Audio Digital Signature Algorithm with Tamper Detection

  title={Audio Digital Signature Algorithm with Tamper Detection},
  author={Xiaoyuan Yang and Xiang Wu and Minqing Zhang},
  journal={2009 Fifth International Conference on Information Assurance and Security},
An audio digital signature algorithm based on Principal Component Analysis (PCA) was presented. Wavelet packet decomposition was implemented to audio files, all the terminal coefficients of the wavelet packet decomposing tree were used as the data matrix. The matrix was chaotically encrypted, and then it was Principal Component Analysis that to get the eigenvector. Quantized eigenvector matrix was used as the signature, and the signature was embedded into the primal audio data by using… CONTINUE READING
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