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Title:
Efficient group authentication protocols based on human interaction
Authors: Long Hoang Nguyen, A. W. Roscoe
Abstract:We re-examine the needs of computer security in pervasive computing from first principles, specifically the problem of bootstrapping secure networks. We consider the case of systems that may have no shared secret information, and where there is no structure such as a PKI available. We propose several protocols which achieve a high degree of security based on a combination of human-mediated communication and an ordinary Dolev-Yao communication medium. In particular they resist combinatorial attacks on the hash or digest values that have to be compared by human users, seemingly optimising the amount of security they can achieve for a given amount of human effort. We compare our protocols with recent pairwise protocols proposed by, for example, Hoepman and Vaudenay.
ePrint: https://eprint.iacr.org/2009/150
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