JWT, JWKS, JOSE header etc. etc. etc. Do you feel lost in all of that shortcuts? This session explains in a simple way what JSON Web Token is and how you can utilize them in your daily job. In this talk I am going to cover in-depth JSON Web Tokens. Starting from the private/public key cryptography & signing data, through JSON Web Tokens (header, claims, signature), JSON Web Key Storage. I want also to describe what are the use-cases for JWTs and why are they better than other approaches.