Access Control Encryption for Equality, Comparison, and More

Research output: Contribution to book/anthology/report/proceedingArticle in proceedingsResearchpeer-review

Access Control Encryption (ACE) is a novel paradigm for encryption which allows to control not only what users in the system are allowed to read but also what they are allowed to write. The original work of Damgård et al. [DHO16] introducing this notion left several open questions, in particular whether it is possible to construct ACE schemes with polylogarithmic complexity (in the number of possible identities in the system) from standard cryptographic assumptions. In this work we answer the question in the affirmative by giving (efficient) constructions of ACE for an interesting class of predicates which includes equality, comparison, interval membership, and more. We instantiate our constructions based both on standard pairing assumptions (SXDH) or more efficiently in the generic group model.

Original languageEnglish
Title of host publicationPublic-Key Cryptography – PKC 2017 - 20th IACR International Conference on Practice and Theory in Public-Key Cryptography, Proceedings : 20th IACR International Conference on Practice and Theory in Public-Key Cryptography, Amsterdam, The Netherlands, March 28-31, 2017, Proceedings, Part II
EditorsSerge Fehr
Number of pages31
Volume10175
Place of publicationSpringer, Berlin, Heidelberg
PublisherSpringer VS
Publication year1 Jan 2017
Pages88-118
ISBN (print)978-3-662-54387-0
ISBN (Electronic)978-3-662-54388-7
DOIs
Publication statusPublished - 1 Jan 2017
Event20th IACR International Conference on Practice and Theory in Public-Key Cryptography - Amsterdam, Netherlands
Duration: 28 Mar 201731 Mar 2017
Conference number: 20
https://www.iacr.org/workshops/pkc2017/

Conference

Conference20th IACR International Conference on Practice and Theory in Public-Key Cryptography
Nummer20
LandNetherlands
ByAmsterdam
Periode28/03/201731/03/2017
Internetadresse
SeriesLecture Notes in Computer Science
Volume10175
ISSN0302-9743

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