机构地区: 北京交通大学
出 处: 《北京交通大学学报》 2010年第5期127-130,134,共5页
摘 要: 提出了一种量子代理签名方案.基于可控量子隐形传态,采用3粒子纠缠态作为量子信道,不同于经典的基于计算复杂性的代理签名方案,本方案利用量子隐形传态的物理特性来实现签名及验证,具有无条件安全性. In this paper, a new quantum proxy signature scheme based on controlled teleportation is proposed, by choosing three-particle entangle state as the quantum channel. Comparing the traditional proxy signature schemes based on computing complexity, our scheme uses the physical characteristics of quantum teleportation to implement signature and verification, so it has unconditional security.