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Weaknesses in an Anonymous Authentication Scheme for Roaming Service in Global Mobility Networks

Authors
Youn, Taek-YoungPark, Young-HoLim, Jongin
Issue Date
7월-2009
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Keywords
Security; anonymous authentication; mobile communication
Citation
IEEE COMMUNICATIONS LETTERS, v.13, no.7, pp.471 - 473
Indexed
SCIE
SCOPUS
Journal Title
IEEE COMMUNICATIONS LETTERS
Volume
13
Number
7
Start Page
471
End Page
473
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/119720
DOI
10.1109/LCOMM.2009.090488
ISSN
1089-7798
Abstract
Recently, Chang, Lee, and Chiu proposed an enhanced anonymous authentication scheme which permits mobile users to anonymously enjoy roaming service in global mobile networks. In this letter, we show that their scheme fails to achieve the anonymity by providing four attack strategies. Moreover, we show that anyone can recover a mobile user's session keys by using the identity of the mobile user. Hence, Chang et al.'s scheme cannot provide secure key establishing service since an adversary can recover the identity of a mobile user by performing one of our attacks.
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