This Article 
   
 Share 
   
 Bibliographic References 
   
 Add to: 
 
Digg
Furl
Spurl
Blink
Simpy
Google
Del.icio.us
Y!MyWeb
 
 Search 
   
On the Security of an Efficient Time-Bound Hierarchical Key Management Scheme
April-June 2009 (vol. 6 no. 2)
pp. 159-160
Hung-Min Sun, National Tsing Hua University, Hsinchu
King-Hang Wang, National Tsing Hua University, Hsinchu
Chien-Ming Chen, National Tsing Hua University, HsingChu
Recently, Bertino et al. proposed a new time-bound key management scheme for broadcasting. The security of their scheme is planted on the hardness breaking of elliptic curve discrete log problem, HMAC, and tamper-resistance devices. They claimed that as long as the three assumptions hold, their scheme is secure. By means of secure, users cannot access resources that they are not granted, even if users collude. In this paper, we demonstrate that this scheme is insecure against the collusion attack. We also provide some possible amendments to this scheme.

[1] W.-G. Tzeng, “A Time-Bound Cryptographic Key Assignment Scheme for Access Control in a Hierarchy,” IEEE Trans. Knowledge and Data Eng., vol. 14, no. 1, pp. 182-188, Jan./Feb. 2002.
[2] H.-Y. Chien, “Efficient Time-Bound Hierarchical Key Assignment Scheme,” IEEE Trans. Knowledge and Data Eng., vol. 16, no. 10, pp. 1301-1304, Oct. 2004.
[3] E. Bertino, N. Shang, and S. Wagstaff, “An Efficient Time-Bound Hierarchical Key Management Scheme for Secure Broadcasting,” IEEE Trans. Dependable and Secure Computing, vol. 5, no. 2, pp. 65-70, Apr.-June 2008.
[4] H.-M. Sun, K.-H. Wang, and C.-M. Chen, “On the Security of an Efficient Time-Bound Hierarchical Key Management Scheme (Full Version),” technical report, National Tsing Hua Univ., 2009.

Index Terms:
Time-bound key management, cryptanalysis.
Citation:
Hung-Min Sun, King-Hang Wang, Chien-Ming Chen, "On the Security of an Efficient Time-Bound Hierarchical Key Management Scheme," IEEE Transactions on Dependable and Secure Computing, vol. 6, no. 2, pp. 159-160, April-June 2009, doi:10.1109/TDSC.2009.15
Usage of this product signifies your acceptance of the Terms of Use.