These proceedings contain the papers accepted at the 2007 European PKI Workshop: Theory and Practice (EuroPKI 2007), held in Palma de Mallorca, Spain, during June 28–30, and hosted by the Computer Science Department of the University of Balearic Islands (UIB) with the support of the Balearic Islands Government and the Private Law Department at UIB. This year’s event was the fourth event in the EuroPKI Workshops series. Previous events of the series were held in: Samos, Greece (2004); Kent, UK (2005); and Turin, Italy, (2006). In response to the call for papers, 77 papers were submitted to this year’s workshop, setting a record of the highest number of papers submitted to an EuroPKI event so far and confirming an increased interest in PKI research and in the EuroPKI event. Each paper was reviewed by three members of the Program Committee, and evaluated on the basis of its significance, novelty, technical quality and relevance to the workshop. The paper selection process was very competitive: of the papers submitted, only 21 full papers and 8 short papers were selected for presentation at the workshop and inclusion in this volume.
Lecture Notes in Computer Science Commenced Publication in 1973 Founding and Former Series Editors: Gerhard Goos, Juris Hartmanis, and Jan van Leeuwen 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 4582 Javier Lopez Pierangela Samarati Josep L. Ferrer (Eds.) Public Key Infrastructure 4th European PKI Workshop: Theory and Practice, EuroPKI 2007 Palma de Mallorca, Spain, June 28-30, 2007 Proceedings 13 Volume Editors Javier Lopez University of Malaga, Computer Science Department, E.T.S.I. Informatica Campus Teatinos, 29071 Malaga, Spain E-mail:
[email protected] Pierangela Samarati Università degli Studi di Milano, Dipartimento di Tecnologie dell’Informazione v. Bramante 65, 26013 Crema, Italy E-mail:
[email protected] Josep L. Ferrer University of Balearic Islands, Computer Science Department 07122 Palma, Spain E-mail:
[email protected] Library of Congress Control Number: 2007929479 CR Subject Classification (1998): E.3, D.4.6, C.2.0, F.2.1, H.3, H.4, K.4.4, K.6.5 LNCS Sublibrary: SL 4 – Security and Cryptology ISSN ISBN-10 ISBN-13 0302-9743 3-540-73407-4 Springer Berlin Heidelberg New York 978-3-540-73407-9 Springer Berlin Heidelberg New York This work is subject to copyright. All rights are reserved, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, re-use of illustrations, recitation, broadcasting, reproduction on microfilms or in any other way, and storage in data banks. Duplication of this publication or parts thereof is