数字城市服务自适应访问控制模型

Adaptive service access control model for intelligent city

传统访问控制模型不适合数字城市异构、跨域、动态变化的特征,容易造成用户使用服务信息的泄露。本文在分析传统访问控制模型基础上,结合数字城市服务特点,设计了数字城市网络中细粒度访问控制模型,给出自适应访问控制策略及实施策略算法并对其性能进行了分析。分析结果表明该模型能够满足不断变化或扩展的动态安全需求,而且相比传统访问控制模型,性能也得到了提高。

Secure access to the services in intelligent city is challenging, because of the computing environment with heterogeneous modalities. Conventional static access control mechanisms are not able to accommodate complex secure access requirements. An adaptive secure access mechanism to address this problem is proposed. It not only adapts access control policies to diverse requirements but also introduces adaptation access control algorithms during the service invocation. Through the analysis of the performance of the algorithms, it is proved that the model can fulfill the dynamic security requirements in intellizent city. and compared to the traditional models, the performance of this model is superior.