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    政大機構典藏 > 資訊學院 > 資訊科學系 > 期刊論文 >  Item 140.119/155682


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    題名: Privacy-Enhanced Data Sharing Systems from Hierarchical ID-Based Puncturable Functional Encryption with Inner Product Predicates
    作者: 左瑞麟
    Tso, Raylin;Lee, Cheng-Yi;Liu, Zi-Yuan;Mambo, Masahiro
    貢獻者: 資訊系
    日期: 2024-09
    上傳時間: 2025-02-14 10:20:10 (UTC+8)
    摘要: The emergence of cloud computing enables users to upload data to remote clouds and compute them. This drastically reduces computing and storage costs for users. Considering secure computing for multilevel users in enterprises, the notion of hierarchical identity-based inner product functional encryption (HIB-IPFE) is proposed. In this cryptosystem, a sender can encrypt a vector mathematical equation into a ciphertext with a hierarchical identity, while a receiver who possesses a secret key corresponding to the same hierarchical identity and a vector mathematical equation can decrypt the ciphertext and obtain the inner product mathematical equation. However, HIB-IPFE is not sufficient to capture flexible data sharing and forward security. In this study, we present a notion of hierarchical identity-based puncturable HIBP-IPFE. Furthermore, we present a formal definition and security model of HIBP-IPFE to guarantee data confidentiality and receiver anonymity. Compared with HIB-IPFE, our proposed scheme enables users to puncture keys on specific tags ensuring that the punctured keys cannot be used to decrypt the ciphertexts associated with those tags. The proposed scheme is provably secure under d-DBDHE assumption in the standard model. The experimental results indicate that our scheme is more practical in cloud computing, with superior functionality.
    關聯: IET Information Security
    資料類型: article
    DOI 連結: https://doi.org/10.1049/2024/5535196
    DOI: 10.1049/2024/5535196
    顯示於類別:[資訊科學系] 期刊論文

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