A new framework of LSB steganalysis of digital media

  • Authors:
  • S. Dumitrescu;Xiaolin Wu

  • Affiliations:
  • Dept. of Electr. & Comput. Eng., McMaster Univ., Hamilton, Ont., Canada;-

  • Venue:
  • IEEE Transactions on Signal Processing - Part II
  • Year:
  • 2005

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Abstract

We propose a general framework for the detection of the least significant bit (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 LSBs 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.