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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.
|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|
|Number of pages||23|
|Publication status||Published - 25 Nov 2017|
|Name||Lecture Notes in Computer Science|