Title :
Source monitor in quantum key distribution
Author :
Peng, Xiang ; Guo, Hong
Author_Institution :
Sch. of Electron. Eng. & Comput. Sci., Peking Univ., Beijing, China
Abstract :
The core value of a quantum-key-distribution (QKD) system is the unconditional security. In the standard security analysis, the characteristics of QKD source are assumed to be known and fixed. In a real QKD experiment, this assumption may be deviated. Especially, in commercial Plug&Play QKD system, the source is untrusted. Source monitor can close this security loophole. This paper analyzes passive source-monitor scheme, and shows that this scheme can be well implemented in practice.
Keywords :
quantum cryptography; security of data; passive source-monitor; plug and play QKD system; quantum key distribution; security loophole; source monitor; standard security analysis; unconditional security; Attenuators; Detectors; Gold; Monitoring; Noise measurement; Photonics; Security;
Conference_Titel :
General Assembly and Scientific Symposium, 2011 XXXth URSI
Conference_Location :
Istanbul
Print_ISBN :
978-1-4244-5117-3
DOI :
10.1109/URSIGASS.2011.6050668
