International Association for Cryptologic Research

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Paper: A Fast Protocol for Computationally Private Information Retrieval

Authors:
Andy Parrish
Jonathan Trostle
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URL: http://eprint.iacr.org/2007/392
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Abstract: We present a new private information retrieval (PIR) protocol. The protocol is based on a single private, non-shared key cryptosystem; the security of this cryptosystem is based on a new hardness (secret base) assumption. We prove security for the secret base assumption in an extended generic group model. We also show parameters that ensure security against a lattice-based attack. We measure performance using the methodology in \cite{sion}; our scheme is orders of magnitude faster than any existing scheme and faster than the trivial protocol for the home user scenario.
BibTeX
@misc{eprint-2007-13672,
  title={A Fast Protocol for Computationally Private Information Retrieval},
  booktitle={IACR Eprint archive},
  keywords={cryptographic protocols /},
  url={http://eprint.iacr.org/2007/392},
  note={ jonathan.trostle@jhuapl.edu 13794 received 8 Oct 2007},
  author={Andy Parrish and Jonathan Trostle},
  year=2007
}