A Rekeying Scheme for Encrypted Deduplication Storage based on NTRU

Ha, GuanXiong and Chen, Hang and Li, Ruiqi and Shao, Wei and Jia, Chunfu (2021) A Rekeying Scheme for Encrypted Deduplication Storage based on NTRU. EAI Endorsed Transactions on Security and Safety, 8 (27). e4. ISSN 2032-9393

Available under License Creative Commons Attribution No Derivatives.

Download (1MB) | Preview


Rekeying is a common way to protect outsourced data against key compromise and to enable data owners to enforce access control on their data. However, existing rekeying schemes are difficult to apply to the encryption dedu plication system which uses message-locked encryption for allowing the server to perform deduplication on users’ outsourced data. In this paper, we propose a new rekeying scheme named REEDBN, which leverages a proxy re-encryption based on NTRU to reduce thecommunicational cost for the system and the com putational overheads for clients during rekeying. We implement the prototype of our scheme and conduct testbed experiments. The results show that our system has much less communicational effort and computational overhead for clients than the previous scheme. Users can even rekey their outsourced data on some mobile terminals which only have limited computation power.

Item Type: Article
Uncontrolled Keywords: Cloud Storage, Deduplication, Rekeying, NTRU
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
QA75 Electronic computers. Computer science
T Technology > T Technology (General)
Depositing User: EAI Editor IV
Date Deposited: 09 Jul 2021 08:32
Last Modified: 09 Jul 2021 08:32
URI: https://eprints.eudl.eu/id/eprint/4401

Actions (login required)

View Item View Item