Paper 2018/090 Original: eprint.iacr.org/2018/090 ↗

Secure and Scalable Multi-User Searchable Encryption

Cédric Van Rompay
Refik Molva
Melek Önen
Abstract

By allowing a large number of users to behave as readers or writers, Multi-User Searchable Encryption (MUSE) raises new security and performance challenges beyond the typical requirements of Symmetric Searchable Encryption (SSE). In this paper we identify two core mandatory requirements of MUSE protocols being privacy in face of users colluding with the CSP and low complexity for the users, pointing that no existing MUSE protocol satisfies these two requirements at the same time. We then come up with the first MUSE protocol that satisfies both of them. The design of the protocol also includes new constructions for a secure variant of Bloom Filters (BFs) and multi-query Oblivious Transfer (OT).

Metadata
Available format(s)
PDF
Category
Public-key cryptography
Publication info
Preprint.
History
2018-01-28: last updated
2018-01-28: published
Short URL
https://ia.cr/2018/090
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2018/090,
      author = {Cédric Van Rompay and Refik Molva and Melek Önen},
      title = {Secure and Scalable Multi-User Searchable Encryption},
      howpublished = {Cryptology {ePrint} Archive, Paper 2018/090},
      year = {2018},
      url = {https://eprint.iacr.org/2018/090}
}
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