对称密码设计与实现课程的作业，有完整代码及详细注释。同时还附上报告文档，希望对你有帮助。

3DES算法的c语言实现，-Symmetrical password design and implementation course work, have complete code and detailed notes. At the same time also attached document report, and I hope to help you.

3 the c language implementation algorithm DES,