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Paper 2011/200

Fair and Privacy-Preserving Multi-Party Protocols for Reconciling Ordered Input Sets (Extended version)

Georg Neugebauer and Ulrike Meyer and Susanne Wetzel

Abstract

In this paper, we introduce the first protocols for multi-party, privacy-preserving, fair reconciliation of ordered sets. Our contributions are twofold. First, we show that it is possible to extend the round-based construction for fair, two-party privacy-preserving reconciliation of ordered sets to multiple parties using a multi-party privacy-preserving set intersection protocol. Second, we propose new constructions for fair, multi-party, privacy-preserving reconciliation of ordered sets based on multiset operations. We prove that all our protocols are privacy-preserving in the semi-honest model. We furthermore provide a detailed performance analysis of our new protocols and show that the constructions based on multisets generally outperform the round-based approach.

Metadata
Available format(s)
PDF
Category
Cryptographic protocols
Publication info
Published elsewhere. G. Neugebauer, U. Meyer, S. Wetzel: Fair and Privacy-Preserving Multi-Party Protocols for Reconciling Ordered Input Sets, 13th Information Security Conference (ISC), October 2010
Keywords
secure multi-party computationreconciliation protocolsprivacy
Contact author(s)
neugebauer @ umic rwth-aachen de
History
2011-04-25: received
Short URL
https://ia.cr/2011/200
License
Creative Commons Attribution
CC BY
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