基于量子纠缠交换的双重弱盲签名方案  

A dual weak blind signature scheme based on quantum entanglement swapping

作　　者：娄小平 唐文胜 马华 LOU Xiaoping;TANG Wensheng;MA Hua(College of Information Science and Engineering,Hunan Normal University,Changsha 410081,China;Hunan Province Cooperative Innovation Center for Construction and Development ofDongting Lake Ecological Economic Zone,Changde 415000,China)

机构地区：[1]湖南师范大学信息科学与工程学院,湖南长沙410081 [2]洞庭湖生态经济区建设与发展湖南省协同创新中心,湖南常德415000

出　　处：《量子电子学报》2019年第2期174-181,共8页Chinese Journal of Quantum Electronics

基　　金：国家自然科学基金青年项目;61602172;湖南省自然科学基金青年项目;2017JJ3223;湖南省教育厅科学研究优秀青年项目;16B179~~

摘　　要：为了抵御弱盲签名的伪造攻击,基于量子纠缠交换原理提出了双重弱盲签名方案.此方案由发送者、签名者和验证者三方经过初始化、消息盲化、双重盲签名和验证完成.发送者将消息盲化后送给签名者,签名者用量子可控非门产生盲签名并执行Bell态测量,发送者用量子测量对原始消息再次签名,验证者对两次签名分别进行验证,并去除盲化恢复原始消息。如果参与者对签名验证的结果有争议,由可信的签名者对争议进行仲裁。分析表明当密钥满足偶数位恒为1时,该方法不仅能抵御外部攻击,而且能有效防止发送者篡改,满足了弱盲签名的不可伪造性、不可否认性、盲性和可追踪性等要求。所提方案在电子商务、电子货币等互联网交易中具有广泛的应用前景。In order to resist the forgery attack of weak blind signature,a double weak blind signature scheme is proposed based on the quantum entanglement swapping principle. The scheme is completed by initializing, message blindness, double blind signature and verification by the sender, signer and verifier.The sender sends message after the blind to the signer. The signer produces blind signature with quantum controlled Not gate and performs Bell state measurement. The sender performs signature on the original message again with quantum measurement. The verifier verifies the two signatures separately and removes the blind to restore the original message. If a participant disputes the results of signature verification, the dispute is arbitrated by a trusted signer. Analysis shows that when the even digit of the key is constant 1, the method can not only resist external attack, but also prevent the sender from tampering effectively.It satisfies the unforgeable, non-repudiation, blind and traceability requirements of weak blind signature.The proposed scheme has broad application prospect in electronic commerce, electronic currency and other internet transactions.

关 键 词：量子光学 弱盲签名 量子纠缠 BELL态 纠缠交换 

分 类 号：O431.2[机械工程—光学工程]