An Improved Forward-Secure Multi-Proxy Signature Scheme

被引:0
作者
Zhang, Jun [1 ]
机构
[1] ShaoXing Univ, Dept Comp Sci, Shao Xing, Zhejiang, Peoples R China
来源
THIRD INTERNATIONAL SYMPOSIUM ON ELECTRONIC COMMERCE AND SECURITY WORKSHOPS (ISECS 2010) | 2010年
关键词
Forward Secure; Multi-Proxy Signature; Quadratic Residues; Signature Center (SC); prime root;
D O I
暂无
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
In 2006, Xu proposed a forward multi-proxy signature scheme, but there are some insecurities in Xu's scheme: (1) If the attacker knows a valid signature, anyone can forge some certain messages and cannot detect by the signature verifier. (2) If the attacker is one of the signers, who can forges his public key, and then sign all the unauthorized message. After that, the paper proposed a new forward-secure multi-proxy signature schemes based on quadratic residues. The improved schemes can resist lots of outsider attack and insider attack as above mentioned. The validity of the new scheme can be verified, and it is a secure multi-signature scheme.
引用
收藏
页码:43 / 46
页数:4
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