摘要
本文涉及的实验教学软件,用生动活泼的多媒体界面,以多个可自由选择的层次,展示了DES加密和解密的全部过程,为在教育改革中,引导学生主动地探索和研究,提供了动手演练的交互环境。文中对DES置换表的订正,以及与软件配套的实验报告书的编制,精致实用,具有一定的参考价值。
This paper describes how to develop one experiment teaching software which unfolds all the procedures of DES encryption and decryption on several selectable levels via multimedia interface. This software performs an interactive environment where students can explore DES principles initiatively. The mended DES permutation tables as well as the experiment report chained the software are well worthy because they are compactly and useful.
关键词
实验教学
软件开发
DES
加密
CAI
课件
Experiment teaching, Software developing, DES encryption, CAI courseware
