Time domain attribute based encryption for big data access control in cloud environment
K Shobha., S. Nickolas · ACCENTS Transactions on Information Security · 2017
With the rapid development of technologies and social network sites, data generation has increased in our daily life and this enormous data is called as the big data.The ever increasing data pose many challenges from storage to computation, since traditional tools cannot manage this large amount of data.Cloud computing, due to its flexible, scalable and economic resources, is a natural fit for storing, processing and sharing the data contents.When outsourcing data contents into the cloud, it is not easy to achieve fine-grained access control especially in time-domain, as the owners of the data are not able to control their data as on their own servers.The untrustworthy cloud servers further makes this issue more challenging: 1) cloud servers may not be fully trusted by the owners to control the access of their data 2) cloud servers may also be curious about the stored data contents.Thus existing server based access control methods are not applicable for cloud-based content sharing.