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Abstract We present CHARON, a cloud-backed storage We present CHARON, a cloud-backed storage system capable of storing and sharing big data in a secure, reliable, and efficient way using multiple cloud providers and storage repositories to comply with the legal requirements of sensitive personal data. CHARON implements three distinguishing features: (1) it does not require trust on any single entity, (2) it does not require any client-managed server, and (3) it efficiently deals with large files over a set of geo-dispersed storage services. Besides that, we developed a novel Byzantine-resilient data-centric leasing protocol to avoid write-write conflicts between clients accessing shared repositories. We evaluate CHARON using micro and application-based benchmarks simulating representative workflows from bioinformatics, a prominent big data domain. The results show that our unique design is not only feasible but also presents an end-to-end performance of up to 2.5x better than other cloud-backed solutions. better than other cloud-backed solutions.
Author Ricardo Mendes + , Tiago Oliveira + , Vinicius Vielmo Cogo + , Nuno Ferreira Neves + , Alysson Bessani +
Journal IEEE Transactions on Cloud Computing  +
Key Mendes2019charon  +
Month oct  +
Note 10.1109/TCC.2019.2916856  +
NumPubDate 2,021.1  +
Pages 1349–1361  +
Project Project:SUPERCLOUD + , Project:BioBankCloud + , Project:DiSIEM + , Project:IRCoC +
ResearchLine Fault and Intrusion Tolerance in Open Distributed Systems (FIT) +
Title CHARON: A Secure Cloud-of-Clouds System for Storing and Sharing Big Data  +
Type article  +
Url  +
Volume 9  +
Year 2021  +
Categories Publication  +
Modification dateThis property is a special property in this wiki. 28 March 2022 13:16:09  +
NumberThis property is a special property in this wiki. 4  +
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