Improvement on Tzeng-Tzeng＇s Robust Forward-Secure Signature Schemes with Proactive Security  

作　　者：QIU Gang WANG Hong XIAO Hong XIAO Guozhen 

机构地区：[1]National Key Laboratory of ISN, Xidian University, Xi＇an 710071, China [2]Department of Computer Science and Technology, Huaibei Coal Normal College, Huaibei 235000, China

出　　处：《Chinese Journal of Electronics》2009年第1期155-158,共4页电子学报（英文版）

基　　金：This work is supported by the National Natural Science Foundation of China （No.60773121）.

摘　　要：The main efficient scheme but needing a manager, proposed by W.G.Tzeng and Z.J.Tzeng in PKC＇01, was investigated. We present an improved fully distributed forward-secure signature scheme without a manager based on Tzeng-Tzeng Scheme. The improvement is achieved through a secure distributed key generation protocol and a modified key-evolving procedure. The security proof of our scheme is also given.

关 键 词：Forward-secure SIGNATURE Verifiable secret sharing Distributed key generation Threshold cryptography 

分 类 号：TP309[自动化与计算机技术—计算机系统结构] TP393.08[自动化与计算机技术—计算机科学与技术]