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Paper 2016/453
SQL on Structurally-Encrypted Databases
Seny Kamara and Tarik Moataz
Abstract
We show how to encrypt a relational database in such a way that it can efficiently support a large class of SQL queries. Our construction is based solely on structured encryption and does not make use of any property-preserving encryption (PPE) schemes such as deterministic and order-preserving encryption. As such, our approach leaks considerably less than PPE-based solutions which have recently been shown to reveal a lot of information in certain settings (Naveed et al., CCS '15). Our construction achieves asymptotically optimal query complexity under very natural conditions on the database and queries.
Metadata
- Available format(s)
- Category
- Cryptographic protocols
- Publication info
- Preprint. MINOR revision.
- Keywords
- encrypted searchsearchable encryptionSQLdatabasesstructured encryption
- Contact author(s)
- tarik moataz @ colostate edu
- History
- 2017-09-22: last of 2 revisions
- 2016-05-10: received
- See all versions
- Short URL
- https://ia.cr/2016/453
- License
-
CC BY