一种基于环签名和短签名的可净化签名方案  

Sanitizable Signature Scheme Based on Ring Signature and Short Signature

作　　者：张君何 周清雷[1] 韩英杰[1] ZHANG Jun-he;ZHOU Qing-lei;HAN Ying-Jie(School of Information Engineering,Zhengzhou University,Zhengzhou 450000,China)

机构地区：[1]郑州大学信息工程学院,郑州450000

出　　处：《计算机科学》2020年第S01期386-390,399,共6页Computer Science

基　　金：国家重点研发计划项目(2016YFB0800100);国家自然科学基金面上项目(61572444)。

摘　　要：在现有的能够达到完全保密性要求的可净化数字签名方案中,基于群签名的方案因为效率较低而不够实用,而基于零知识证明的方案虽然效率较高但安全性较低。因此,文中提出了一种基于环签名和短签名的可净化数字签名方案,可满足可净化数字签名的不可伪造性、不可变形、透明性、完全保密性及可审计性5项基本安全需求,同时具有相对于基于零知识证明方案更强的可审计性和较高运算效率,具有较强的实用性。Among the existing sanitizable signature schemes that achieve full security requirements,schemes based on group signatures are not practical due to their low efficiency,while those based on zero-knowledge proof are more efficient,but the security is poor.Therefore,this paper proposes a new sanitizable signature scheme based on ring signature and short signature.It can meet the five fundamental security requirements of sanitizable signatures,i.e.,unforgeability,immutability,transparency,full privacy and auditability.Meanwhile,it has stronger auditability and higher computational efficiency than the zero-knowledge proof based scheme,and is more practical.

关 键 词：可净化数字签名 可审计性 数字签名 可转换环签名 短签名 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]