Fast Protection of H.264/AVC by Selective Encryption - LIRMM - Laboratoire d’Informatique, de Robotique et de Microélectronique de Montpellier Access content directly
Conference Papers Year : 2009

Fast Protection of H.264/AVC by Selective Encryption

Zafar Shahid
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Marc Chaumont
William Puech


This paper proposes a new method for the protection of copyrighted multimedia content. Here the problems of compression and selective encryption (SE) have been simultaneously addressed for the state of the art video codec H.264/AVC. SE is performed in the context adaptive variable length coding (CAVLC) module of video codec. For this purpose, CAVLC is converted to an encryption cipher using permutation of equal length codes from a specific variable length coding (VLC) table. In our scheme, entropy coding engine serves the purpose of encryption step without affecting the coding efficiency of H.264/AVC by keeping the bitrate unchanged and generating completely compliant bit stream. Our scheme requires a negligible computational power. Nine different benchmark video sequences containing different combinations of motion, texture and objects are used for experimental evaluation of the proposed algorithm.
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Dates and versions

lirmm-00416013 , version 1 (11-09-2009)



Zafar Shahid, Marc Chaumont, William Puech. Fast Protection of H.264/AVC by Selective Encryption. Singaporean-French Ipal Symposium (SinFra), Feb 2009, Fusionopolis, Singapore. pp.11-21, ⟨10.1142/9789814277563_0002⟩. ⟨lirmm-00416013⟩
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