How to publish an android app new license key?

Question

I'm finally ready to publish my first app. I went in to do the paid version and it said I need to add some code to my binary. I have no idea where that is. Here is what it says on the page (the dev guide seems to be out of date for this new method):

SERVICES & APIS
LICENSING & IN-APP BILLING
Licensing allows you to prevent unauthorized distribution of your app. It can also be used to verify in-app billing purchases. Learn more about licensing.

YOUR LICENSE KEY FOR THIS APPLICATION
Base64-encoded RSA public key to include in your binary. Please remove any spaces.

"a bunch of random numbers and letters"

Answer 1

You pretty much have to follow the steps detailed here.