Oblivious outsourced storage with delegation Conference

Franz, M, Williams, P, Carbunar, B et al. (2012). Oblivious outsourced storage with delegation . Lecture Notes in Computer Science, 7035 LNCS 127-140. 10.1007/978-3-642-27576-0_11

cited authors

  • Franz, M; Williams, P; Carbunar, B; Katzenbeisser, S; Peter, A; Sion, R; Sotakova, M

abstract

  • In the past few years, outsourcing private data to untrusted servers has become an important challenge. This raises severe questions concerning the security and privacy of the data on the external storage. In this paper we consider a scenario where multiple clients want to share data on a server, while hiding all access patterns. We propose here a first solution to this problem based on Oblivious RAM (ORAM) techniques. Data owners can delegate rights to external new clients enabling them to privately access portions of the outsourced data served by a curious server. Our solution is as efficient as the underlying ORAM constructs and allows for delegated read or write access while ensuring strong guarantees for the privacy of the outsourced data. The server does not learn anything about client access patterns while clients do not learn anything more than what their delegated rights permit. © 2012 Springer-Verlag.

authors

publication date

  • February 21, 2012

published in

Digital Object Identifier (DOI)

start page

  • 127

end page

  • 140

volume

  • 7035 LNCS