"# moodada"
after npm install
chain3\lib\utils\account.js
//var cryp = (typeof global === 'undefined') ? require('crypto-browserify') : require('crypto');
var cryp = require('crypto');
crypto install：
npm i --save react-native-crypto
npm i --save react-native-randombytes
react-native link react-native-randombytes
npm i --save-dev tradle/rn-nodeify
node_modules\.bin\rn-nodeify --hack --install