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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/95857

    Title: Efficient Improvements on Hwang-Chen's Multi-Proxy Multi-Signature Schemes
    Authors: Hwang, Shin-Jia
    Contributors: 淡江大學資訊工程學系
    Keywords: Proxy signatures;Multi-proxy signatures;Proxy multi-signatures;Multi-proxy multi-signatures;Insider attacks
    Date: 2005-06
    Issue Date: 2014-02-13
    Abstract: Lyuu and Wu proposed a new insider attack to forge multi-proxy multi-signature in Hwang-Chen's scheme without clerks. On Hwang-Chen's scheme with clerks, they also proposed their improvement. Except the extra computation cost announced by Lyuu and Wu, the communication cost cannot be reduced in their scheme while the cost can be reduced in Hwang-Chen's scheme. Moreover, their improvement needs a center which is more trustworthy than the one in Hwang-Chen's scheme. To remove extra costs and overhead of trustworthy centers, two efficient improvements are proposed.
    Relation: 第十五屆資訊安全會議論文集,8頁
    Appears in Collections:[資訊工程學系暨研究所] 會議論文

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