对张劼等人提出的一类可验证的门限签名方案进行了安全性分析，发现它存在安全漏洞，容易受到合谋攻击和伪造攻击，并且不具备不可否认性。
Through the cryptanalysis of a verifiable threshold signature scheme presented by Zhang and Wen, concluded it not only exist collusion attack and forgery attack, but have no undeniability.
对张劼等人提出的一类可验证的门限签名方案进行了安全性分析，发现它存在安全漏洞，容易受到合谋攻击和伪造攻击，并且不具备不可否认性。
Through the cryptanalysis of a verifiable threshold signature scheme presented by Zhang and Wen, concluded it not only exist collusion attack and forgery attack, but have no undeniability.
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