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A Non-Sequential Unsplittable Privacy-Protecting Multi-Coupon Scheme

dc.contributor.authorEscalante B., Alberto N.
dc.contributor.authorLöhr, Hans
dc.contributor.authorSadeghi, Ahmad-Reza
dc.contributor.editorHerzog, Otthein
dc.contributor.editorRödiger, Karl-Heinz
dc.contributor.editorRonthaler, Marc
dc.contributor.editorKoschke, Rainer
dc.date.accessioned2019-05-15T09:04:53Z
dc.date.available2019-05-15T09:04:53Z
dc.date.issued2007
dc.description.abstractA multi-coupon (MC ) represents a collection of k coupons that a user can redeem to a vendor in exchange for a benefit (some good or service). Recently, Chen et al. [CEL+07] proposed an unforgeable privacy-protecting multi-coupon scheme (MCS), which discourages sharing of coupons through a property called unsplitta- bility, where the coupons of a single MC cannot be separately used by two users. Pre- vious MCSs relied on the all-or-nothing principle, a weaker form of unsplittability, where sharing a single coupon implies sharing the whole multi-coupon. The construc- tion proposed in [CEL+07] supports coupons with practical attributes: independent benefits, and validity periods (e.g., expiration dates). However, it has the disadvantage that the coupons contained in an MC must be redeemed in sequential order. Hence, it is suitable for fewer applications. In this paper, we address this problem and propose a scheme that satisfies the same set of security requirements, supports the same practical attributes, and offers similar efficiency, but in which users are able to choose which coupon they redeem.en
dc.identifier.isbn978-3-88579-206-1
dc.identifier.pissn1617-5468
dc.identifier.urihttps://dl.gi.de/handle/20.500.12116/22477
dc.language.isoen
dc.publisherGesellschaft für Informatik e. V.
dc.relation.ispartofInformatik 2007 – Informatik trifft Logistik – Band 2
dc.relation.ispartofseriesLecture Notes in Informatics (LNI) - Proceedings, Volume P-110
dc.subjectCoupon
dc.subjectprivacy
dc.subjectunsplittability
dc.subjectunlinkability
dc.subjectnon-sequential
dc.titleA Non-Sequential Unsplittable Privacy-Protecting Multi-Coupon Schemeen
dc.typeText/Conference Paper
gi.citation.endPage188
gi.citation.publisherPlaceBonn
gi.citation.startPage184
gi.conference.date24.-27. September 2007
gi.conference.locationBremen
gi.conference.sessiontitleRegular Research Papers

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