计算机应用与软件2013，Vol.30Issue(6)：316-317,328,3.DOI:10.3969/j.issn.1000-386x.2013.06.084
两个无证书签名方案的密码分析
CRYPTANALYSIS OF TWO CERTIFICATELESS SIGNATURE SCHEMES
吴挺1
作者信息
- 1. 广东外语艺术职业学院 广东广州510640
- 折叠
摘要
Abstract
Certificateless cryptography does not need to use certificates and does not suffer from key-escrow problem.Therefore,certificateless cryptography has received much more attention.Recently,Some scholars proposed an efficient certificateless signature scheme respectively.In this paper,we analyse these two schemes and show that neither of them satisfies the property of being unforgeability.We also prove that these two schemes are insecure on replacement attacks against the public key.That is,an adversary could forge a signature for any message of any user by substituting the public key of the user.We also describe the attacking process in detail.关键词
密码分析/无证书签名/公钥替换攻击Key words
Cryptanalysis/ Certificateless signature / Public key replacement attacks分类
信息技术与安全科学引用本文复制引用
吴挺..两个无证书签名方案的密码分析[J].计算机应用与软件,2013,30(6):316-317,328,3.
