You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
67 lines
2.7 KiB
67 lines
2.7 KiB
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
|
|
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
|
|
return new (P || (P = Promise))(function (resolve, reject) {
|
|
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
|
|
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
|
|
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
|
|
step((generator = generator.apply(thisArg, _arguments || [])).next());
|
|
});
|
|
};
|
|
const fs = require("fs");
|
|
const { groth } = require('snarkjs');
|
|
const { stringifyBigInts, unstringifyBigInts } = require('ffjavascript').utils;
|
|
const WitnessCalculatorBuilder = require("circom_runtime").WitnessCalculatorBuilder;
|
|
const circomlib = require("circomlib");
|
|
const smt = require("circomlib").smt;
|
|
const Web3 = require("web3");
|
|
const nLevels = 5;
|
|
const coinCode = "0"; // refearing to ETH
|
|
const ethAmount = '1';
|
|
const amount = Web3.utils.toWei(ethAmount, 'ether');
|
|
exports.calcWitness = (wasm, secret, nullifier, commitments) => __awaiter(this, void 0, void 0, function* () {
|
|
const poseidon = circomlib.poseidon.createHash(6, 8, 57);
|
|
const commitment = poseidon([coinCode, amount, secret, nullifier]).toString();
|
|
let tree = yield smt.newMemEmptyTrie();
|
|
yield tree.insert(1, 0);
|
|
// old root
|
|
const rootOld = tree.root;
|
|
const resOld = yield tree.find(commitment);
|
|
if (resOld.found) {
|
|
console.error("leaf expect to not exist but exists");
|
|
}
|
|
let siblingsOld = resOld.siblings;
|
|
while (siblingsOld.length < nLevels) {
|
|
siblingsOld.push("0");
|
|
}
|
|
;
|
|
yield tree.insert(commitment, 0);
|
|
// new root
|
|
const rootNew = tree.root;
|
|
const resNew = yield tree.find(commitment);
|
|
if (!resNew.found) {
|
|
console.error("leaf expect to exist but not exists");
|
|
}
|
|
let siblingsNew = resNew.siblings;
|
|
while (siblingsNew.length < nLevels) {
|
|
siblingsNew.push("0");
|
|
}
|
|
;
|
|
// calculate witness
|
|
const input = unstringifyBigInts({
|
|
"coinCode": coinCode,
|
|
"amount": amount,
|
|
"secret": secret,
|
|
"nullifier": nullifier,
|
|
"siblingsOld": siblingsOld,
|
|
"siblingsNew": siblingsNew,
|
|
"rootOld": rootOld,
|
|
"rootNew": rootNew,
|
|
"commitment": commitment
|
|
});
|
|
const options = {};
|
|
const wc = yield WitnessCalculatorBuilder(wasm, options);
|
|
const w = yield wc.calculateWitness(input);
|
|
const witness = unstringifyBigInts(stringifyBigInts(w));
|
|
return witness;
|
|
});
|
|
//# sourceMappingURL=miksi.js.map
|