经典密码学现代密码学 Classical and Contemporary Cryptology
多名码代替密码 homophonic substitution cipher ; Homophonic Substitution
多名码替代密码 homophonic substitution cipher
通过适当的说服工作，增加身份验证方案的安全性可以像对当前密码输入代码应用控制算法一样简单。
With the appropriate persuasion, increasing the security of your authentication schemes can be as easy as applying these control algorithms to your current password entry code.
注意，帐户的用户名和密码在代码中从未用过。
Note that the account's username and password are never used in the code.
不过我们真正希望的是自己的朋友也可以使用密码解锁代码来解除屏保。
What we really want to do, though, is impress our friends with the secret unlocking code to disable the screensaver.
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