Design and realization of threshold secret sharing scheme with random weights  

作　　者：Ye Zhenjun Fang Zhenming Wang Chunfeng Meng Fanzhen 

机构地区：[1]Dept. of Mathematics and Physics, North China Electric Power Univ., Beijing 102206, P. R. China [2]School of Management, Tianjin Univ., Tianjin 300072, P. R. China [3]School of Science, Tianjin Univ., Tianjin 300072, P. R. China

出　　处：《Journal of Systems Engineering and Electronics》2009年第5期1091-1095,共5页系统工程与电子技术（英文版）

基　　金：supported by the National Preeminent Youth Foundation(70225002);the Doctor Foundation of North China Electric Power University(200822029).

摘　　要：A new threshold secret sharing scheme is constructed by introducing the concept of share vector, in which the number of shareholders can be adjusted by randomly changing the weights of them. This kind of scheme overcomes the limitation of the static weighted secret sharing schemes that cannot change the weights in the process of carrying out and the deficiency of low efficiency of the ordinary dynamic weighted sharing schemes for its resending process. Thus, this scheme is more suitable to the case that the number of shareholders needs to be changed randomly during the scheme is carrying out.A new threshold secret sharing scheme is constructed by introducing the concept of share vector, in which the number of shareholders can be adjusted by randomly changing the weights of them. This kind of scheme overcomes the limitation of the static weighted secret sharing schemes that cannot change the weights in the process of carrying out and the deficiency of low efficiency of the ordinary dynamic weighted sharing schemes for its resending process. Thus, this scheme is more suitable to the case that the number of shareholders needs to be changed randomly during the scheme is carrying out.

关 键 词：random weight secret sharing share vector. 

分 类 号：TP311.13[自动化与计算机技术—计算机软件与理论] TN918.1[自动化与计算机技术—计算机科学与技术]