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General Information
    • ISSN: 2010-3751 (Print)
    • Frequency: Quarterly
    • DOI: 10.18178/IJFCC
    • Editor-in-Chief: Prof. Mohamed Othman
    • Executive Editor: Ms. Cherry L. Chan
    • Abstracting/ Indexing: Crossref, Electronic Journals LibraryEI (INSPEC, IET), EBSCO, etc.
    • E-mail:  ijfcc@ejournal.net 
Prof. Mohamed Othman
Department of Communication Technology and Network Universiti Putra Malaysia, Malaysia
It is my honor to be the editor-in-chief of IJFCC. The journal publishes good papers in the field of future computer and communication. Hopefully, IJFCC will become a recognized journal among the readers in the filed of future computer and communication.
IJFCC 2014Vol.3(5): 337-340 ISSN: 2010-3751
DOI: 10.7763/IJFCC.2014.V3.322

A Robust Time-Bound Hierarchical Key Assignment Scheme

Yu-Li Lin, Chien-Lung Hsu, and Yu-Hao Chuang
Abstract—Recently, Chien proposed a time-bound hierarchical key assignment scheme based on tamper-resistant devices, which improves the performance in terms of the computational efforts and the implementation costs. Later, Santis et al. demonstrated a collusion attack on Chien’s scheme to show that collusive malicious insiders can cooperatively derive some encryption keys and further proposed an improvement to eliminate the security flaws inherent in Chien’s scheme. In this paper, we will prove that Santis et al.’s key derivation is incorrect and their claimed security requirements cannot be achieved. On the other hand, we will further propose a new key derivation to improve the weakness in Santis et al., scheme.

Index Terms—Access control, cryptography, hierarchical key assignment.

Yu-Li Lin is with Ministry of Justice Investigation Bureau, New Taipei City 231, Taiwan (e-mail: andrina_lin@yahoo.com.tw).
Chien-Lung Hsu and Yu-Hao Chuang is with Department of Information Management, Chang-Gung University, Taiwan (e-mail: clhsu@mail.cgu.edu.tw, yuhao0512@gmail.com).


Cite: Yu-Li Lin, Chien-Lung Hsu, and Yu-Hao Chuang, "A Robust Time-Bound Hierarchical Key Assignment Scheme," International Journal of Future Computer and Communication vol. 3, no. 5, pp. 337-340, 2014.

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