基于ECC的门限数字签名方案及其安全性  

Threshold Digital Signature Scheme Based on ECC and Its Security

作　　者：秦志光[1] 张险峰[1] 周世杰[1] 刘锦德[1] 

机构地区：[1]电子科技大学计算机科学与工程学院,成都610054

出　　处：《电子科技大学学报》2005年第1期109-112,共4页Journal of University of Electronic Science and Technology of China

基　　金：国家863计划资助项目(2002AA142040)

摘　　要：在基于椭圆曲线密码学的ElGamal数字签名方案的基础上,提出了基于的ElGamal型(t,n)门限数字签名方案;引入了视图的概念,对该方案的安全性进行了分析。该方案无需一个可信中心来处理共享秘密,在签名发布阶段无需秘密通信,具有良好的安全性和执行效率。Based on ECC and ElGamal digital signature scheme, an ElGamal-type threshold digital signature scheme based on ECC is designed. The security of the scheme is analyzed via introducing the concept of views. In this scheme, the trusted center to deal with the sharing secret is eliminated. No secret communication is required in the signature-issuing phase. The scheme is characterized by excellentsecurity as well as high efficiency.

关 键 词：椭圆曲线密码体制 门限数字签名 安全性 秘密共享 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]