基于Bell态纠缠交换的量子盲签名方案

QUANTUM BLIND SIGNATURE SCHEME BASED ON BELL STATE ENTANGLEMENT SWAPPING

基于量子纠缠交换理论,提出一种基于Bell态纠缠交换的量子盲签名方案。消息拥有者Alice将待签名消息发送给盲签名者Charlie,Charlie根据双方共享的量子密钥对消息进行盲化签名,加密后发送给消息验证者Bob。Bob收到盲化签名后,根据他与Charlie共享的量子密钥对签名进行验证。利用量子纠缠特性,实现了消息对签名者Charlie的盲化性。基于量子密钥分发和一次一密技术,保证了签名过程的绝对安全性。

Based on the theory of quantum entanglement swapping,this paper proposes a quantum blind signature scheme based on Bell state entanglement swapping.Message owner Alice sent the message to be signed to the blind signer Charlie,who blindly signed the message according to the quantum key shared by both parties,and he sent it to the message verifier Bob after encryption.After receiving the blind signature,Bob verified the signature according to the quantum key that he shared with Charlie.By using quantum entanglement,blindness of the message to signer Charlie was realized.Based on quantum key distribution and one-time one-key technology,the absolute security of the signature process is guaranteed.