Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique
Reexamination Certificate
2006-02-07
2006-02-07
Jung, David (Department: 2134)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Particular communication authentication technique
C713S168000, C713S179000
Reexamination Certificate
active
06996717
ABSTRACT:
The semi-fragile watermark comprises a fragile watermark component and a robust watermark component. Features are extracted from the video stream and subsequent hashing and encryption processes are performed to generate the fragile watermark. The fragile watermark includes control data information at the block level as well as frame and group level information. The fragile watermark is added on top of the robust watermark, giving the system the ability to detect alteration at the block level as well as the group level. The resulting semi-fragile watermark has the advantage of being both sensitive to malicious attack while being robust enough to survive bit rate reduction and other types of manipulation typically performed on digital multimedia signals.
REFERENCES:
patent: 5991426 (1999-11-01), Cox et al.
patent: 6373960 (2002-04-01), Conover et al.
patent: 2002/0012445 (2002-01-01), Perry
patent: 2002/0031240 (2002-03-01), Levy et al.
“Watermarking MPEG Video”, 1998, [Retrieved from Internet Oct. 29, 2004], “http://hoffy.hoffyland.com/watermark/final.html”.
Bruce Schneier, 1996, John Wiley & Sons, Inc., “Applied Cryptography”, 38.
Watermark design pattern for intellectual property protection in electronic commerce applications Kwok, S.H.; Yang, C.C.; Tam, K.Y.; System Sciences, 2000. Proceedings of the 33rd Annual Hawaii International Conference on Jan. 4-7, 2000 Page(s):10 pp. vol. 2.
A novel fragile watermarking technique Shih, F.Y.; Yi-Ta Wu; Multimedia and Expo, 2004. ICME '04. 2004 IEEE International Conference on vol. 2, Jun. 27-30, 2004 Page(s):875-878 vol. 2.
Fragile watermark based on the Gaussian mixture model in the wavelet domain for image authentication Yuan, H.; Zhang, x.-P.; Image Processing, 2003. Proceedings. 2003 International Conference on vol. 1, Sep. 14-17, 2003 Page(s):I-505-8 vol. 1.
Coppersmith, Don, et al.; “Fragile Imperceptible Digital Watermark With Privacy Control”; Part of the IS&T/SPIE Conference on Security and Watermarking of Multimedia Contents; San Jose, California; Jan. 1999; SPIE vol. 3657; pp. 79-84.
Holliman, Matthew et al.; “Counterfeiting Attacks on Oblivious Block-wise Independent Invisible Watermarking Schemes”; IEEE Transactions on Image Processing; vol. 9, No. 3; Mar. 2000; pp. 432-441.
Dittmann, Jana et al.; Media-independent Watermarking Classification and the Need for Combining Digital Video and Audio Watermarking for Media Authentication; IEEE; 2000; pp. 62-67.
Hartung, Frank et al.; “Multimedia Watermarking Techniques”; Proceedings of the IEEE; vol. 87, No. 7; Jul. 1999; pp. 1079-1107.
Lin, Ching-Yung et al.; “Issues and Solutions for Authenticating MPEG Video”; Dept. of Electrical Engineering & New Media Technology Center, Columbia University, New York, New York; pp. 1-12.
Fridrich, Jiri; A Hybrid Watermark for Tamper Detection in Digital Images; Fifth International Symposium on Signal Processing and its Applications; ISSPA; Brisbane, Australia; Aug. 22-25, 1999; pp. 301-304.
Podilchuk, Christine I. et al.; “Image-Adaptive Watermarking Using Visual Models”; IEEE Journal on Selected Areas in Communications; vol. 16, No. 4; May 1998; pp. 525-539.
Wu, Min et al.; “Multi-level Data Hiding for Digital Image and Video”; Electrical Engineering Dept. Princeton Univ., Princeton, NJ; Panasonic Information & Networking Technologies Laboratory, Princeton, NJ; entire document.
Yin Peng
Yu Hong Heather
Jung David
Matsushita Electric - Industrial Co., Ltd.
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