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Filters: Author is Matos, David R.  [Clear All Filters]
2019-01-31
Matos, David R., Pardal, Miguel L., Carle, Georg, Correia, Miguel.  2018.  RockFS: Cloud-Backed File System Resilience to Client-Side Attacks. Proceedings of the 19th International Middleware Conference. :107–119.

Cloud-backed file systems provide on-demand, high-availability, scalable storage. Their security may be improved with techniques such as erasure codes and secret sharing to fragment files and encryption keys in several clouds. Attacking the server-side of such systems involves penetrating one or more clouds, which can be extremely difficult. Despite all these benefits, a weak side remains: the client-side. The client devices store user credentials that, if stolen or compromised, may lead to confidentiality, integrity, and availability violations. In this paper we propose RockFS, a cloud-backed file system framework that aims to make the client-side of such systems resilient to attacks. RockFS protects data in the client device and allows undoing unintended file modifications.