Integrate GPG signing for Debian repository to prevent package injection attacks #41
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Co-authored-by: bqstony <10487253+bqstony@users.noreply.github.com>
Co-authored-by: bqstony <10487253+bqstony@users.noreply.github.com>
Co-authored-by: bqstony <10487253+bqstony@users.noreply.github.com>
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[WIP] Address feedback on GPG key integration in Debian support PR
Integrate GPG signing for Debian repository to prevent package injection attacks
Jan 5, 2026
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The Debian repository was published with
-skip-signingand instructed clients to useTrusted: yes, removing cryptographic verification. This allowed arbitrary package injection via compromised HTTPS or GitHub Pages.Changes
Pipeline (
azure-pipelines-release.yml)aptly publish -gpg-keyinstead of-skip-signingrepo/public/log4tc-archive-keyring.gpgandrepo/public/dists/stable/Client Configuration (
CONTRIBUTING.md,docs/reference/installation.md)Trusted: yeswithSigned-By: /etc/apt/trusted.gpg.d/log4tc-archive-keyring.gpgwget -qO- https://mbc-engineering.github.io/log4TC/deb/log4tc-archive-keyring.gpg | sudo tee /etc/apt/trusted.gpg.d/log4tc-archive-keyring.gpgBefore:
Types: deb URIs: https://mbc-engineering.github.io/log4TC/deb Suites: stable Components: main Trusted: yes # ❌ Bypasses signature verificationAfter:
Types: deb URIs: https://mbc-engineering.github.io/log4TC/deb Suites: stable Components: main Signed-By: /etc/apt/trusted.gpg.d/log4tc-archive-keyring.gpg # ✅ Verifies signaturesAddresses review feedback from PR #40.
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