Path ORAM

Author:

Stefanov Emil1,Dijk Marten Van2,Shi Elaine3,Chan T.-H. Hubert4,Fletcher Christopher5,Ren Ling6,Yu Xiangyao6,Devadas Srinivas6

Affiliation:

1. UC Berkeley, CA, USA

2. University of Connecticut, CT, USA

3. Cornell University, NY, USA

4. University of Hong Kong, Pokfulam Road, Hong Kong

5. University of Illinois at Urbana-Champaign, IL, USA

6. MIT CSAIL, MA, USA

Abstract

We present Path ORAM, an extremely simple Oblivious RAM protocol with a small amount of client storage. Partly due to its simplicity, Path ORAM is the most practical ORAM scheme known to date with small client storage. We formally prove that Path ORAM has a O (log N ) bandwidth cost for blocks of size B = Ω (log 2 N ) bits. For such block sizes, Path ORAM is asymptotically better than the best-known ORAM schemes with small client storage. Due to its practicality, Path ORAM has been adopted in the design of secure processors since its proposal.

Funder

NSF Graduate Research Fellowship

Hong Kong RGC

DoD NDSEG Fellowship

DARPA CRASH program

Amazon Web Services in Education program

Publisher

Association for Computing Machinery (ACM)

Subject

Artificial Intelligence,Hardware and Architecture,Information Systems,Control and Systems Engineering,Software

Reference65 articles.

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2. Practicing Oblivious Access on Cloud Storage

3. Dan Boneh David Mazieres and Raluca Ada Popa. 2011. Remote Oblivious Storage: Making Oblivious RAM practical. Manuscript. Retrieved from http://dspace.mit.edu/bitstream/handle/1721.1/62006/MIT-CSAIL-TR-2011-018.pdf. Dan Boneh David Mazieres and Raluca Ada Popa. 2011. Remote Oblivious Storage: Making Oblivious RAM practical. Manuscript. Retrieved from http://dspace.mit.edu/bitstream/handle/1721.1/62006/MIT-CSAIL-TR-2011-018.pdf.

4. Large-Scale Secure Computation: Multi-party Computation for (Parallel) RAM Programs

5. Oblivious Parallel RAM and Applications

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