Identity Based Group Signatures from Hierarchical Identity-Based Encryption
نویسندگان
چکیده
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.
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Article history: Received 2 September 2010 Received in revised form 29 February 2012 Accepted 4 April 2012 Available online 17 April 2012
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