Author(s): Travis Mayberry, Erik-Oliver Blass, Agnes Hui Chan

Download: Paper (PDF)

Date: 22 Feb 2014

Document Type: Briefing Papers

Additional Documents: Slides

Associated Event: NDSS Symposium 2014


Traditionally, there have been two cryptographic techniques for hiding a client’s access pattern from an untrusted server: Private Information Retrieval, which involves expensive computation, and Oblivious RAM, which requires significant communication overhead. We present a hybrid system, using ideas from both, which overcomes the individual weaknesses of each to obtain significantly increased efficiency.