Paper 2016/563 Original: eprint.iacr.org/2016/563 ↗
Garbling Scheme for Formulas with Constant Size of Garbled Gates
Abstract
We provide a garbling scheme which creates garbled circuits of a very small constant size (four bits per gate) for circuits with fan-out one (formulas). For arbitrary fan-out, we additionally need only two ciphertexts per additional connection of each gate output wire. We make use of a trapdoor permutation for which we define a generalized notion of correlation robustness. We show that our notion is implied by PRIV-security, a notion for deterministic (searchable) encryption. We prove our scheme secure in the programmable random oracle model.
Metadata
- Available format(s)
PDF- Category
- Cryptographic protocols
- Publication info
- Preprint.
- History
- 2016-06-03: last updated
- 2016-06-03: published
- Short URL
- https://ia.cr/2016/563
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2016/563,
author = {Carmen Kempka and Ryo Kikuchi and Susumu Kiyoshima and Koutarou Suzuki},
title = {Garbling Scheme for Formulas with Constant Size of Garbled Gates},
howpublished = {Cryptology {ePrint} Archive, Paper 2016/563},
year = {2016},
url = {https://eprint.iacr.org/2016/563}
}