Dear All, This weeks research day on Tuesday will be at the Computer Science Building. Speaker: Stefan Wolf Title: Classical and Quantum Entropic Security Time: 5 pm Place: IFW E42 (as the door will be locked you can call me to open the door: 27433) Abstract: Is it possible to encrypt a message with a short key such that even a computationally unbounded adversary gets no useful information? We discuss answers that have been given to this question, for classical as well as quantum messages. Cheers, Dejan