高效的量子有序多重签名协议

基于量子一次一密和量子密钥分配，提出了一种针对经典消息的量子有序多重签名协议。不同于已有的量子有序多重签名协议，协议不需要使用多粒子纠缠态，只需要对单粒子实施幺正操作就能完成签名。并且协议具有很高的灵活性，对签名者的加入和删除能够很容易实现。协议的安全性依赖于无条件安全的量子密钥分配，现有的各种攻击方式被证明对本协议也是无效的。此外，与其他主流的量子有序多重签名协议相比较，协议的签名过程和验证过程的效率都有较大的提高。

Efficient quantum sequential multi-signature protocol

Based on the technologies of Quantum One-time Pad and Quantum Key Distribution, an efficient quantum sequential multi-signature protocol of classic message was proposed. Different from known quantum sequential multi-signature protocols, the protocol takes the single photons as quantum resources, instead of multi-particle entangled states, and further only needs to perform single-particle unitary operations. Especially, it is very easy and flexible for the proposed protocol to add and delete the signer. The security of the proposed protocol mainly depends on the unconditional security of Quantum Key Distribution, and it can resist various related attacks. In addition, compared with well-known quantum sequential multi-signature protocols, there are higher efficiencies of the signature and the verification in our protocol.