我正在寻找工具(最好是免费的)来练习各种加密分析和加密技术.跟随两个在线工具,但有更多技术的东西.
http://www.cryptool-online.org/index.php?option=com_content&view=article&id=55&Itemid=53&lang=en
http://www.simonsingh.net/The_Black_Chamber/letterfrequencies.html
任何建议都会非常受欢迎.
谢谢,Ambi.
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