned char> > > CryptedKeyMap;
#endif
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