Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
DjangoCon - JSON Web Tokens
Search
José Padilla
September 04, 2014
Programming
15
11k
DjangoCon - JSON Web Tokens
DjangoCon US 2014 talk on JSON Web Tokens
José Padilla
September 04, 2014
Tweet
Share
More Decks by José Padilla
See All by José Padilla
Python, Government, and Contracts
jpadilla
0
37
Python, Government, and Contracts
jpadilla
0
4.7k
Python Type Hints
jpadilla
0
400
Developer Ergonomics
jpadilla
0
2k
BFTW: The Backend
jpadilla
4
180
eventos
jpadilla
0
150
JWT
jpadilla
2
410
Ember.js + Django
jpadilla
3
2.1k
UPRB Basic Workshop
jpadilla
2
190
Other Decks in Programming
See All in Programming
Hono・Prisma・AWSでGeoなAPI開発
nokonoko1203
5
680
API Platform for Laravel
dunglas
1
550
Rechartsで楽にゴリゴリにカスタマイズする!
10tera
1
170
実践!難読化ガイド
mitchan
0
230
The Shape of a Service Object
inem
0
530
Rubyのobject_id
qnighy
6
1.3k
Amazon BedrockでサーバレスなAIお料理ボットを作成する!!
tosuri13
0
230
GraphQLの魅力を引き出すAndroidクライアント実装
morux2
3
800
Ebitengineの1vs1ゲーム WebRTCの活用
ponyo877
0
380
Ruby Parser progress report 2024
yui_knk
2
230
Go1.23で入った errorsパッケージの小さなアプデ
kuro_kurorrr
2
400
オートマトン学習しろ / Do automata learning
makenowjust
3
130
Featured
See All Featured
How GitHub Uses GitHub to Build GitHub
holman
472
290k
Intergalactic Javascript Robots from Outer Space
tanoku
268
26k
Fashionably flexible responsive web design (full day workshop)
malarkey
401
65k
CoffeeScript is Beautiful & I Never Want to Write Plain JavaScript Again
sstephenson
158
15k
Why You Should Never Use an ORM
jnunemaker
PRO
53
8.9k
Fireside Chat
paigeccino
31
2.9k
Embracing the Ebb and Flow
colly
83
4.4k
XXLCSS - How to scale CSS and keep your sanity
sugarenia
246
1.3M
Git: the NoSQL Database
bkeepers
PRO
425
64k
A Philosophy of Restraint
colly
202
16k
The Art of Programming - Codeland 2020
erikaheidi
48
13k
Web development in the modern age
philhawksworth
205
10k
Transcript
JWT
“jot”
JSON Web Tokens
José Padilla
Flickr: Bryan Vincent
Co-founder at blimp.io
/jpadilla
jpadilla.com
Why?
Single Sign-on
Action Links
Webhooks
Token-based Auth
What?
“Compact URL-safe means of representing claims to be transferred between
two parties. The claims in a JWT are encoded as a JSON object that is digitally signed using JSON Web Signature (JWS).” - IETF.
None
None
None
None
None
None
JOSE
JavaScript Object Signing and Encryption
JWA
JSON Web Algorithms
JWK
JSON Web Key
JWT
JSON Web Token
JWS
JSON Web Signature
JWE
JSON Web Encryption
Today it’s all about JWT
How?
Internet-Draft
eyJ0eXAiOiJKV1QiLCJhbGciOi JIUzI1NiJ9.eyJ1c2VyX2lkIjo xfQ.xpCS8TTq1a53OIps1ByTdm 6Sh-A1ZoCId3e2YYWjapU
eyJ0eXAiOiJKV1QiLCJhbGciOi JIUzI1NiJ9.eyJ1c2VyX2lkIjo xfQ.xpCS8TTq1a53OIps1ByTdm 6Sh-A1ZoCId3e2YYWjapU
{ "typ": "JWT", "alg": "HS256" } eyJ0eXAiOiJKV1QiLCJhbGciOi JIUzI1NiJ9.eyJ1c2VyX2lkIjo xfQ.xpCS8TTq1a53OIps1ByTdm 6Sh-A1ZoCId3e2YYWjapU
import json import hmac from hashlib import sha256 from base64
import urlsafe_b64encode ! segments = [] ! header_dict = { 'typ':'JWT', 'alg': 'HS256' } ! json_header = json.dumps(header_dict) ! header = urlsafe_b64encode(json_header).rstrip('=') segments.append(header) eyJ0eXAiOiJKV1QiLCJhbGciOi JIUzI1NiJ9.eyJ1c2VyX2lkIjo xfQ.xpCS8TTq1a53OIps1ByTdm 6Sh-A1ZoCId3e2YYWjapU
eyJ0eXAiOiJKV1QiLCJhbGciOi JIUzI1NiJ9.eyJ1c2VyX2lkIjo xfQ.xpCS8TTq1a53OIps1ByTdm 6Sh-A1ZoCId3e2YYWjapU
{! "user_id": 1! } eyJ0eXAiOiJKV1QiLCJhbGciOi JIUzI1NiJ9.eyJ1c2VyX2lkIjo xfQ.xpCS8TTq1a53OIps1ByTdm 6Sh-A1ZoCId3e2YYWjapU
payload_dict = { 'user_id': 1 } ! json_payload = json.dumps(payload)
! payload = urlsafe_b64encode(json_payload).rstrip('=') segments.append(payload) eyJ0eXAiOiJKV1QiLCJhbGciOi JIUzI1NiJ9.eyJ1c2VyX2lkIjo xfQ.xpCS8TTq1a53OIps1ByTdm 6Sh-A1ZoCId3e2YYWjapU
eyJ0eXAiOiJKV1QiLCJhbGciOi JIUzI1NiJ9.eyJ1c2VyX2lkIjo xfQ.xpCS8TTq1a53OIps1ByTdm 6Sh-A1ZoCId3e2YYWjapU
SECRET = 'abc123' ! signing_input = '.'.join(segments) ! sig =
hmac.new(SECRET, signing_input, sha256) signature = urlsafe_b64encode(sig.digest()).rstrip('=') segments.append(signature) ! token = '.'.join(segments) eyJ0eXAiOiJKV1QiLCJhbGciOi JIUzI1NiJ9.eyJ1c2VyX2lkIjo xfQ.xpCS8TTq1a53OIps1ByTdm 6Sh-A1ZoCId3e2YYWjapU
eyJ0eXAiOiJKV1QiLCJhbGciOi JIUzI1NiJ9.eyJ1c2VyX2lkIjo xfQ.xpCS8TTq1a53OIps1ByTdm 6Sh-A1ZoCId3e2YYWjapU
PyJWT
$ pip install PyJWT
import jwt ! SECRET_KEY = "abc123" payload = {"user_id": 1}
! jwt_token = jwt.encode(payload, SECRET_KEY) ! payload = jwt.decode(jwt_token, SECRET_KEY)
/progrium/pyjwt
Django JWT Auth
username/password JWT Error /login
Authorization: Bearer <JWT> JWT Error /restricted
$ pip install django-jwt
import json ! from django.views.generic import View from django.http import
HttpResponse ! from jwt_auth.mixins import JSONWebTokenAuthMixin ! ! class RestrictedView(JSONWebTokenAuthMixin, View): def get(self, request): data = json.dumps({ 'foo': 'bar' }) return HttpResponse(data, content_type='application/json')
from django.conf.urls import patterns from .views import RestrictedView urlpatterns =
patterns( '', ! (r'^login/$', 'jwt_auth.views.obtain_jwt_token'), (r'^restricted/$', RestrictedView.as_view()), )
/jpadilla/django-jwt-auth
DRF JWT Auth
$ pip install djangorestframework-jwt
from rest_framework.views import APIView from rest_framework.response import Response from rest_framework.permissions
import IsAuthenticated from rest_framework_jwt.authentication import JSONWebTokenAuthentication class RestrictedView(APIView): permission_classes = (IsAuthenticated, ) authentication_classes = (JSONWebTokenAuthentication, ) def get(self, request): data = { 'foo': 'bar' } ! return Response(data)
from django.conf.urls import patterns from .views import RestrictedView urlpatterns =
patterns( '', ! (r'^login/', 'rest_framework_jwt.views.obtain_jwt_token'), (r'^restricted/$', RestrictedView.as_view()), )
var url = 'http://localhost:8000/login/', creds = { username: 'admin', password:
'abc123' }; $.post(url, creds, function(auth) { $.ajax({ type: 'GET', url: 'http://localhost:8000/restricted/', beforeSend: function(xhr) { xhr.setRequestHeader("Authorization", "Bearer " + auth.token); }, success: function(data){ console.log(data); // { // foo: "bar" // } } }); });
/GetBlimp/django-rest-framework-jwt
Recap • It’s a standard • It’s simple • Third
party libraries • Single Sign-on • Action links • Authentication • CORS • Stateless • No CSRF • CDN • Mobile/WebSockets
Django REST Framework Sprint
Thanks Questions? http:/ /bit.ly/djangocon-jwt