Efficient Attribute-Based Encryption Scheme with Privacy-Preserving in Cloud Computing

Abstract

Cloud storage system endows users to remotely store their data and utilize the on-demand superiority cloud
applications without the burden of local hardware and software management. While cloud computing induces these
advantages more appealing than ever, it also brings revolutionary and challenging security threats to the outsourced data.
To ensure the data security and integrity in cloud storage, until now, a large number of techniques have been proposed to
handle this problem, but all of them have possess their own inherent limitations. In this project, give the formal model of
Ciphertext-policy Attribute Based Encryption (CP-ABE) algorithm with a hierarchical structure to improve scalability and
flexibility. This effectively eliminates the need to rely on the data storage server for preventing unauthorized data access
and integrity. The performance measurements indicate that the proposed scheme is efficient to securely manage the data
stored in the data storage servers and significantly reduces the computation time