05159956

j

05159956 Xie, Yumin Ming, Yang Shi, Feng Muhammad, Kamran Transmutation scheme of coin flipping protocol and utilization. Wuhan Univ. J. Nat. Sci. 11, No. 6, 1911-1914 (2006). 2006 Wuhan University Journals Press, Wuhan; Springer, Heidelberg EN coin flipping protocol transmutation-coin flipping protocol one way function Blum

doi:10.1007/BF02831905

Summary: Coin flipping by telephone protocol(CFP) is utilized in a system to exchange a binary sequence at random between two person apart far from each other. However, CFP cannot be used in a system with many users like in a group environment system. A transmutation of CFP named T-CFP is proposed in this paper. The precondition of T-CFP is the system's user trusts the system center and center's cheating is meaningless at the same time. The significant difference between CFP and T-CFP is that CFP supports only two users while T-CFP can support many users to exchange special information. The security and efficiency of T-CFP are discussed with a detailed example on T-CFP utilization is demonstrated in this paper.