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publications
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Your Watch Can Watch You! Gear Up For The Broken Privilege Pitfalls In The Samsung Gear Smartwatch
Dongsung Kim and Hyoung-Kee Choi
Def Con 26, Aug. 2018. [PPT]
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Secure and Efficient Buding Updates in Host-Based Distributed Mobility Management
Seyeong Lee, Hyoung-Kee Choi, Ejin Kim and Jong-Hyouk Lee
Wireless Networks, Dec. 2017. [PDF]
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A Healthcare Information System for Secure Delivery and Remote Management of Medical Records
Hyoung-Kee Choi, Ki-Eun Shin and Hyoungshick Kim
IEICE Transactions on Information and Systems, Apr. 2016. [PDF]
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A Group-based Security Protocol for Machine-type Communications in LTE-Advanced
Daesung Choi, Hyoung-Kee Choi and Se-Young Lee
Wireless Networks, Aug. 2015. [PDF]
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A Group-based Security Protocol for Machine Type Communications in LTE-Advanced
Daesung Choi, Sungdae Hong and Hyoung-Kee Choi
IEEE International Conference on Computer Communications (INFOCOM)
Toronto, Canada, Apr. 27 ~ May 2, 2014. Best Poster Award
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Security Analysis of Handover key Management in 4G LTE/SAE Network
Chan-Kyu Han and Hyoung-Kee Choi
IEEE Transaction on Mobile Computing, pp 457 - 468. Feb. 2014. [PDF][Extended]
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Improvements on Hsiang and Shih's Remote User Authentication Scheme using Smart Cards
Jung-Yoon Kim and Hyoung-Kee Choi
IEICE Transaction on Information and Systems, pp 2393 - 2400, Oct. 2012. [PDF]
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An Enhanced Security Protocol for VANET-based Entertainment Services
Jung-Yoon Kim and Hyoung-Kee Choi
IEICE Transaction on Communications, pp. 2245 - 2256, Jul. 2012. [PDF]
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Further Improved Remote User Authentication Scheme
Jung-Yoon Kim, Hyoung-Kee Choi and John A. Copeland
IEICE Transaction on Fundamentals of Electronics, Communications and Computer Sciences, pp. 1426 - 1433, Jun. 2011. [PDF]
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Secure and Efficient Protocol for Vehicular Ad Hoc Network with Privacy Preservation
Hyoung-Kee Choi, In-Hwan Kim and Jae-Chern Yoo
EURASIP Journal on Wireless Communications and Networking, Jan. 2011. [PDF]
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Weakness of Sun et al.'s Conditional Access System in Pay-TV Broadcasting Systems
Jung-Yoon Kim and Hyoung-Kee Choi
IEEE Transactions on Multimedia, pp. 337 - 340, Jun. 2010. [PDF] [Extended]
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Building Femtocell More Secure with Improved Proxy Signature
Chan-Kyu Han and Hyoung-Kee Choi
IEEE Global Communications Conference (GLOBECOM)
Honolulu, USA, Nov. 30 - Dec. 4, 2009. [PDF] [PPT]
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Effective Discovery of Attacks using Entropy of Packet Dynamics
Chan-Kyu Han and Hyoung-Kee Choi
IEEE Networks pp.4-12, Sep. 2009. [PDF] [Extended]
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Evaluation of Authentication Signaling Loads in 3GPP LTE/SAE Networks
Chan-Kyu Han and Hyoung-Kee Choi
IEEE Local Computer Networks (LCN)
Zürich, Switzerland, Oct. 20 - 23, 2009. [PDF] [PPT]
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A Self-Certified Signcryption Scheme for Mobile Communications
Ki-Eun Shin and Hyoung-Kee Choi
USENIX Security Symposium '09 (USENIX Security)
Montreal, Canada, Aug. 10 - 14, 2009. Abstract
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A Secure and Lightweight Approach for Routing Optimization in Mobile IPv6
Sehwa Song, Hyoung-Kee Choi and Jung-Yoon Kim
EURASIP Journal on Wireless Communications and Networking, Jul. 2009. [PDF]
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A Novel Authentication Scheme for Binding Update in Mobile IPv6
Sehwa Song and Hyoung-Kee Choi
USENIX Security Symposium '08 (USENIX Security)
San Jose, USA, Jul. 28 - Aug. 01, 2008. Abstract
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Evaluation of Security Protocols for the Session Initiation Protocol
Eun-Chul Cha, Hyoung-Kee Choi and Sung-Jae Cho
IEEE International Conference on Computer Communications and Networks (ICCCN)
Honolulu, USA, Aug. 13 - 16, 2007. [PDF]
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Interactive Web service via satellite to the
home
Hyoung-Kee Choi, Osama Qadan, Dolors Sala, John O. Limb and Jeff Meyers
IEEE Communication Magazine, Mar., 2001. [PDF]
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A Behavioral
Model of Web Traffic
Hyoung-Kee Choi
and John O. Limb
IEEE International Conference on Network Protocols (ICNP'99)
Toronto, Canada, Oct 31 - Nov. 3, 1999. [PDF]
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abstract
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A Self-Certified Signcryption Scheme for Mobile Communications
Securing mobile communication is challenging because communicating entities (i.e., mobile devices) are resources-constraint and mobile networks restricts the Internet access. Hence, cryptosystems developed for mobile communications should be efficient and overhead associated with the security protocol needs to be minimal. The intervention by the conventional trusted authority should be also minimized because of the restricted access to the outside network. We propose a self-certified
signcryption scheme to withstand such obstacles in mobile communication.
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A Novel Authentication Scheme for Binding Update in Mobile IPv6
Mobility support is an essential part of IPv6 because we have recently seen sharp increases in the number of mobile users. A security weakness in mobility support has a direct consequence on the security of users because it obscures the distinction between devices and users. Unfortunately, a malicious and unauthenticated message in mobility support may open a security hole for intruders by supplying an easy means to launch an attack that hijacks an ongoing session to a location chosen
by the intruder. In this paper, we show how to thwart such a session hijacking attack by authenticating a suspicious message. Although much research has been directed toward addressing similar problems, we contend that our proposed protocol would outperform other proposals that have been advanced. This claim is based on observations that the proposed protocol has strengths such as light computational load, backward compatibility, and dependable operation.
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