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Erschienen in:
2019 | OriginalPaper | Buchkapitel
Cryptanalysis of Improved and Provably Secure Three-Factor User Authentication Scheme for Wireless Sensor Networks
verfasst von : Jihyeon Ryu, Taeui Song, Jongho Moon, Hyoungshick Kim, Dongho Won
Erschienen in: Computational Science and Technology
Verlag: Springer Singapore
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Wireless sensor networks are applied in various areas like smart grid, environmental monitoring, health care, and security and surveillance. It applies to many fields, but as the utilization is higher, security becomes more important. Recently, the authentication scheme for the environment of wireless sensor network has also been studied. Wu et al. has announced a three-factor user authentication scheme claiming to be resistant to different types of attacks and maintain various security attributes. However, their proposal has several fatal vulnerabilities. First, it is vulnerable to the outsider attack. Second, it is exposed to user impersonation attack. Third, it does not satisfy user anonymity. Therefore, in this paper, we describe these vulnerabilities and prove Wu et al.’s scheme is unsafe.