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Erschienen in:
2019 | OriginalPaper | Buchkapitel
HABKS: Hierarchical Attribute-Based Keyword Search on Outsourcing Data
verfasst von : Jingyang Yu, Wenchang Shi, Bo Qin, Bin Liang
Erschienen in: Trusted Computing and Information Security
Verlag: Springer Singapore
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Abstract
Searching over encrypted data is a critical operation to enforce the encryption-before-outsourcing mechanism, which is a fundamental solution to protect data privacy in the untrusted cloud environment. However, most of the existing searchable encryption solutions suffer from the problem of key management and the problem of flexible and fine-grained access control in multi-data owners and multi-data users environment.
Therefore, we propose a hierarchical attribute-based keyword search (HABKS) scheme. Our scheme not only realizes the order management of the key because of its hierarchical structure, but also implements a flexible and fine-grained access control depending on CP-ABE for encrypting keywords indexes and data files. We formally prove the security of HABKS, and then analyze the performance of HABKS. Finally, we implement HABKS scheme with comprehensive experiments. Experiment results show that it is efficient and flexible for searching encrypted data in cloud.