Author, as appears in the article.: Domingo-Ferrer, Josep; Blanco-Justicia, Alberto; Rafols, Carla
Department: Enginyeria Informàtica i Matemàtiques
URV's Author/s: Blanco Justicia, Alberto / Domingo Ferrer, Josep
Keywords: Smartphones Short-range communications Identity-based encryption Group size accreditation Group discounts Digital signatures Buyer privacy Broadcast encryption
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.
Thematic Areas: Software Safety, risk, reliability and quality Matemática / probabilidade e estatística Information systems Engenharias iv Computer science, theory & methods Computer science, software engineering Computer science, information systems Computer networks and communications Ciência da computação
ISSN: 16155262
Author's mail: alberto.blanco@urv.cat josep.domingo@urv.cat
Author identifier: 0000-0002-1108-8082 0000-0001-7213-4962
Last page: 260
Record's date: 2024-09-07
Journal volume: 17
Papper version: info:eu-repo/semantics/submittedVersion
Link to the original source: https://link.springer.com/article/10.1007/s10207-017-0368-y
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: International Journal Of Information Security. 17 (3): 243-260
APA: Domingo-Ferrer, Josep; Blanco-Justicia, Alberto; Rafols, Carla (2018). Dynamic group size accreditation and group discounts preserving anonymity. International Journal Of Information Security, 17(3), 243-260. DOI: 10.1007/s10207-017-0368-y
Article's DOI: 10.1007/s10207-017-0368-y
Entity: Universitat Rovira i Virgili
Journal publication year: 2018
First page: 243
Publication Type: Journal Publications
Repositori URV