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OTKI-F: An efficient memory-secure multi-keyword fuzzy search protocol.
- Source :
-
Journal of Computer Security . 2023, Vol. 31 Issue 2, p129-152. 24p. - Publication Year :
- 2023
-
Abstract
- Many breakthroughs on security and privacy-preserving techniques have emerged to mitigate the trust loss of cloud hosting environment caused by various types of attacks. To enhance memory-level security of multi-keyword fuzzy search, a widely occurred query request, we take the initiative to apply Trusted Execution Environment (a.k.a TEE) technology to our protocol design which provides hardware-based tamper-proof enclaves. Then we propose the Edit Distance-based Obfuscation Mechanism to further protect the query process executed outside TEE against access pattern leakage. With concerns of practicality and performance, we also propose the two-layer fuzzy index structure and Trend-aware Cache. The former addresses the space limitation of TEE memory for searching large datasets, while the latter optimizes the cache utility of TEE with trend-aware coordinator to effectively reduce the communication overhead. [ABSTRACT FROM AUTHOR]
- Subjects :
- *CLOUD computing
*TRUST
*KEYWORD searching
*CACHE memory
Subjects
Details
- Language :
- English
- ISSN :
- 0926227X
- Volume :
- 31
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Journal of Computer Security
- Publication Type :
- Academic Journal
- Accession number :
- 163330876
- Full Text :
- https://doi.org/10.3233/JCS-210145