OpenViSTAI · Agents · Blockchain · Crypto
Submit a project
Menu
ZK & Privacy

Fast

Fast, documented as gnark, is a Go library for designing zero-knowledge circuits and generating and verifying zk-SNARK proofs. Developers express circuit constraints through its frontend API and use backend components for proof creation and verification.

Explore the practical guide ↓

Independent OpenViST project profile, based on linked sources.

Fast — OpenViST project profile in ZK & Privacy.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use it when a project needs custom Go-defined circuits and a library workflow for proof creation and verification.

Who it is for

  • Go developers building applications that need zero-knowledge proofs.
  • Engineers implementing circuit-based proof generation or verification.
  • Developers learning about constraint systems, proving schemes and zk-SNARK circuits.

Documented uses

  • Express an algorithm as mathematical constraints in a Go circuit.
  • Generate a proof that secret inputs satisfy those constraints.
  • Verify a proof against the circuit and public inputs.
Before you choose

Requirements & limits

  • The circuit is written in Go, and the documented workflow separates constraint definition through the frontend from proof work through the backend.
  • Developers choose proving schemes and curves as part of implementation; the documentation provides material on both.
  • The documentation warns that the library makes no security guarantees, including constant-time behavior or side-channel resistance.
  • Published benchmark results are specific to the stated circuits and hardware, and the documentation cautions against treating comparisons as universal.

Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.

Source-based practical guide

Set up a first Go circuit and proof

Follow the documented first-proof path from installing gnark to generating a proof in Go.

Before you start

  • Go development environment
  • gnark documentation

Steps

  1. Install gnark.

  2. Define a circuit in Go.

  3. Generate a proof using the documented library workflow.

Expected outcome

A first circuit and proof generated in Go.

Guide limitations

  • The overview describes this path but does not provide installation commands or a complete step-by-step setup in the cited material.
Documentation 1 ↗
Evidence and transparency

Sources & review

docs.gnark.consensys.com ↗
Source record details
Source availability
Active
Sources checked
22 October 2026
Original website title
Fast, expressive zk-SNARKs in Go | gnark · Official homepage title · retained in its source language
How we review sourcesSuggest a correction