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 storage-vs-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.
Original language | English (US) |
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DOIs | |
State | Published - 2014 |
Externally published | Yes |
Event | 2014 IEEE Information Theory and Applications Workshop, ITA 2014 - San Diego, CA, United States Duration: Feb 9 2014 → Feb 14 2014 |
Other
Other | 2014 IEEE Information Theory and Applications Workshop, ITA 2014 |
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Country/Territory | United States |
City | San Diego, CA |
Period | 2/9/14 → 2/14/14 |
ASJC Scopus subject areas
- Computer Science Applications
- Information Systems