A scalable security model based on role-control for distributed file system

Recently, the secure model defined in OSD standard, Maat secure models and secure model for Lustre are applied to distributed file system. These models are capacity-based models, which use symmetric key and certificate security technology. When the number of files becomes huge, a large number of capacity tickets are required and the performance will decrease. In this paper, we design a new secure model based on role and secure domain, and finally realize it in Ceph file system. The result shows that it is scalable and high-performance.