云环境下多副本审计策略研究

Research on Strategy of Auditing Replication in Cloud Environment

针对云计算多副本审计中用户利益不能最大化的问题,基于博弈理论,建立了用户和CSP之间的博弈模型.分析了在不同条件下用户和CSP之间的最优策略,达到使用户利益最大化目的.根据Amazon S3提供的价格模型进行了仿真实验.实验结果表明,当错误率小于0.167%时,用户应选择非审计策略,当错误率大于0.167%时,用户应选择审计策略.该模型为用户提供了云计算环境下多副本审计最优策略的选择依据.

For the problem that the user＇s interest cannot be maximized during replication auditing in cloud computing environment,based on the game theory,agame model was established between the user and CSP.The optimal strategy of user and CSP was analyzed under different conditions and the purpose of maximizing the interests of the user was achieved.The price model provided by Amazon S3 was used in the simulation experiment.The simulation results show that when the error rate is less than 0.167%,user should choose the non-audit strategy.When the error rate is greater than 0.167%,the user should choose audit strategy.The model provides reference for user and CSP in choosing the optimal strategies during replication auditing in cloud computing environment.