Defense in depth can also be used to solve the problem of protecting cryptographic authentication information (usually called a key) from people who break into your machine.
深度防御也可以用于解决保护密码认证信息(通常称为密钥)以防止别人入侵您的机器的问题。
Finally, there is strong authentication in which an identity is verified using two or more methods, such as a password and a cryptographic key.
最后是强身份验证，其中使用两种或者更多的方法对一个标识进行验证，如密码和加密密钥。
Every time cryptographic authentication is to be used, a password must be given in order to decode the key.
每次要使用密码认证时，必须给出一个密码以解码密钥。
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