Mozilla persona






28 March 2014                                                         IIEST, Kolkata

what IS?


A cross-browser login system for the Web



WHY?

  • Completely eliminates site-specific passwords

  • Easy to use and implement

  • No lock-in

  • Direct integration into browsers

  • Native support by email providers


browser COMPATIBILITY


Pfft..! Almost all browsers are supported.


Unsupported Browsers

  • IE Version < 6
  • Third party browsers on IOS



SECURITY

Persona takes all the burden.!


                  ..Though

  • Verify assertions on your server
  • Explicitly specify the audience parameter
  • Verify SSL certificates
  • Implement CSRF protection





quick setup


  1. Include the Persona JavaScript library on your pages.
  2. Add “login” and “logout” buttons.
  3. Watch for login and logout actions.
  4. Verify the user’s credentials.
  5. Review best practices.

1. include the persona library


Place the script tag :
<script src="https://login.persona.org/include.js"></script>

 Weeh! Thats it!


NOTE : You must include this on every page which uses navigator.id functions. navigator.id functions.

2. Add login and logout buttons


Just "CALL RESPECTIVE FUNCTIONS"

( Since designed as a DOM API )


FOR LOGIN

navigator.id.request()

FOR LOGOUT

navigator.id.logout()



2. Add login and logout buttons

               ..CONTD


Look at it! As simple as that ;)


var signinLink = document.getElementById('signin');
if (signinLink) {
  signinLink.onclick = function() { navigator.id.request(); };
}

var signoutLink = document.getElementById('signout');
if (signoutLink) {
  signoutLink.onclick = function() { navigator.id.logout(); };
}

3. watch for actions

<Tell Persona what to do>


Call navigator.id.watch() function supplying three parameters

  1. The e-mail address
  2. Function to invoke when onlogin is trigerred
  3. Function to invoke when onlogout is trigerred

4. verify the user credentials


No passowrds!! "identity assertions", persona call it.


Single-use, Single-site passwords combined with e-mail address

5. REVIEW BEST PRACTICES




You know it.!

HOW IT WORKS!


  1.  User Certificate Provosioning
  2.  Assertion Generation
  3.  Assertion Verification

user certificate provisioning

Assertion verification


the navigator.id api



  • Callback API

  • Observer API



CALLBACK API


  • Called back with a signed assertion
  • Can be customized ( Bgcolor, Site name.,)


var signin = document.getElementById('sign-in');
signin.addEventListener("click", getAssertion, false);

// get an assertion
function getAssertion() {
  navigator.id.get(verifyAssertion, {
                     backgroundColor: "#606B72",
                     siteName: "My Example Site"
                   });
}

OBSERVER API

<Three functions>

request() ; watch() ; logout()


request() -  Ask for signed assertion, but doesnt take a callback parameter

watch() - gets a call from request()


So, what's the difference??

RESOURCES


Developer Documentation - developer.mozilla.org/persona


Github - github.com/mozilla/browserid-roadmap


IRC - #identity on irc.mozilla.org




Questions?


@dolftax

Mozilla Persona

By Jaipradeesh

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Mozilla Persona

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