Helium: Scalable MPC among Lightweight Participants and under Churn

ePrint Report: Helium: Scalable MPC among Lightweight Participants and under Churn

Christian Mouchet, Sylvain Chatel, Apostolos Pyrgelis, Carmela Troncoso

We introduce Helium, a novel framework that supports scalable secure multiparty computation for lightweight participants and tolerates churn.
Helium relies on multiparty homomorphic encryption (MHE) as its core building block.
While MHE schemes have been well studied in theory, prior works fall short of addressing critical considerations paramount for adoption such as supporting resource-constrained participants and ensuring liveness and security under …

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