ZK-SNARK Implementation in Javascript

This code is an example of ZK-SNARKS implementation in javascript.

Prerequisites

• Node.js

Installations

Run the the following commands to install snarks.js and circom

• npm install -g circom

• npm install -g snarkjs

Running the setup

Compiling the circuit

circom circuit.circom -o mycircuit.json

Running the javascript code

The code will check to see if a prover knows a number whose value is greater than or equal to 20. the input value can be changed to test this code In our example, we are using 21

const input = { "a": 21 }

To run the code use the following command

node index.js