针对云存储访问控制存在的效率和安全问题,提出一种基于MA-ABE的云存储访问控制策略,并详细给出MA-ABE算法和云存储访问控制实现过程.使用多授权中心的属性加密机制和代理重加密技术以达到云存储系统的灵活性、细粒度性、可扩展性、保密性、动态性的目的.最后分析方案的安全性和效率.
Aimed at the problem of efficiency and safety in cloud storage access control,a MA-ABE-based control policy was presented and the MA-ABE algorithm and implementation process of cloud storage access control were given in detail.The MA-ABE and proxy re-encryption technique were used to achieve flexibility,fine-granularity,scalability,confidentiality,and fine dynamics.Finally,the safety and efficiency of this scheme was analyzed.