元计算系统轻量资源保护策略

本文提出一种不依赖于用户身份 验证的资源保护策略SecurityBox，以适合某些不依赖用户身份的元计算系统，由于不再依赖于身份验证，因此系统在资源保护机制上的软件规模与开销被和到最低点，同时也尽可能消除密码等身份标志信息在网络上传送因泄露而造成的资源保护隐患，同时，由于弱化了用户身份的概念，此资源保护策略可以为是完全面向资源的，并且Securtybox完全可由元计算系统中各结点的本地管理员随时可定制，具有良好的灵活性与可扩展性，另外，本文中的资源保护策略与资源管理紧密结合在一起，在算法设计与实现上都非常简洁有效。

A Lightweight Resource Protection Strategy in Metacomputing system

To be adapted to some metacomputing system independent of user identity, This paper put forward one kind of resoure protection strategy without authentication, which is called Securitybox. Without authentication any more, the system cost on security is reduced as much as possible and the risk of identity information's being filtched is also avoided, for such information have to be transferred through the network in general. And also for this, the dimensions of security system is constructed to be very lightweight,compared to the whole system. Without user identity and authentication, this strategy is also wholly resource-objected. Securitybox can be customized by the local administrator, so it is very flexible and extensible. In addition,combined tightly with resoure management,the protection strategy can be easily designed and implemented easily and efficiently.