International Journal




Security Analysis and Bypass User Authentication Bound to Device of Windows Hello in the Wild [PDF]

  • Ejin Kim, Hyoung-Kee Choi
  • Security and Communication Networks, Vol.2021, Article ID 6245306. pp. 1-13, Jul. 2021


Evolution of Wi-Fi Protected Access: Security Challenges [PDF]

  • Songhui Kwon, Hyoung-Kee Choi
  • IEEE Consumer Electronics Magazine, Vol.10, pp. 74-81, Jan 2021




Secure and Efficient Binding Updates in Host-based Distributed Mobility Management. [PDF]

  • Seyeong Lee, Hyoung-Kee Choi, Ejin Kim, Jong-Hyouk Lee
  • Springer Wireless Networks, Vol.25, No.4, pp. 1443-1459, May 2019.




A Healthcare Information System for Secure Delivery and Remote Management of Medical Records [PDF]

  • Hyoung-Kee Choi, Ki-Eun Shin, Hyoungshick Kim
  • IEEE Transactions on Information and Systems, Vol.E99-D, No.4, pp. 883-890, April 2016.




A Group-based Security Protocol for Machine-type Communications in LTE-advanced [PDF]

  • Daesung Choi, Hyoung-Kee Choi, Se-Yeung Lee
  • Springer Wireless Network , Vol.21, No.2, pp.405-419, February 2015.




Security Analysis of Handover key Management in 4G LTE/SAE Network [PDF]

  • Chan-Kyu Han, Hyoung-Kee Choi
  • IEEE Transactions on Mobile Computing, Vol.13, No.2, pp. 457-468, February 2014.


A Group-based Security Protocol for Machine-type Communications in LTE-advanced [PDF]

  • Daesung Choi, Hyoung-Kee Choi, Se-Yeung Lee
  • Springer Wireless Network , August 2014.




Improvements on Hsiang and Shih’s Remote User Authentication Scheme using Smart Cards [PDF]

  • Jung-Yoon Kim, Hyoung-Kee Choi
  • Transactions on Information and Systems, Vol.E95-D, No.10, pp. 2393-2400, October 2012.


An Enhanced Security Protocol for VANET-based Entertainment Services [PDF]

  • Jung-Yoon Kim, Hyoung-Kee Choi
  • Transactions on Information and Systems, Vol.E95-B, No.7, pp. 2245-2256, July 2012.




Further Improved Remote User Authentication Scheme [PDF]

  • Jung-Yoon Kim, Hyoung-Kee Choi, John A.Copeland
  • Transactions on Fundamentals of Electronics, Vol.E94-A, No.6, pp. 1426-1433, June 2011.


Secure and Efficient Protocol for Vehicular Ad Hoc Network with Privacy Preservation [PDF]

  • Hyoung-Kee Choi, In-Hwan Kim, Jae-Chern Yoo
  • EURASIP Journal on Wireless Communications and Networking, Vol.2011, No.11, pp. 1-15, January 2011.





A Contention Access Mechanism Based on a Partitioned Contention Access Period in IEEE 802.15.4 MAC

  • Sueng Jae Bae, Tae-Jin Lee, Hyoung-Kee Choi, Min Young Chung
  • Transactions on Communications, E93-B, No.12, pp. 3577-3590, 2010 December.


1-D Fast Normalized Cross-correlation using Additions [PDF]

  • Jae-Chern Yoo, Byoung Deog Choi, Hyoung-Kee Choi
  • Digital Signal Processing, Vol.20, No.5, pp. 1482-1493, 2010 September.


A new LLR approximation for BICM systems with HARQ

  • Jin Whan Kang, Sang-Hyo Kim, Seokho Yoon, Tae Hee Han, and Hyoung-Kee Choi
  • Transactions on Communications, Vol.E93-B, No.6, pp. 1628-1632, 2010 June.


Improvements on Sun et al.’s Conditional Access System in Pay-TV Broadcasting Systems[PDF] [Extended]

  • Jung-Yoon Kim and Hyoung-Kee Choi
  • Transactions on Multimedia, Vol.12, No.4, pp. 337-340, 2010 June.


2001 ~ 2009


Effective Discovery of Attacks using Entropy of Packet Dynamics [PDF] [Extended]

  • Chan-Kyu Han, Hyoung-Kee Choi
  • Network, Vol.23, No.5, pp. 4-12, 2009 September.


A Secure and Lightweight Approach for Routing Optimization in Mobile IPv6 [PDF]

  • Sehwa Song, Hyoung-Kee Choi, Jung-Yoon Kim
  • EURASIP Journal on Wireless Communications and Networking, Vol.2009, 2009 July.


A Secure 4-Way Handshake in 802.11i Using Cookies [PDF]

  • Sung‐Hyun Eum, Yae‐Hoe Kim, Hyoung‐Kee Choi
  • PAIST Press, Vol.2, pp. 40-48, 2008 July.


A Novel Frequency Offset Estimation Algorithm Using Differential Combining for OFDM-Based WLAN Systems [PDF]

  • Sang-Ho Ahn, Sang-Hun Kim, Hyoung-Kee Choi, Sun-Yong Kim, Seok-Ho Yoon
  • LNCS, Vol.4490, pp. 360-367, 2007.


A Study of Performance Improvement in EAP [PDF]

  • Eun-Chul Cha, Hyoung-Kee Choi
  • LNCS, Vol.4479, pp. 1183-1186, 2007 May.


A Symptom-based Taxonomy for an Early Detection of Network Attacks [PDF]

  • Ki-Yoon Kim, Hyoung-Kee Choi
  • LNCS, Vol.4430, pp. 327-328, 2007 April.


A Low Complexity and Robust Frequency offset Estimation Algorithm for OFDM-Based WLAN Systems [PDF]

  • Sang-Hun Kim, Seok-Ho Yoon, Hyoung-Kee Choi, Sun-Yong Kim
  • LNCS, Vol.3992, pp. 961-968, 2006 May.


Channel-adaptive GPS Scheduling for Heterogeneous Multimedia in CDMA Networks [PDF]

  • Yong-Chan Jeong, Ji-Tae Shin, Hyoung-Kee Choi
  • LNCS, Vol.3619, pp. 93-101, 2005 August.


Simulation Framework for Wireless Internet Access Network [PDF]

  • Hyoung-Kee Choi, Ji-Tae Shin
  • LNCS, Vol.3515, pp. 453-460, 2005 July.


Modeling the Behavior of the TCP in Web Traffic [PDF]

  • Hyoung-Kee Choi, John A. Copeland
  • LNCS, Vol.3391, pp. 188-197, 2005 January.


Interactive Web Service via Satellite to the Home [PDF]

  • Hyoung-Kee Choi, Osama Qadan, Dolors Sala, John O. Limb, Jeff Meyers
  • IEEE Communication Magazine, Vol.39, pp. 182-190, 2001 March.


A Behavioral Model of Web Traffic [PDF]

  • Hyoung-Kee Choi and John O. Limb
  • IEEE International Conference on Network Protocols (ICNP’99), Toronto, Canada, Oct 31 – Nov. 3, 1999.