Identity-based Conditional Privacy-Preserving Authentication Scheme Resistant to Malicious Subliminal Setting of Ephemeral Secret

Patryk Kozieł, Łukasz Krzywiecki, Damian Stygar

2019

Abstract

In this paper we propose a modification of the Identity Based Conditional Privacy-Preserving Authentication Scheme (CPPA), which is based on Schnorr Signature Scheme (SS). The applicability and the security of the scheme is mainly considered in Intelligent Transportation Systems. We discuss scenarios with subliminal malicious setting of a ephemeral secret. We present a new, stronger security model for the scheme in which we allow the adversary to choose random values used during signing process. We define the SS to be secure if the advantage of the adversary in this model is negligible. Finally we prove the security of the modified Identity Based CPPA in our stronger model.

Paper Citation

in Harvard Style

Kozieł P., Krzywiecki Ł. and Stygar D. (2019). Identity-based Conditional Privacy-Preserving Authentication Scheme Resistant to Malicious Subliminal Setting of Ephemeral Secret.In Proceedings of the 16th International Joint Conference on e-Business and Telecommunications - Volume 2: SECRYPT, ISBN 978-989-758-378-0, pages 492-497. DOI: 10.5220/0007954204920497

in Bibtex Style

@conference{secrypt19,
author={Patryk Kozieł and Łukasz Krzywiecki and Damian Stygar},
title={Identity-based Conditional Privacy-Preserving Authentication Scheme Resistant to Malicious Subliminal Setting of Ephemeral Secret},
booktitle={Proceedings of the 16th International Joint Conference on e-Business and Telecommunications - Volume 2: SECRYPT,},
year={2019},
pages={492-497},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0007954204920497},
isbn={978-989-758-378-0},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 16th International Joint Conference on e-Business and Telecommunications - Volume 2: SECRYPT,
TI - Identity-based Conditional Privacy-Preserving Authentication Scheme Resistant to Malicious Subliminal Setting of Ephemeral Secret
SN - 978-989-758-378-0
AU - Kozieł P.
AU - Krzywiecki Ł.
AU - Stygar D.
PY - 2019
SP - 492
EP - 497
DO - 10.5220/0007954204920497