^pof;
Management;
Information;
System;
National;
Chung;
Hsing;
University;
Taichung;
^pof;
Computer;
Science;
and;
Information;
Engineering;
National;
Chung;
Hsing;
University;
Taichung;
分发系统; P2P; 数字内容; 网络安全; Gnutella; Napster; 文件共享; 数字版权管理;