An Efficient Solution for Hierarchical Access Control Problem in Cloud Environment. (28th October 2014)

• Record Type: Journal Article
• Authors: He, Bing-Zhe; Chen, Chien-Ming; Wu, Tsu-Yang; Sun, Hung-Min
• Other Names: Seddeek Mohamed A. Academic Editor.
• Is Part Of: Mathematical problems in engineering. Volume 2014(2014)
• Publication Date: 2014-10-28
• Subjects: Engineering mathematics -- Periodicals; 510.2462
• DOI: 10.1155/2014/569397
• Languages: English
• ISSNs: 1024-123X

Abstract

Abstract : The time-bound hierarchical key assignment scheme provides a cryptographic solution for the access control problem in distributed systems (e.g., Pay-TV and cloud computing applications). Most time-bound hierarchical key assignment schemes can be divided into two types: adopting tamper-resistant devices and utilizing public values. Despite the fact that adopting tamper-resistant devices can easily resist to collusion attacks, utilizing public values is much cheaper and more suitable for cloud environment. In this paper, we proposed a new time-bound hierarchical key assignment scheme, which can effectively defeat the collusion attack. Besides, the proposed scheme utilizes public values instead of tamper-resistant devices, which will restrict user's convenience. Compared with the previous works, our scheme requires fewer public values and has better performance.