EURASIP Journal on Information Security
Volume 2007 (2007), Article ID 94565, 20 pages
doi:10.1155/2007/94565
Research Article

Format-Compliant JPEG2000 Encryption in JPSEC: Security, Applicability, and the Impact of Compression Parameters

Dominik Engel, Thomas Stütz, and Andreas Uhl

Department of Computer Sciences, Salzburg University, Jakob-Haringerstr. 2, Salzburg 5020, Austria

Received 30 March 2007; Revised 2 July 2007; Accepted 22 October 2007

Academic Editor: E. Magli

Copyright © 2007 Dominik Engel et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

JPEG2000 encryption has become a widely discussed topic and quite a number of contributions have been made. However, little is known about JPEG2000 compression parameters and their influence on the security and performance of format, compliant encryption schemes. In this work, a thorough analysis of this topic is presented with a focus on format-compliant packet body encryption as sketched in the FCD 15444-8 (JPSEC). A proof for the reversibility of JPSEC format-compliant packet body encryption is given. As format-compliant packet body encryption preserves the JPEG2000 headers, which severely compromises the security, we additionally discuss packet header encryption with a special focus on format compliance and the influence of compression parameters on these schemes.