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IPSJ Digital Courier
Vol. 1 (2005) P 381-393



Arbre is a file system that guarantees the integrity of the entire file system on an untrusted remote block-level storage system with a small amount of trusted storage. Arbre does not require changes to the remote block-level storage systems commercially available today. Even if an unauthorized person manages to get complete access to the storage system, they cannot modify or replay any data without being detected. This is achieved by organizing all file system blocks as a single tree and storing their hashes as a part of metadata to later verify the correctness of their contents.

Copyright © 2005 by the Information Processing Society of Japan

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