Progressive Share of Secret Audio by Chinese Remainder Theorem and Integer Wavelet Transform

Chien-Chang Chen ； Jian-Ying Huang

《International Journal of Electronic Commerce Studies》 5卷2期 (2014/12) Pp. 219-231

https://doi.org/10.7903/ijecs.1189

並列摘要

This study presents an (s, t, n) progressive scheme for sharing a secret audio. In an (s, t, n) progressive audio sharing scheme, n shared audios are generated from the secret audio, gathering s shared audios acquires coarse resolution of the secret audio, and using t shared audios reconstructs the original secret audio losslessly. The Chinese Remainder Theorem is adopted in the proposed scheme to share filter results acquired from a 1-D integer wavelet transform with different thresholds for satisfying the progressive property. First, the maximum wavelet layer number needed in a 1-D integer wavelet transform is determined from thresholds s and t. Then, the proposed scheme applies the secret audio to a 1-D integer wavelet transform for acquiring filter results under different layers. Lastly, all wavelet coefficients are partitioned to (t-s+1) groups and share each group with different thresholds. The experimental results demonstrate that the proposed scheme can share secret audios efficiently and progressively.

並列關鍵字

(s ； t ； n) Thresholds ； Secret Audio Sharing ； Progressive ； Chinese Remainder Theorem

參考文獻

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