【摘要】 针对现有基于RBAC(Role-Based Access Control)的委托模型在安全性、可靠性等方面存在的问题,引入协作分工策略和信任度,提出一种基于协作贡献的信任委托授权模型,并给出了协作委托授权过程及模型结构.该模型在委托方出差或休假的情况下,根据委托授权流程选取合适的受托对象参与协作过程,共同决策资源的访问权限.理论分析与实验验证了模型的安全性和可靠性.更多还原

【Abstract】 Aiming at problems of security and reliability in the existing delegation models based on RBAC(Role-Based Access Control),a collaborative contribution-based trustworthy delegation authorization model was proposed by introducing trustworthiness and division of collaboration duty,the collaborative delegation authorization process and the structure of the model were presented.The most appropriate candidate was chosed and participated in the collaboration in case that the delegating user was on business or on leave,and the delegatee got the access authority of system resources with other collaborators.Theoretical analyses and experimental results show that the model is secure and reliable.更多还原