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2025-06-02 12:31:07 +02:00
# GNARK-Plonky2 Verifier CLI
This repository provides a Go-based CLI for compiling, proving, and verifying Plonky2-wrapped circuits using GNARK (either Plonk or Groth16). It automates:
- **Compilation** of the plonky2 verifier circuit (R1CS, PK, VK).
- **Proof generation** for compiled circuits.
- **Proof verification**.
---
## Prerequisites
- **Go 1.22+** installed.
---
## Installation
Clone this repository:
```bash
git clone https://github.com/codex-storage/proof-aggregation.git
cd proof-aggregation/gnark-wrapper
go mod tidy
chmod +x compile.sh prove.sh verify.sh test.sh
```
## Building the Verifier Binary
```bash
go build -o verifier .
```
## CLI Usage
The verifier binary has three modes:
`-compile`: Compiles circuit (outputs R1CS, PK, VK, Solidity contract).
`-prove`: Generates a proof for the compiled circuit.
`-verify`: Verifies an existing proof.
### Flags:
| Flag | Description | Default |
| --------------- | --------------------------------------- | ------------------ |
| `-circuit` | Directory containing Plonky2 JSON files | `./testdata/dummy` |
| `-data` | Output directory | `./gnark_output` |
| `-proof-system` | `"plonk"` or `"groth16"` | `"groth16"` |
| `-dummy` | Dummy setup (Groth16 only) | `"false"` |
| `-contract` | Generate Solidity verifier | `"true"` |
## Workflow
1. Prepare your Plonky2 JSON folder
This folder `testdata/dummy` must contain:
- `verifier_only_circuit_data.json`
- `proof_with_public_inputs.json`
- `common_circuit_data.json`
2. Compile:
```bash
./compile.sh ./testdata/dummy ./gnark_output groth16 false
```
Produces ./gnark_output/groth16/r1cs.bin, pk.bin, vk.bin, and Verifier.sol.
3. Prove:
```bash
./prove.sh ./testdata/dummy ./gnark_output groth16 false
```
Produces ./gnark_output/groth16/proof.json and public_witness.bin.
4. Verify:
```bash
./verify.sh ./testdata/dummy ./gnark_output groth16 false
```
Checks proof.json + vk.bin + public_witness.bin.
5. (Optional) Full end-to-end
```bash
./test.sh ./testdata/dummy ./gnark_output groth16 false
```
Calls compile → prove → verify in sequence.