Physical-Layer Security for THz Communications via Orbital Angular Momentum Waves | |
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Author | |
Abstract |
This paper presents a physically-secure wireless communication system utilizing orbital angular momentum (OAM) waves at 0.31THz. A trustworthy key distribution mechanism for symmetric key cryptography is proposed by exploiting random hopping among the orthogonal OAM-wave modes and phases. Keccak-f[400] based pseudorandom number generator provides randomness to phase distribution of OAM-wave modes for additional security. We assess the security vulnerabilities of using OAM modulation in a THz communication system under various physical-layer threat models as well as analyze the effectiveness of these threat models for varying attacker complexity levels under different conditions. |
Year of Publication |
2022
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Conference Name |
2022 IEEE Workshop on Signal Processing Systems (SiPS)
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