End-To-End Security for Video Distribution: The Combination of Encryption, Watermarking, and Video Adaptation

Andras Boho, Glenn Van Wallendael, Ann Dooms, Jan De Cock, Geert Braeckman, Peter Schelkens, Bart Preneel, Rik Van de Walle
2013 IEEE Signal Processing Magazine  
Van de Walle, R. (2013). End-to-end security for video distribution: the combination of encryption, watermarking, and video adaptation. Signal Processing Magazine, IEEE 30(2) 97-107. Abstract Abstract. Content distribution applications such as digital broadcasting, video-on-demand services (VoD), video conferencing, surveillance and telesurgery are confronted with difficulties -besides the inevitable compression and quality challenges -with respect to intellectual property management,
more » ... nagement, authenticity, privacy regulations, access control etc. Meeting such security requirements in an end-to-end video distribution scenario poses significant challenges. If the entire content is encrypted at the content creation side, the space for signal processing operations is very limited. Decryption, followed by video processing and re-encryption is also to be avoided as it is far from efficient, complicates key management and could expose the video to possible attacks. Additionally, also when the content is delivered and decrypted, the protection is gone. Watermarking can complement encryption in these scenarios by embedding a message within the content itself containing for example ownership information, unique buyer codes or content descriptions. Ideally, securing the video distribution should therefore be possible throughout the distribution chain in a flexible way allowing the encryption, watermarking and encoding/transcoding operations to commute. This paper introduces the reader to the relevant techniques that are needed to implement such an end-to-end commutative security system for video distribution, and presents a practical solution for encryption and watermarking compliant with H.264/AVC and the upcoming HEVC (High
doi:10.1109/msp.2012.2230220 fatcat:nkz5vzmq7nbetnrkwewwrkj3ai