Deduplication vs Privacy Tradeoffs in Cloud Storage
Rodrigo Silva, Claúdio Correia, Miguel Pupo Correia, Luı́s Rodrigues · 2023
Users often encrypt files they store on cloud storage services to ensure data privacy. Unfortunately, without additional mechanisms, encrypting files prevents the use of server-side deduplication as two identical files will be different when encrypted. Encrypted deduplication techniques combines file encryption and data deduplication. This combination usually requires some form of direct or indirect coordination between the different clients.