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    ASIA unversity > 資訊學院 > 光電與通訊學系 > 期刊論文 >  Item 310904400/111514


    Please use this identifier to cite or link to this item: http://asiair.asia.edu.tw/ir/handle/310904400/111514


    Title: Cryptanalysis and Improvement of A ECDLP Based Proxy Blind Signature Scheme
    Authors: 李正吉;Lee, Cheng-Chi
    Contributors: 光電與通訊學系
    Date: 2018-03
    Issue Date: 2018-10-22
    Abstract: The proxy blind signature scheme (PBSS), allows the authorized proxy signer to use his proxy private key to create a legal blind signature on behalf of original signer. Recently, Alghazzawi, Salim and Hasan (A-S-H), presented the elliptic curve cryptography (ECC) based PBSS. However, we found their scheme is vulnerable to a linkability attack, which shows that there was lacked of unlinkability. In this paper, the improvements are being done in this regards in such a manner that the proposed signature scheme satisfies all the security properties, including unlinkability property. The security of the proposed PBSS rely on the elliptic curve discrete logarithm problem (ECDLP). The signature scheme presented can be implemented in low power and small processor device such as smart card.
    The proxy blind signature scheme (PBSS), allows the authorized proxy signer to use his proxy private key to create a legal blind signature on behalf of original signer. Recently, Alghazzawi, Salim and Hasan (A-S-H), presented the elliptic curve cryptography (ECC) based PBSS. However, we found their scheme is vulnerable to a linkability attack, which shows that there was lacked of unlinkability. In this paper, the improvements are being done in this regards in such a manner that the proposed signature scheme satisfies all the security properties, including unlinkability property. The security of the proposed PBSS rely on the elliptic curve discrete logarithm problem (ECDLP). The signature scheme presented can be implemented in low power and small processor device such as smart card.
    Relation: Journal of Discrete Mathematical Sciences and Cryptography
    Appears in Collections:[光電與通訊學系] 期刊論文

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