Keystone has had multiple Token formats in the past. With JSON Web Signatures (JWS) we introduce yet another one. Why on earth would we want to do that?
It turns out that there are several reasons, including lessons learned from previous token formats like PKI and Fernet. In this talk, we discuss what tokens mean for distributed computing. We will focus on how the different token formats have provided trade offs in performance and scalability. Then we will dig in to the JWS format, how it works, and what benefits it will provide today. We'll close with a look at the future and the features we can buildon top of JWS.
It will help you understand this scale issues at the heart of OpenStack, and how tokens decision play a role in helping or hurting. It will prepare your organization for adoption JWT in the future.