A Theoretical Framework for Data-Hiding Data Hiding in Digital and Printed Text Documents

Abstract

• Is the problem of text data-hiding data hiding too difficult to solve? • Answer depends on the application requirements: • If robust data-hiding is required (e.g. copyright protection): probably YES, the attacker can always use Optical Character Recognition. • If either semi-fragile or fragile data-hiding is required (e.g. identification, authentication and tamper proofing): NO • Goals: • New theoretical framework for the text data-hiding problem. • New semi-fragile text data-hiding method, color quantization, that is fully automatable, has high information embedding rate, is resistant to printing and scanning, and can be applied to both digital and printed text documents. Gel’fand Gel fand-Pinske