An Authenticating Algorithm with Multi-compression Compatible in DCT Domain

作者：Yang Xiaoyuan^*; Guo Yao; Niu Ke; Wu Xiang

来源：5th International Conference on Information Assurance and Security, China, 2009-08-18 to 2009-08-20.

DOI：10.1109/IAS.2009.256

• digital watermarking
• authentication
• discrete cosine transform
• multi-compression
• tamper detection

If the user can compress the multimedia repeatedly, it will decrease the numbers of different resolution copies largely, and then reduce the transmission volume. Combining tamper-detection with DCT-based multi-compression will bring great benefit to the owner in copyright protection system. By embedding the information into the maximal quantized DCT coefficient, the user may make compression with the production in some distance, and finally the integrity, of the content will be authenticated. An authenticating algorithm with multi-compression compatible is presented in this paper. The experiment shows that this semi-fragile watermarking algorithm can meet the need of multi-compress, permit the authentication pass, detect the malicious tamper, and obtain better imperceptibility as well as robustness.

• 单位
  中国人民武装警察部队工程大学