针对多人参与签名的情况,提出了一种量子签名方案.发送方利用Hash函数得到任意位经典消息的摘要信息,并将该摘要信息转化为量子比特.签名各方用自己的私钥与经典消息的摘要信息进行异或运算,运用所得序列依次对该量子比特做幺正变换,将变换后的量子比特作为签名信息.签名的验证工作由一个可信赖的仲裁执行,验证过程引入了奇偶校验原理.分析表明,该方案所产生的签名信息不会因为签名人数的增多而变长,具有较高的通信效率,并且验证过程简单.
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