Document Zbl 1369.94573

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An efficient solution to generalized Yao’s millionaires problem. (English) Zbl 1369.94573

Bull. Belg. Math. Soc. - Simon Stevin 20, No. 3, 425-433 (2013).

Summary: We study a generalized version of Yao’s Millionaires problem. Namely, \(n\) millionaires want to find out the \(k\) richest persons among them without revealing their amounts of wealth. We propose an efficient solution that takes \(2n\) secure comparison operations on average to find out the correct result. Our solution protects the privacy of every participant.

MSC:

94A60

Cryptography

Keywords:

Yao’s millionaires problem; privacy-preserving; secure comparison

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