The 19th Annual IFIP Working Group 11.3 Working Conference on Data and Applications Security was held August 7-10, 2005 at the University of C- necticut in Storrs, Connecticut. The objectives of the working conference were to discuss in depth the current state of the researchand practice in data and - plicationsecurity, enableparticipantstobene'tfrompersonalcontactwithother researchers and expand their knowledge, support the activities of the Working...