def setUp(self):
self.key = jwk_from_dict(json.loads(load_testdata('oct.json', 'r')))
self.signature = b64decode(
'dBjftJeZ4CVP-mB92K27uhbUJU1p1r_wW1gFWFOEjXk')
self.message = (
b'eyJ0eXAiOiJKV1QiLA0KICJhbGciOiJIUzI1NiJ9'
b'.'
b'eyJpc3MiOiJqb2UiLA0KICJleHAiOjEzMDA4MTkzODAsDQogImh0dHA6Ly9leGFt'
b'cGxlLmNvbS9pc19yb290Ijp0cnVlfQ')
def jwt2john(jwt):
"""
Convert signature from base64 to hex, and separate it from the data by a #
so that John can parse it.
"""
jwt_bytes = jwt.encode('ascii')
parts = jwt_bytes.split(b'.')
data = parts[0] + b'.' + parts[1]
signature = hexlify(b64decode(str(parts[2])))
return (data + b'#' + signature).decode('ascii')
def setUp(self):
self.key = jwk_from_dict(json.loads(load_testdata('oct.json', 'r')))
self.signature = b64decode(
'dBjftJeZ4CVP-mB92K27uhbUJU1p1r_wW1gFWFOEjXk'
)
self.message = (
b'eyJ0eXAiOiJKV1QiLA0KICJhbGciOiJIUzI1NiJ9'
b'.'
b'eyJpc3MiOiJqb2UiLA0KICJleHAiOjEzMDA4MTkzODAsDQogImh0dHA6Ly9leGFt'
b'cGxlLmNvbS9pc19yb290Ijp0cnVlfQ'
)
def jwk_to_rsa(key):
"""Convert a deserialized JWK into an RSA Public Key instance."""
e = int(codecs.encode(b64decode(key['e'].encode('ascii')), 'hex'), 16)
n = int(codecs.encode(b64decode(key['n'].encode('ascii')), 'hex'), 16)
return rsa.RSAPublicNumbers(e, n).public_key(default_backend())
def test_b64decode():
ret = ('eyJpc3MiOiJqb2UiLA0KICJleHAiOjEzMDA4MTkzODAsDQog'
'Imh0dHA6Ly9leGFtcGxlLmNvbS9pc19yb290Ijp0cnVlfQ')
expected = (b'{"iss":"joe",\r\n "exp":1300819380,\r\n '
b'"http://example.com/is_root":true}')
assert b64decode(ret) == expected
def test_b64decode():
ret = ('eyJpc3MiOiJqb2UiLA0KICJleHAiOjEzMDA4MTkzODAsDQog'
'Imh0dHA6Ly9leGFtcGxlLmNvbS9pc19yb290Ijp0cnVlfQ')
expected = (b'{"iss":"joe",\r\n "exp":1300819380,\r\n '
b'"http://example.com/is_root":true}')
assert b64decode(ret) == expected