1. When to use it
Useful when you want to sign releases, files, or emails while keeping a coherent cryptographic identity.
gpg | key generation | fingerprint | export | secret key
2. Base setup
gpg --full-generate-key
gpg --list-secret-keys --keyid-format LONG
gpg --armor --export you@example.com > publickey.ascAdjust host names, IPs, interfaces, paths, and versions to the real system before making the change persistent.
3. Quick verification
gpg --list-keys
gpg --fingerprint you@example.com
ls -l publickey.ascConfirm that the output matches the expected state before considering the intervention complete.
4. Operational notes
Keep the private key and revocation certificate offline: they are the real operational insurance of a GPG setup.
Quick checklist
[ ] Steps completed\n[ ] Config updated\n[ ] Tests executed\n[ ] Rollback ready\n[ ] Logs checked