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import json
import os
from jwt.utils import base64url_decode
from tests.utils import ensure_bytes, int_from_bytes
BASE_PATH = os.path.dirname(os.path.abspath(__file__))
def decode_value(val):
decoded = base64url_decode(ensure_bytes(val))
return int_from_bytes(decoded, 'big')
def load_hmac_key():
with open(os.path.join(BASE_PATH, 'jwk_hmac.json'), 'r') as infile:
keyobj = json.load(infile)
return base64url_decode(ensure_bytes(keyobj['k']))
try:
from cryptography.hazmat.primitives.asymmetric import rsa
from cryptography.hazmat.primitives.asymmetric import ec
from cryptography.hazmat.backends import default_backend
has_crypto = True
except ImportError:
has_crypto = False
if has_crypto:
def load_rsa_key():
with open(os.path.join(BASE_PATH, 'jwk_rsa_key.json'), 'r') as infile:
keyobj = json.load(infile)
return rsa.RSAPrivateNumbers(
p=decode_value(keyobj['p']),
q=decode_value(keyobj['q']),
d=decode_value(keyobj['d']),
dmp1=decode_value(keyobj['dp']),
dmq1=decode_value(keyobj['dq']),
iqmp=decode_value(keyobj['qi']),
public_numbers=load_rsa_pub_key().public_numbers()
).private_key(default_backend())
def load_rsa_pub_key():
with open(os.path.join(BASE_PATH, 'jwk_rsa_pub.json'), 'r') as infile:
keyobj = json.load(infile)
return rsa.RSAPublicNumbers(
n=decode_value(keyobj['n']),
e=decode_value(keyobj['e'])
).public_key(default_backend())
def load_ec_key():
with open(os.path.join(BASE_PATH, 'jwk_ec_key.json'), 'r') as infile:
keyobj = json.load(infile)
return ec.EllipticCurvePrivateNumbers(
private_value=decode_value(keyobj['d']),
public_numbers=load_ec_pub_key().public_numbers()
)
def load_ec_pub_key():
with open(os.path.join(BASE_PATH, 'jwk_ec_pub.json'), 'r') as infile:
keyobj = json.load(infile)
return ec.EllipticCurvePublicNumbers(
x=decode_value(keyobj['x']),
y=decode_value(keyobj['y']),
curve=ec.SECP521R1()
).public_key(default_backend())
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