DocumentCode :
631513
Title :
Quantum key distribution over optical access networks
Author :
Aleksic, Slavica ; Winkler, Dietmar ; Franzl, Gerald ; Poppe, Andreas ; Schrenk, Bernhard ; Hipp, F.
Author_Institution :
Inst. of Telecommun., Vienna Univ. of Technol., Vienna, Austria
fYear :
2013
fDate :
10-12 July 2013
Firstpage :
11
Lastpage :
18
Abstract :
It is well known that optical access networks are able to provide high data rates over long distances and to a reasonable number of users. Security and privacy are always a challenge for public accessible network infrastructures. Especially in time-division multiplexing passive optical networks (TDM-PONs), in which the downstream signal is broadcasted to all users connected via the same wavelength channel in a shared fiber link, privacy can be a critical concern. Although encryption at the application layer can provide a high level of security, this can be achieved only if the encryption key distribution is perfectly save. On the other hand, encryption on the physical layer such as quantum cryptography or, more precisely, quantum key distribution (QKD) is a very promising approach to achieve secure communication. However, there remain several issues that have to be solved before the quantum cryptography reaches the maturity level needed for a cost effective implementation in practical networks. In this paper, we address quantum key distribution (QKD) over passive optical access networks, which is an enabling technology required to cost efficiently deploy practical quantum encrypted data communication in the access area. We study different methods to integrate QKD systems in conventional optical access networks and quantitatively evaluate their suitability for a potential implementation.
Keywords :
data privacy; passive optical networks; quantum cryptography; telecommunication security; time division multiple access; time division multiplexing; wavelength division multiplexing; QKD; TDM-PON; application layer encryption; data communication; downstream signal broadcasting; encryption key distribution; passive optical access network; public accessible network infrastructure; quantum cryptography; quantum key distribution; secure communication; shared fiber link; time-division multiplexing passive optical network; wavelength channel; Optical attenuators; Optical fibers; Passive optical networks; Photonics; Wavelength division multiplexing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Network and Optical Communications (NOC), 2013 18th European Conference on and Optical Cabling and Infrastructure (OC&i), 2013 8th Conference on
Conference_Location :
Graz
Print_ISBN :
978-1-4673-5821-7
Type :
conf
DOI :
10.1109/NOC-OCI.2013.6582861
Filename :
6582861
Link To Document :
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