Efficient fuzzy matching and intersection on private datasets

Ye, Qingsong, Steinfeld, Ron, Pieprzyk, Josef, & Wang, Huaxiong (2010) Efficient fuzzy matching and intersection on private datasets. Lecture Notes in Computer Science : Information, Security and Cryptology – ICISC 2009, 5984, pp. 211-228.

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Abstract

At Eurocrypt’04, Freedman, Nissim and Pinkas introduced a fuzzy private matching problem. The problem is defined as follows. Given two parties, each of them having a set of vectors where each vector has T integer components, the fuzzy private matching is to securely test if each vector of one set matches any vector of another set for at least t components where t < T. In the conclusion of their paper, they asked whether it was possible to design a fuzzy private matching protocol without incurring a communication complexity with the factor (T t ) . We answer their question in the affirmative by presenting a protocol based on homomorphic encryption, combined with the novel notion of a share-hiding error-correcting secret sharing scheme, which we show how to implement with efficient decoding using interleaved Reed-Solomon codes. This scheme may be of independent interest. Our protocol is provably secure against passive adversaries, and has better efficiency than previous protocols for certain parameter values.

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ID Code: 69705
Item Type: Journal Article
Refereed: Yes
Additional Information: 12th International Conference, Seoul, Korea, December 2-4, 2009, Revised Selected Papers
Keywords: Private matching, Private set intersection, Fuzzy private matching, Homomorphic encryption, Error correction, Secret sharing
DOI: 10.1007/978-3-642-14423-3_15
ISSN: 0302-9743
Divisions: Current > Schools > School of Electrical Engineering & Computer Science
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2010 Springer-Verlag Berlin Heidelberg
Deposited On: 02 Apr 2014 22:19
Last Modified: 27 Jul 2014 02:43

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