Sigurd Torkel Meldgaard (University of Aarhus, Denemark)
Wednesday, 23.3.2011, 12:30
We present an algorithm for implementing a secure oblivious RAM where the access pattern is perfectly hidden in the information theoretic sense, without assuming that the CPU has access to a random oracle. In addition we prove a lower bound on the amount of randomness needed for implementing an information theoretically secure oblivious RAM.
Authors: Ivan Damgård, Sigurd Meldgaard, Jesper Buus Nielsen