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Erschienen in:
2009 | OriginalPaper | Buchkapitel
Security Weakness in a Provable Secure Authentication Protocol Given Forward Secure Session Key
verfasst von : Mijin Kim, Heasuk Jo, Seungjoo Kim, Dongho Won
Erschienen in: Computational Science and Its Applications – ICCSA 2009
Verlag: Springer Berlin Heidelberg
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Shi, Jang and Yoo recently proposed a provable secure key distribution and authentication protocol between user, service provider and key distribution center(KDC). The protocol was based on symmetric cryptosystem, challenge-response, Diffie-Hellman component and hash function. Despite the claim of provable security, the protocol is in fact insecure in the presence of an active adversary. In this paper, we present the imperfection of Shi et al.’s protocol and suggest modifications to the protocol which would resolve the problem.