django-passkeys 0.7.0

A Django Authentication Backend for Passkeys

django-passkeys

An extension to Django ModelBackend backend to support passkeys.

Passkeys is an extension to Web Authentication API that will allow the user to login to a service using another device.

This app is a slim-down version of django-mfa2

Passkeys are now supported on

• Apple Ecosystem (iPhone 16.0+, iPadOS 16.1, Mac OS X Ventura)
• Chromium based browsers (on PC and Laptop) allows picking up credentials from Android and iPhone/iPadOS.
• Android Credentials creation for ResidentKeys is currently in Beta.

Installation

pip install django-passkeys

Currently, it support Django 2.0+, Python 3.7+

Usage

1. in your settings.py add the application to your installed apps

   INSTALLED_APPS=(
   '......',
   'passkeys',
   '......')
   

2. Collect Static Files python manage.py collectstatic

3. Run migrate python manage.py migrate

4. Add the following settings to your file

    AUTHENTICATION_BACKENDS = ['passkeys.backend.PasskeyModelBackend'] # Change your authentication backend
    FIDO_SERVER_ID="localhost"      # Server rp id for FIDO2, it the full domain of your project
    FIDO_SERVER_NAME="TestApp"
    import passkeys
    KEY_ATTACHMENT = NONE | passkeys.Attachment.CROSS_PLATFORM | passkeys.Attachment.PLATFORM
   

5. Add passkeys to urls.py

   urls_patterns= [
   '...',
   url(r'^passkeys/', include('passkeys.urls')),
   '....',
    ]
   

6. To match the look and feel of your project, Passkeys includes base.html but it needs blocks named head & content to added its content to it. Note: You can override PassKeys_base.html which is used by Passkeys.html so you can control the styling better and current Passkeys_base.html extends base.html

7. Somewhere in your app, add a link to 'passkeys:home' <li><a href="{% url 'passkeys:home' %}">Passkeys</a> </li>

8. In your login view, change the authenticate call to include the request as follows

    user=authenticate(request, username=request.POST["username"],password=request.POST["password"])
   

9. Finally, In your login.html

   • Give an id to your login form e.g 'loginForm', the id should be provided when calling authn function
   • Inside the form, add

      <input type="hidden" name="passkeys" id="passkeys"/>
      <button class="btn btn-block btn-dark" type="button" onclick="authn('loginForm')"><img src="{% static 'passkeys/imgs/FIDO-Passkey_Icon-White.png' %}" style="width: 24px">
     {%include 'passkeys.js' %}
     

10. In authentication view, just pass the request as first parameter in authenticate

     user=authenticate(request, username=request.POST["username"],password=request.POST["password"])
    

For Example, See 'example' app and look at EXAMPLE.md to see how to set it up.

Detect if user is using passkeys

Once the backend is used, there will be a passkey key in request.session. If the user used a passkey then request.session['passkey']['passkey'] will be True and the key information will be there like this

{'passkey': True, 'name': 'Chrome', 'id': 2, 'platform': 'Chrome on Apple', 'cross_platform': False}

cross_platform: means that the user used a key from another platform so there is no key local to the device used to login e.g used an Android phone on Mac OS X or iPad. If the user didn't use a passkey then it will be set to False

{'passkey':False}

Check if the user can be enrolled for a platform authenticator

If you want to check if the user can be enrolled to use a platform authenticator, you can do the following in your main page.

<div id="pk" class="alert alert-info" style="display: none">Your device supports passkeys, <a href="{%url 'passkeys:enroll'%}">Enroll</a> </div>
<script type="text/javascript">
function register_pk()
    {
        $('#pk').show();
    }
{% include 'check_passkeys.js'%}
$(document).ready(check_passkey(true,register_pk))
</script>

check_passkey function paramters are as follows

• platform_authenticator: if the service requires only a platform authenticator (e.g TouchID, Windows Hello or Android SafetyNet)
• success_func: function to call if a platform authenticator is found or if the user didn't login by a passkey
• fail_func: function to call if no platform authenticator is found (optional).

Contributors

• mahmoodnasr