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Keyless Physical-Layer Cryptography

delete2026-01-01
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PRE
AI
S
Senlin Liu
D
Dongshu Cai
H
Han, Dongchi
H
Hongbo Liu
X
Xianhui Lu *
DOI:10.1007/978-3-032-08124-7_2delete
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Abstract

Abstract

En 中文
We propose a new physical-layer encryption scheme through pilot designs and MIMO techniques. Under formal reduction proofs and informal reliability analysis, we demonstrate that the decoding complexity for the legitimate user grows linearly with the number of antennas, whereas for the eavesdropper, decoding is computationally infeasible. In comparison to traditional wireless physical-layer security schemes, the proposed scheme remains secure even if the eavesdropper has unlimited computing power, infinite antennas, or knows the legitimate channel. Our scheme leverages the physical-layer wireless channels properties to achieve sophisticated network-layer encryption without a pre-shared key. Additionally, our algorithm involving lattices provides a new approach for secure group communication and can be used to enhance the security of the post-quantum cryptosystem in 6G. Experimental results show that the proposed scheme achieves a bit error rate of approximately 0.5 for the eavesdropper and nearly 0 for the legitimate receiver.
Keywords:
Physical layer cryptography
Lattice problems
Channel estimation
MIMO
Wirelesssecurity

Journal

I
INFORMATION SECURITY, ISC 2025
IF:
0
Papers:
26
Citations:
0

Organization

C
chinese academy of sciences
Scholars:
56.7W
Papers: 45.0W
Citations: 704
Cited Papers

Cited Papers

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EXPLOITING THE PHYSICAL LAYER FOR ENHANCED SECURITY
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errMathur, Suhas; Reznik, Alex; Ye, Chunxuan; Mukherjee, Rajat; Rahman, Akbar; Shah, Yogendra; Trappe, Wade; Mandayam, Narayan
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What Physical Layer Security Can Do for 6G Security
err2023-01-01
err59
errOAAI
errMitev, Miroslav; Chorti, Arsenia; Poor, H. Vincent; Fettweis, Gerhard P.
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Transmit Beamforming for Layered Physical Layer Security
err2019-10-01
err43
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errZhang, Wei; Chen, Jian; Kuo, Yonghong; Zhou, Yuchen
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The discrete fractional Fourier transform
err2000-05-01
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errOAAI
errC. Candan; M.A. Kutay; H.M. Ozaktas
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