Arbitrated quantum signature protocol with boson sampling-based encryption and quantum walk-based teleportation

参赛者：

冯艳艳-中南大学

作品简介：

基于被证明具有量子优势的玻色采样和物理及实验均可实现的量子游走理论，基于玻色采样的随机酉加密密文信息副本制备签名，其规避了量子一次一密的安全缺陷；基于量子游走的隐形传输转移信息副本，其避免了纠缠态的提前制备。

There are two crucial procedures in an entanglement-based arbitrated quantum signature protocol, i.e., encryption and teleportation. It has been proved that boson sampling has quantum advantages and quantum walks are physically and experimentally implementable. Boson sampling-based random unitary encryption is used to encrypt the message copy to produce the signature, which can circumvent the drawbacks of quantum one time pad; Quantum walk-based teleportation is applied to teleport the message copy from the sender to the verifier, which can avoid the preparation of the essential entangled states beforehand.