When It’s All Just Too Much: Outsourcing MPC-Preprocessing

Peter Scholl; Nigel Smart; Tim Wood

doi:10.1007/978-3-319-71045-7_4

When It’s All Just Too Much: Outsourcing MPC-Preprocessing

Peter Scholl, Nigel Smart, Tim Wood

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

3 Citations (Scopus)

Abstract

Many modern actively secure multi-party computation protocols make use of a function- and input-independent pre-processing phase. This pre-processing phase is tasked with producing some form of correlated randomness and distributing it to the parties. Whilst the “on-line” phase of such protocols is exceedingly fast, the bottleneck comes in the pre-processing phase. In this paper we examine situations in which the computing parties in the online phase may want to outsource the pre-processing phase to another set of parties, or to a sub-committee. We examine how this can be done, and also describe situations where this may be a benefit.

Original language	English
Title of host publication	Cryptography and Coding - IMACC 2017
Subtitle of host publication	16th IMA International Conference, IMACC 2017, Oxford, UK, December 12-14, 2017. Proceedings
Publisher	Springer
Pages	77-99
Number of pages	23
ISBN (Electronic)	9783319710457
ISBN (Print)	9783319710440
DOIs	https://doi.org/10.1007/978-3-319-71045-7_4
Publication status	Published - 25 Nov 2017

Publication series

Name	Lecture Notes in Computer Science
Publisher	Springer
ISSN (Print)	0302-9743

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TIPS Fellowship
Smart, N. P. (Principal Investigator)
1/10/16 → 30/09/21
Project: Research

Cite this

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When It’s All Just Too Much: Outsourcing MPC-Preprocessing. / Scholl, Peter; Smart, Nigel; Wood, Tim.
Cryptography and Coding - IMACC 2017: 16th IMA International Conference, IMACC 2017, Oxford, UK, December 12-14, 2017. Proceedings. Springer, 2017. p. 77-99 (Lecture Notes in Computer Science).

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

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AU - Smart, Nigel

AU - Wood, Tim

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N2 - Many modern actively secure multi-party computation protocols make use of a function- and input-independent pre-processing phase. This pre-processing phase is tasked with producing some form of correlated randomness and distributing it to the parties. Whilst the “on-line” phase of such protocols is exceedingly fast, the bottleneck comes in the pre-processing phase. In this paper we examine situations in which the computing parties in the online phase may want to outsource the pre-processing phase to another set of parties, or to a sub-committee. We examine how this can be done, and also describe situations where this may be a benefit.

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U2 - 10.1007/978-3-319-71045-7_4

DO - 10.1007/978-3-319-71045-7_4

M3 - Conference Contribution (Conference Proceeding)

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BT - Cryptography and Coding - IMACC 2017

PB - Springer

ER -

When It’s All Just Too Much: Outsourcing MPC-Preprocessing

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