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    A New Proxy Signature Scheme As Secure As ElGamal Signature

    138165_21232_PUB-SE-DOC-MM-54815.pdf (645.1Kb)
    Access Status
    Open access
    Authors
    Han, Song
    Chang, Elizabeth
    Wang, J.
    Liu, Wan-quan
    Date
    2005
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Han, Song and Chang, Elizabeth and Wang, Jie and Liu, Wan-quan. 2005. A New Proxy Signature Scheme As Secure As ElGamal Signature. World Academy of Science, Engineering and Technology. 11: pp. 27-31.
    Source Title
    World Academy of Science, Engineering and Technology
    ISSN
    20703740
    Faculty
    Curtin Business School
    School of Information Systems
    URI
    http://hdl.handle.net/20.500.11937/25126
    Collection
    • Curtin Research Publications
    Abstract

    Proxy signature helps the proxy signer to sign messages on behalf of the original signer. It is very useful when the original signer (e.g. the president of a company) is not available to sign a specific document. If the original signer can not forge valid proxy signatures through impersonating the proxy signer, it will be robust in a virtual environment; thus the original signer can not shift any illegal action initiated by herself to the proxy signer. In this paper, we propose a new proxy signature scheme. The new scheme can prevent the original signer from impersonating the proxy signer to sign messages. The proposed scheme is based on the regular ElGamal signature. In addition, the fair privacy of the proxy signer is maintained. That means, the privacy of the proxy signer is preserved; and the privacy can be revealed when it is necessary.

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