public List <string> GetPrivateKeys(string password, List <Coin> spentCoins)
        {
            var wallet = WalletDao.GetWalletById(CurrentWallet.Id);

            if (MD5Helper.ToMD5(password) != wallet.Password)
            {
                throw new WTException(ExceptionCode.WrongWalletPassword, "密码错误");
            }

            var network      = NetworkOperator.Instance.Network;
            var addresses    = spentCoins.Select(o => o.ScriptPubKey.GetDestinationAddress(network).ToString()).Distinct().ToList();
            var addressInfos = AddressDao.GetByAddresses(CurrentWallet.Id, addresses);

            if (addressInfos.Count == 0 || addressInfos.Count != addresses.Count)
            {
                throw new WTException(ExceptionCode.AddressNotExisted, "当前钱包找不到相关比特币地址");
            }

            var privateKeys = new List <string>();

            foreach (var addr in addressInfos)
            {
                var keyPath      = new KeyPath(addr.KeyPath);
                var rootXPrivKey = ExtKey.Parse(CurrentWallet.RootXPrivKey, network);
                var xPrivKey     = rootXPrivKey.Derive(keyPath);
                var privKeyWif   = xPrivKey.PrivateKey.GetWif(network).ToString();
                privateKeys.Add(privKeyWif);
            }

            return(privateKeys);
        }