mmFHE: mmWave Sensing with End-to-End Fully Homomorphic Encryption — Paper

Abstract

-cross Abstract: We present mmFHE, the first system that executes the entire cloud-side mmWave sensing pipeline including the DSP and ML inference under fully homomorphic encryption (FHE). mmFHE encrypts range profiles on an edge device after lightweight plaintext preprocessing and executes the entire mmWave signal-processing and ML inference pipeline homomorphically on a semi-honest cloud that operates exclusively on ciphertexts. At the core of mmFHE is a library of seven composable, data-oblivious FHE kernels that replace standard DSP routines with fixed arithmetic circuits for different application-specific pipelines. We demonstrate this approach on two representative tasks: vital-sign monitoring and gesture recognition. We formally prove two cryptographic guarantees for any pipeline assembled from this library: input privacy and data obliviousness. These guarantees effectively neutralize various supervised and unsupervised privacy attacks on raw data, including re-identification and data-dependent privacy leakage. Evaluation on three public radar datasets shows that encryption introduces negligible error versus the plaintext pipeline, with 84.5% gesture accuracy (vs. 84.7%). End-to-end cloud GPU latency is 1.21 s per 10 s vital-sign window and 5.76 s per 3 s gesture window. These results establish the initial feasibility of end-to-end mmWave sensing under FHE on commodity hardware.

Authors 4

Tanvir Ahmed, Yixuan Gao, Adnan Armouti, Rajalakshmi Nandakumar

Specification

Official page: arxiv.org/abs/2603.22437
Source:arXiv (Atom API + RSS)T1observed 2 h agohigh
Arxiv announce type: replace
Source:arXiv (Atom API + RSS)T1observed 2 h agohigh
arXiv id: 2603.22437
Source:arXiv (Atom API + RSS)T1observed 2 h agohigh
Categories: cs.CR, cs.LG, eess.SP
Source:arXiv (Atom API + RSS)T1observed 2 h agohigh
DOI: 10.1145/3795866.3844486
Source:arXiv (Atom API + RSS)T1observed 2 h agohigh
PDF: arxiv.org/pdf/2603.22437
Source:arXiv (Atom API + RSS)T1observed 2 h agohigh
Primary category: cs.CR
Source:arXiv (Atom API + RSS)T1observed 2 h agohigh
Published: 11 Sept 2026
Source:arXiv (Atom API + RSS)T1observed 2 h agohigh

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10

Source tiers

T110

Freshest observation

2 h ago

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None

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Authors: Tanvir Ahmed, Yixuan Gao, Adnan Armouti

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Claim history for DOI
Value	Valid from → to	Status	Source	Confidence	Extractor
10.1145/3795866.3844486	11 Sept 2026 21:02 UTC → current	current	arXiv (Atom API + RSS)T1	high	deterministic

Claims are temporal and append-only: a new observation closes the previous claim (valid_to) instead of overwriting it. Conflicting claims from different sources are kept side by side and flagged — never averaged. Methodology →

11 Sept 2026
New paperPapermmFHE: mmWave Sensing with End-to-End Fully Homomorphic Encryption
New paper: mmFHE: mmWave Sensing with End-to-End Fully Homomorphic Encryption
arxiv
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Source documents
Source	Document	Type	Tier	Last observed	Snapshots
arXiv (Atom API + RSS)	rss.arxiv.org/rss/cs.LG	feed	T1· Official	41 min ago	1

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