mchus/keys

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Michael Chus efba949afd feat(keygen): export SSH public key alongside signing key

Same Ed25519 key now serves dual purpose:
- Release binary signing (developers/<name>.pub raw base64)
- SSH access to debug LiveCD (~/.keys/<name>.key.pub OpenSSH format)

build-debug.sh auto-collects ~/.keys/*.key.pub into authorized_keys.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

2026-03-05 10:42:42 +03:00

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Release Signing Keys

Centralized public key registry for all mchus.pro projects.

Ed25519 asymmetric signatures. Public keys are safe to commit here. Private keys stay on each developer's machine — never committed, never shared.

How verification works

Release binaries are signed by one developer's private key. The binary trusts any key in developers/. Signature valid if at least one trusted key matches.

Setup (new developer, one-time)

sh scripts/keygen.sh <your-name>

This creates:

~/.keys/<your-name>.key — private key PEM, keep secret
~/.keys/<your-name>.key.pub — SSH public key (OpenSSH format)
developers/<your-name>.pub — raw base64 public key, commit to this repo

One key, two uses:

Release signing: developers/<your-name>.pub embedded in binaries via ldflags
SSH access to debug LiveCD: ~/.keys/<your-name>.key.pub auto-loaded by build-debug.sh

Then commit and push the .pub file. Next project release will include your key.

Signing a release binary

sh scripts/sign-release.sh <your-name> path/to/binary

Produces path/to/binary.sig — upload both to the Gitea release as assets.

Verifying a signature locally

sh scripts/verify-signature.sh path/to/binary

Checks path/to/binary.sig against all keys in developers/.

Adding / removing a developer

Add: run keygen, commit the .pub file, rebuild affected project releases.

Remove: delete their .pub file, commit, rebuild releases. Previously signed binaries with their key remain valid (already distributed), but they cannot sign new releases.

Requirements

openssl 3.x
python3 (for verify-signature.sh only)

Projects using this repo

git.mchus.pro/mchus/bee — hardware audit LiveCD

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