Identity Based Group Signatures from Hierarchical Identity-Based Encryption

Nigel P.  Smart; Bogdan Warinschi

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): PDF
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

BibTeX

@misc{cryptoeprint:2009/313,
      author = {Nigel P.  Smart and Bogdan Warinschi},
      title = {Identity Based Group Signatures from Hierarchical Identity-Based Encryption},
      howpublished = {Cryptology {ePrint} Archive, Paper 2009/313},
      year = {2009},
      url = {https://eprint.iacr.org/2009/313}
}