Short Group Signatures

Dan Boneh; Xavier Boyen; Hovav Shacham

Paper 2004/174

Short Group Signatures

Dan Boneh, Xavier Boyen, and Hovav Shacham

Abstract

We construct a short group signature scheme. Signatures in our scheme are approximately the size of a standard RSA signature with the same security. Security of our group signature is based on the Strong Diffie-Hellman assumption and a new assumption in bilinear groups called the Decision Linear assumption. We prove security of our system, in the random oracle model, using a variant of the security definition for group signatures recently given by Bellare, Micciancio, and Warinschi.

Metadata

Available format(s): PDF PS
Category: Public-key cryptography
Publication info: Published elsewhere. An extended abstract appears in CRYPTO 2004.
Keywords: group signatures
Contact author(s): eprint @ boyen org
History: 2004-09-03: last of 3 revisions; 2004-07-21: received; See all versions
Short URL: https://ia.cr/2004/174
License: CC BY

BibTeX

@misc{cryptoeprint:2004/174,
      author = {Dan Boneh and Xavier Boyen and Hovav Shacham},
      title = {Short Group Signatures},
      howpublished = {Cryptology {ePrint} Archive, Paper 2004/174},
      year = {2004},
      url = {https://eprint.iacr.org/2004/174}
}