Multipars: Reduced-Communication MPC over Z2k

ePrint Report: Multipars: Reduced-Communication MPC over Z2k

Sebastian Hasler, Pascal Reisert, Marc Rivinius, Ralf Küsters

In recent years, actively secure SPDZ-like protocols for dishonest majority, like SPD$\mathbb Z_{2^k}$, Overdrive2k, and MHz2k, over base rings $\mathbb Z_{2^k}$ have become more and more efficient. In this paper, we present a new actively secure MPC protocol Multipars that outperforms these state-of-the-art protocols over $\mathbb Z_{2^k}$ by more than a factor of 2 in the two-party setup in terms of communication. Multipars is the …

base communication eprint report mpc pascal protocol protocols report rings