Multi-Client Order-Revealing Encryption

Jieun Eom, Dong Hoon Lee, Kwangsu Lee

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


Order-revealing encryption is a useful cryptographic primitive that provides range queries on encrypted data since anyone can compare the order of plaintexts by running a public comparison algorithm. Most studies on order-revealing encryption focus only on comparing ciphertexts generated by a single client, and there is no study on comparing ciphertexts generated by multiple clients. In this paper, we propose the concept of multi-client order-revealing encryption that supports comparisons not only on ciphertexts generated by one client but also on ciphertexts generated by multiple clients. We also define a simulation-based security model for the multi-client order-revealing encryption. The security model is defined with respect to the leakage function which quantifies how much information is leaked from the scheme. Next, we present two specific multi-client order-revealing encryption schemes with different leakage functions in bilinear maps and prove their security in the random oracle model. Finally, we give the implementation of the proposed schemes and suggest methods to improve the performance of ciphertext comparisons.

Original languageEnglish
Article number8434214
Pages (from-to)45458-45472
Number of pages15
JournalIEEE Access
Publication statusPublished - 2018 Aug 11

Bibliographical note

Funding Information:
This work was supported by the Institute for Information & communications Technology Promotion (IITP) through the Korea Government (MSIT) under Grant 2016-6-00600–A Study on Functional Encryption: Construction, Security Analysis, and Implementation.

Publisher Copyright:
© 2013 IEEE.


  • Bilinear maps
  • multi-client order-revealing encryption
  • order-revealing encryption
  • symmetric-key encryption

ASJC Scopus subject areas

  • General Computer Science
  • General Materials Science
  • General Engineering


Dive into the research topics of 'Multi-Client Order-Revealing Encryption'. Together they form a unique fingerprint.

Cite this