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篇名 |
A Novel Data Deduplication Scheme for Encrypted Cloud Databases
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並列篇名 | A Novel Data Deduplication Scheme for Encrypted Cloud Databases |
作者 | Jung-Shian Li、I-Hsien Liu、Chao-Yuan Lee、Chu-Fen Li、Chuan-Gang Liu |
英文摘要 | As the demand for data sharing and complex accesscontrol 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. |
起訖頁 | 1115-1126 |
關鍵詞 | Cloud storage、Network security、Cloud security、Data deduplication scheme、Encrypted database |
刊名 | 網際網路技術學刊 |
期數 | 202007 (21:4期) |
出版單位 | 台灣學術網路管理委員會 |
DOI |
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