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Cryptanalysis of an Improved User Authentication Scheme with User Anonymity for Wireless Communications
IEICE TRANSACTIONS on Information and Systems Vol.E95-D No.6 pp.1687-1689
Publication Date: 2012/06/01
Online ISSN: 1745-1361
Print ISSN: 0916-8532
Type of Manuscript: LETTER
Category: Information Network
Full Text: PDF(61.8KB)
A user identity anonymity is an important property for roaming services. In 2011, Kang et al. proposed an improved user authentication scheme that guarantees user anonymity in wireless communications. This letter shows that Kang et al.'s improved scheme still cannot provide user anonymity as they claimed.