Tradeoff between Reach and Security in Nyquist WDM Transmission of PSK Y-00 Quantum Stream Cipher

Y-00 quantum stream cipher is a signal-level encryption technique that prevents signal interception in optical fiber communications. Security of the Y-00 cipher depends on the signal power, and thus the cipher system has a tradeoff between the security and signal quality. This paper reports theoreti...

Full description

Saved in:
Bibliographic Details
Published inIEEE photonics technology letters Vol. 35; no. 21; p. 1
Main Authors Tanizawa, Ken, Futami, Fumio
Format Journal Article
LanguageEnglish
Published New York IEEE 01.11.2023
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Algorithms
Ciphers
communication system nonlinearities
communication system security
Computer networks
Cybersecurity
Encryption
Optical communication
Optical fiber amplifiers
Optical fiber communication
Optical fibers
Phase shift keying
Random noise
Signal quality
Signal to noise ratio
Tradeoffs
Wavelength division multiplexing
Online AccessGet full text

Cover

More Information
Summary:Y-00 quantum stream cipher is a signal-level encryption technique that prevents signal interception in optical fiber communications. Security of the Y-00 cipher depends on the signal power, and thus the cipher system has a tradeoff between the security and signal quality. This paper reports theoretical analysis of Nyquist wavelength-division multiplexed transmission of phase-shift keying Y-00 cipher over a nonlinear fiber channel. A tradeoff formula between reach and signal security is derived utilizing the Gaussian noise model. Numerical study shows that the PSK cipher achieves high-capacity ultra-long-haul transmission with a countermeasure against interception.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2023.3306357