• search hit 1 of 5
Back to Result List

sec-cs: Getting the Most out of Untrusted Cloud Storage

  • We present sec-cs, a hash-table-like data structure for contents on untrusted storage that is provably secure and storage-efficient. We achieve authenticity and confidentiality with zero storage overhead using deterministic authenticated encryption. State-of-the-art data deduplication approaches prevent redundant storage of shared parts of different contents irrespective of whether relationships between contents are known a priori. Instead of just adapting existing approaches, we introduce novel (multi-level) chunking strategies, ML-SC and ML-CDC, which are significantly more storage-efficient than existing approaches in presence of high redundancy. We prove sec-cs's security, publish an implementation, and present evaluation results indicating suitability for, e.g., future backup systems that should preserve many versions of files on little available storage.

Export metadata

Additional Services

Share in Twitter Search Google Scholar
Metadaten
Author:Dominik Leibenger, Christoph Sorge
URL:http://ieeexplore.ieee.org/document/8109424/
DOI:https://doi.org/10.1109/LCN.2017.98
ISBN:978-1-5090-6523-3
Parent Title (English):2017 IEEE 42nd Conference on Local Computer Networks
Publisher:IEEE
Place of publication:Piscataway, NJ
Document Type:Conference Proceeding
Language:English
Date of Publication (online):2018/03/19
Publishing Institution:Deutsches Forschungsinstitut für öffentliche Verwaltung
Release Date:2018/03/19
Reviewed Document?:Ja
First Page:623
Last Page:631
Documents of the German Research Institute for Public Administration (FÖV):Sonstige Schriften
Licence (German):License LogoUrhG – es gilt deutsches Urheberrecht