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2010
IEEE

Trusted Storage over Untrusted Networks

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Trusted Storage over Untrusted Networks
We consider distributed storage over two untrusted networks, whereby coding is used as a means to achieve a prescribed level of confidentiality. The key idea is to exploit the algebraic structure of the Vandermonde matrix to mix the input blocks, before they are stored in different locations. The proposed scheme ensures that eavesdroppers with access to only one of the networks are unable to decode any symbol even if they are capable of guessing some of the missing blocks. Informationtheoretic techniques allow us to quantify the achievable level of confidentiality. Moreover, the proposed approach is shown to offer low complexity and optimal rate.
Paulo F. Oliveira, Luísa Lima, Tiago T. V.
Added 11 Feb 2011
Updated 11 Feb 2011
Type Journal
Year 2010
Where GLOBECOM
Authors Paulo F. Oliveira, Luísa Lima, Tiago T. V. Vinhoza, João Barros, Muriel Médard
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