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    Please use this identifier to cite or link to this item: http://asiair.asia.edu.tw/ir/handle/310904400/5013


    Title: On the Improvement of the Security of Signcryption Scheme
    Authors: Fuw-Yi Yang;Jinn-Ke Jan
    Contributors: Institute of Applied Mathematics, National Chung Hsing University
    Keywords: Authenticated encryption;Non-repudiation;Signcryption;Unforgeability
    Date: 2002-05-16
    Issue Date: 2009-12-08 15:38:15 (UTC+8)
    Publisher: 亞洲大學
    Abstract: Zheng proposed two new authenticated encryption schemes, called signcryption, in 1997. But the studies of Petersen and Michels showed that these schemes have the problem “to achieve non-repudiation is to lose confidentiality”. They outlined a solution to solve the problem. Later, He and Wu pointed out that there are forged signatures in the scheme proposed by Petersen and Michels. They also proposed improvement to mend the leak in security. In this paper, we shall show that the scheme of He-Wu still violates the property of unforgeability. Also, a new scheme based on Nyperg-Rueppel digital signature is presented.
    Relation: 第十二屆全國資訊安全會議 59-62
    Appears in Collections:[行動商務與多媒體應用學系] 會議論文

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