Additionally, the access point may connect to a costly resource (e.g., a satellite link), or an external network that is susceptible to intrusion. For such reasons and others that concern data availability and response time, MANET applications sho

When outsourcing video contents into the cloud, it is not easy to achieve fine-grained access control especially in timedomain, as the owners of video contents are not able to control their data as on their own servers. The untrustworthy cloud