I want to create a salt-hash using node.js crypto lib without having to parse any hardcoded data.
What do I mean with hardcoded?
var salt, hardcodedString = "8397dhdjhjh";
crypto.createHmac('sha512', hardcodedString).update(salt).digest("base64");
Isn't there any other way how I can create a random string without using raw javascript, random functions or hardcoding something?
Regards
UPDATE
var Crypto = require('crypto')
, mongoose = require('mongoose');
module.exports = mongoose.model('User', new mongoose.Schema({
username: {
type: String
, required: true
, index: { unique: true, sparse: true }
, set: toLower
},
email: {
type: String
, required: true
, index: { unique: true, sparse: true }
, set: toLower
},
salt: {
type: String
, set: generateSalt
},
password: {
type: String
, set: encodePassword
}
}),'Users');
function toLower(string) {
return string.toLowerCase();
}
function generateSalt() {
//return Math.round((new Date().valueOf() * Math.random())) + '';
Crypto.randomBytes('256', function(err, buf) {
if (err) throw err;
return buf;
});
// return Crypto.randomBytes('256'); // fails to
}
function encodePassword(password) {
return password;
// TODO: setter has no access to this.salt
//return Crypto.createHmac('sha512', salt).update(password).digest("base64");
}
function authenticate(plainPassword) {
return encodePassword(plainPassword) === this.password;
}
A quick look at the documentation turns up the crypto.randomBytes
function.
var buf = crypto.randomBytes(16);
This returns a buffer containing raw bytes. If you want a string, you can use toString('base64')
or toString('hex')
.