Need new recovery key to login to my Mac Pro

Apple........

What do I need to remember when I use two-step verification?

Two-step verification simplifies and strengthens the security of your Apple ID. After you turn it on, there's no way for anyone to access and manage your account other than by using your password, verification codes sent to your trusted devices, or your Recovery Key. Only you can reset your password, manage your trusted devices, or create a new Recovery Key. Apple Support can help you with other aspects of your service, but they aren't able to update or recover these three things for you. When you use two-step verification, you are responsible for:

Remembering your password

Keeping your trusted devices physically secure

Keeping your Recovery Key in a safe place

If you lose access to two of these three items at the same time, you could be locked out of your Apple ID permanently.

What if I lose my Recovery Key?

You can sign in to your Apple ID account page and create a new Recovery Key using your Apple ID password and one of your trusted devices.