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Erschienen in:
2013 | OriginalPaper | Buchkapitel
Data Leak Detection as a Service
verfasst von : Xiaokui Shu, Danfeng (Daphne) Yao
Erschienen in: Security and Privacy in Communication Networks
Verlag: Springer Berlin Heidelberg
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We describe a network-based data-leak detection (DLD) technique, the main feature of which is that the detection does not reveal the content of the sensitive data. Instead, only a small amount of specialized digests are needed. Our technique – referred to as the
fuzzy fingerprint
detection – can be used to detect accidental data leaks due to human errors or application flaws. The privacy-preserving feature of our algorithms minimizes the exposure of sensitive data and enables the data owner to safely delegate the detection to others (e.g., network or cloud providers). We describe how cloud providers can offer their customers data-leak detection as an add-on service with strong privacy guarantees. We perform extensive experimental evaluation on our techniques with large datasets. Our evaluation results under various data-leak scenarios and setups show that our method can support accurate detection with very small number of false alarms, even when the presentation of the data has been transformed.