Behavior value analysis and application in evaluating network entity behavior trust

At present, in areas such as wireless sensor networks, cloud computing, digital electronic resource services and other new Web applications, single static identity-based entity authentication can´t meet the dynamic security needs. In order to provide better security we must combine dynamic behaviour-based entity trust with static identity-based entity authentication. In entity behavior trust evaluation, behavior evidence is the fundamental basis of behavior evaluation. Because the entity´s behavior is random, uncertain, which causes behavior evidence was not complete and behavior value is not equal in each interaction, but as far as we know, It rarely consider this very important phenomenon in behavior trust evaluation. This paper analyzes incomplete behavior evidence obtained in entity interaction bring about a significant impact for trust evaluation and discusses the relationship between incomplete behavior evidence and behavior value, gives a kind of behavior trust evaluation strategy for different values interaction such as Less-Filling and Weight-Extension. Finally, we use two theorems and two properties to prove strategy´s effect and property in behavior trust evaluation. Paper lays the quantity foundation in enhancing value-trust reliability of entity behavior trust.