### Parameter-Hiding Order Revealing Encryption

David Cash, Feng-Hao Liu, Adam O'Neill, Mark Zhandry, and Cong Zhang

##### Abstract

Order-revealing encryption (ORE) is a popular primitive for outsourcing encrypted databases, as it allows for efficiently performing range queries over encrypted data. Unfortunately, a series of works, starting with Naveed et al. (CCS 2015), have shown that when the adversary has a good estimate of the distribution of the data, ORE provides little protection. In this work, we consider the case that the database entries are drawn identically and independently from a distribution of known shape, but for which the mean and variance are not (and thus the attacks of Naveed et al. do not apply). We define a new notion of security for ORE, called parameter-hiding ORE, which maintains the secrecy of these parameters. We give a construction of ORE satisfying our new definition from bilinear maps.

Available format(s)
Category
Secret-key cryptography
Publication info
Preprint. MINOR revision.
Keywords
Order Revealing Encryption
Contact author(s)
congresearch @ gmail com
mzhandry @ princeton edu
davidcash @ cs uchicago edu
amoneill @ gmail com
fenghao liu @ fau edu
History
Short URL
https://ia.cr/2018/698

CC BY

BibTeX

@misc{cryptoeprint:2018/698,
author = {David Cash and Feng-Hao Liu and Adam O'Neill and Mark Zhandry and Cong Zhang},
title = {Parameter-Hiding Order Revealing Encryption},
howpublished = {Cryptology ePrint Archive, Paper 2018/698},
year = {2018},
note = {\url{https://eprint.iacr.org/2018/698}},
url = {https://eprint.iacr.org/2018/698}
}

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