摘要
网格计算系统是由地理上分布的,异构的计算机和资源组成,它是一个分布式的高性能计算机环境,通过网络连接,用户可以透明地共享这些资源。但其本身具有动态性和不确定性,给区域间网格实体的合作带来一系列安全问题。所以网格环境中的信任问题,成为当前网格研究的一个热点。在本文中,把信任划分为身份信任和行为信任,提出了一种新型的量化评估信任模型,来处理网格环境中实体之间的信任关系,从而更科学、有效地解决网格环境中存在的安全问题。
A grid computing system is composed of heterogeneous geographically-distrubuted computers and resources. And it is a high performance distribute environment. Users can share these resources pellucidly by the network. Because of the dynamics and uncertainty of grid environment, the collaboration of grid-entity is facing to a series of problem of security. So the trust issue of grid system becoms a hotspot in current study of grid. In this paper, we carve up the trust to identity-trust and behavior-trust, develop a new trust evaluating model to scale the relationg of the trust of grid entities, by which we can resolve security problems exist in grid environment more sciencely and effectively.
出处
《计算机科学》
CSCD
北大核心
2007年第6期88-91,共4页
Computer Science
关键词
网格
信任
信任度
信任模型
Grid, Trust, Confidence-vote, Trust model