这则推特消息是一个替代密码。每一个字母都被另一个替代。
Thee tweet is a substitution cipher, in which each letter is swapped for another.
可以使用密码摘要替代明文，从而进一步改进这个PHP模块。
You can improve it further by using the password as digest instead of clear text.
可以使用密码摘要替代明文，从而进一步改进这个PHP模块。
You can improve it further by using the password as digest instead of clear text.
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