Yet Another Compiler for Active Security or: Efficient MPC Over Arbitrary Rings

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Abstract

We present a very simple yet very powerful idea for turning any passively secure MPC protocol into an actively secure one, at the price of reducing the threshold of tolerated corruptions. Our compiler leads to a very efficient MPC protocols for the important case of secure evaluation of arithmetic circuits over arbitrary rings (e.g., the natural case of (formula presented)) for a small number of parties. We show this by giving a concrete protocol in the preprocessing model for the popular setting with three parties and one corruption. This is the first protocol for secure computation over rings that achieves active security with constant overhead.

OriginalsprogEngelsk
TitelAdvances in Cryptology – CRYPTO 2018 - 38th Annual International Cryptology Conference, 2018, Proceedings
RedaktørerHovav Shacham, Alexandra Boldyreva
Antal sider31
Vol/bind10992
UdgivelsesstedCham
ForlagSpringer VS
Publikationsdato2018
Sider799-829
ISBN (Trykt)978-3-319-96881-0
DOI
StatusUdgivet - 2018
BegivenhedAdvances in Cryptology – CRYPTO 2018 - UCSB, Santa Barbara, USA
Varighed: 19 aug. 201823 aug. 2018

Konference

KonferenceAdvances in Cryptology – CRYPTO 2018
LokationUCSB
Land/OmrådeUSA
BySanta Barbara
Periode19/08/201823/08/2018
NavnLecture Notes in Computer Science (LNCS)
Nummer10992
ISSN0302-9743

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