It was strictly cryptanalysis trying to decode the enigma machine.

这是严格的密码分析程序，用它来破译恩尼格玛密码机。

Because you don't know how to do cryptanalysis, do you?

因为你不知道怎么做密码分析，对吧？

Ooh, it might be a substitution cipher. We could start with basic cryptanalysis.

甚至有可能是替换式密码。我们可以从基本密码分析着手。