JAVA2安全机制与实例研究

A STUDY OF JAVA2 SECURITY MECHANISM

Java语言是Internet时代最流行的一种编程语言。然而在当今网络时代,病毒和黑客肆虐,人们对信息安全性的要求越来越高。为满足Java用户日益增长的安全需求。Java的开发商SUN公司在其新推出的Java2平台中,内建了基于策略文件的安全机制,该机制对不同来源的类代码授予不同的系统资源访问权限,从而降低了恶意Java代码的非法访问所带来的危害。本文将结合关于Applet安全的实例来探讨Java2平台中的安全机制。

Java is one of the most popular programming languages, while people are now in a great era of the Internet. Because of the persecution of viruses and hackers, the needs for security are being more and more urgent. To meet the needs for security, SUN, the vendor who develops Java has suggested a security mechanism based on policy file in its new Java2 Software Develop Kit. According to this mechanism, since Java code classes from different sources granted permissions to access different system resources thus the evie damage can be reduced to the minimal extent.In this article, a case study of Applet security is demonstrated to illustrate the security mechanism of Java2 platform.