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Private intersection of regular languages
KTH, School of Computer Science and Communication (CSC), Theoretical Computer Science, TCS.
KTH, School of Computer Science and Communication (CSC), Theoretical Computer Science, TCS. (TCS)ORCID iD: 0000-0002-0074-8786
2014 (English)In: Privacy, Security and Trust (PST), 2014 Twelfth Annual International Conference on / [ed] Ali Miri, Urs Hengartner, Nen-Fu Huang, Audun Jøsang, Joaquín García-Alfaro, IEEE conference proceedings, 2014, 112-120 p.Conference paper (Refereed)
Abstract [en]

This paper addresses the problem of computing the intersection of regular languages in a privacy-preserving fashion. Private set intersection has been addressed earlier in the literature, but for finite sets only. We discuss the various possibilities for solving the problem efficiently, and argue for an approach based on minimal deterministic finite automata (DFA) as a suitable, non-leaking representation of regular language intersection. We propose two different algorithms for DFA minimization in a secure multiparty computation setting, illustrating different aspects of programming based on universal composability and the constraints this sets on existing algorithms. The implementation of our algorithms is based on the programming language SECREC, executing on the SHAREMIND platform for secure multiparty computation. As one application domain we consider fusion of virtual enterprise business processes.

Place, publisher, year, edition, pages
IEEE conference proceedings, 2014. 112-120 p.
National Category
Computer Science
URN: urn:nbn:se:kth:diva-157989DOI: 10.1109/PST.2014.6890930ISI: 000360829800014ScopusID: 2-s2.0-84910093642ISBN: 978-1-4799-3502-4OAI: diva2:773107
Twelfth Annual International Conference on Privacy, Security and Trust,Toronto, Canada, July 23-24, 2014

QC 20150123

Available from: 2014-12-18 Created: 2014-12-18 Last updated: 2016-02-17Bibliographically approved

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