Test it for yourself

1. Download Google Authenticator for your phone

Google Authenticator is freely available for Android, iOS, and Blacberry devices

Open the web browser on your BlackBerry.
Visit m.google.com/authenticator
Download and install the application.

Enter your application name:
User name or email:

Random key generated for the user:

In real world you'd be saving this key against the user in your system, so you can do lookups using this key to validate the token

Enter the code you see in your phone in this box and click verify.