After approval your master key would be giving to you.kindly save offline with your system notepad.Name it with a user name.Go to your steemit wallet click on it.Then after that click on permission,you will see your poster key and active key.click the front of the poster key to see your poster key and save it with your system notepad as well as your master key.Just do the same with your active key.But before you can see your active key you need to log in your acc again.Just give it a try.you will see the sensor right in front of your poster and active key.E.g-show key or hide key