Quantum Limits to Classically Spoofing an Electromagnetic Signal
- URL: http://arxiv.org/abs/2201.09999v1
- Date: Mon, 24 Jan 2022 23:11:33 GMT
- Title: Quantum Limits to Classically Spoofing an Electromagnetic Signal
- Authors: Jonathan N. Blakely and Shawn D. Pethel
- Abstract summary: Spoofing an electromagnetic signal involves measuring its properties and preparing a spoof signal that is a close enough copy to fool a receiver.
We show that a spoofer optimally employs classical information on the state of the transmitted signal.
We show that the quantum limitations on classical spoofing remain significant even in the large mean-photon-number regime.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Spoofing an electromagnetic signal involves measuring its properties and
preparing a spoof signal that is a close enough copy to fool a receiver. A
classic application of spoofing is in radar where an airborne target attempts
to avoid being tracked by a ground-based radar by emitting pulses indicating a
false range or velocity. In certain scenarios it has been shown that a sensor
can exploit quantum mechanics to detect spoofing at the single-photon level.
Here we analyze an idealized spoofing scenario where a transmitter-receiver
pair, seeking to detect spoofing, utilizes a signal chosen randomly from a set
of non-orthogonal, coherent states. We show that a spoofer optimally employing
classical information on the state of the transmitted signal (i.e. the best
measure-and-prepare strategy allowed by quantum mechanics) inevitably emits
imperfect spoofs that can be exploited by the receiver to reveal the presence
of the spoofer, or to discriminate between true reflections and spoofs.
Importantly, we show that the quantum limitations on classical spoofing remain
significant even in the large mean-photon-number regime.
Related papers
- Quantum illumination advantage in quantum Doppler radar [3.3424450937114316]
A Doppler radar is a device that employs the Doppler effect to estimate the radial velocity of a moving target at a distance.
For target detection, a quantum advantage exists even in the high-noise regime appropriate to describe microwave fields.
A 3dB advantage is possible in the regime of small number of signal photons and high thermal noise, even for low transmissivity.
arXiv Detail & Related papers (2024-11-21T18:49:57Z) - Revealing spoofing of quantum illumination using entanglement [0.0]
We analyze the scenario of a classical radar operator trying to detect the presence of a spoofer.
We find that in the absence of noise and loss, direct detection tends to produce spoofs with greater fidelity.
Our results suggest that entanglement is a novel resource available to quantum radar for detecting spoofing.
arXiv Detail & Related papers (2024-10-10T20:19:11Z) - Quantum enhancement of spoofing detection with squeezed states of light [0.18377902806196764]
We employ quantum state discrimination theory to establish the ultimate limit for spoofing detection in electromagnetic signals encoded with random quantum states.
Our analysis yields an analytical expression for the optimal bound, which we prove can be achieved using a pair of coherent states.
arXiv Detail & Related papers (2024-06-20T21:43:56Z) - True image construction in quantum-secured single-pixel imaging under spoofing attack [0.0]
We introduce a quantum-secured single-pixel imaging (QS-SPI) technique designed to withstand spoofing attacks.
Unlike previous quantum-secured protocols that impose a threshold error rate limiting their operation, our approach not only identifies spoofing attacks but also facilitates the reconstruction of a true image.
arXiv Detail & Related papers (2023-12-06T12:41:50Z) - Revealing spoofing of classical radar using quantum noise [0.0]
We introduce a model of electromagnetic spoofing that includes effects of practical importance that were neglected in prior theoretical studies.
We derive the optimal probability of detecting a spoofer allowed by quantum physics.
We show that a high degree of certainty in spoof detection can be reached by Bayesian inference from a sequence of received pulses.
arXiv Detail & Related papers (2023-07-05T21:11:36Z) - Certified Robustness of Quantum Classifiers against Adversarial Examples
through Quantum Noise [68.1992787416233]
We show that adding quantum random rotation noise can improve robustness in quantum classifiers against adversarial attacks.
We derive a certified robustness bound to enable quantum classifiers to defend against adversarial examples.
arXiv Detail & Related papers (2022-11-02T05:17:04Z) - Mid-infrared homodyne balanced detector for quantum light
characterization [52.77024349608834]
We present the characterization of a novel balanced homodyne detector operating in the mid-infrared.
We discuss the experimental results with a view to possible applications to quantum technologies, such as free-space quantum communication.
arXiv Detail & Related papers (2021-03-16T11:08:50Z) - No Need to Know Physics: Resilience of Process-based Model-free Anomaly
Detection for Industrial Control Systems [95.54151664013011]
We present a novel framework to generate adversarial spoofing signals that violate physical properties of the system.
We analyze four anomaly detectors published at top security conferences.
arXiv Detail & Related papers (2020-12-07T11:02:44Z) - Quantum metamaterial for nondestructive microwave photon counting [52.77024349608834]
We introduce a single-photon detector design operating in the microwave domain based on a weakly nonlinear metamaterial.
We show that the single-photon detection fidelity increases with the length of the metamaterial to approach one at experimentally realistic lengths.
In stark contrast to conventional photon detectors operating in the optical domain, the photon is not destroyed by the detection and the photon wavepacket is minimally disturbed.
arXiv Detail & Related papers (2020-05-13T18:00:03Z) - Quantum noise protects quantum classifiers against adversaries [120.08771960032033]
Noise in quantum information processing is often viewed as a disruptive and difficult-to-avoid feature, especially in near-term quantum technologies.
We show that by taking advantage of depolarisation noise in quantum circuits for classification, a robustness bound against adversaries can be derived.
This is the first quantum protocol that can be used against the most general adversaries.
arXiv Detail & Related papers (2020-03-20T17:56:14Z) - Quantum-secure message authentication via blind-unforgeability [74.7729810207187]
We propose a natural definition of unforgeability against quantum adversaries called blind unforgeability.
This notion defines a function to be predictable if there exists an adversary who can use "partially blinded" access to predict values.
We show the suitability of blind unforgeability for supporting canonical constructions and reductions.
arXiv Detail & Related papers (2018-03-10T05:31:38Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.