-// Copyright (c) 2009-2011 Satoshi Nakamoto & Bitcoin developers
+// Copyright (c) 2009-2010 Satoshi Nakamoto
+// Copyright (c) 2009-2012 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.
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef BITCOIN_KEYSTORE_H
#define BITCOIN_KEYSTORE_H
#include "crypter.h"
+#include "sync.h"
+#include <boost/signals2/signal.hpp>
+#include <boost/variant.hpp>
+class CScript;
+
+class CNoDestination {
+public:
+ friend bool operator==(const CNoDestination &a, const CNoDestination &b) { return true; }
+ friend bool operator<(const CNoDestination &a, const CNoDestination &b) { return true; }
+};
+
+/** 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
{
-public:
+protected:
mutable CCriticalSection cs_KeyStore;
+public:
+ virtual ~CKeyStore() {}
+
+ // Add a key to the store.
virtual bool AddKey(const CKey& key) =0;
- virtual bool HaveKey(const CBitcoinAddress &address) const =0;
- virtual bool GetKey(const CBitcoinAddress &address, CKey& keyOut) const =0;
- virtual bool GetPubKey(const CBitcoinAddress &address, std::vector<unsigned char>& vchPubKeyOut) const;
- virtual std::vector<unsigned char> GenerateNewKey();
+
+ // Add a malleable key to store.
+ virtual bool AddMalleableKey(const CMalleableKeyView &keyView, const CSecret &vchSecretH) =0;
+ virtual bool GetMalleableKey(const CMalleableKeyView &keyView, CMalleableKey &mKey) const =0;
+
+ // 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://en.bitcoin.it/wiki/BIP_0013
+ 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 RemoveWatchOnly(const CScript &dest) =0;
+ virtual bool HaveWatchOnly(const CScript &dest) const =0;
+ virtual bool HaveWatchOnly() const =0;
+
+ virtual bool GetSecret(const CKeyID &address, CSecret& vchSecret, bool &fCompressed) const
+ {
+ CKey key;
+ if (!GetKey(address, key))
+ return false;
+ vchSecret = key.GetSecret(fCompressed);
+ return true;
+ }
+
+ virtual bool CheckOwnership(const CPubKey &pubKeyVariant, const CPubKey &R) const =0;
+ virtual bool CheckOwnership(const CPubKey &pubKeyVariant, const CPubKey &R, CMalleableKeyView &view) const =0;
+ virtual bool CreatePrivKey(const CPubKey &pubKeyVariant, const CPubKey &R, CKey &privKey) const =0;
+ virtual void ListMalleableViews(std::list<CMalleableKeyView> &malleableViewList) const =0;
};
-typedef std::map<CBitcoinAddress, CSecret> KeyMap;
+typedef std::map<CKeyID, std::pair<CSecret, bool> > KeyMap;
+typedef std::map<CScriptID, CScript > ScriptMap;
+typedef std::set<CScript> WatchOnlySet;
+typedef std::map<CMalleableKeyView, CSecret> MalleableKeyMap;
+/** Basic key store, that keeps keys in an address->secret map */
class CBasicKeyStore : public CKeyStore
{
protected:
KeyMap mapKeys;
+ MalleableKeyMap mapMalleableKeys;
+
+ ScriptMap mapScripts;
+ WatchOnlySet setWatchOnly;
public:
bool AddKey(const CKey& key);
- bool HaveKey(const CBitcoinAddress &address) const
+ bool AddMalleableKey(const CMalleableKeyView& keyView, const CSecret &vchSecretH);
+ bool GetMalleableKey(const CMalleableKeyView &keyView, CMalleableKey &mKey) const
+ {
+ {
+ LOCK(cs_KeyStore);
+ MalleableKeyMap::const_iterator mi = mapMalleableKeys.find(keyView);
+ if (mi != mapMalleableKeys.end())
+ {
+ mKey = mi->first.GetMalleableKey(mi->second);
+ return true;
+ }
+ }
+ return false;
+ }
+
+ 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;
+ for (mi = mapKeys.begin(); mi != mapKeys.end(); ++mi) setAddress.insert((*mi).first);
+ }
+ }
+ bool GetKey(const CKeyID &address, CKey &keyOut) const
+ {
+ {
+ LOCK(cs_KeyStore);
+ KeyMap::const_iterator mi = mapKeys.find(address);
+ if (mi != mapKeys.end())
+ {
+ keyOut.Reset();
+ keyOut.SetSecret((*mi).second.first, (*mi).second.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 RemoveWatchOnly(const CScript &dest);
+ virtual bool HaveWatchOnly(const CScript &dest) const;
+ virtual bool HaveWatchOnly() const;
+
+ bool CheckOwnership(const CPubKey &pubKeyVariant, const CPubKey &R) const
+ {
+ {
+ LOCK(cs_KeyStore);
+ for (MalleableKeyMap::const_iterator mi = mapMalleableKeys.begin(); mi != mapMalleableKeys.end(); mi++)
+ {
+ if (mi->first.CheckKeyVariant(R, pubKeyVariant))
+ return true;
+ }
+ }
+ return false;
+ }
+
+ bool CheckOwnership(const CPubKey &pubKeyVariant, const CPubKey &R, CMalleableKeyView &view) const
{
- return (mapKeys.count(address) > 0);
+ {
+ LOCK(cs_KeyStore);
+ for (MalleableKeyMap::const_iterator mi = mapMalleableKeys.begin(); mi != mapMalleableKeys.end(); mi++)
+ {
+ if (mi->first.CheckKeyVariant(R, pubKeyVariant))
+ {
+ view = mi->first;
+ return true;
+ }
+ }
+ }
+ return false;
}
- bool GetKey(const CBitcoinAddress &address, CKey& keyOut) const
+
+ bool CreatePrivKey(const CPubKey &pubKeyVariant, const CPubKey &R, CKey &privKey) const
{
- KeyMap::const_iterator mi = mapKeys.find(address);
- if (mi != mapKeys.end())
{
- keyOut.SetSecret((*mi).second);
- return true;
+ LOCK(cs_KeyStore);
+ for (MalleableKeyMap::const_iterator mi = mapMalleableKeys.begin(); mi != mapMalleableKeys.end(); mi++)
+ {
+ if (mi->first.CheckKeyVariant(R, pubKeyVariant))
+ {
+ CMalleableKey mKey = mi->first.GetMalleableKey(mi->second);
+ return mKey.CheckKeyVariant(R, pubKeyVariant, privKey);
+ }
+ }
}
return false;
}
+
+ void ListMalleableViews(std::list<CMalleableKeyView> &malleableViewList) const
+ {
+ malleableViewList.clear();
+ {
+ LOCK(cs_KeyStore);
+ for (MalleableKeyMap::const_iterator mi = mapMalleableKeys.begin(); mi != mapMalleableKeys.end(); mi++)
+ malleableViewList.push_back(CMalleableKeyView(mi->first));
+ }
+ }
+
+ bool GetMalleableView(const CMalleablePubKey &mpk, CMalleableKeyView &view)
+ {
+ const CKeyID &mpkID = mpk.GetID();
+ {
+ LOCK(cs_KeyStore);
+ for (MalleableKeyMap::const_iterator mi = mapMalleableKeys.begin(); mi != mapMalleableKeys.end(); mi++)
+ if (mi->first.GetID() == mpkID)
+ {
+ view = CMalleableKeyView(mi->first);
+ return true;
+ }
+ }
+
+ return false;
+ }
};
-typedef std::map<CBitcoinAddress, std::pair<std::vector<unsigned char>, std::vector<unsigned char> > > CryptedKeyMap;
+typedef std::map<CKeyID, std::pair<CPubKey, std::vector<unsigned char> > > CryptedKeyMap;
+typedef std::map<CMalleableKeyView, std::vector<unsigned char> > CryptedMalleableKeyMap;
+/** Keystore which keeps the private keys encrypted.
+ * It derives from the basic key store, which is used if no encryption is active.
+ */
class CCryptoKeyStore : public CBasicKeyStore
{
private:
CryptedKeyMap mapCryptedKeys;
+ CryptedMalleableKeyMap mapCryptedMalleableKeys;
CKeyingMaterial vMasterKey;
bool fUseCrypto;
protected:
- bool SetCrypted()
- {
- if (fUseCrypto)
- return true;
- if (!mapKeys.empty())
- return false;
- fUseCrypto = true;
- return true;
- }
+ bool SetCrypted();
// will encrypt previously unencrypted keys
bool EncryptKeys(CKeyingMaterial& vMasterKeyIn);
+ bool DecryptKeys(const 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)
- {
- }
+ CCryptoKeyStore() : fUseCrypto(false) { }
bool IsCrypted() const
{
{
if (!IsCrypted())
return false;
- return vMasterKey.empty();
+ bool result;
+ {
+ LOCK(cs_KeyStore);
+ result = vMasterKey.empty();
+ }
+ return result;
}
- bool Lock()
+ bool Lock();
+
+ virtual bool AddCryptedKey(const CPubKey &vchPubKey, const std::vector<unsigned char> &vchCryptedSecret);
+ virtual bool AddCryptedMalleableKey(const CMalleableKeyView& keyView, const std::vector<unsigned char> &vchCryptedSecretH);
+
+ bool AddKey(const CKey& key);
+ bool AddMalleableKey(const CMalleableKeyView& keyView, const CSecret &vchSecretH);
+ bool HaveKey(const CKeyID &address) const
+ {
+ {
+ LOCK(cs_KeyStore);
+ if (!IsCrypted())
+ return CBasicKeyStore::HaveKey(address);
+ return mapCryptedKeys.count(address) > 0;
+ }
+ }
+ bool GetKey(const CKeyID &address, CKey& keyOut) const;
+ bool GetPubKey(const CKeyID &address, CPubKey& vchPubKeyOut) const;
+ void GetKeys(std::set<CKeyID> &setAddress) const
{
- CRITICAL_BLOCK(cs_vMasterKey)
+ if (!IsCrypted())
{
- if (!SetCrypted())
- return false;
+ CBasicKeyStore::GetKeys(setAddress);
+ return;
+ }
+ setAddress.clear();
+ CryptedKeyMap::const_iterator mi = mapCryptedKeys.begin();
+ while (mi != mapCryptedKeys.end())
+ {
+ setAddress.insert((*mi).first);
+ mi++;
+ }
+ }
- vMasterKey.clear();
+ bool GetMalleableKey(const CMalleableKeyView &keyView, CMalleableKey &mKey) const;
+
+ bool CheckOwnership(const CPubKey &pubKeyVariant, const CPubKey &R) const
+ {
+ {
+ LOCK(cs_KeyStore);
+ if (!IsCrypted())
+ return CBasicKeyStore::CheckOwnership(pubKeyVariant, R);
+ for (CryptedMalleableKeyMap::const_iterator mi = mapCryptedMalleableKeys.begin(); mi != mapCryptedMalleableKeys.end(); mi++)
+ {
+ if (mi->first.CheckKeyVariant(R, pubKeyVariant))
+ return true;
+ }
}
- return true;
+ return false;
}
- 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 CBitcoinAddress &address) const
+ bool CheckOwnership(const CPubKey &pubKeyVariant, const CPubKey &R, CMalleableKeyView &view) const
{
- if (!IsCrypted())
- return CBasicKeyStore::HaveKey(address);
- return mapCryptedKeys.count(address) > 0;
+ {
+ LOCK(cs_KeyStore);
+ if (!IsCrypted())
+ return CBasicKeyStore::CheckOwnership(pubKeyVariant, R, view);
+ for (CryptedMalleableKeyMap::const_iterator mi = mapCryptedMalleableKeys.begin(); mi != mapCryptedMalleableKeys.end(); mi++)
+ {
+ if (mi->first.CheckKeyVariant(R, pubKeyVariant))
+ {
+ view = mi->first;
+ return true;
+ }
+ }
+ }
+ return false;
}
- bool GetKey(const CBitcoinAddress &address, CKey& keyOut) const;
- bool GetPubKey(const CBitcoinAddress &address, std::vector<unsigned char>& vchPubKeyOut) const;
+
+ bool CheckOwnership(const CMalleablePubKey &mpk)
+ {
+ CMalleableKeyView view;
+ return GetMalleableView(mpk, view);
+ }
+
+ bool CreatePrivKey(const CPubKey &pubKeyVariant, const CPubKey &R, CKey &privKey) const;
+
+ void ListMalleableViews(std::list<CMalleableKeyView> &malleableViewList) const
+ {
+ malleableViewList.clear();
+ {
+ LOCK(cs_KeyStore);
+ if (!IsCrypted())
+ return CBasicKeyStore::ListMalleableViews(malleableViewList);
+ for (CryptedMalleableKeyMap::const_iterator mi = mapCryptedMalleableKeys.begin(); mi != mapCryptedMalleableKeys.end(); mi++)
+ malleableViewList.push_back(CMalleableKeyView(mi->first));
+ }
+ }
+
+ bool GetMalleableView(const CMalleablePubKey &mpk, CMalleableKeyView &view)
+ {
+ const CKeyID &mpkID = mpk.GetID();
+ {
+ LOCK(cs_KeyStore);
+ if (!IsCrypted())
+ return CBasicKeyStore::GetMalleableView(mpk, view);
+ for (CryptedMalleableKeyMap::const_iterator mi = mapCryptedMalleableKeys.begin(); mi != mapCryptedMalleableKeys.end(); mi++)
+ if (mi->first.GetID() == mpkID)
+ {
+ view = CMalleableKeyView(mi->first);
+ return true;
+ }
+ }
+
+ return false;
+ }
+
+ /* Wallet status (encrypted, locked) changed.
+ * Note: Called without locks held.
+ */
+ boost::signals2::signal<void (CCryptoKeyStore* wallet)> NotifyStatusChanged;
};
#endif
git://git.novaco.in / novacoin.git / blobdiff