Secrets in Preamble: Practical and Robust PHY Information Hiding for Wi-Fi

Rui Pan, Guanxiong Shen, Linning Peng i 2 więcej

[Kryptografia i bezpieczeństwo] Autorzy: Rui Pan, Guanxiong Shen, Linning Peng i 2 więcej

Physical layer (PHY) information hiding refers to the concealment of secrets within PHY waveforms without compromising the integrity of the primary communication link, thereby enabling critical applications such as covert communication, PHY steganography, and watermarking. The widespread deployment of Wi-Fi has motivated substantial research interest in hiding secrets within Wi-Fi waveforms. However, existing Wi-Fi information hiding approaches suffer from two limitations: restricted steganographic capacity and insufficient robustness against environmental variations, both of which severely constrain practical deployment. This work proposes to embed secrets within the Wi-Fi legacy short training field (L-STF). The designed method preserves the autocorrelation properties of Wi-Fi L-STF, ensuring that packet detection and coarse frequency offset compensation functionalities remain uncompr…

Kategoria arxiv

cs.CR

Kategoria

Kryptografia i bezpieczeństwo

Pdf

https://arxiv.org/pdf/2610.13367v1

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