Secure Data Management 4th VLDB Workshop, SDM 2007, Vienna, Austria,

Although a number of cryptography and security techniques have been around for quite some time, emerging technologies, such as ubiquitous computing and ambient intelligence that exploit increasingly interconnected networks, mobility and personalization, p

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Editorial Board David Hutchison Lancaster University, UK Takeo Kanade Carnegie Mellon University, Pittsburgh, PA, USA Josef Kittler University of Surrey, Guildford, UK Jon M. Kleinberg Cornell University, Ithaca, NY, USA Friedemann Mattern ETH Zurich, Switzerland John C. Mitchell Stanford University, CA, USA Moni Naor Weizmann Institute of Science, Rehovot, Israel Oscar Nierstrasz University of Bern, Switzerland C. Pandu Rangan Indian Institute of Technology, Madras, India Bernhard Steffen University of Dortmund, Germany Madhu Sudan Massachusetts Institute of Technology, MA, USA Demetri Terzopoulos University of California, Los Angeles, CA, USA Doug Tygar University of California, Berkeley, CA, USA Moshe Y. Vardi Rice University, Houston, TX, USA Gerhard Weikum Max-Planck Institute of Computer Science, Saarbruecken, Germany

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Willem Jonker Milan Petkovi´c (Eds.)

Secure Data Management 4th VLDB Workshop, SDM 2007 Vienna, Austria, September 23-24, 2007 Proceedings

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Volume Editors Willem Jonker Milan Petkovi´c Philips Research Europe High Tech Campus 34 5656 AE Eindhoven, The Netherlands E-mail: {willem.jonker, milan.petkovic} @philips.com

Library of Congress Control Number: 2007935172 CR Subject Classification (1998): H.2.0, H.2, C.2.0, H.3, E.3, D.4.6, K.6.5 LNCS Sublibrary: SL 3 – Information Systems and Application, incl. Internet/Web and HCI ISSN ISBN-10 ISBN-13

0302-9743 3-540-75247-1 Springer Berlin Heidelberg New York 978-3-540-75247-9 Springer Berlin Heidelberg New York

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Preface

Although a number of cryptography and security techniques have been around for quite some time, emerging technologies, such as ubiquitous computing and ambient intelligence that exploit increasingly interconnected networks, mobility and personalization, put new requirements on privacy and security with respect to data management. As data are accessible anytime anywhere, according to these new concepts, it becomes much easier to get unauthorized data access. As another consequence, the use of new technologies has brought some privacy concerns. It becomes simpler to collect, store, and search personal information and endanger people’s privacy. Therefore, research