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Dynamic group size accreditation and group discounts preserving anonymity

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dc.contributor.author Domingo-Ferrer, Josep
dc.contributor.author Blanco-Justicia, Alberto
dc.contributor.author Ràfols, Carla
dc.date.accessioned 2021-03-30T09:19:32Z
dc.date.available 2021-03-30T09:19:32Z
dc.date.issued 2018
dc.identifier.citation Domingo-Ferrer J, Blanco-Justicia A, Ràfols C. Dynamic group size accreditation and group discounts preserving anonymity. International Journal of Information Security. 2018 Jun;17(3):243-60. DOI: 10.1007/s10207-017-0368-y
dc.identifier.issn 1615-5262
dc.identifier.uri http://hdl.handle.net/10230/46990
dc.description.abstract Group discounts are used by vendors and authorities to encourage certain behaviors. For example, group discounts can be applied to highway tolls to encourage ride sharing, or by museum managers to ensure a minimum number of visitors and plan guided tours more efficiently. We show how group discounts can be offered without forcing customers to surrender their anonymity, as long as customers are equipped with some form of autonomous computing device (e.g. smartphone, tablet or computer). Specifically, we present a protocol suite for privacy-aware group discounts that allows a group of customers to prove how many they are without disclosing their identities. The group does not need to be a stable one, but can have been formed on the fly. Coupled with an anonymous payment system, this makes group discounts compatible with buyer privacy (in this case, buyer anonymity). We present a detailed complexity analysis, we give simulation results, and we report on a pilot implementation.
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher Springer
dc.relation.ispartof Journal of Information Security. 2018 Jun;17(3):243-60.
dc.rights © Springer The final publication is available at Springer via http://dx.doi.org/10.1007/s10207-017-0368-y
dc.title Dynamic group size accreditation and group discounts preserving anonymity
dc.type info:eu-repo/semantics/article
dc.identifier.doi http://dx.doi.org/10.1007/s10207-017-0368-y
dc.subject.keyword Buyer privacy
dc.subject.keyword Group size accreditation
dc.subject.keyword Group discounts
dc.subject.keyword Digital signatures
dc.subject.keyword Smartphones
dc.subject.keyword Short-range communications
dc.rights.accessRights info:eu-repo/semantics/embargoedAccess
dc.type.version info:eu-repo/semantics/acceptedVersion


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