Detection of LSB Steganography via Sample Pair Analysis

  • Sorina Dumitrescu
  • Xiaolin Wu
  • Zhe Wang
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2578)

Abstract

This paper introduces a new, principled approach to detecting LSB steganography in digital signals such as images and audio. It is shown that the length of hidden message embedded in the least significant bits of signal samples can be estimated with relatively high precision. The new steganalytic approach is based on some statistical measures of sample pairs that are highly sensitive to LSB embedding operations. The resulting detection algorithm is simple and fast. To evaluate the robustness of the proposed steganalytic approach, bounds on estimation errors are developed. Furthermore, the vulnerability of the new approach to possible attacks is also assessed, and counter measures are suggested.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2003

Authors and Affiliations

  • Sorina Dumitrescu
    • 1
  • Xiaolin Wu
    • 1
  • Zhe Wang
    • 1
  1. 1.Department of Electrical and Computer EngineeringMcMaster University HamiltonOntarioCanada

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