Sets up user authentication in a database in a pretty safe way. Now with bcrypt!
I'm thinking usage along these lines:
// db must provide get, set, and del methods
var db = require('./db')
var autheremin = require('autheremin')(db)
var username = 'antigone'
var password = '7xqJ3b8n'
autheremin.create(username, password, function(err) {
if (err) throw err
// username/password combination was created successfully
})
autheremin.verify(username, password, function(err) {
if (err) throw err
// username/password combination was verified against the database
})
autheremin.delete(username, function(err) {
if(err) throw err
// record with that username deleted from the database
})