Abstract--As the information flowing around in social networking systems is mainly related or can be attributed to their users, controlling access to such information by individual...
Universidade de ´Evora’s Integrated Information System (SIIUE) aims at representing the entire universe of concepts useful for the management and day-to-day operation of the Or...
In several distributed systems a user should only be able to access data if a user posses a certain set of credentials or attributes. Currently, the only method for enforcing such...
Access control is one of the most important security mechanisms in cloud computing. However, there has been little work that explores various comparison-based constraints for regu...
Yan Zhu, Hongxin Hu, Gail-Joon Ahn, Mengyang Yu, H...
—People, companies, and public authorities can now have a strong on-line presence and a huge amount of interactions on the Internet, made possible by the impressive growth of the...