淡江大學機構典藏:Item 987654321/45415
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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/45415


    Title: Cryptanalysis of the Hwang-Shi Proxy Signature Scheme
    Authors: Hwang, Min-shiang;Lee, Cheng-ch;Hwang, Shin-jia
    Contributors: 淡江大學資訊工程學系
    Keywords: cryptography;digital signature;one-way hash function;proxy signatures
    Date: 2002-11
    Issue Date: 2010-03-26 19:14:07 (UTC+8)
    Publisher: Amsterdam: I O S Press
    Abstract: Recently, Hwang and Shi proposed an efficient proxy signature scheme without using one-way hash functions. In their scheme, an original signer needn't send a proxy certificate to a proxy signer through secure channels. However, there are two public key substitution methods that can be used to attack their scheme. In this article, we show that their scheme is vulnerable to the public key substitution attacks
    Relation: Fundamenta Informaticae 53(2), pp.131-134
    Appears in Collections:[Graduate Institute & Department of Computer Science and Information Engineering] Journal Article

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