Github Signing Commits

Managing your computer keys

This steps worked on Ubuntu Linux

Listing existing keys


gpg --list-secret-keys
gpg --list-secret-keys --keyid-format LONG
              

Generating a key


gpg --full-generate-key
              

Making Git use the key to sign the commits


git config --global user.signingkey [THE KEY ID]
git commit -S -m 'Your commit message'
              

Make Git automatically sign all the commits


git config --global commit.gpgsign true
              

Adding your key to Github

Show your key public block using this command


gpg --armor --export [THE KEY ID]
              

You need to tell Github about your key, by adding it to the list of your account keys from this page

References