Volume 1, Issue 12, December 2011

Secure Computing in the Cloud (Dagstuhl Seminar 11491) Benny Pinkas, Ahmad-Reza Sadeghi, and Nigel P. Smart . . . . . . . . . . . . . . . . . . . . . . . .

1

Secure Architectures in the Cloud (Dagstuhl Seminar 11492) Sabrina De Capitani di Vimercati, Wolter Pieters, and Christian W. Probst . . . . . .

11

Visualization and Processing of Tensors and Higher Order Descriptors for Multi-Valued Data (Dagstuhl Seminar 11501) Carl-Fredrik Westin and Bernhard Burgeth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Design of Reversible and Quantum Circuits (Dagstuhl Seminar 11502) Kenichi Morita and Robert Wille . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

47

Privacy and Security in Smart Energy Grids (Dagstuhl Seminar 11511) Stefan Katzenbeisser, Klaus Kursawe, Bart Preneel, and Ahmad-Reza Sadeghi . . . .

62

D a g s t u h l R e p or t s , Vo l . 1 , I s s u e 1 2

ISSN 2192-5283

ISSN 2192-5283 Published online and open access by Schloss Dagstuhl – Leibniz-Zentrum für Informatik GmbH, Dagstuhl Publishing, Saarbrücken/Wadern, Germany. Online available at http://www.dagstuhl.de/dagrep Publication date March, 2012

Aims and Scope The periodical Dagstuhl Reports documents the program and the results of Dagstuhl Seminars and Dagstuhl Perspectives Workshops. In principal, for each Dagstuhl Seminar or Dagstuhl Perspectives Workshop a report is published that contains the following: an executive summary of the seminar program and the fundamental results,

Bibliographic information published by the Deutsche an overview of the talks given during the seminar Nationalbibliothek (summarized as talk abstracts), and The Deutsche Nationalbibliothek lists this publicasummaries from working groups (if applicable). tion in the Deutsche Nationalbibliografie; detailed This basic framework can be extended by suitable bibliographic data are available in the Internet at contributions that are related to the program of the http://dnb.d-nb.de. seminar, e.g. summaries from panel discussions or open problem sessions. License This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported Editorial Board license: CC-BY-NC-ND. Susanne Albers In brief, this license authorizes each and everybody to share (to copy, Bernd Becker distribute and transmit) the work under the followKarsten Berns ing conditions, without impairing or restricting the Stephan Diehl authors’ moral rights: Hannes Hartenstein Attribution: The work must be attributed to its Frank Leymann authors. Noncommercial: The work may not be used for commercial purposes.

Stephan Merz

No derivation: It is not allowed to alter or transform this work.

Han La Poutré

The copyright is retained by the corresponding authors.

Bernhard Nebel

Bernt Schiele Nicole Schweikardt Raimund Seidel Gerhard Weikum Reinhard Wilhelm (Editor-in-Chief )

Editorial Office Marc Herbstritt (Managing Editor) Jutka Gasiorowski (Editorial Assistance) Thomas Schillo (Technical Assistance) Contact Schloss Dagstuhl – Leibniz-Zentrum für Informatik Dagstuhl Reports, Editorial Office Oktavie-Allee, 66687 Wadern, Germany [email protected] Digital Object Identifier: 10.4230/DagRep.1.12.i

www.dagstuhl.de/dagrep