Cryptology ePrint Archive: Report 2015/1054

Computational Soundness of Uniformity Properties for Multi-party Computation based on LSSS

HUI ZHAO and Kouichi Sakurai

Abstract: We provide a symbolic model for multi-party computation based on linear secret-sharing scheme, and prove that this model is com- putationally sound: if there is an attack in the computational world, then there is an attack in the symbolic (abstract) model. Our original contri- bution is that we deal with the uniformity properties, which cannot be described using a single execution trace, while considering an unbounded number of sessions of the protocols in the presence of active and adaptive adversaries.

Category / Keywords: foundations /

Date: received 30 Oct 2015

Contact author: eric hui zhao at gmail com

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Version: 20151030:193257 (All versions of this report)

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