机构地区: 华南师范大学物理与电信工程学院物理系
出 处: 《量子电子学报》 2003年第4期385-390,共6页
摘 要: 基于量子物理原理的量子密码术已被证明是保密通信中密钥安全分配的有效手段。本文介绍了量子密码的基本原理,探讨了实现量子密码的几种方案,并研究了各自的密钥分配机制。还讨论了量子密码通信的历史发展和指出现存在的问题以及未来的发展前景。 Quantum cryptography based on fundmental physical principles has been proved to be an effective technique for secure key distribution.The fundamental theory of quantum cryptography together with their main schemes and protocols is discussed in this paper. Recent improvements of quantum cryptographic communication are analyzed, and the existing problems and development prospect in future are also pointed out.