Vue: Can not use crypto ？？？

[qk4089]

It is possible to write a demo js ,run with node

test.js

'use strict'

var crypto = require('crypto');
var encrypted = "";
var cip = crypto.createCipher('rc4', 'abc');
encrypted += cip.update('asd', 'binary', 'hex');
encrypted += cip.final('hex');
console.log(encrypted);

$ node text.js
weasdaf // 

but when i use in component,has a mistake

sorry, createCipher is not implemented yet

why?

[OpenGG]

Not related to Vue.js .