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    請使用永久網址來引用或連結此文件: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/68596

    題名: A Document Protection Scheme Using Innocuous Messages as Camouflage
    作者: 侯永昌;Hsu, C.S.;Tu, S.F.
    貢獻者: 淡江大學資訊管理學系
    關鍵詞: Document Protection Scheme;Steganography;Cryptography;Encoding Method
    日期: 2009-04
    上傳時間: 2011-10-23 13:18:26 (UTC+8)
    摘要: Lin and Lee proposed a document protection scheme which utilized a meaningful document to
    cover the secret document. Although some researchers extended and improved their scheme, the main
    drawbacks of Lin and Lee’s scheme are still left unsolved. The aim of our study is to propose a new document
    protection scheme to solve these drawbacks. Instead of encoding the secret codes into index numbers, we
    generate the cipher message through a series of comparisons between cheating codes and the logic operator
    XOR. Compared with other studies, ours have the following advantages: firstly, the selection of the cheating
    document needs not to be restricted to the character set of the secret document; secondly, the length of the
    encoded file is the same as that of the secret document; thirdly, the codes of the cipher message are almost
    uniformly distributed so is difficult to analyze without the key; fourthly, with the help of inner codes, our
    scheme is applicable to documents in any languages; finally, our scheme performs efficiently and is easy to
    關聯: WSEAS Transactions on Information Science and Applications 6(4), pp.694-703
    顯示於類別:[資訊管理學系暨研究所] 期刊論文





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