On Information Leakage in Deduplicated Storage Systems
Hubert Ritzdorf, Ghassan Karame, Claudio Soriente, Srđjan Čapkun · 2016
Most existing cloud storage providers rely on data deduplication in order to significantly save storage costs by storing duplicate data only once. While the literature has thoroughly analyzed client-side information leakage associated with the use of data deduplication techniques in the cloud, no previous work has analyzed the information leakage associated with access trace information information (e.g., object size and timing) that are available whenever a client uploads a file to a curious cloud provider.