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Paper 2009/313
Identity Based Group Signatures from Hierarchical Identity-Based Encryption
Nigel P. Smart and 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.
Metadata
- Available format(s)
- Publication info
- Published elsewhere. Unknown where it was published
- Contact author(s)
- nigel @ cs bris ac uk
- History
- 2009-07-01: last of 2 revisions
- 2009-07-01: received
- See all versions
- Short URL
- https://ia.cr/2009/313
- License
-
CC BY