node.js 'crypto' module does not recognize 'createHmac' method

[fabiocionini]

Current version of node-webkit seems to have a problem with the Crypto module in node.js:

calling crypto.createHmac, i.e.

var crypto = require('crypto');
var signature = crypto.createHmac('sha1', 'secret').update('string').digest('base64');

results in:

Uncaught TypeError: Object #<Crypto> has no method 'createHmac' 

[Ydro]

Because chrome already has a object named cypto. So you need rename it.
See: #713

[fabiocionini]

@Ydro thanks!

[Mithgol]

@fabiocionini See also other changes related to Node.