If you're using a GPG key that matches your committer identity and your verified email address associated with your account on your GitHub Enterprise Server instance, then you can begin signing commits and signing tags.
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Abra TerminalTerminalGit Bash.
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Use o comando
gpg --list-secret-keys --keyid-format=longpara listar a forma longa das chaves GPG para as quais você tem uma chave pública e privada. Uma chave privada é necessária para assinar commits ou tags.Shell $ gpg --list-secret-keys --keyid-format=longObservação: algumas instalações de GPG no Linux podem exigir o uso de
gpg2 --list-keys --keyid-format LONGpara ver uma lista das chaves existentes. Nesse caso, você também precisará configurar o Git para usargpg2executandogit config --global gpg.program gpg2. - 
Da lista de chaves GPG, copie a forma longa do ID da chave GPG que você gostaria de usar. Neste exemplo, a ID da chave GPG é
3AA5C34371567BD2:Shell $ gpg --list-secret-keys --keyid-format=long /Users/hubot/.gnupg/secring.gpg ------------------------------------ sec 4096R/3AA5C34371567BD2 2016-03-10 [expires: 2017-03-10] uid Hubot <hubot@example.com> ssb 4096R/42B317FD4BA89E7A 2016-03-10 - 
Enter
gpg --edit-key GPG key ID, substituting in the GPG key ID you'd like to use. In the following example, the GPG key ID is3AA5C34371567BD2:$ gpg --edit-key 3AA5C34371567BD2 - 
Enter
gpg> adduidto add the user ID details.$ gpg> adduid - 
Follow the prompts to supply your real name, email address, and any comments. You can modify your entries by choosing
N,C, orE.Real Name: OCTOCAT Email address: "octocat@github.com" Comment: GITHUB-KEY Change (N)ame, (C)omment, (E)mail or (O)kay/(Q)uit? - 
Enter
Oto confirm your selections. - 
Enter your key's passphrase.
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Enter
gpg> saveto save the changes$ gpg> save - 
Enter
gpg --armor --export GPG key ID, substituting in the GPG key ID you'd like to use. In the following example, the GPG key ID is3AA5C34371567BD2:$ gpg --armor --export 3AA5C34371567BD2 # Prints the GPG key, in ASCII armor format - 
Upload the GPG key by adding it to your GitHub account.