Paper Unlock

Authors: Kaoutar Elkhiyaoui ; Melek Önen and Refik Molva

Affiliation: EURECOM, France

ISBN: 978-989-758-045-1

ISSN: 2184-2825

Keyword(s): Privacy Preserving Keyword Search, Delegation, Cloud.

Related Ontology Subjects/Areas/Topics: Applied Cryptography ; Cryptographic Techniques and Key Management ; Data and Application Security and Privacy ; Data Engineering ; Data Protection ; Databases and Data Security ; Information and Systems Security ; Privacy ; Privacy Enhancing Technologies ; Security and Privacy for Big Data ; Security and Privacy in IT Outsourcing ; Security and Privacy in the Cloud

Abstract: In this paper, we address the problem of privacy preserving delegated word search in the cloud. We consider a scenario where a data owner outsources its data to a cloud server and delegates the search capabilities to a set of third party users. In the face of semi-honest cloud servers, the data owner does not want to disclose any information about the outsourced data; yet it still wants to benefit from the highly parallel cloud environment. In addition, the data owner wants to ensure that delegating the search functionality to third parties does not allow these third parties to jeopardize the confidentiality of the outsourced data, neither does it prevent the data owner from efficiently revoking the access of these authorized parties. To these ends, we propose a word search protocol that builds upon techniques of keyed hash functions, oblivious pseudo-random functions and Cuckoo hashing to construct a searchable index for the outsourced data, %of distinct words in the encrypted outsou rced data, and uses private information retrieval of short information to guarantee that word search queries do not reveal any information about the data to the cloud server. Moreover, we combine attribute-based encryption and oblivious pseudo-random functions to achieve an efficient revocation of authorized third parties. The proposed scheme is suitable for the cloud as it can be easily parallelized. (More)

PDF ImageFull Text


Sign In Guest: Register as new SciTePress user now for free.

Sign In SciTePress user: please login.

PDF ImageMy Papers

You are not signed in, therefore limits apply to your IP address

In the current month:
Recent papers: 100 available of 100 total
2+ years older papers: 200 available of 200 total

Paper citation in several formats:
Elkhiyaoui, K.; Önen, M. and Molva, R. (2014). Privacy Preserving Delegated Word Search in the Cloud.In Proceedings of the 11th International Conference on Security and Cryptography - Volume 1: SECRYPT, (ICETE 2014) ISBN 978-989-758-045-1, ISSN 2184-2825, pages 137-150. DOI: 10.5220/0005054001370150

author={Kaoutar Elkhiyaoui. and Melek Önen. and Refik Molva.},
title={Privacy Preserving Delegated Word Search in the Cloud},
booktitle={Proceedings of the 11th International Conference on Security and Cryptography - Volume 1: SECRYPT, (ICETE 2014)},


JO - Proceedings of the 11th International Conference on Security and Cryptography - Volume 1: SECRYPT, (ICETE 2014)
TI - Privacy Preserving Delegated Word Search in the Cloud
SN - 978-989-758-045-1
AU - Elkhiyaoui, K.
AU - Önen, M.
AU - Molva, R.
PY - 2014
SP - 137
EP - 150
DO - 10.5220/0005054001370150

Login or register to post comments.

Comments on this Paper: Be the first to review this paper.