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2008 Third International Conference on Availability, Reliability and Security
Fuzzy Private Matching (Extended Abstract)
March 04-March 07
ISBN: 978-0-7695-3102-1
In the private matching problem, a client and a server each hold a set of n input elements. The client wants to privately compute the intersection of these two sets: he learns which elements he has in common with the server (and nothing more), while the server gains no information at all. In certain applications it would be useful to have a fuzzy private matching protocol that reports a match even if two elements are only similar instead of equal. We consider this fuzzy private matching problem, in a semi-honest environment. First we show that the original solution proposed by Freedman et al. is incorrect. Subsequently we present two fuzzy private matching protocols. The first, simple, protocol has a large bit message complexity. The second protocol improves this, but here the client incurs a $O(n)$ factor time complexity.
Index Terms:
fuzzy matching, secure 2-party computation, secret sharing
Citation:
Lukasz Chmielewski, Jaap-Henk Hoepman, "Fuzzy Private Matching (Extended Abstract)," ares, pp.327-334, 2008 Third International Conference on Availability, Reliability and Security, 2008
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