Efficient Cryptographic Access Control Protocol for Sensitive Data Management

In view of sensitive datamanagement, an efficient cryptographic access control scheme is proposed. Basedon attribute-based encryption, the proposed scheme not only inheritsflexibility and fine-grained access control for users, but also realizes cryptographicmanagement for servers. In additional, the scheme alleviates the administeringburdens on the server, and handle dynamic access policies in a more efficientand cryptographic way. Compared with the existing system, the scheme relievesthe server from intense encryption /decryption processing, and achievesreliable decentralized encryption /decryption with good scalability andefficiency.