From 28bdd4508f895b835d11994e63971928004c42c9 Mon Sep 17 00:00:00 2001
From: Alexey <peretsmobil@gmail.com>
Date: Mon, 15 Jul 2019 21:59:39 +0300
Subject: [PATCH] utils tidy

---
 scripts/utils.js | 25 -------------------------
 1 file changed, 25 deletions(-)

diff --git a/scripts/utils.js b/scripts/utils.js
index 54fd797..2a9ebba 100644
--- a/scripts/utils.js
+++ b/scripts/utils.js
@@ -1,40 +1,15 @@
-// This file is a bit of a mess because of different bigInt formats in websnark and snarkjs
-// It will be rewritten during browser integration
-
-const fs = require('fs');
-const circom = require("circom");
 const snarkjs = require("snarkjs");
 const groth = snarkjs["groth"];
 const crypto = require("crypto");
 const circomlib = require('circomlib');
 const pedersen = circomlib.pedersenHash;
 const babyjub = circomlib.babyJub;
-const bigInt = snarkjs.bigInt;
-const buildGroth16 = require('websnark/src/groth16');
 const websnarkUtils = require('websnark/src/utils');
-const stringifyBigInts = require("websnark/tools/stringifybigint").stringifyBigInts;
-const unstringifyBigInts = require("websnark/tools/stringifybigint").unstringifyBigInts;
-const stringifyBigInts2 = require("snarkjs/src/stringifybigint").stringifyBigInts;
 const unstringifyBigInts2 = require("snarkjs/src/stringifybigint").unstringifyBigInts;
 
 const rbigint = (nbytes) => snarkjs.bigInt.leBuff2int(crypto.randomBytes(nbytes));
 const pedersenHash = (data) => babyjub.unpackPoint(pedersen.hash(data))[0];
 
-async function snarkProof(input) {
-  const witness = require("../build/circuits/withdraw.json");
-  const pwd = process.cwd();
-  let pathToProvingKey = 'build/circuits/withdraw_proving_key.bin';
-  if (pwd.split('/').pop() === 'scripts') {
-    pathToProvingKey = '../build/circuits/withdraw_proving_key.bin'
-  }
-  const proving_key = fs.readFileSync(pathToProvingKey);
-
-  const groth16 = await buildGroth16();
-  let proof = await websnarkUtils.genWitnessAndProve(groth16, input, witness, proving_key.buffer);
-
-  return websnarkUtils.toSolidityInput(proof);
-}
-
 async function snarkVerify(proof) {
   proof = unstringifyBigInts2(websnarkUtils.fromSolidityInput(proof));
   const verification_key = unstringifyBigInts2(require('../build/circuits/withdraw_verification_key.json'));