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Paper 2016/563
Garbling Scheme for Formulas with Constant Size of Garbled Gates
Carmen Kempka and Ryo Kikuchi and Susumu Kiyoshima and Koutarou Suzuki
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)
- Category
- Cryptographic protocols
- Publication info
- Published by the IACR in ASIACRYPT 2015
- DOI
- 10.1007/978-3-662-48797-6_31
- Keywords
- garbled circuitsconstant size of garbled gatescorrelation robustnessPRIV-security
- Contact author(s)
- suzuki koutarou @ lab ntt co jp
- History
- 2016-06-03: received
- Short URL
- https://ia.cr/2016/563
- License
-
CC BY