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对一类代理盲签名方案进行讨论和分析,并成功地进行了伪造攻击,指出其设计上的不足之处,在分析方案不安全原因的基础上,提出改进方案。
A kind of proxy blind signature scheme is discussed and analyzed, and a forgery attack is successfully conducted. The design deficiencies are pointed out. Based on the analysis of the unsafe reasons, an improved scheme is proposed.