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    Distributed Storage Systems with Secure and Exact Repair - New Results

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    TandonStorage2014.pdf (116.6Kb)
    Downloads: 189
    Date
    2014-02
    Author
    Tandon, Ravi
    Amuru, SaiDhiraj
    Clancy, Thomas Charles III
    Buehrer, R. Michael
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    Abstract
    Distributed storage systems (DSS) in the presence of a passive eavesdropper are considered in this paper. A typical DSS is characterized by 3 parameters (n, k, d) where, a file is stored in a distributed manner across n nodes such that it can be recovered entirely from any k out of n nodes. Whenever a node fails, d ∈ [k, n) nodes participate in the repair process. In this paper, we study the exact repair capabilities of a DSS, where a failed node is replaced with its exact replica. Securing this DSS from a passive eavesdropper capable of wiretapping the repair process of any l < k nodes, is the main focus of this paper. Specifically, we characterize the optimal secure storagevs- exact-repair-bandwidth tradeoff region for the (4, 2, 3) DSS when l = 1 and the (n, n − 1, n − 1) DSS when l = n − 2.
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    http://hdl.handle.net/10919/84198
    Collections
    • Destination Area: Integrated Security (IS) [119]
    • Scholarly Works, Electrical and Computer Engineering [734]
    • Scholarly Works, Hume Center for National Security and Technology [28]

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