摘要
环签名算法种类很多,大多数算法设计基于双线性对或大素数难分解,在安全性和运算速度方面有待提高。与基于椭圆曲线离散对数相比,双线性对的优势并不明显,因为它无法运用一样长度的密钥提供同样的安全性能。为了能够提升方案的安全性以及能够保证签名者身份的完全匿名性,基于SM2商用密码算法设计了一个新的环签名方案。利用单向函数设计签名算法,并对方案的安全性进行了严格证明,保证了新方案的正确性、安全性与隐匿性。
There are many types of ring signature algorithms.Most of the algorithm designs are based on bilinear pairs or large prime numbers that are difficult to decompose,and needs to be improved in terms of security and operation speed.Compared with the discrete logarithms based on elliptic curves,the advantages of bilinear pairs is not obvious,and it is impossible to provide the same security performance with keys of the same length.In order to improve the security of the scheme and ensure the complete anonymity of the signer’s identity,a new ring signature scheme is designed based on the SM2 commercial cryptographic algorithm,which uses a one-way function to design a signature algorithm,and rigorously proves the security of the scheme to ensure the correctness,security and concealment of the new scheme.
作者
韩宝杰
李子臣
HAN Baojie;LI Zichen(Beijing Institute of Graphic Communication,Beijing 102600,China)
出处
《通信技术》
2021年第7期1721-1725,共5页
Communications Technology
基金
国家自然科学基金(No.61370188)
北京市教委科研计划一般项目(No.KM202010015009)
北京市教委科研计划资助(No.KM202110015004)
北京印刷学院博士启动金项目(No.27170120003/020)。
关键词
SM2密码算法
椭圆曲线
数字签名
环签名
匿名性
SM2 cryptographic algorithm
elliptic curve
digital signature
ring signature
anonymity
