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Scalable authentication of MPEG-4 streams

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2 Author(s)
Yongdong Wu ; Inf. Security Dept., Inst. for Infocomm Res., Singapore ; R. H. Deng

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.

Published in:

IEEE Transactions on Multimedia  (Volume:8 ,  Issue: 1 )