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Authors: Pierpaolo Cincilla ; Aymen Boudguiga ; Makhlouf Hadji and Arnaud Kaiser

Affiliation: IRT-SystemX, France

Keyword(s): Cloud Computing, Data Confidentiality, Encryption.

Related Ontology Subjects/Areas/Topics: Information and Systems Security ; Security and Privacy for Big Data ; Security and Privacy in the Cloud

Abstract: The emergence of cloud computing makes the use of remote storage more and more common. Clouds provide cheap and virtually unlimited storage capacity. Moreover, thanks to replication, clouds offer high availability of stored data. The use of public clouds storage make data confidentiality more critical as the user has no control on the physical storage device nor on the communication channel. The common solution is to ensure data confidentiality by encryption. Encryption gives strong confidentiality guarantees but comes with a price. The time needed to encrypt and decrypt data increases with respect to the size of input data, making encryption expensive. Due to its overhead, encryption is not universally used and a non-negligible amount of data is insecurely stored in the cloud. In this paper, we propose a new mechanism, called Light Blind, that allows confidentiality of data stored in the cloud at a lower time overhead than classical cryptographic techniques. The key idea of our work is to partition unencrypted data across multiple clouds in such a way that none of them can reconstruct the original information. In this paper we describe this new approach and we propose a partition algorithm with constant time complexity tailored for modern multi/many-core architectures. (More)

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Paper citation in several formats:
Cincilla, P.; Boudguiga, A.; Hadji, M. and Kaiser, A. (2015). Light Blind: Why Encrypt If You Can Share?. In Proceedings of the 12th International Conference on Security and Cryptography (ICETE 2015) - SECRYPT; ISBN 978-989-758-117-5; ISSN 2184-3236, SciTePress, pages 361-368. DOI: 10.5220/0005562203610368

@conference{secrypt15,
author={Pierpaolo Cincilla. and Aymen Boudguiga. and Makhlouf Hadji. and Arnaud Kaiser.},
title={Light Blind: Why Encrypt If You Can Share?},
booktitle={Proceedings of the 12th International Conference on Security and Cryptography (ICETE 2015) - SECRYPT},
year={2015},
pages={361-368},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005562203610368},
isbn={978-989-758-117-5},
issn={2184-3236},
}

TY - CONF

JO - Proceedings of the 12th International Conference on Security and Cryptography (ICETE 2015) - SECRYPT
TI - Light Blind: Why Encrypt If You Can Share?
SN - 978-989-758-117-5
IS - 2184-3236
AU - Cincilla, P.
AU - Boudguiga, A.
AU - Hadji, M.
AU - Kaiser, A.
PY - 2015
SP - 361
EP - 368
DO - 10.5220/0005562203610368
PB - SciTePress