Information and Communications Security 5th International Conference, ICICS 2003, Huhehaote, China, October 10-13, 2003, Proceedings - Perner, Petra; Perner, Petra; Gollmann, Dieter; Gollmann, Dieter; Zhou, Jianying; Zhou, Jianying (Springer Berlin Heidelberg : Imprint: Springer, 2003)