A Secure Anti-Collusion Data Sharing Scheme for Dynamic Groups in the Cloud

A Secure Anti-Collusion Data Sharing Scheme for Dynamic Groups in the Cloud Abstract: Benefited from cloud computing, users can achieve an effective and economical approach for datasharing among group members in the cloud with the characters of low maintenance and little management cost. Meanwhile, we must provide security guarantees for the sharing data files since they are outsourced. Unfortunately, because of the frequent change of the […]


A Comparative Analysis of the Effects of Dynamic Optical Circuit Provisioning on IP Routing

A Comparative Analysis of the Effects of Dynamic Optical Circuit Provisioning on IP Routing Abstract: We analyze the effects of dynamic optical circuit setup on IP routing in general and on two routing mechanisms in particular, i.e., explicit routing and shortest-path-first routing. We present analytical models for computing the size and placement of optical circuits […]