分布式系统安全

Distributed System Security

安全是分布式系统开发和应用的最重要领域之一，它为开放的分布式系统提供了相当重要的服务，如保护资源和应用的一致性、完整性，为用户和可能的网络操作做认证和授权，为远地用户提供认证、电子签名仲裁等等。本文以Ｋｅｒｂｅｒｏｓ为例，综合讨论分布式系统的安全应用，首先讨论在分布式系统中应提供哪些安全服务，然后讨论问题的解决方法以及它们是如何工作的，实际是如何实现的。

Security is one of the most important areas in the development andapplication of distributed systems.It provides very important functions in distributedsystems,like the protection and integrity of resources and applications,authenticationand authorization of users and reliable network operations,it also provides additionalfunctionality in the form of rernote user authentication,electronic signatures,arbitrationschemes,etc. This paper gives an overview of kerberos and discusses the secure applica-tion in distributed systems. First it discusses what secure services should be provided indistributed systems,then gives the solution to thesecurity problems that really appear innetworks,how they work and what they really accomplish.