保护你的钱包

有些比特币钱包内部使用很多隐藏私钥。如果你只备份了可见比特币地址的私钥，资金中的很大部分可能都无法从备份中恢复。

Some Bitcoin wallets use a lot of hidden private keys inside. If you have only backed up the private key to the visible bitcoin address, a large proportion of the money may not recover from the backup.

任何线上备份都容易遭致被盗。甚至一台连上网络的电脑也容易遭受恶意软件的侵害。因此，为任何暴露在网络中的备份进行加密是一个良好的安全习惯。

Even a computer that goes online is vulnerable to malicious software. As a result, encryption for any back-up that is exposed to the network is a good security habit.

单点故障不利于安全性。如果你的备份不限于仅一处，发生坏事情导致钱包无法还原的可能性就会更小。你也可以考虑使用不同的存储介质，比如U盘、纸和光盘。

A single-point failure is not safe. If your backup is not limited to just one, it is less likely that bad things will lead to the wallet not being restored. You can also consider using different storage media, such as flash disks, paper and CDs.

钱包需要定期备份，以确保所有最近的比特币找零地址和新创建的比特币地址都包含在备份中。不过，很快所有的应用程序将使用只需备份一次的钱包。

The wallet needs to be backed up regularly to ensure that all recent bitcoins for zero and newly created bitcoins are included in the backup. However, all applications will soon use wallets that only need to be backed up once.

你要确保自己不会忘记密码，否则你将永远失去你的资金。和你的银行账户不同，比特币的密码恢复选项非常有限。事实上，即使你许多年不用也应该记住你的密码。如果对此有怀疑，你也许需要保留一份写有你的密码的纸质副本，存放在像保险柜一样安全的地方。

You need to make sure you don't forget your password, or you'll lose your money forever. Unlike your bank account, Bitcoin's password recovery options are very limited. In fact, even if you don't have to remember your password for many years. If there's any doubt about it, you may need to keep a paper copy of your password in a safe place.

任何仅包含字母或可识别单词的密码都可以被认为是弱密码并很容易被破解。一个强密码必须包含字母，数字，标点符号，并且其长度必须至少为16个字符。最安全的密码是由专门的程序生成的。强密码通常更难记住，因此你需要认真熟记它。

Any password that contains only letters or identifiable words can be considered weak and easily broken. A strong password must contain letters, numbers, punctuations, and must be at least 16 characters in length. The safest password is generated by a special program. A strong password is often harder to remember, so you need to remember it carefully.

用这种方式需要有两台电脑共享同一个钱包的部分内容。第一台电脑必须与互联网完全隔绝，它是唯一持有整个钱包并可以给交易签名的电脑。第二台电脑与网络连接，并且只有一个可以创建未签名交易的可视钱包。这样，你就可以参照以下步骤安全地发起新交易了。

In this way, two computers are needed to share parts of the same wallet. The first computer must be completely isolated from the Internet, and it is the only one that holds the entire wallet and can sign the transaction. The second computer is connected to the network, and there is only one visual wallet that can create an unsigned transaction. So you can safely start a new transaction along the following lines.

1. 在联网的电脑上创建一个新交易，并把它保存到U盘中。
2. 用不联网的电脑给交易签名。
3. 用联网的电脑将签过名的交易发送出去。

因为这台联网的电脑不能为交易签名，所以即使它被入侵也不能被用来取出资金。Armory可用于处理离线交易签名。

Because this networked computer cannot sign a transaction, it cannot be used to extract funds even if it is invaded. can be used to process offline signatures.