Adequate information security is one of the basic requirements of all electronic business processes. It is crucial for effective solutions that the possibilities offered by security technology can be integrated with the commercial requirements of the applications. Here the positions of the experts involved are very diverse: some strive for as much security as possible, others only for as much security as is necessary.
The conference ISSE (Information Security Solutions Europe) is the outstanding forum for the interdisciplinary search for sustainable compromises and for the presentation of concepts which hold up in real life. This book offers the most recent papers in the area of strategies, technologies, applications and best practice.

The Information Security Solutions Europe Conference (ISSE) was started in 1999 by EEMA and TeleTrusT with the support of the European COlnmission and the German Federal Minis try of Technology and Economics. Today the annual conference is a fixed event in every IT security professional's calendar. The aim of ISSE is to support the development of a European information security culture and especially a cross-border framework for trustworthy IT ap plications for citizens, industry and administration. Therefore, it is important to take into con sideration both international developments and European regulations and to allow for the in terdisciplinary character of the information security field. In the five years of its existence ISSE has thus helped shape the profile of this specialist area. The integration of security in IT applications was initially driven only by the actual security issues considered important by experts in the field; currently, however, the economic aspects of the corresponding solutions are the most important factor in deciding their success. ISSE offers a suitable podium for the discussion of the relationship between these considerations and for the presentation of the practical implementation of concepts with their technical, or ganisational and economic parameters."