124 lines
3.2 KiB
C++
124 lines
3.2 KiB
C++
// Copyright (c) 2009-2010 Satoshi Nakamoto
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// Copyright (c) 2011 The Bitcoin developers
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// Distributed under the MIT/X11 software license, see the accompanying
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// file license.txt or http://www.opensource.org/licenses/mit-license.php.
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#ifndef BITCOIN_KEYSTORE_H
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#define BITCOIN_KEYSTORE_H
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#include "crypter.h"
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class CKeyStore
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{
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protected:
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mutable CCriticalSection cs_KeyStore;
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public:
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virtual bool AddKey(const CKey& key) =0;
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virtual bool HaveKey(const CBitcoinAddress &address) const =0;
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virtual bool GetKey(const CBitcoinAddress &address, CKey& keyOut) const =0;
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virtual bool GetPubKey(const CBitcoinAddress &address, std::vector<unsigned char>& vchPubKeyOut) const;
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virtual std::vector<unsigned char> GenerateNewKey();
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};
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typedef std::map<CBitcoinAddress, CSecret> KeyMap;
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class CBasicKeyStore : public CKeyStore
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{
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protected:
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KeyMap mapKeys;
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public:
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bool AddKey(const CKey& key);
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bool HaveKey(const CBitcoinAddress &address) const
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{
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bool result;
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CRITICAL_BLOCK(cs_KeyStore)
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result = (mapKeys.count(address) > 0);
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return result;
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}
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bool GetKey(const CBitcoinAddress &address, CKey& keyOut) const
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{
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CRITICAL_BLOCK(cs_KeyStore)
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{
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KeyMap::const_iterator mi = mapKeys.find(address);
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if (mi != mapKeys.end())
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{
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keyOut.SetSecret((*mi).second);
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return true;
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}
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}
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return false;
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}
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};
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typedef std::map<CBitcoinAddress, std::pair<std::vector<unsigned char>, std::vector<unsigned char> > > CryptedKeyMap;
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class CCryptoKeyStore : public CBasicKeyStore
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{
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private:
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CryptedKeyMap mapCryptedKeys;
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CKeyingMaterial vMasterKey;
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// if fUseCrypto is true, mapKeys must be empty
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// if fUseCrypto is false, vMasterKey must be empty
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bool fUseCrypto;
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protected:
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bool SetCrypted();
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// will encrypt previously unencrypted keys
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bool EncryptKeys(CKeyingMaterial& vMasterKeyIn);
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bool Unlock(const CKeyingMaterial& vMasterKeyIn);
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public:
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CCryptoKeyStore() : fUseCrypto(false)
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{
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}
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bool IsCrypted() const
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{
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return fUseCrypto;
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}
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bool IsLocked() const
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{
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if (!IsCrypted())
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return false;
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bool result;
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CRITICAL_BLOCK(cs_KeyStore)
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result = vMasterKey.empty();
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return result;
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}
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bool Lock()
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{
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if (!SetCrypted())
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return false;
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CRITICAL_BLOCK(cs_KeyStore)
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vMasterKey.clear();
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return true;
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}
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virtual bool AddCryptedKey(const std::vector<unsigned char> &vchPubKey, const std::vector<unsigned char> &vchCryptedSecret);
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std::vector<unsigned char> GenerateNewKey();
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bool AddKey(const CKey& key);
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bool HaveKey(const CBitcoinAddress &address) const
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{
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CRITICAL_BLOCK(cs_KeyStore)
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{
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if (!IsCrypted())
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return CBasicKeyStore::HaveKey(address);
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return mapCryptedKeys.count(address) > 0;
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}
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return false;
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}
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bool GetKey(const CBitcoinAddress &address, CKey& keyOut) const;
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bool GetPubKey(const CBitcoinAddress &address, std::vector<unsigned char>& vchPubKeyOut) const;
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};
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#endif
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