TY  - CHAP
U1  - Konferenzveröffentlichung
A1  - Leibenger, Dominik
A1  - Sorge, Christoph
T1  - sec-cs: Getting the Most out of Untrusted Cloud Storage
T2  - 2017 IEEE 42nd Conference on Local Computer Networks
N2  - 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.
Y1  - 2017
UR  - http://ieeexplore.ieee.org/document/8109424/
SN  - 978-1-5090-6523-3
SB  - 978-1-5090-6523-3
U6  - https://doi.org/10.1109/LCN.2017.98
DO  - https://doi.org/10.1109/LCN.2017.98
SP  - 623
EP  - 631
PB  - IEEE
CY  - Piscataway, NJ
ER  -