Web: https://iacr.org/news/item/19610

Nov. 21, 2022, 2:24 p.m. |

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ePrint Report: Ligero: Lightweight Sublinear Arguments Without a Trusted Setup

Scott Ames, Carmit Hazay, Yuval Ishai, Muthuramakrishnan Venkitasubramaniam

We design and implement a simple zero-knowledge argument protocol for $\mathsf{NP}$ whose communication complexity is proportional to the square-root of the verification circuit size. The protocol can be based on any collision-resistant hash function. Alternatively, it can be made non-interactive in the random oracle model, yielding concretely efficient zk-SNARKs that do not require a trusted setup or public-key cryptography. Our protocol is …

eprint report

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