Research On Trusted Dynamic Evolutionary Model For Internetware

With the advent and popularity of the Internet,the operating environment of computer software has gradually changed from static,closed,and controllable to dynamic,open and changeable.Under this background,Internetware is a new type of software system that comes into being.It can perceive the dynamic changes of the external network environment and user needs,and follow this change to carry out static adjustments and dynamic evolution.In the current trust evolution model of Internetware,the entity of the service provision component usually adopts a flooding search mode,which results in too much information complexity and response time in the evolution process.In addition,once the malware entity is referenced in evolution,it will cause great harm to the Internetware.Therefore,how to ensure the credible dynamic evolution of Internetware becomes an urgent problem to be solved.This paper takes the component entities as the research object,combines the smallworld features of the complex network,divides the component entities into several communities according to certain methods,and puts forward the community's inner trust evolution model and the community's outer trust evolution model.In the community's inner trust evolution model,the trust relationship of the component entities is divided into direct trust and indirect trust.When calculating the direct trust of the service-provision component entity,adopting the method of averaging historical service satisfaction,which resisting the “swing component entity”;when calculating indirect trust of the service component entity,priority is given to passing the central component.The entity's recommendation establishes an indirect trust path.In the community's outer trust evolution model,the calculation method for the reputation value of component entities was improved.At the same time,the concept of “trusted community” was proposed.The trust based on “trust community” was used to establish trust in service provision component entities.It proposes using the reputation value of the service provision component entity as the trust degree recommended by the community to the outside world,and using the trust degree of the service request component entity to the community to which the service provision component entity belongs as the trustworthiness of the community recommendation behavior,and integrating these two aspects.The calculation of the service request component entity's trust in the service provision component entity.Finally,experiments verify the effectiveness of the improved reputation value calculation method,as well as the complexity of request message complexity in the evolution of component entities after community division.The response time is significantly shortened,which accelerates the credible evolution of Internetware to some extent.convergence speed.