有噪声的BB84量子密码协议的改进  

Modification for BB84 Quantum Cryptographic Protocol with Noise

作　　者：任成波[1] 徐秋亮[1] 任国珍[1] 

机构地区：[1]山东大学(东校区)计算机科学与技术学院,济南250100

出　　处：《计算机工程与应用》2003年第13期176-178,共3页Computer Engineering and Applications

基　　金：山东省自然科学基金项目(编号:Z99G01)

摘　　要：把量子力学应用到密码学中产生了一个新的学科———量子密码学。量子密码提供的密钥交换方式,能够自动检查是否有人在窃听,这是公钥体制所不具备的。该文对有噪声的BB84协议作了一些改进,以增强安全性、提高效率。这种改进方案对其它带有噪声的量子密码协议同样适用。The application of quantum mechanics to cryptography has made a new subject—— — quantum cryptography produce.Quantum cryptographic system is different from public key system in exchanging secret key,which can automatically detect eavesdropping while public key system can't accomplish this.This paper improves the BB84quantum cryptographic protocol with noise in security and in efficiency.The improvement we present can be applied to other quantum cryptographic protocol with noise.

关 键 词：量子密码协议 偏振态 密钥交换 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]