Deniable Anonymous Group Authentication (poster)
Author(s): Ewa Syta, Bryan Ford

Date: May 2013
Publication: 34th IEEE Symposium on Security and Privacy, SP '13
Publisher: IEEE
Source 1: http://www.ieee-security.org/TC/SP2013/posters/Ewa_Syta.pdf

Abstract:
We present a deniable, anonymous group authentication (DAGA) protocol that provides anonymity, proportionality, deniability and forward anonymity. The anonymity property allows a user to authenticate as some group member without revealing exactly which one. Proportionality ensures that a client can authenticate only once as a unique group member per round. Deniability makes it possible to deny ever participating in a protocol. Finally, forward anonymity offers protection in case of a compromise of userís private key after the protocolís completion.



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