Welcome to the resource topic for 2018/691
DIZK: A Distributed Zero Knowledge Proof System
Authors: Howard Wu, Wenting Zheng, Alessandro Chiesa, Raluca Ada Popa, Ion StoicaAbstract:
Recently there has been much academic and industrial interest in practical implementations of zero knowledge proofs. These techniques allow a party to prove to another party that a given statement is true without revealing any additional information. In a Bitcoin-like system, this allows a payer to prove validity of a payment without disclosing the payment’s details. Unfortunately, the existing systems for generating such proofs are very expensive, especially in terms of memory overhead. Worse yet, these systems are “monolithic”, so they are limited by the memory resources of a single machine. This severely limits their practical applicability. We describe DIZK, a system that distributes the generation of a zero knowledge proof across machines in a compute cluster. Using a set of new techniques, we show that DIZK scales to computations of up to billions of logical gates (100x larger than prior art) at a cost of 10$\mu$s per gate (100x faster than prior art). We then use DIZK to study various security applications.
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