OSDI '04 Abstract
Pp. 121136 of the Proceedings
Secure Untrusted Data Repository (SUNDR)
Jinyuan Li, Maxwell Krohn, David Mazières, and Dennis Shasha, New York University
SUNDR is a network file system designed to store data
securely on untrusted servers. SUNDR lets clients detect
any attempts at unauthorized file modification by
malicious server operators or users. SUNDR's protocol
achieves a property called fork consistency, which guarantees
that clients can detect any integrity or consistency
failures as long as they see each other's file modifications.
An implementation is described that performs comparably
with NFS (sometimes better and sometimes worse),
while offering significantly stronger security.
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