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JSON Web Token library for Python 3.

Project description

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python-jwt

python-jwt is a JSON Web Token (JWT) implementation in Python developed by Gehirn Inc.

Examples

import json
from datetime import datetime, timedelta, timezone

from jwt import (
    JWT,
    jwk_from_dict,
    jwk_from_pem,
)
from jwt.utils import get_int_from_datetime


instance = JWT()

message = {
    'iss': 'https://example.com/',
    'sub': 'yosida95',
    'iat': get_int_from_datetime(datetime.now(timezone.utc)),
    'exp': get_int_from_datetime(
        datetime.now(timezone.utc) + timedelta(hours=1)),
}

"""
Encode the message to JWT(JWS).
"""

# Load a RSA key from a JWK dict.
signing_key = jwk_from_dict({
    'kty': 'RSA',
    'e': 'AQAB',
    'n': '...',
    'd': '...'})
# Or load a RSA key from a PEM file.
with open('rsa_private_key.pem', 'rb') as fh:
    signing_key = jwk_from_pem(fh.read())
# You can also load an octet key in the same manner as the RSA.
# signing_key = jwk_from_dict({'kty': 'oct', 'k': '...'})

compact_jws = instance.encode(message, signing_key, alg='RS256')

"""
Decode the JWT with verifying the signature.
"""

# Load a public key from PEM file corresponding to the signing private key.
with open('rsa_public_key.json', 'r') as fh:
    verifying_key = jwk_from_dict(json.load(fh))

message_received = instance.decode(
    compact_jws, verifying_key, do_time_check=True)

"""
Successfuly retrieved the `message` from the `compact_jws`
"""
assert message == message_received

Installation

You can install python-jwt with pip.

$ pip install jwt

Implementation Details

Supported Algorithms

  • Unsecured
    • none (disabled by default for security)
  • Symmetric
    • HS256
    • HS384
    • HS512
  • Asymmetric
    • RS256
    • RS384
    • RS512

Supported Python Versions

  • Python 3.5
  • Python 3.6
  • Python 3.7

License

python-jwt is licensed under the Apache License version 2. See ./LICENSE.rst.

Project details


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