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Ciphertext Expansion in Limited-Leakage Order-Preserving Encryption: A Tight Computational Lower Bound
Encrypting plaintexts CRYPTO
2018/6/5
Order-preserving encryption emerged as a key ingredient underlying the security of practical database management systems. Boldyreva et al. (EUROCRYPT '09) initiated the study of its security by introd...
A Ciphertext-Size Lower Bound for Order-Preserving Encryption with Limited Leakage
Symmetric Encryption Searchable Encryption Lower Bound
2017/11/27
We consider a recent security definition of Chenette, Lewi, Weis, and Wu for order-revealing encryption (ORE) and order-preserving encryption (OPE) (FSE 2016). Their definition says that the compariso...
Order-Preserving Encryption Secure Beyond One-Wayness
Order-preserving encryption secure encryption
2014/3/12
Semantic-security of individual bits under a ciphertext are fundamental notion in modern cryptography. In this work we present the first results about this fundamental problem for Order-Preserving Enc...
Key-Controlled Order-Preserving Encryption
order-preserving encryption database security cryptography
2010/7/13
In this paper we study order-preserving encryption (OPE), a primitive in the database community for allowing efficient range queries on ecrypted data. OPE was suggested by Agrawal et al [1], and was t...