Generalized Russian Cards Problem

  • Authors:
  • Zhenhua Duan;Chen Yang

  • Affiliations:
  • Institute of Computing Theory and Technology, Xidian University, Xi'an, China 710071;Institute of Computing Theory and Technology, Xidian University, Xi'an, China 710071

  • Venue:
  • COCOA '09 Proceedings of the 3rd International Conference on Combinatorial Optimization and Applications
  • Year:
  • 2009

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Abstract

This paper investigates Russian Cards problem for the purpose of unconditional secured communication. First, a picking rule and deleting rule as well as safe communication condition are given to deal with the problem with 3 players and 7 cards. Further, the problem is generalized to tackle n players and n (n *** 1) + 1 cards. A new picking rule for constructing the announcement is presented, and a new deleting rule for players to determine each other's cards is formalized. In addition, the safe communication condition is also proved.