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TITLE:
Provably secure public-key encryption with conjunctive and subset keyword search - imarina:5869505

URV's Author/s:Farràs Ventura, Oriol / Ribes Gonzalez, Jordi
Author, as appears in the article.:Farràs O; Ribes-González J
Author's mail:jordi.ribes@urv.cat
oriol.farras@urv.cat
Author identifier:0000-0001-6329-7380
0000-0002-7495-5980
Journal publication year:2019
Publication Type:Journal Publications
ISSN:16155262
APA:Farràs O; Ribes-González J (2019). Provably secure public-key encryption with conjunctive and subset keyword search. International Journal Of Information Security, 18(5), 533-548. DOI: 10.1007/s10207-018-00426-7
Papper original source:International Journal Of Information Security. 18 (5): 533-548
Abstract:© 2019, Springer-Verlag GmbH Germany, part of Springer Nature. Public-key encryption with keyword search (PEKS) schemes enable public key holders to encrypt documents, while the secret key holder is able to generate queries for the encrypted data. In this paper, we present two PEKS schemes with extended functionalities. The first proposed scheme supports conjunctive queries. That is, it enables searching for encrypted documents containing a chosen list of keywords. We prove the computational consistency of our scheme, and we prove security under the asymmetric DBDH assumption. We show that it improves previous related schemes in terms of efficiency and in terms of index and trapdoor size. The second proposed scheme supports subset queries and some more general predicates. We prove the computational consistency of our scheme, and we prove our scheme secure under the p-BDHI assumption. We show that it improves previous related schemes in terms of efficiency and expressiveness. Moreover, unlike previous related schemes, it admits an arbitrary keyword space.
Article's DOI:10.1007/s10207-018-00426-7
Link to the original source:https://link.springer.com/article/10.1007/s10207-018-00426-7
Papper version:info:eu-repo/semantics/acceptedVersion
licence for use:https://creativecommons.org/licenses/by/3.0/es/
Department:Enginyeria Informàtica i Matemàtiques
Licence document URL:https://repositori.urv.cat/ca/proteccio-de-dades/
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
Keywords:Subset keyword search
Searchable encryption
Public-key encryption with keyword search
Identity-based encryption
Conjunctive keyword search
Attacks
Entity:Universitat Rovira i Virgili
Record's date:2023-02-22
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