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    题名: A Generic Construction of Predicate Proxy Key Re-encapsulation Mechanism
    作者: 曾一凡;左瑞麟
    Tseng, Yi-Fan;Tso, Raylin
    Liu, Zi-Yuan
    贡献者: 資科系
    关键词: Predicate encryption;Predicate proxy reencryption;Generic construction;Single-hop;Unidirectional
    日期: 2021-09
    上传时间: 2023-02-06 14:30:44 (UTC+8)
    摘要: Proxy re-encryption (PRE), first formalized by Blaze et al . in 1998, allows a proxy entity to delegate the decryption right of a ciphertext from one party to another without obtaining the information of the plaintext. In order to achieve more flexible access control, the predicate proxy re-encryption (PPRE) is studied further. However, existing PPRE is restricted with the inner product predicate function. The problem of how to realize the PPRE of arbitrary predicate functions is still to be solved. In this paper, we propose two secure generic predicate proxy key re-encapsulation mechanisms (PPKREM). By applying the key encapsulation mechanism/ data encapsulation mechanism paradigm, our PPKREM can be converted to a PPRE. Consequently, the results open new avenues for building more flexible and fine-grained PPRE.
    關聯: Journal of Internet Technology, Vol.22, No.5, pp.1185-1197
    数据类型: article
    DOI 連結: https://doi.org/10.53106/160792642021092205020
    DOI: 10.53106/160792642021092205020
    显示于类别:[資訊科學系] 期刊論文

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