2Balachandra Reddy Kandukuri, Ramakrishna Paturi V, Dr. Atanu Raskshit. Cloud Security Issues[C]//The 2009IEEE International Conference on Services Computing. USA: IEEE Computer Society, 2009: 517-520.
3CHALANDAR E, DARVISH P, RAHMANI M. A Centralized Cookie-based Single Sign-on in Distributed Systems[C]// Information and Communications Technology 5th Intermational Conference. 2007 : 163-165.
4SANDHU R. Future Directions in Role-Based Access Control Models[J]. MMS, 2001.
