Investigating the Structure Preserving Encryption of High Efficiency Video Coding (HEVC)

Zafar Shahid 1 William Puech 1
1 ICAR - Image & Interaction
LIRMM - Laboratoire d'Informatique de Robotique et de Microélectronique de Montpellier
Abstract : This paper presents a novel method for the real-time protection of new emerging High Efficiency Video Coding (HEVC) standard. Structure preserving selective encryption is being performed in CABAC entropy coding module of HEVC, which is significantly different from CABAC entropy coding of H.264/AVC. In CABAC of HEVC, exponential Golomb coding is replaced by truncated Rice (TR) up to a specific value for binarization of transform coefficients. Selective encryption is performed using AES cipher in cipher feedback mode on a plaintext of binstrings in a context aware manner. The encrypted bitstream has exactly the same bit-rate and is format complaint. Experimental evaluation and security analysis of the proposed algorithm is performed on several benchmark video sequences containing different combinations of motion, texture and objects.
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Zafar Shahid, William Puech. Investigating the Structure Preserving Encryption of High Efficiency Video Coding (HEVC). Electronic Imaging, Feb 2013, San Francisco, CA, United States. pp.86560N, ⟨10.1117/12.2011933⟩. ⟨lirmm-00830968⟩

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