A Robust and Secure Media Signature Scheme for JPEG Images

  • Authors:
  • Qibin Sun;Shih-Fu Chang

  • Affiliations:
  • Institute for Infocomm Research (I2R), Singapore 119613;Department of Electrical Engineering, Columbia University, New York City, USA 10027

  • Venue:
  • Journal of VLSI Signal Processing Systems
  • Year:
  • 2005

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Abstract

In [1---3], we have briefly introduced a robust and secure digital signature solution for multimedia content authentication, by integrating content feature extraction, error correction coding (ECC), watermarking and cryptographic signature into one unified framework. In this paper, we first study the difference between two types of distortions, namely incidental distortions which come from the defined acceptable content manipulations such as lossy compression, and intentional distortions which come from real attacks such as content copy-paste. We then introduce a new JPEG-compliant solution under our proposed framework but with different ECC and watermarking methods. Finally system performance evaluation and analysis will be given to further demonstrate the practicability of our method.