Paper 2015/950 Original: eprint.iacr.org/2015/950 ↗
A Compiler of Two-Party Protocols for Composable and Game-Theoretic Security, and Its Application to Oblivious Transfer
Abstract
In this paper, we consider the following question: Does composing protocols having game-theoretic security result in a secure protocol in the sense of game-theoretic security? In order to discuss the composability of game-theoretic properties, we study security of cryptographic protocols in terms of the universal composability (UC) and game theory simultaneously. The contribution of this paper is the following: (i) We propose a compiler of two-party protocols in the local universal composability (LUC) framework such that it transforms any two-party protocol secure against semi-honest adversaries into a protocol secure against malicious adversaries in the LUC framework; (ii) We consider the application of our compiler to oblivious transfer (OT) protocols, by which we obtain a construction of OT meeting both UC security and game-theoretic security.
Metadata
- Available format(s)
PDF- Category
- Cryptographic protocols
- Publication info
- Preprint.
- History
- 2015-09-30: last updated
- 2015-09-30: published
- Short URL
- https://ia.cr/2015/950
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2015/950,
author = {Shota Goto and Junji Shikata},
title = {A Compiler of Two-Party Protocols for Composable and Game-Theoretic Security, and Its Application to Oblivious Transfer},
howpublished = {Cryptology {ePrint} Archive, Paper 2015/950},
year = {2015},
url = {https://eprint.iacr.org/2015/950}
}