Case study

Elan 04f3:0903: reconstructing a fingerprint sensor's Linux interface

Elan 04f3:0903 reconstructs a laptop fingerprint sensor's USB interface after analysis of its Windows driver DLLs and provides a Linux capture and authentication pipeline. The source identifies command, touch and raw-frame endpoints, then describes OpenCV preprocessing, ORB features and RANSAC matching for a PAM integration.

Targets: Protocol
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-06
Evidence class: C2 code & docs, no demo or download

Stars: 1
Last commit: 2026-11-08
Language: Python
License (GitHub): MIT

GitHub data as of 2026-11-10

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Evidence

Observed: Code, documentation and a demo observed; no download method found.
Checked: 2026-11-08

How evidence classes are assigned

Requirements & limits

Prerequisites: An ElanTech 04f3:0903 sensor on Linux, with the Python, OpenCV and PAM dependencies installed by the project.
Testing evidence: The author reports a greater than 99.5% match verification rate and under 300 ms authentication latency; the README provides no evaluation sample size.
License: MIT license.

Cite

BibTeX

@misc{elan-0903-fingerprint-linux-case,
  title = {{Elan 04f3:0903: reconstructing a fingerprint sensor's Linux interface}},
  howpublished = {\url{https://github.com/sarvasva-dev/elan-0903-fingerprint-linux}},
  url = {https://github.com/sarvasva-dev/elan-0903-fingerprint-linux},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/elan-0903-fingerprint-linux-case/}}
}

Plain text

Elan 04f3:0903: reconstructing a fingerprint sensor's Linux interface. https://github.com/sarvasva-dev/elan-0903-fingerprint-linux (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/elan-0903-fingerprint-linux-case/

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About this entry

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Primary sources

README.md GitHub · sarvasva-dev/elan-0903-fingerprint-linux · Revision 74aeaba