Simple quantum password checking

被引:1
|
作者
Carlos Garcia-Escartin, Juan [1 ]
Chamorro-Posada, Pedro [1 ]
机构
[1] Univ Valladolid, ETSI Telecomunicac, Dept Teor Senal & Comunicac, E-47011 Valladolid, Spain
来源
PHYSICAL REVIEW A | 2015年 / 91卷 / 06期
关键词
AUTHENTICATION;
D O I
10.1103/PhysRevA.91.062310
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We present a quantum password checking protocol where secrecy is protected by the laws of quantum mechanics. The passwords are encoded in quantum systems that can be compared but have a dimension too small to allow reading the encoded bits. We study the protocol under different replay attacks and show it is robust even for poorly chosen passwords. We also describe a possible implementation with conventional optical elements.
引用
收藏
页数:6
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