Integration Trust Evaluation in Grid Computation System
Yaling Zhang · Jisuanji gongcheng · 2006
Grid computation system is a dynamically changed environment,the trust relationship among sites is restricted by some factors.This paper proposes a new grid security trust model,and establishes the concept of trust on the foundation of grid site’s identity trustworthiness and behavior trustworthiness,computing power,unit server cost,previous success rate of job,intrusion detection capability and intrusion resistance capability.A new algorithm to evaluate grid site’s behavior trustworthiness is constructed.An algorithm to evaluate grid site’s integrated trustworthiness is proposed based on fuzzy integration evaluation theory of fuzzy mathematics.By means of the algorithm,trustworthiness among sites can be evaluated comprehensively and completely.Security and reliability of grid behavior can be guaranteed greatly.