Reliable Proxy Re-encryption in Unreliable Clouds
In this paper, the authors propose an efficient data retrieval scheme using attribute-based encryption. The proposed scheme is best suited for cloud storage systems with substantial amount of data. It provides rich expressiveness as regards access control and fast searches with simple comparisons of searching entities. The proposed scheme also guarantees data security end-user privacy during the data retrieval process. A key approach to secure cloud computing is for the data owner to store encrypted data in the cloud, and issue decryption keys to authorized users. The cloud storage based information retrieval service is a promising technology that will form a vital market in the near future.