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SEAL: Attack Mitigation for Encrypted Databases via Adjustable Leakage
encrypted databases leakage-abuse attack mitigation searchable encryption
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2019/7/15
Building expressive encrypted databases that can scale to large volumes of data while enjoying formal security guarantees has been one of the holy grails of security and cryptography research. Searcha...
The State of the Uniform: Attacks on Encrypted Databases Beyond the Uniform Query Distribution
Encrypted Database Attack Range Query
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2019/5/5
Recent foundational work on leakage-based attacks on encrypted databases has broadened our understanding of what an adversary can accomplish with a standard leakage profile. Nevertheless, all known va...
Efficient Private Comparison Queries over Encrypted Databases using Fully Homomorphic Encryption with Finite Fields
private queries encrypted database homomorphic encryption
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2019/4/3
To achieve security and privacy for data stored on the cloud, we need the ability to secure data in compute. Equality comparisons, ``x=y,x≠yx=y,x≠y'', have been widely studied with many proposals but ...
Encrypted Databases for Differential Privacy
structured encryption differential privacy statistical databases
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2018/11/14
The problem of privatizing statistical databases is a well-studied topic that has culminated with the notion of differential privacy. The complementary problem of securing these databases, however, ha...
Data Recovery on Encrypted Databases With k-Nearest Neighbor Query Leakage
Searchable Encryption Encrypted Databases Leakage-Abuse Attacks
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2018/8/2
Recent works by Kellaris et al. (CCS’16) and Lacharite et al. (SP’18) demonstrated attacks of data recovery for encrypted databases that support rich queries such as range queries. In this paper, we d...
Database management systems operating over encrypted data are gaining significant commercial interest. CryptDB is one such notable system supporting a variety SQL queries over encrypted data (Popa et ...
Better Security for Queries on Encrypted Databases
private queries encrypted database homomorphic encryption
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2016/5/18
Private database query (PDQ) processing has received much attention from the fields of both cryptography and databases. While previous approaches to design PDQ protocols exploit several cryptographic ...
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...
We propose storage efficient SQL-aware encrypted databases that preserve the format of the fields. We give experimental results of storage improvements in CryptDB using FNR encryption scheme.