Optimal Handover Key Refresh Interval in 3GPP LTE/SAE Network

KIPS Transactions on Computer and Communication Systems, Vol. 18, No. 4, pp. 237-242, Aug. 2011
10.3745/KIPSTC.2011.18.4.237,   PDF Download:


LTE/SAE has presented the handover key management to revoke the compromised keys and to isolate corrupted network devices. In this paper, we identify that the handover key management is vulnerable to so-called de-synchronization attacks, which is jeopardizing the forward secrecy of handover key management. We place an emphasis on periodic root key update to minimize the effect of the de-synchronization attacks. An optimal value for the root key update interval is suggested in order to minimize signaling load and ensure security of user traffic.

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Cite this article
[IEEE Style]
C. K. Han and H. K. Choi, "Optimal Handover Key Refresh Interval in 3GPP LTE/SAE Network," KIPS Journal C (2001 ~ 2012) , vol. 18, no. 4, pp. 237-242, 2011. DOI: 10.3745/KIPSTC.2011.18.4.237.

[ACM Style]
Chan Kyu Han and Hyoung Kee Choi. 2011. Optimal Handover Key Refresh Interval in 3GPP LTE/SAE Network. KIPS Journal C (2001 ~ 2012) , 18, 4, (2011), 237-242. DOI: 10.3745/KIPSTC.2011.18.4.237.