LSB steganalysis based on high-order statistics

  • Authors:
  • Sorina Dumitrescu;Xiaolin Wu

  • Affiliations:
  • McMaster University, Hamilton, ON, Canada;McMaster University, Hamilton, ON, Canada

  • Venue:
  • MM&Sec '05 Proceedings of the 7th workshop on Multimedia and security
  • Year:
  • 2005

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Abstract

We propose a general framework for the detection of the LSB steganography using digital media files as cover objects. The new framework exploits high-order statistics of the samples. It can compute a robust estimate of the length of a secret message hidden in the least significant bits of samples for a large class of digital media contents such as image, video and audio, in which the underlying signals consist of correlated samples. A case study on the LSB steganalysis of natural grey-scale and color images and experimental results are reported.