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Volume 3 Issue 3

A Proposal for a Privacy-preserving National Identity Card

Yves Deswarte^(a),(b),(*), Sébastien Gambs^(c)

Transactions on Data Privacy 3:3 (2010) 253 - 276

Abstract, PDF

(a) CNRS; LAAS; 7 avenue du Colonel Roche; F-31077 Toulouse; France.

(b) Université de Toulouse; UPS, INSA, INP, ISAE; LAAS; F-31077 Toulouse, France.

(c) Université de Rennes 1 - INRIA / IRISA; Campus Universitaire de Beaulieu; 35042 Rennes; France.

e-mail:Yves.Deswarte @laas.fr; sgambs @irisa.fr

Abstract

In this paper, we propose to replace the national identity card, currently used in many countries, by a personal device that allows its user to prove some binary statements about him while minimizing personal information leakage. The privacy of the user is protected through the use of anonymous credentials that, allows him to prove binary statements about himself to another entity without having to disclose his identity or any unnecessary information. The proposed scheme also prevents the possibility of tracing the user, even if he proves several times the same statement (unlinkability property). A tamper-proof smartcard is used to store the personal information of the user thus protecting his privacy and preventing the risks of forgery at the same time. The user identifies himself to the card via biometrics thus forbidding an unauthorized use in the situationwhere the card is stolen or lost. Two implementation proposals of the privacy-preserving identity card are described and discussed, and should be experimented on Java Cards in a near future. Possible extensions are also proposed as future work.

^* Corresponding author.

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