Scalable authentication of MPEG-4 streams

• Main Authors: WU, Yongdong, DENG, Robert H.
• Format: text
• Language: English
• Published: Institutional Knowledge at Singapore Management University 2006
• Subjects: MPEG-4 stream; digital signature; erasure correction coding; flat authentication scheme; hierarchical authentication scheme; lossy network; progressive authentication scheme; Information Security
• Online Access: https://ink.library.smu.edu.sg/sis_research/1176; https://ink.library.smu.edu.sg/context/sis_research/article/2175/viewcontent/Scalable_authentication_of_MPEG_4_streams.pdf
• Institution: Singapore Management University

This paper presents three scalable and efficient schemes for authenticating MPEG-4 streams: the Flat Authentication Scheme, the Progressive Authentication Scheme, and the Hierarchical Authentication Scheme. All the schemes allow authentication of MPEG-4 streams over lossy networks by integrating seamlessly digital signatures and erasure correction coding with MPEG-4's fine granular scalability. A prominent feature of our schemes is their "sign once, verify many ways" property, i.e., they generate only one digital signature per compressed MPEG-4 object group, but allow clients to verify the authenticity of any down-scaled version of the original signed object group.