A Steganographic Embedding Undetectable by JPEG Compatibility Steganalysis

  • Authors:
  • Richard E. Newman;Ira S. Moskowitz;LiWu Chang;Murali M. Brahmadesam

  • Affiliations:
  • -;-;-;-

  • Venue:
  • IH '02 Revised Papers from the 5th International Workshop on Information Hiding
  • Year:
  • 2002

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Abstract

Steganography and steganalysis of digital images is a cat-and-mouse game. In recent work, Fridrich, Goljan and Du introduced a method that is surprisingly accurate at determining if bitmap images that originated as JPEG files have been altered (and even specifying where and how they were altered), even if only a single bit has been changed. However, steganographic embeddings that encode embedded data in the JPEG coefficients are not detectable by their JPEG compatibility steganalysis. This paper describes a steganographic method that encodes the embedded data in the spatial domain, yet cannot be detected by their steganalysis mechanism. Furthermore, we claim that our method can also be used as a steganographic method on files stored in JPEG format. The method described herein uses a novel, topological approach to embedding. The paper also outlines some extensions to the proposed embedding method.