Flexible authentication of images
Conference Proceeding Article
In this paper, we propose a novel authentication method for digital images that achieves fine authenticating granularity (e.g., block-level granularity). Its appealing flexibility lies in the fact that with only one piece of authenticating data (e.g., digital signature or message authentication code) spanning all blocks, each block can be independently authenticatedwhile ignoring the other blocks. In our method, the authenticating data are derived by means of theChinese Remainder Theorem. To further attest its flexibility, the method provides adjustable confidence by managing the public system parameters. Security issues, advantages, as well as limitations related to the method are addressed. A widerange of potential applications are envisioned to demonstrate its practical significance.
Authentication, Chinese remainder theorem, Localization, Digital image storage, Digital watermarking, Multimedia systems, Security of data, Set theory
Proceedings of SPIE: Visual Communications and Image Processing 2003: 8-11 July 2003, Lugano, Switzerland
City or Country
YANG, Yanjiang; BAO, Feng; and DENG, Robert H..
Flexible authentication of images. (2003). Proceedings of SPIE: Visual Communications and Image Processing 2003: 8-11 July 2003, Lugano, Switzerland. 5150, 1905-1911. Research Collection School Of Information Systems.
Available at: http://ink.library.smu.edu.sg/sis_research/1085