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ESORICS
2012
Springer

Third-Party Private DFA Evaluation on Encrypted Files in the Cloud

9 years 8 months ago
Third-Party Private DFA Evaluation on Encrypted Files in the Cloud
Motivated by the need to outsource file storage to untrusted clouds while still permitting limited use of that data by third parties, we present practical protocols by which a client (the third-party) can evaluate a deterministic finite automaton (DFA) on an encrypted file stored at a server (the cloud), once authorized to do so by the file owner. Our protocols provably protect the privacy of the DFA and the file contents from a malicious server and the privacy of the file contents (except for the result of the evaluation) from an honest-but-curious client (and, heuristically, from a malicious client). We further present simple techniques to detect client or server misbehavior.
Lei Wei 0004, Michael K. Reiter
Added 29 Sep 2012
Updated 29 Sep 2012
Type Journal
Year 2012
Where ESORICS
Authors Lei Wei 0004, Michael K. Reiter
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