1) To begin, you will need to log into your cPanel. check here
2) Click the SSH Access icon under the Security section.
3) Click the Manage SSH Keys button.
4)Choose either the Generate a New Key or Import Key button.
If you choose to click the Generate a New Key, enter all the needed information.
Click the Generate Key button..
If you choose to click the Import Key, enter all the needed information,
Click the Import button.