A practical design of content protection for H.264/AVC compressed videos by selective encryption and fingerprinting

Po Chyi Su, Chih Wei Hsu, Ching Yu Wu

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Digital Rights Management (DRM) of videos is an important issue nowadays. Considering that H.264/AVC videos will be widely used in various applications, we propose a practical design, which combines the methodologies of selective encryption and fingerprinting, for effective DRM of H.264/AVC streaming videos. A selective encryption scheme is first presented to scramble the video content by encrypting a small amount of data in the compressed bit-stream. The scrambled video is H.264-compliant to reduce the complexity of decoder since it can still be played without triggering errors in the decoding process. A fingerprinting scheme is then introduced to provide further protection. We extract a reasonable amount of data from the video and embed the watermark acting as the fingerprint of the video recipient. To acquire the high-quality video for viewing, the user has to decrypt the video obtained from a video server and then combine it with the watermarked data provided from a user information server. The resulting viewable video is thus fingerprinted to deter the user from illegally redistributing the content. Experimental results will demonstrate the feasibility of the proposed approach.

Original languageEnglish
Pages (from-to)529-549
Number of pages21
JournalMultimedia Tools and Applications
Volume52
Issue number2-3
DOIs
StatePublished - Apr 2011

Keywords

  • Digital rights management
  • Digital watermark
  • Fingerprinting
  • H.264/AVC
  • Selective encryption
  • Trailer tracking

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