One-time pads cannot be used to improve the efficiency of quantum communication

被引：13
|
作者：
Gao, Fei [1 ]
Qin, Su-Juan
Wen, Qiao-Yan
Zhu, Fu-Chen
机构：
[1] Beijing Univ Posts & Telecommun, Sch Sci, Beijing 100876, Peoples R China
[2] Xidian Univ, State Key Lab Integrated Serv Network, Xian 710071, Peoples R China
[3] Natl Lab Modern Commun, Chengdu 610041, Peoples R China
来源：
PHYSICS LETTERS A | 2007年 / 365卷 / 5-6期
基金：
高等学校博士学科点专项科研基金; 中国国家自然科学基金;
关键词：
quantum key distribution; quantum secure direct communication; quantum cryptography; one-time pad;
D O I：
10.1016/j.physleta.2007.01.047
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Two misuses of one-time pad in improving the efficiency of quantum communication are pointed out. One happens when some message bits are used to encrypt others, the other exists because the key bits are not truly random. Both of them result in the decrease of security. Therefore, one-time pad should be used carefully in designing quantum communication protocols. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：386 / 388
页数：3
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