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Cryptanalysis and Improved of an Efficient Partially Blind Signature Scheme
Author(s): 
Pages: 32-35
Year: Issue:  1
Journal: Journal of Yunan Normal University(Natural Sciences Edition)

Keyword:  基于身份部分盲签名盲性双线性对;
Abstract: 对最近利用椭圆曲线上的双线性对提出的一种基于身份的部分盲签名方案进行了密码学分析,指出该方案无法满足盲性,盲签名人可以将自己在签名协议中的签名和签名的消息联系起来从而跟踪消息的拥有者,并给出了攻击方法.针对此方案的缺陷,提出了改进的方案,并证明改进后的方案是安全的,可抵抗签名人的恶意追踪.
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