基于相位涨落的量子随机数发生器理论模型  

Theoretical model of quantum random number generator based on phase fluctuation

作　　者：陶红 谭晓青[1] 李晓纯 TAO Hong;TAN Xiaoqing;LI Xiaochun(College of Information Science and Technology,Jinan University,Guangzhou 510632,Guangdong Province,P.R.China)

机构地区：[1]暨南大学信息科学技术学院

出　　处：《深圳大学学报（理工版）》2019年第5期519-524,共6页Journal of Shenzhen University(Science and Engineering)

基　　金：国家自然科学基金资助项目(61672014);国家密码发展基金资助项目(MMJJ20180109)~~

摘　　要：密码算法的安全性基于密钥的安全性,密钥本质上是随机数.伪随机数基于算法的复杂度,理论上无法保证其真随机性,量子力学的不确定性为真随机数发生器提供了一个完美的熵源.基于YANG等提出的利用量子相位涨落获取实时量子随机数方案,设计了一个加入两个延时线圈的量子随机数光干涉理论模型,并对该理论模型进行随机性分析,所得理论模型具有随机正态分布特征.The security of cryptography algorithms is based on the security of the key and the secret key is essentially random number.Pseudo-random numbers based on the complexity of the algorithm can not guarantee the true randomness theoretically.The uncertainty of quantum mechanics provides a perfect source of entropy for the true random number generator.In this paper,we analyze the real-time quantum random number scheme based on quantum phase fluctuation given by YANG et al.On the basis of this scheme,a theoretical model of quantum random number optical interference with two delay coils is designed,and the randomness of the theoretical model is analyzed.The theoretical model obtained has the characteristics of random normal distribution.

关 键 词：量子力学 量子随机数发生器 相位涨落 延时线圈 随机正态分布 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]