Watermarking belongs to hide particular information, so that you can easily detect any tamper detection .It is used for confidenality, authentication and copy right protection. In this paper watermarking is done with the help of least significant bit technique (LSB).As LSB technique is used as it has less effect on image. This new algorithm is using LSB of original image and idoing ‘&&’ operati...

Ranjan V. Mannige, Charles L. Brooks III and Eugene I. Shakhnovich Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA Departments of Chemistry and Biophysics,University of Michigan, Ann Arbor, MI, USA Department of Molecular Biology, The Scripps Research Institute, La Jolla, CA, USA Center for Theoretical Biological Physics, UC San Diego, La Jolla, CA, USA To w...

Abstract We consider a generalization of the Hidden Number Problem for general moduli N , and prove that it can be solved with high probability if roughly 2(logN) aproximations of quality at least (logN) are given, and the multipliers are chosen uniformly at random from ZZ/NZZ. We prove a similar result in the case that the multipliers are chosen uniformly at random from (ZZ/NZZ) and N is the p...