Responsive, Efficient, and Reversible Data Access Control for Multi-Authority Cloud Storage: Enhancing Data Security in Multi-Authority Cloud Storage

Abstract

Cloud Storage is an easy and convenient way for storing and accessing data, it is one of the services that offers various facilities to the data owners. Data Access Control is one of the most successful ways to ensure data security in the cloud. However, due to various issues such as data expansion and un-trusted, un-authorized cloud server, accessing of the data has become the most challenging issue. The Ciphertext Policy- Attribute Based Encryption (CP-ABE) scheme is regarded as the most prominent because it provides owners direct control on access policies. In this paper, CP-ABE scheme has been proposed for solving the problem of attribute revocation method. It is used as an underlying technique during the design of data access control scheme which achieves forward and backward security.