Programmable Optical Data Transmission Through Multimode Fibres Enabling
Confidentiality by Physical Layer Security
- URL: http://arxiv.org/abs/2203.02064v1
- Date: Tue, 1 Mar 2022 10:28:27 GMT
- Title: Programmable Optical Data Transmission Through Multimode Fibres Enabling
Confidentiality by Physical Layer Security
- Authors: Stefan Rothe, Karl-Ludwig Besser, David Krause, Robert Kuschmierz,
Nektarios Koukourakis, Eduard Jorswieck, J\"urgen W. Czarske
- Abstract summary: Complex light transportation phenomena of multimode fibres can be exploited for information-theoretically secure data transmission.
Physical layer security is not crackable by quantum computers as it does not rely on mathematical complexity.
We harness effects that have long been considered limiting and have restricted the widespread use of multimode fibres.
- Score: 6.760806336950416
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Complex light transportation phenomena of multimode fibres can be exploited
for information-theoretically secure data transmission. The approach called
physical layer security is not crackable by quantum computers as it does not
rely on mathematical complexity, but on targeted leveraging of properties that
are obscured in the physical channel. For its implementation only knowledge of
the channel conditions, i.e. the transmission matrix, is required. This allows
wiretap code generation, which determine the appropriate mode combination
providing secure data transmission. Once the proper combination is launched at
the transmitter-side, the message is delivered to the legitimate receiver and,
simultaneously, the full decipherment for an eavesdropper is destroyed. This is
demonstrated experimentally at presence of an almighty eavesdropper and the
fundamental theory is introduced. We harness effects that have long been
considered limiting and have restricted the widespread use of multimode fibres
opening new perspectives on information-theoretic security in spatial
multiplexing communication systems.
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