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
50
Python, Government, and Contracts
jpadilla
0
4.9k
Python Type Hints
jpadilla
0
510
Developer Ergonomics
jpadilla
0
2.1k
BFTW: The Backend
jpadilla
4
200
eventos
jpadilla
0
170
JWT
jpadilla
2
440
Ember.js + Django
jpadilla
3
2.1k
UPRB Basic Workshop
jpadilla
2
210
Other Decks in Programming
See All in Programming
Cursor AI Agentと伴走する アプリケーションの高速リプレイス
daisuketakeda
1
130
git worktree × Claude Code × MCP ~生成AI時代の並列開発フロー~
hisuzuya
1
420
エンジニア向け採用ピッチ資料
inusan
0
160
プロダクト志向ってなんなんだろうね
righttouch
PRO
0
150
すべてのコンテキストを、 ユーザー価値に変える
applism118
2
670
XSLTで作るBrainfuck処理系
makki_d
0
210
Webからモバイルへ Vue.js × Capacitor 活用事例
naokihaba
0
760
Cline指示通りに動かない? AI小説エージェントで学ぶ指示書の書き方と自動アップデートの仕組み
kamomeashizawa
1
570
GraphRAGの仕組みまるわかり
tosuri13
7
480
Blazing Fast UI Development with Compose Hot Reload (droidcon New York 2025)
zsmb
1
190
5つのアンチパターンから学ぶLT設計
narihara
1
110
Systèmes distribués, pour le meilleur et pour le pire - BreizhCamp 2025 - Conférence
slecache
0
100
Featured
See All Featured
Building an army of robots
kneath
306
45k
Dealing with People You Can't Stand - Big Design 2015
cassininazir
367
26k
Writing Fast Ruby
sferik
628
61k
Why Our Code Smells
bkeepers
PRO
337
57k
Helping Users Find Their Own Way: Creating Modern Search Experiences
danielanewman
29
2.7k
Docker and Python
trallard
44
3.4k
Stop Working from a Prison Cell
hatefulcrawdad
270
20k
GraphQLの誤解/rethinking-graphql
sonatard
71
11k
Bootstrapping a Software Product
garrettdimon
PRO
307
110k
実際に使うSQLの書き方 徹底解説 / pgcon21j-tutorial
soudai
PRO
181
53k
jQuery: Nuts, Bolts and Bling
dougneiner
63
7.8k
The Power of CSS Pseudo Elements
geoffreycrofte
77
5.8k
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