CERTIFIED PSEUDONYMS COLLIGATED WITH MASTER SECRET KEY

Vijayakrishnan Pasupathinathan, Josef Pieprzyk, Huaxiong Wang

2009

Abstract

A pseudonym provides anonymity by protecting the identity of a legitimate user. A user with a pseudonym can interact with an unknown entity and be confident that his/her identity is secret even if the other entity is dishonest. In this work, we present a system that allows users to create pseudonyms from a trusted master public-secret key pair. The proposed system is based on the intractability of factoring and finding square roots of a quadratic residue modulo a composite number, where the composite number is a product of two large primes. Our proposal is different from previously published pseudonym systems, as in addition to standard notion of protecting privacy of an user, our system offers colligation between seemingly independent pseudonyms. This new property when combined with a trusted platform that stores a master secret key is extremely beneficial to an user as it offers a convenient way to generate a large number of pseudonyms using relatively small storage.

Paper Citation

in Harvard Style

Pasupathinathan V., Pieprzyk J. and Wang H. (2009). CERTIFIED PSEUDONYMS COLLIGATED WITH MASTER SECRET KEY . In Proceedings of the International Conference on Security and Cryptography - Volume 1: SECRYPT, (ICETE 2009) ISBN 978-989-674-005-4, pages 190-197. DOI: 10.5220/0002226501900197

in Bibtex Style

@conference{secrypt09,
author={Vijayakrishnan Pasupathinathan and Josef Pieprzyk and Huaxiong Wang},
title={CERTIFIED PSEUDONYMS COLLIGATED WITH MASTER SECRET KEY},
booktitle={Proceedings of the International Conference on Security and Cryptography - Volume 1: SECRYPT, (ICETE 2009)},
year={2009},
pages={190-197},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002226501900197},
isbn={978-989-674-005-4},
}

in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Security and Cryptography - Volume 1: SECRYPT, (ICETE 2009)
TI - CERTIFIED PSEUDONYMS COLLIGATED WITH MASTER SECRET KEY
SN - 978-989-674-005-4
AU - Pasupathinathan V.
AU - Pieprzyk J.
AU - Wang H.
PY - 2009
SP - 190
EP - 197
DO - 10.5220/0002226501900197