Paper 2017/1022 Original: eprint.iacr.org/2017/1022 ↗
Direct Anonymous Attestation from Lattices
Abstract
Direct Anonymous Attestation (DAA) is a complex cryptographic protocol that has been widely deployed in practice, with more than 500 million machines in the market that are already equipped with its hardware, the so-called Trusted Module Platform (TPM). While formalizing the right security model for such a complex protocol has triggered a dense line of research, all the proposed DAA schemes so far are based on number-theoretic problems that are known to be vulnerable to quantum computer attacks. In this paper, we propose the first lattice-based DAA scheme that is secure w.r.t. the most up-to-date security model proposed by Camenisch et al. More precisely, our lattice-based DAA scheme is secure in the Universally Composable (UC) security model. Furthermore, we give (amongst others) the first lattice-based DAA scheme providing user controlled linkability that is realized by means of a new lattice-based MAC/TAG construction which could be of independent interest.
Metadata
- Available format(s)
PDF- Category
- Public-key cryptography
- Publication info
- Preprint.
- History
- 2017-10-25: last updated
- 2017-10-25: published
- Short URL
- https://ia.cr/2017/1022
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2017/1022,
author = {Rachid El Bansarkhani and Ali El Kaafarani},
title = {Direct Anonymous Attestation from Lattices},
howpublished = {Cryptology {ePrint} Archive, Paper 2017/1022},
year = {2017},
url = {https://eprint.iacr.org/2017/1022}
}