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.
|Translated title of the contribution||Identity based group signatures from hierarchical identity based encryption|
|Title of host publication||Pairings 2009|
|Publisher||Springer Berlin Heidelberg|
|Publication status||Published - 2009|
Bibliographical noteOther page information: 150-170
Conference Proceedings/Title of Journal: Pairings 2009
Other identifier: 2001068