Seminario di informatica: Data Deduplication and its Security Risks

Giovedì 10 Settembre 2015, ore 13:30 - Aula 2BC30 - Chia-Mu Yu



Giovedì 10 Settembre 2015 alle ore 13:30 in Aula 2BC30, Chia-Mu Yu (Yuan Ze University, Taiwan) terrà un seminario dal titolo "Data Deduplication and its Security Risks".

Cloud storage such as Dropbox and Bitcasa is one of the most popular cloud services. Currently, with the prevalence of mobile cloud computing, users can even collaboratively edit the newest version of documents and synchronize the newest files on their smart mobile devices. A remarkable feature of the current cloud storages is their virtually infinite storage. To support the unlimited storage, the cloud storage provider uses data deduplication technique to reduce the data to be stored and therefore reduce the storage expense. Moreover, the use of data deduplication also helps significantly reduce the need of bandwidth and therefore improve the user experience. Nevertheless, in spite of the above benefits, the data deduplication has its inherent security weaknesses. For example, the adversary may have an unauthorized file downloading via the file hash only. In this talk, we will introduce the inherent security risks of data deduplication, review previous solutions, identify their performance weaknesses, and raise potential countermeasures.

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