The security of the DAA standard and all existing schemes is analyzed in the random oracle model. We provide the first constructions of DAA in the standard model, that is, without relying on random oracles.
As a building block for our schemes, we construct the first efficient standard-model signatures of knowledge, which have many applications beyond DAA.
Category / Keywords: cryptographic protocols / DAA, group signatures, signatures of knowledge, standard model. Date: received 17 Aug 2012 Contact author: ghadafi at cs bris ac uk Available format(s): PDF | BibTeX Citation Version: 20120818:040356 (All versions of this report) Discussion forum: Show discussion | Start new discussion