摘要
指定接收者的签名是指只有指定的人才能验证签名有效性的一类特殊签名方案.指出WANG等提出的指定接收者认证加密方案、MEI-HE提出的一些指定接收者的签名方案都无法抵抗内部伪造攻击.为克服这些方案的安全性弱点,给出了改进方案.
Designated-receiver signature scheme is a kind of special signature, which the designated receiver can only check the validity of the signature. It is shown that WANG et al's authenticated encryption scheme for specified re ceiver, and MEI-HE's some signature schemes with specified receiver are all insecure against the insider forgery attack. In addition, the improved schemes are presented to overcome the weakness.
出处
《浙江大学学报(理学版)》
CAS
CSCD
北大核心
2008年第5期517-520,共4页
Journal of Zhejiang University(Science Edition)
基金
973项目资助(No.2006CB30310X)
国家自然科学基金资助项目(No.10671051)
浙江省自然科学基金资助项目(No.Y105067)
浙江省教育厅科技计划项目(No.0561XP49)
关键词
数字签名
指定接收者
内部伪造攻击
digitial signature
designated receiver
insider forgery attack