Bitstream-Based JPEG Encryption in Real-time

Stefan Auer, Alexander Bliem, Dominik Engel, Andreas Unterweger

Research output: Chapter in Book/Report/Conference proceedingsConference contributionpeer-review

37 Citations (Scopus)


The authors propose a framework to encrypt Baseline JPEG files directly at bitstream level, i.e., without the need to recompress them. The authors' approach enables encrypting more than 25 pictures per second in VGA resolution, allowing real-time operation in typical video surveillance applications. In addition, their approach preserves the length of the bitstream while being completely format-compliant. Furthermore, the authors show that an attack on the encryption process, which partly relies on AES, is practically infeasible.

Original languageEnglish
Title of host publicationInternational Journal of Digital Crime and Forensics (IJDCF)
Number of pages14
Publication statusPublished - Jul 2013

Publication series

NameInternational Journal of Digital Crime and Forensics
PublisherIGI Global Publishing
ISSN (Print)1941-6210


  • Encryption
  • Framework
  • JPEG
  • Length-Preserving
  • Real-Time


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