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Authors: Stefano Berlato 1 ; 2 ; Roberto Carbone 2 and Silvio Ranise 3 ; 2

Affiliations: 1 DIBRIS, University of Genoa, Genoa, Italy ; 2 Security and Trust Research Unit, Fondazione Bruno Kessler, Trento, Italy ; 3 Department of Mathematics, University of Trento, Trento, Italy

Keyword(s): Cryptographic Access Control, Experimental Assessment, Honest but Curious Cloud Service Provider.

Abstract: While organisations move their infrastructure to the cloud, honest but curious Cloud Service Providers (CSPs) threaten the confidentiality of cloud-hosted data. In this context, many researchers proposed Cryptographic Access Control (CAC) schemes to support data sharing among users while preventing CSPs from accessing sensitive data. However, the majority of these schemes focuses on high-level features only and cannot adapt to the multiple requirements arising in different scenarios. Moreover, (almost) no CAC scheme implementation is available for enforcement of authorisation policies in the cloud, and performance evaluation is often overlooked. To fill this gap, we propose the toolchain COERCIVE, short for CryptOgraphy killEd (the honest but) cuRious Cloud servIce proVidEr, which is composed of two tools: TradeOffBoard and CryptoAC. TradeOffBoard assists organisations in identifying the optimal CAC architecture for their scenario. CryptoAC enforces authorisation policies in the clou d by deploying the architecture selected with TradeOffBoard. In this paper, we describe the implementation of CryptoAC and conduct a thorough performance evaluation to demonstrate its scalability and efficiency with synthetic benchmarks. (More)

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Paper citation in several formats:
Berlato, S.; Carbone, R. and Ranise, S. (2021). Cryptographic Enforcement of Access Control Policies in the Cloud: Implementation and Experimental Assessment. In Proceedings of the 18th International Conference on Security and Cryptography - SECRYPT; ISBN 978-989-758-524-1; ISSN 2184-7711, SciTePress, pages 370-381. DOI: 10.5220/0010608003700381

@conference{secrypt21,
author={Stefano Berlato. and Roberto Carbone. and Silvio Ranise.},
title={Cryptographic Enforcement of Access Control Policies in the Cloud: Implementation and Experimental Assessment},
booktitle={Proceedings of the 18th International Conference on Security and Cryptography - SECRYPT},
year={2021},
pages={370-381},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0010608003700381},
isbn={978-989-758-524-1},
issn={2184-7711},
}

TY - CONF

JO - Proceedings of the 18th International Conference on Security and Cryptography - SECRYPT
TI - Cryptographic Enforcement of Access Control Policies in the Cloud: Implementation and Experimental Assessment
SN - 978-989-758-524-1
IS - 2184-7711
AU - Berlato, S.
AU - Carbone, R.
AU - Ranise, S.
PY - 2021
SP - 370
EP - 381
DO - 10.5220/0010608003700381
PB - SciTePress