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

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题名:	A practical design of content protection for H.264/AVC compressed videos by selective encryption and fingerprinting
作者:	Su,PC;Hsu,CW;Wu,CY
贡献者:	資訊工程學系
关键词:	WATERMARKING
日期:	2011
上传时间:	2012-03-27 18:57:18 (UTC+8)
出版者:	國立中央大學
摘要:	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.
關聯:	MULTIMEDIA TOOLS AND APPLICATIONS
显示于类别:	[資訊工程學系] 期刊論文

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