The coding algorithm would likely be different in the SWTOR key and not work for Square Enix, but SE does have a Software Token app for both iOS and Android that is provided free of charge. The physical keys recently went through a price change, and I am not sure about the current price at the moment. But you can find the information about security and software keys at: https://secure.square-enix.com/account/app/svc/otpTop