[2] NTT Corp, NTT Commun Sci Labs, Kyoto 6190237, Japan
[3] Telecognix Corp, Sakyo Ku, Kyoto 6068314, Japan
来源:
IEICE NONLINEAR THEORY AND ITS APPLICATIONS
|
2015年
/
6卷
/
02期
关键词:
physical random bit generator;
chaos;
semiconductor laser;
unpredictability;
noisy dynamics;
D O I:
10.1587/nolta.6.133
中图分类号:
O1 [数学];
学科分类号:
0701 ;
070101 ;
摘要:
Physical random bit generators (RBGs) that generate unpredictable bits at high speed are now of increasing importance in information science and technology. since they are expected to generate unpredictable random bits with high speed. From the viewpoint of applications for security, it is a crucial issue to be able to give a guarantee of the unpredictability of random bits. In this paper, we review research on physical RBGs, particularly focusing our attention on the studies of the unpredictability of random bits generated by laser systems, which are promising entropy sources for physical RBGs. Finally, we report recent research results on noise-robustness, which could be crucial for reliability of physical RBG.