Institution: | (1) University of Lausanne, Institut de Sciences actuarielles, CH-1015 Lausanne, Switzerland, e-mail: daniel.neuenschwander@bluewin.ch, CH;(2) University of Bern, Institut für mathematische Statistik und Versicherungslehre, Sidlerstrasse 5, CH-3012 Bern, Switzerland, CH;(3) Federal Section of Cryptology, Department of Defense, CH-3003 Bern, Switzerland, CH |