淡江大學機構典藏:Item 987654321/94388
English  |  正體中文  |  简体中文  |  全文笔数/总笔数 : 62822/95882 (66%)
造访人次 : 4028300      在线人数 : 576
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
搜寻范围 查询小技巧:
  • 您可在西文检索词汇前后加上"双引号",以获取较精准的检索结果
  • 若欲以作者姓名搜寻,建议至进阶搜寻限定作者字段,可获得较完整数据
  • 进阶搜寻


    jsp.display-item.identifier=請使用永久網址來引用或連結此文件: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/94388


    题名: 具音訊秘密分享功能之Android系統設計
    其它题名: Android system development on secret audio sharing scheme
    作者: 黃建螢;Huang, Jian-Ying
    贡献者: 淡江大學資訊工程學系資訊網路與通訊碩士班
    陳建彰
    关键词: Android系統設計;中國餘式定理;音訊秘密分享;Android system development;Chinese Remainder Theorem;secret audio sharing
    日期: 2013
    上传时间: 2014-01-23 14:32:46 (UTC+8)
    摘要: 音訊秘密分享以數學計算的方式進行機密音訊的分享與還原,故而能提供良好的還原品質,甚至以無失真還原的方式出現。音訊秘密分享技術具有(t,n)門檻值(t<=n 且 2<=n)的特性。分享時將機密音訊分享成n把金鑰及與金鑰相對應的分享音訊,n為分享者的數目,且每位分享者僅握有一把金鑰及一份分享音訊,還原時只要取得t把金鑰及與金鑰相對應的分享音訊,經過還原計算後,即可獲得原機密音訊。如此,我們便無須擔心部份金鑰及分享音訊遺失會造成機密音訊無法復原,或是因複製多份機密音訊而降低安全性的問題。本論文採用極具效益的中國餘式定理為分享技術,在Android平台實際開發以達到高效率的音訊秘密分享系統。
    This study presents an (s, t, n) progressive method for sharing an 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 secret audio, and using t shared audios can reconstruct the original secret audio losslessly. The Chinese Remainder Theorem is adopted in the proposed scheme to share coefficients acquired from 1-D integer wavelet transform with different thresholds. First, the maximum wavelet level number needed in 1-D integer wavelet transform is determined from thresholds s and t. Then, the proposed scheme applies the secret audio to 1-D integer wavelet transform for acquiring coefficients under different levels. At last, all wavelet coefficients are partitioned to (t-s+1) groups and share each group with different thresholds under inverse wavelet transform. Experimental results demonstrate that the proposed scheme can share secret audios efficiently and progressively.
    显示于类别:[資訊工程學系暨研究所] 學位論文

    文件中的档案:

    档案 大小格式浏览次数
    index.html0KbHTML187检视/开启

    在機構典藏中所有的数据项都受到原著作权保护.

    TAIR相关文章

    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - 回馈