摘要： Ｊａｖａ移动代码是一种可以通过网络从一台计算机传到另一台计算机上运行的Ｊａｖａ程序，在现代网络计算及电子商务中具有广泛应用．Ｊａｖａ的这一显著特性也蕴藏着授权管理上的不足，未授权者可以很容易地非法使用这些程序．针对Ｊａｖａ移动代码的这些不足之处，分别对．Ｊａｖａ　Ａｐｐｌｅｔ及ＪａｖａＳｅｒｌｅｔ提出了基于数字签名算法的授权与访问控制方案，安全、有效地解决了这种新兴技术的授权与访问控制问题．

关键词: Java移动代码, 电子商务, 网络安全, 授权访问

Abstract: Java mobile code is a kind of Java program which can be transmitted from one computer to another through the network and then run one the destination computer. and is widely adopted in modern network computing and c-commerce. However, this distinguished feature of Java implies a disadvantage of authorization and access control, i.c., the unauthorized people can easily run these programmes illegally.Aiming at the disadvantage of Jatva mobile code, authorization and access control schemes are proposed for .Java Applet and .Java Servlet respectively to solve the problems securely and efficiently.

中图分类号: 

• TP393