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dc.contributor.authorBorges Llorens, Ricard
dc.contributor.authorSebé Feixas, Francesc
dc.description.abstractNowadays, the use of electronic tickets in public transport is a reality. Several mobile phone-based e-ticket systems have been proposed so far. Even so, very few of them include reusability in the sense that a single e-ticket allows to make several journeys. Although the identity of users is usually hidden behind a pseudonym, the existing proposals providing reusability allow the system to link all the journeys made with a given e-ticket. In this paper we present a privacy-preserving construction allowing to endow a mobile phone-based e-ticket system with reusability. The privacy of users is proven to be preserved even assuming an internal attacker with full access to all the information managed by the system servers. All the sensitive interactions of a user with the system keep anonymous and unlinkable. Further, as a result of an inspection, the system is only able to determine whether the inspected user is allowed to make the current journey.ca_ES
dc.description.sponsorshipThis work was supported in part by the Spanish Ministry of Science, Innovation, and Universities, under Project MTM2017-83271-R.ca_ES
dc.relationinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MTM2017-83271-R/ES/CRIPTOGRAFIA Y CODIGOS PARA APLICACIONES SEGURAS Y FIABLES/ca_ES
dc.relation.isformatofReproducció del document publicat a
dc.relation.ispartofIEEE Access, 2020, vol. 8, p. 101386-101397ca_ES
dc.rightscc-by (c) Sebé et al., 2020ca_ES
dc.subjectCryptographic protocolsca_ES
dc.subjectData privacyca_ES
dc.subjectInformation securityca_ES
dc.subjectIntelligent transportation systemsca_ES
dc.titleA Construction for Providing Reusability to Mobile Phone-Based e-Ticketsca_ES

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cc-by (c) Sebé et al., 2020
Except where otherwise noted, this item's license is described as cc-by (c) Sebé et al., 2020