Using GPG

:package: You may need to add the gnupg package.

Generating a key

Start the key generation wizard:

gpg --full-generate-key

• Please select what kind of key you want: (1) RSA and RSA (default)
• What keysize do you want? 4096
• Key is valid for? 1y
• Is this correct? y
• Real name: Your name
• Email address: your_email@example.com
• Comment: Leave empty (unless you have a good reason to add one)
• Change (N)ame, (C)omment, (E)mail or (O)kay/(Q)uit? O
• Enter passphrase: Use a secure password here, keep it strong and remember you will have to type it frequently

Making it publicly available

Before publishing your key you must find out its ID.

gpg --list-keys --keyid-format SHORT  your_email@example.com

The output of that command will be similar to this:

pub   rsa4096/1234B1F3 2020-05-10
              ‾‾‾‾‾‾‾‾
uid                    Your name <your_email@example.com>
sub   rsa4096/5678ADE5 2020-05-10

Our key ID in this example is 1234B1F3, and with that we can publish it:

gpg --send-keys --keyserver pgp.mit.edu 1234B1F3