一种基于受控量子隐形传态的聚合签名方案

An Aggregate Signature Scheme Based on Controlled Quantum Teleportation

针对多数经典聚合签名方案无法抵抗量子计算机的攻击这一问题,本文结合量子态的物理特性设计了一种聚合签名方案.该方案将EPR对作为量子信道,使用一种特殊加法将多个签名者的签名聚合为一个签名.安全性分析表明,方案具有不可否认性和不可伪造性,同时能够抵抗纠缠测量攻击.效率分析表明,方案在通信成本方面低于其它量子聚合签名方案.对粒子执行测量时只用到了单粒子测量和Bell测量,因此该方案在当前技术条件下有着较好的应用前景.

Most classical aggregate signature schemes cannot resist the attack of quantum computer.To solve this problem,this paper designs an aggregate signature scheme based on the physical properties of quantum states.The scheme uses EPR pairs as quantum channels and uses a special addition to aggregate the signatures of multiple signers into one signature.The security analysis shows that the proposed scheme provides non-repudiation service and is unforgeable,and is secure against the entanglement measurement attack.The analysis of efficiency shows that the proposed scheme is lower than the related quantum aggregate signature schemes in communication cost.Only single particle measurement and Bell measurement are used in the measurement of particles,so the scheme has a good application prospect under the current technical conditions.