摘要
密钥认证是保证用户的公钥不被伪造.文章指出卓等人提出的基于辫群的密钥认证方案易受公钥替换攻击.通过修改他们所提方案中注册和证书的生成和认证阶段算法,提出了一个改进的密钥认证方案.该方案在公钥替换攻击下是安全的,并且满足其他安全需求.
Key authentication assures that the public key of user can-not be forged.This paper shows that the key authentication scheme based on braid group which is provided by Zhou and others is liable to public key substitution attack and proposes an improved key authentication scheme which revises the user registration and certificate generation phase and key authentication phase algorithms of it.The scheme is secure against the public key substitution attack and satisfies other essential security requirements.
出处
《杭州师范大学学报（自然科学版）》
CAS
2010年第2期107-110,共4页
Journal of Hangzhou Normal University(Natural Science Edition)
关键词
密钥认证
不可否认性
辫群
key authentication
non-repudiation
braid group
