Windows Phone: How to Sign an App

Question

Once I have built an app for Windows Phone, how do I get a certificate and how do I sign it?

Answer 1

Assuming you mean signing for distribution on the Marketplace, you don't. When you submit your application for certification it will have a number of tests run on it, your authorisation requirements will be added automatically and the final package will be signed before being made available.

Answer 2

You don't. Submit it to AppHub for review. If it is accepted MS will sign it and place it in the marketplace for download.