A chosen plaintext steganalysis of Hide4PGP v 2.0

Authors:
Debasis Mazumdar;Soma Mitra;Sonali Dhali;Sankar K. Pal
Affiliations:
CDAC,Kolkata, Kolkata;CDAC,Kolkata, Kolkata;CDAC,Kolkata, Kolkata;Machine Intelligence Unit, Indian Statistical Institute, Kolkata, India
Venue:
PReMI'05 Proceedings of the First international conference on Pattern Recognition and Machine Intelligence
Year:
2005

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Abstract

A chosen plaintext steganalysis algorithm is described to isolate the corrupted bits in an image tampered with Hide4PGP V 2.0. The method is developed from the notion of representation of two dimensional image data in terms of a linear bit stream consisting of a set of basic building blocks. Its performance for message extraction is demonstrated on different 24 bit BMP images.