High-throughput semi-honest secure three-party computation with an honest majority

Toshinori Araki, Jun Furukawa, Yehuda Lindell, Ariel Nof, Kazuma Ohara

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

255 Scopus citations

Abstract

In this paper, we describe a new information-theoretic protocol (and a computationally-secure variant) for secure threeparty computation with an honest majority. The protocol has very minimal computation and communication; for Boolean circuits, each party sends only a single bit for every AND gate (and nothing is sent for XOR gates). Our protocol is (simulation-based) secure in the presence of semi-honest adversaries, and achieves privacy in the client/server model in the presence of malicious adversaries. On a cluster of three 20-core servers with a 10Gbps connection, the implementation of our protocol carries out over 1.3 million AES computations per second, which involves processing over 7 billion gates per second. In addition, we developed a Kerberos extension that replaces the ticketgranting-ticket encryption on the Key Distribution Center (KDC) in MIT-Kerberos with our protocol, using keys/passwords that are shared between the servers. This enables the use of Kerberos while protecting passwords. Our implementation is able to support a login storm of over 35,000 logins per second, which suffices even for very large organizations. Our work demonstrates that high-throughput secure computation is possible on standard hardware.

Original languageEnglish
Title of host publicationCCS 2016 - Proceedings of the 2016 ACM SIGSAC Conference on Computer and Communications Security
PublisherAssociation for Computing Machinery
Pages805-817
Number of pages13
ISBN (Electronic)9781450341394
DOIs
StatePublished - 24 Oct 2016
Event23rd ACM Conference on Computer and Communications Security, CCS 2016 - Vienna, Austria
Duration: 24 Oct 201628 Oct 2016

Publication series

NameProceedings of the ACM Conference on Computer and Communications Security
Volume24-28-October-2016
ISSN (Print)1543-7221

Conference

Conference23rd ACM Conference on Computer and Communications Security, CCS 2016
Country/TerritoryAustria
CityVienna
Period24/10/1628/10/16

Bibliographical note

Publisher Copyright:
© 2016 ACM.

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