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Erschienen in:
2013 | OriginalPaper | Buchkapitel
Securely Computing the Three-Input Majority Function with Eight Cards
verfasst von : Takuya Nishida, Takaaki Mizuki, Hideaki Sone
Erschienen in: Theory and Practice of Natural Computing
Verlag: Springer Berlin Heidelberg
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Assume that Alice, Bob and Carol, each of whom privately holds a one-bit input, want to learn the value of the majority function of their inputs without revealing more of their own secret inputs than is necessary. In this paper, we show that such a secure majority computation can be done with a deck of real cards; specifically, the three players can learn only the majority of their inputs using eight physical cards—four black cards and four red cards—with identical backs.