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http://dx.doi.org/10.13089/JKIISC.2007.17.3.81

A UMTS Key Agreement Protocol Providing Privacy and Perfect Forward Secrecy  

Kim, Dae-Young (Hanyang University)
Cui, Yong-Gang (Hanyang University)
Kim, Sana-Jin (Korea University of Technology and Education)
Oh, Hee-Kuck (Hanyang University)
Publication Information
Journal of the Korea Institute of Information Security & Cryptology / v.17, no.3, 2007 , pp. 81-90 More about this Journal
Abstract
In the UMTS (Universal Mobile Telecommunication System), which is one of 3G mobile communication standards, the protocol called UMTS AKA (Authentication and Key Agreement) is used to authenticate mobile stations. However, the UMTS AKA protocol has some weakness, including network bandwidth consumption between a SN (Serving Network) and a HN (Home Network) and SQN (SeQuence Number) synchronization. In this paper, we propose a new improved protocol for UMTS that overcomes UMTS AKA weakness. Our protocol solves the privacy problem caused by IMSI (International Mobile Subscriber Identity)'s disclosure and provides perfect forward secrecy using ECDH (Elliptic Curve Diffie Hellman).
Keywords
UMTS; Perfect Forward Secrecy; Privacy;
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  • Reference
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