论文部分内容阅读
提出一个基于可控隐形传态的量子代理盲签名方案.使用Bell态与三粒子Greenberger-Horne-Zeilinger(GHZ)态作为量子信道,来联系签名的三方:原始签名人Charlie,代理签名人Alice和签名验证人Bob.此方案采用异或运算盲化消息并将其按2-bit为一组编码为量子信息.Alice对自己手中粒子进行测量,根据测量结果产生一个对量子信息的代理盲签名.Charlie通过对持有的粒子进行测量操作帮助Alice完成签名.之后,Bob根据Charlie与Alice的测量结果,在余下的粒子上作合适的幺正变换,重构出消息并验证签名.在方案中,通过采用量子信道窃听检测,量子密钥分发协议,量子加密算法与纠缠粒子的相干性来保证方案的安全性,即本方案满足盲性,代理签名的可注销性,不可伪造性和不可否认性.
This paper proposes a quantum proxy blind signature scheme based on stealthy teleportation states.The Bell states and the three-particle Greenberger-Horne-Zeilinger (GHZ) states are used as quantum channels to contact the signed three parties: the original signer Charlie, the proxy signer Alice and Bob, a signature verifier, uses the exclusive OR operation to blindly encode messages and encode them into 2-bit coded quantum information.Alice measures the particles in his hand and generates a proxy blind signature of the quantum information based on the measurement results. Charlie helps Alice complete the signature by doing measurements on the held particles, then Bob makes the appropriate unitary transformations on the remaining particles based on the measurements made by Charlie and Alice, reconstructing the message and verifying the signature.In the scenario, Through the use of quantum channel eavesdropping detection, quantum key distribution protocol, quantum encryption algorithm and the coherence of the entangled particles to ensure the security of the program, that is, the program to meet the blinding, proxy signature of the cancellation, unforgeability and non-repudiation .