Transmutation Scheme of Coin Flipping Protocol and Utilization  

作　　者：XIE Yumin MING Yang SHI Feng MUHAMMAD Kamran 

机构地区：[1]Department of Computer Science and Engineering, Beijing Institute of Technology, Beijing 100081, China [2]State Key Laboratory of Integrated Service Networks, Xidian University, Xi＇an 710071, Shaanxi, China

出　　处：《Wuhan University Journal of Natural Sciences》2006年第6期1911-1914,共4页武汉大学学报（自然科学英文版）

基　　金：Supported by the National Natural Science Foun-dation of China(60473072)

摘　　要：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 he 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.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 he 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.

关 键 词：coin flipping protocol transmutation-coin flipping protocol one way function Blum 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]