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Secure Scalable Streaming Enabling Transcoding Without Decryption (2001)
| Venue: | IEEE ICIP |
| Citations: | 35 - 9 self |
BibTeX
@INPROCEEDINGS{Wee01securescalable,
author = {Susie Wee and John Apostolopoulos},
title = {Secure Scalable Streaming Enabling Transcoding Without Decryption},
booktitle = {IEEE ICIP},
year = {2001},
pages = {437--440}
}
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Abstract
We present a method of secure scalable streaming (SSS) that enables low-complexity and high-quality transcoding to be performed at intermediate, possibly untrusted, network nodes without compromising the end-to-end security of the system. SSS encodes video into secure scalable packets using jointly designed scalable coding and progressive encryption techniques. This combination allows downstream transcoders to perform transcoding operations such as bitrate reduction and spatial downsampling by simply truncating or discarding packets, and without decrypting the data. Secure scalable packets have unencrypted headers that can provide hints such as optimal truncation points to downstream transcoders. Using these hints, downstream transcoders can perform RD-optimal transcoding for fine-grain bitrate reduction. The SSS transcoding operation has low complexity and is stateless, so SSS transcoders can support many simultaneous transcoding sessions. SSS works with existing scalable image and video compression standards and systems including Motion JPEG-2000, 3D subband coding, and MPEG-4 FGS.
Keyphrases
secure scalable downstream transcoders secure scalable packet high-quality transcoding end-to-end security mpeg-4 fgs video compression standard bitrate reduction scalable image optimal truncation point scalable coding spatial downsampling ss transcoding operation fine-grain bitrate reduction motion jpeg-2000 ss transcoders network node subband coding low complexity secure scalable streaming progressive encryption technique
