Agenda ------- * Intro and recap from last call * Focus: Header extensions * Question: Do we need E2E-protected header extensions at all? * Or can the MDD do whatever it wants with extensions? * Question: If the MDD is limited, what capabilities does it need with regard to extensions? * Change the [identifier numbers] * Append extensions * Append encrypted extensions * Remove extensions * Read encrypted extensions * Other? * Magnus: Discussion of header extensions * Wrap-up: Where are we on the questions?