A dual fragile watermarking based on hash for speech authentication
In order to achieve the integrity authentication of speech files, a hashbased dual fragile watermarking algorithm is proposed.In the proposed scheme,the speech signal is firstly transformed into a matrix, then each row and column of the matrix and the sensitive hash function are used to generate two fragile watermarks.In the process of tamper detection, extracted watermarks and reconstructed watermarks are employed to construct two verification vectors,which form a verification grid that helps to detect attacks and locate the forgery domain.Experimental results show that the fragile watermarks have good imperceptibility and vulnerability.More importantly, the proposed algorithm can not only detect attacks, but also accurately locate the tamped samples.
fragile watermarking hash function tamper detection precise location
QIAN Qing WANG Hongxia LI Jinfeng
School of Information Science and Technology, Southwest Jiaotong University, Chengdu 610031
国内会议
武汉
英文
385-392
2015-03-28（万方平台首次上网日期，不代表论文的发表时间）