mnemonic-decrypter/index.js

Decrypts accounts from a provided mnemonic

"use strict";
/*
 * @DIIMIIM
 * 25 mar 2022
 * This code will return an array of accounts related to the mnemonic input
 * If no accounts limit is specified, then will return the first account
 */
const bip39 = require("bip39");
const { hdkey } = require('ethereumjs-wallet');
const wallet_hdpath = "m/44'/60'/0'/0/";


function decrypt(mnemonic, nrOfAccounts) {
	let accounts = [];

	try {
		
	    const seed = bip39.mnemonicToSeedSync(mnemonic);
	    const hdwallet = hdkey.fromMasterSeed(seed);
		const totalAccounts = nrOfAccounts ? nrOfAccounts : 1;

	    for ( let i = 0; i < totalAccounts; ++i ) {
	    	let wallet = hdwallet.derivePath(wallet_hdpath + i).getWallet();
	    	let address = "0x" + wallet.getAddress().toString("hex");
	    	let key = wallet.getPrivateKey().toString("hex");
	    	accounts.push({ address: address , key: key });
	    }

	} catch (err) {
		console.error(err);
	}

	return accounts;
}

exports.decrypt = decrypt