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    Please use this identifier to cite or link to this item: http://asiair.asia.edu.tw/ir/handle/310904400/5026


    Title: Cryptanalysis of A New Multi-Proxy Multi-Signature Scheme
    Authors: 孫宏民;謝濱燦;林宸堂
    Contributors: 成功大學資訊工程系;資訊工業策進會網路及通訊實驗室
    Keywords: proxy signature;multi-proxy multi-signature;multi-proxy signature;proxy multi-signature
    Date: 2002-05-16
    Issue Date: 2009-12-08 15:38:20 (UTC+8)
    Publisher: 亞洲大學
    Abstract: Recently, Hwang and Chen [5] proposed a variation of proxy signature scheme called the multi-proxy multi-signature scheme. In their scheme, an authorized group of proxy signers is allowed to sign message on behalf of a group of original singers. In this paper, we show that their multi-proxy multi-signature scheme is insecure against a kind of forgery attack in which an attacker can easily forge the signature for an arbitrary message. Furthermore, we also point out that the multi-proxy signature scheme in [2] also suffers from the same security flaw.
    Relation: 第十二屆全國資訊安全會議 151-154
    Appears in Collections:[行動商務與多媒體應用學系] 會議論文

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