qtum account

index.js

const { PrivateKey, Networks } = require('qtumcore-lib');

// Qtum address is 'qUbxboqjBRp96j3La8D1RYkyqx5uQbJPoW'
//
// /dapp # qcli gethexaddress qUbxboqjBRp96j3La8D1RYkyqx5uQbJPoW
// 7926223070547d2d15b2ef5e7383e541c338ffe9
const privateKey = PrivateKey.fromWIF('cMbgxCJrTYUqgcmiC1berh5DFrtY1KeU4PXZ6NZxgenniF1mXCRk');

const privateKeyHex = '0x' + privateKey.toString().padStart(64, '0');
console.log(privateKeyHex);

const publicKey = privateKey.toPublicKey();
const address = publicKey.toAddress(Networks.testnet);
console.log(address);


const Web3 = require('web3');
const web3 = new Web3();


const message = "hi";
const signature = web3.eth.accounts.sign(message,privateKeyHex);

console.log("signature", signature);
const signer = web3.eth.accounts.recover(message, signature.signature);

console.log(signer);
// output: 0x6Fd56E72373a34bA39Bf4167aF82e7A411BFED47

package.json

{
  "name": "test",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "",
  "license": "ISC",
  "dependencies": {
    "qtumcore-lib": "0.0.1",
    "web3": "^1.0.0-beta.36"
  }
}