摘要
对文献[3]的改进方案进行了分析,并提出了新的多重数字签名方案。新方案不仅能抵抗合谋作弊攻击,而且还具有前向安全特性,即使所有签名人的签名密钥被泄露,曾经产生的多重数字签名依然有效。
The scheme improved by Lu et al was analyzed. And showed that their scheme was still insecure, then a new multisignature scheme was proposed. The scheme propose not only can withstand the collude attack, but also has the property of forward secure. An adversary can not forge muhisignature pertaining to the past even if has gotten the current all signatures＇keys, that is, previous generated multisignature remains valid.
出处
《计算机应用》
CSCD
北大核心
2005年第10期2294-2295,2298,共3页
journal of Computer Applications
基金
国家自然科学基金资助项目(6173022)
广东省自然科学基金资助项目(博士启动资金)
关键词
密码学
多重签名
否认
前向安全
cryptography
muhisignature
deny
forward security
