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Sign Git Commits with GPG or SSH

With GPG

Pre: GPG for GitHub and Gitea

https://docs.github.com/en/authentication/managing-commit-signature-verification/telling-git-about-your-signing-key#telling-git-about-your-gpg-key

git config --unset gpg.format

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/4BB6D45482678BE3 2016-03-10

Copy the GPG key ID after the /

git config user.signingkey 3AA5C34371567BD2

git config commit.gpgsign true

With SSH

Pre: SSH for GitHub and Gitea

https://docs.github.com/en/authentication/managing-commit-signature-verification/telling-git-about-your-signing-key#telling-git-about-your-ssh-key

git config gpg.format ssh

git config user.signingkey ~/.ssh/id_ed25519.pub

https://docs.github.com/en/authentication/managing-commit-signature-verification/signing-commits

git config commit.gpgsign true

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