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[Author] Yutaka KATAYAMA(1hit)

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  • Reshufflable and Laziness Tolerant Mental Card Game Protocol

    Kaoru KUROSAWA  Yutaka KATAYAMA  Wakaha OGATA  

     
    PAPER

      Vol:
    E80-A No:1
      Page(s):
    72-78

    This paper presents a reshufflable and laziness tolerant mental card game protocol. First, our protocol can reshuffle any subset of cards. For example, some opened cards and some face down cards can be shuffled together. Next, we consider two types of honest players, currently active and currently nonactive. A player is currently nonactive if he dropped out the game or he declared "pass" and has not declared "rejoin" yet. In the proposed protocol, if more than half of the players are currently active, they can play the game. In this case, the privacy of the currently nonactive players are kept secret.