Welcome to the resource topic for 2009/313
Title:
Identity Based Group Signatures from Hierarchical Identity-Based Encryption
Authors: Nigel P. Smart, Bogdan Warinschi
Abstract:A number of previous papers explored the notion of identity-based group signature. We present a generic construction of identity-based group signatures. Our construction is based on the Naor transformation of a identity-based signature out of an identity-based encryption, adjusted to hierarchical identity-based encryption. We identify sufficient conditions on the underlying HIBE so that the scheme that results from our transformation meets our security definitions. Finally, we suggest a couple of extensions enabled by our construction, one of which is to hierarchical identity-based group signatures.
ePrint: https://eprint.iacr.org/2009/313
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