Name
Abstract | ||
|---|---|---|
Image authentication is important in content delivery via untrusted intermediaries, such as peer-to-peer (P2P) file sharing. Many differently encoded versions of the original image might exist. On the other hand, intermediaries might tamper with the contents. Distinguishing the legitimate diversity of encodings from malicious manipulation is the challenge addressed in this paper. We develop a novel approach based on distributed source coding for the problem of backward-compatible image authentication. The key idea is to provide a Slepian-Wolf encoded quantized image projection as authentication data. This version can be correctly decoded only with the help of an authentic image as side information. Distributed source coding provides the desired robustness against legitimate encoding variations, while detecting illegitimate modification. We demonstrate false acceptance rates close to zero for authentication data sizes that are only a few percent of the compressed image size. |
Year | DOI | Venue |
|---|---|---|
2007 | 10.1109/ICIP.2007.4379232 | ICIP (3) |
Keywords | Field | DocType |
ldpc codes,image coding,quantized image projection,quantisation (signal),index terms— image authentication,source coding,backward-compatible image authentication,peer-to-peer file sharing,message authentication,legitimate diversity,distributed source coding,image compression,slepian-wolf encoding,image authentication,indexing terms,ldpc code,p2p | Authentication,Message authentication code,Computer science,Source code,Theoretical computer science,Robustness (computer science),Distributed source coding,File sharing,Image resolution,Encoding (memory) | Conference |
Volume | ISSN | ISBN |
3 | 1522-4880 E-ISBN : 978-1-4244-1437-6 | 978-1-4244-1437-6 |
Citations | PageRank | References |
34 | 1.79 | 12 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Yao-chung Lin | 1 | 119 | 11.14 |
| David P. Varodayan | 2 | 513 | 32.71 |
| Bernd Girod | 3 | 8988 | 1062.96 |