An Authenticating Algorithm with Multi-compression Compatible in DCT Domain

摘要：

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.

关键词： digital watermarking authentication discrete cosine transform multi-compression tamper detection

作者: Xiaoyuan Yang Yao Guo Ke Niu Xiang Wu

作者单位: Dept.of Electronics Technology,Engineering College of Armed Police Force Xian,China

会议类型: 国际会议

会议名称: The Fifth International Conference on Information Assurance and Security(第五届信息保障与安全国际会议)

会议地点: 西安

会议语种:英文

页码: 11-14

在线出版日期: 2009-08-18（万方平台首次上网日期，不代表论文的发表时间）