Welcome to the resource topic for 2023/1296
Title:
A note on ``blockchain-assisted authentication and key agreement scheme for fog-based smart grid’’
Authors: Zhengjun Cao, Lihua Liu
Abstract:We show that the scheme [Clust. Comput. 25(1): 451-468, 2022] fails to keep anonymity, not as claimed. The scheme simply acknowledges that user anonymity is equivalent to protecting the target user’s identity against exposure, while its long-term pseudo-identity can be exposed. We want to clarify that the true anonymity means that an adversary cannot attribute different sessions to different target users, even though the adversary cannot recover the true identifier from the long-term pseudo-identifier. We also clarify some misunderstandings in the scheme.
ePrint: https://eprint.iacr.org/2023/1296
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