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A Comparison of Secure Multi-Tenancy Architectures for Filesystem Storage Clouds

Abstract : A filesystem-level storage cloud offers network-filesystem access to multiple customers at low cost over the Internet. In this paper, we investigate two alternative architectures for achieving multi-tenancy securely and efficiently in such storage cloud services. They isolate customers in virtual machines at the hypervisor level and through mandatory access-control checks in one shared operating-system kernel, respectively. We compare and discuss the practical security guarantees of these architectures. We have implemented both approaches and compare them using performance measurements we obtained.
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Anil Kurmus, Moitrayee Gupta, Roman Pletka, Christian Cachin, Robert Haas. A Comparison of Secure Multi-Tenancy Architectures for Filesystem Storage Clouds. 12th International Middleware Conference (MIDDLEWARE), Dec 2011, Lisbon, Portugal. pp.471-490, ⟨10.1007/978-3-642-25821-3_24⟩. ⟨hal-01597761⟩

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