Adding a new GPG key to your GitHub account
To configure your GitHub account to use your new (or existing) GPG key, you'll also need to add it to your GitHub account.
Before adding a new GPG key to your GitHub account, you should have:
Supported GPG key algorithms
GitHub supports several GPG key algorithms. If you try to add a key generated with an unsupported algorithm, you may encounter an error.
When verifying a signature, we extract the signature and attempt to parse its key-id. We match the key-id with keys uploaded to GitHub. Until you upload your GPG key to GitHub, we cannot verify your signatures.
Adding a GPG key
In the upper-right corner of any page, click your profile photo, then click Settings.
In the user settings sidebar, click SSH and GPG keys.
Click New GPG key.
In the "Key" field, paste the GPG key you copied when you generated your GPG key.
Click Add GPG key.
To confirm the action, enter your GitHub password.