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提出了一种基于量子纠缠交换的仲裁签名协议.以Bell态为基础,首先将待签消息利用幺正算符序列进行编码,通过算符序列对Bell态进行调制,再通过对量子信息加密产生签名.验证者将签名信息与仲裁者通过纠缠交换所产生的关联态相结合,通过Bell测量来对签名的真实性进行验证.算法利用量子加密保障了真实签名的不可伪造性,同时通过仲裁的参与结合量子密钥有效解决了双方的抵赖问题,方案还能够有效实现对通信双方隐私信息的保护.
An arbitration signature protocol based on quantum entanglement swapping is proposed.Based on the Bell state, the message to be signed is first encoded by a unitary operator sequence, the Bell state is modulated by the operator sequence, and then the quantum information is generated by encryption Signature.The verifier verifies the authenticity of the signature through the Bell measure by combining the signature information with the association state of the arbiter through the entanglement exchange.The algorithm uses the quantum encryption to ensure the unforgeability of the real signature and at the same time, Participating in quantum key effectively solves the problem of the repudiation of both parties, and the scheme can effectively protect the privacy information of both communication parties.