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    Please use this identifier to cite or link to this item: https://ir.cnu.edu.tw/handle/310902800/34061

    標題: A Novel Data Deduplication Scheme for Encrypted Cloud Databases
    作者: Li, Jung-Shian
    Liu, I-Hsien
    Lee, Chao-Yuan
    Li, Chu-Fen
    Liu, Chuan-Gang
    貢獻者: Natl Cheng Kung Univ, Inst Comp & Commun Engn, Dept Elect Engn
    Natl Formosa Univ, Dept Finance, Huwei Township
    Chia Nan Univ Pharm & Sci, Dept Appl Informat & Multimedia
    關鍵字: Cloud storage
    Network security
    Cloud security
    Data deduplication scheme
    Encrypted database
    日期: 2020
    上傳時間: 2022-11-18 11:22:15 (UTC+8)
    出版者: Library & Information Center, Nat Dong Hwa Univ
    摘要: As the demand for data sharing and complex access-control policies continues to grow, traditional encryption mechanisms, which are generally established using a Public Key Infrastructure, face the problem of massive processing overheads and huge network bandwidth consumption. Attribute-Based Encryption (ABE) schemes have been proposed as a potential means of addressing these issues and have attracted great attention in recent years. Most previous studies on ABE focus on issues such as the revocation mechanism, multi-authority, the access structure design, and traceability. However, very few studies consider the storage efficiency problem and the present study proposes a novel data deduplication scheme based on ciphertext-policy ABE with convergent encryption and block-level data. The scheme can be deployed in third-party semi-trusted environments, and not only provides flexible, fine-grained access control over encrypted data, but also allows for the in-line elimination of redundancies in order to save cloud storage space. The experimental results show that the proposed scheme has an acceptable computational overhead and provides a promising solution for real-world data cloud storage and access scenarios.
    關聯: Journal of Internet Technology, v.21, n.4, pp.11
    Appears in Collections:[多媒體與遊戲發展系] 期刊論文

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