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How to Solve Millionaires' Problem with Two Kinds of Cards
New generation computing
AbstractCard-based cryptography, introduced by den Boer aims to realize multiparty computation (MPC) by using physical cards. We propose several efficient card-based protocols for the millionaires' problem by introducing a new operation called Private Permutation (PP) instead of the shuffle used in most of existing card-based cryptography. Shuffle is a useful randomization technique by exploiting the property of card shuffling, but it requires a strong assumption from the viewpoint ofdoi:10.1007/s00354-020-00118-8 fatcat:s5vlwpbomza7zb7d6il53dqhhy