我们也要谢谢部门没有盘算机科学，偷越技能学院时间和资源给这个项目。

We would also like to thank the Department of Computer Science of Tijuana Institute of Technology for the time and resources given to this project.

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跟着盘算机网络、多媒体及信息科学的不断发铺，数字媒体的产权维护和完全性认证已成为一个迫切须要解决的题目。

Along with the development of the computer network, multimedia and information science, problems brought by copyright protection of digital media have become more and more serious.

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