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    ASIA unversity > 資訊學院 > 資訊工程學系 > 期刊論文 >  Item 310904400/6371


    Please use this identifier to cite or link to this item: http://asiair.asia.edu.tw/ir/handle/310904400/6371


    Title: Robust t-out-of-n Oblivious Transfer Mechanism Based on CRT
    Authors: Chang, C. C.;Lee, J. S.
    Keywords: Oblivious transfer;Privacy;Communication;Blind signature;CRT
    Date: 2009-01
    Issue Date: 2009-12-17 14:57:35 (UTC+8)
    Publisher: Asia University
    Abstract: Providing private communications for involved participants, the oblivious transfer (OT) mechanism is an important component in many cryptography applications such as e-commerce, secret exchange, coin flipping by telephone and sending certified e-mail. Recently, Mu et al. extended the OT concept to a t-out-of-n version (denoted as ). They claim that the novel method allows the chooser to simultaneously obtain t messages from the sender in each protocol run. Wu et al.'s improvements make an OT mechanism more flexible and efficient. Unfortunately, we propose a strategy to demonstrate that their method is unable to provide the privacy of the sender in this article. Furthermore, we present a novel mechanism based on the concepts of blind signature and the Chinese remainder theorem. This novel mechanism achieves the essentials of general OT mechanisms.
    Relation: Journal of Network and Computer Applications 32(1):226-235
    Appears in Collections:[資訊工程學系] 期刊論文

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