Department;
of;
Computer;
Science;
and;
Technology,;
Nanjing;
University;
of;
Posts;
and;
Telecommunications,;
Nanjing;
210003,;
China;
State;
Key;
Laboratory;
of;
Information;
Security,;
Graduate;
School;
of;
Chinese;
Academy;
of;
Sciences,;
Beijing;
100039,;
China;
多运动代理; 网络安全; Java卡; 关联信号; 电子商务;