Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Secure Clustered Distributed Storage Against Eavesdroppers   This paper considers the security issue of practical distributed storage
systems (DSSs) which consist of multiple clusters of storage nodes. Noticing
that actual storage nodes constituting a DSS are distributed in multiple
clusters, two novel eavesdropper models - the node-restricted model and the
cluster-restricted model - are suggested which reflect the clustered nature of
DSSs. In the node-restricted model, an eavesdropper cannot access the
individual nodes, but can eavesdrop incoming/outgoing data for $L_c$
compromised clusters. In the cluster-restricted model, an eavesdropper can
access a total of $l$ individual nodes but the number of accessible clusters is
limited to $L_c$. We provide an upper bound on the securely storable data for
each model, while a specific network coding scheme which achieves the upper
bound is obtained for the node-restricted model, given some mild condition on
the node storage size.

26
The categories of this paper are: bayes-an
34
The categories of this paper are: chem-ph
13
The categories of this paper are: quant-ph
21
The categories of this paper are: adap-org
3
The categories of this paper are: physics
15
The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg
10
The categories of this paper are: q-bio
28
The categories of this paper are: alg-geom
25
The categories of this paper are: patt-sol
17
The categories of this paper are: q-fin
9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
30
The categories of this paper are: q-alg
0
The categories of this paper are: hep-ph
24
The categories of this paper are: dg-ga