Welcome to the resource topic for 2019/275
Title:
MPCircuits: Optimized Circuit Generation for Secure Multi-Party Computation
Authors: M. Sadegh Riazi, Mojan Javaheripi, Siam U. Hussain, Farinaz Koushanfar
Abstract:Secure Multi-party Computation (MPC) is one of the most influential achievements of modern cryptography: it allows evaluation of an arbitrary function on private inputs from multiple parties without revealing the inputs. A crucial step of utilizing contemporary MPC protocols is to describe the function as a Boolean circuit. While efficient solutions have been proposed for special case of two-party secure computation, the general case of more than two-party is not addressed. This paper proposes MPCircuits, the first automated solution to devise the optimized Boolean circuit representation for any MPC function using hardware synthesis tools with new customized libraries that are scalable to multiple parties. MPCircuits creates a new end-to-end tool-chain to facilitate practical scalable MPC realization. To illustrate the practicality of MPCircuits, we design and implement a set of five circuits that represent real-world MPC problems. Our benchmarks inherently have different computational and communication complexities and are good candidates to evaluate MPC protocols. We also formalize the metrics by which a given protocol can be analyzed. We provide extensive experimental evaluations for these benchmarks; two of which are the first reported solutions in multi-party settings. As our experimental results indicate, MPCircuits reduces the computation time of MPC protocols by up to 4.2x.
ePrint: https://eprint.iacr.org/2019/275
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