自己写的基于频率的密文解密程序

自己写的基于频率的密文解密程序 1.File List source.txt : the raw text from the router. target.txt : the text encoded. result.txt : the text to be decoded. 2.Task: We created a charactors-to-charactors mapping table. For example: A -> s; B -> Z; ... Using this mapping table, the text from "target.txt"