def test_not_supported_alg(self):
jws = JsonWebSignature(algorithms=['HS256'])
s = jws.serialize({'alg': 'HS256'}, 'hello', 'secret')
jws = JsonWebSignature(algorithms=['RS256'])
self.assertRaises(
errors.UnsupportedAlgorithmError,
lambda: jws.serialize({'alg': 'HS256'}, 'hello', 'secret'))
self.assertRaises(errors.UnsupportedAlgorithmError, jws.deserialize, s,
'secret')
def test_validate_header(self):
jws = JsonWebSignature(private_headers=[])
protected = {'alg': 'HS256', 'invalid': 'k'}
header = {'protected': protected, 'header': {'kid': 'a'}}
self.assertRaises(errors.InvalidHeaderParameterNameError,
jws.serialize, header, b'hello', 'secret')
jws = JsonWebSignature(private_headers=['invalid'])
s = jws.serialize(header, b'hello', 'secret')
self.assertIsInstance(s, dict)
jws = JsonWebSignature()
s = jws.serialize(header, b'hello', 'secret')
self.assertIsInstance(s, dict)
def test_function_key(self):
protected = {'alg': 'HS256'}
header = [
{
'protected': protected,
'header': {
'kid': 'a'
}
},
{
'protected': protected,
'header': {
'kid': 'b'
}
},
]
def load_key(header, payload):
self.assertEqual(payload, b'hello')
kid = header.get('kid')
if kid == 'a':
return 'secret-a'
return 'secret-b'
jws = JsonWebSignature(algorithms=JWS_ALGORITHMS)
s = jws.serialize(header, b'hello', load_key)
self.assertIsInstance(s, dict)
self.assertIn('signatures', s)
data = jws.deserialize(json.dumps(s), load_key)
header, payload = data['header'], data['payload']
self.assertEqual(payload, b'hello')
self.assertEqual(header[0]['alg'], 'HS256')
self.assertNotIn('signature', data)
def test_compact_jws(self):
jws = JsonWebSignature(algorithms=JWS_ALGORITHMS)
s = jws.serialize({'alg': 'HS256'}, 'hello', 'secret')
data = jws.deserialize(s, 'secret')
header, payload = data['header'], data['payload']
self.assertEqual(payload, b'hello')
self.assertEqual(header['alg'], 'HS256')
self.assertNotIn('signature', data)
def test_EdDSA_alg(self):
jws = JsonWebSignature(algorithms=RFC8037_ALGORITHMS)
private_key = read_file_path('ed25519-pkcs8.pem')
public_key = read_file_path('ed25519-pub.pem')
s = jws.serialize({'alg': 'EdDSA'}, 'hello', private_key)
data = jws.deserialize(s, public_key)
header, payload = data['header'], data['payload']
self.assertEqual(payload, b'hello')
self.assertEqual(header['alg'], 'EdDSA')
def test_ES256K_alg(self):
jws = JsonWebSignature(algorithms=['ES256K'])
private_key = read_file_path('secp256k1-private.pem')
public_key = read_file_path('secp256k1-pub.pem')
s = jws.serialize({'alg': 'ES256K'}, 'hello', private_key)
data = jws.deserialize(s, public_key)
header, payload = data['header'], data['payload']
self.assertEqual(payload, b'hello')
self.assertEqual(header['alg'], 'ES256K')
def test_ES512_alg(self):
jws = JsonWebSignature()
private_key = read_file_path('secp521r1-private.json')
public_key = read_file_path('secp521r1-public.json')
self.assertRaises(ValueError, jws.serialize, {'alg': 'ES256'}, 'hello', private_key)
s = jws.serialize({'alg': 'ES512'}, 'hello', private_key)
data = jws.deserialize(s, public_key)
header, payload = data['header'], data['payload']
self.assertEqual(payload, b'hello')
self.assertEqual(header['alg'], 'ES512')
def test_compact_rsa_pss(self):
jws = JsonWebSignature(algorithms=JWS_ALGORITHMS)
private_key = read_file_path('rsa_private.pem')
public_key = read_file_path('rsa_public.pem')
s = jws.serialize({'alg': 'PS256'}, 'hello', private_key)
data = jws.deserialize(s, public_key)
header, payload = data['header'], data['payload']
self.assertEqual(payload, b'hello')
self.assertEqual(header['alg'], 'PS256')
ssh_pub_key = read_file_path('ssh_public.pem')
self.assertRaises(errors.BadSignatureError, jws.deserialize, s, ssh_pub_key)
def test_flattened_json_jws(self):
jws = JsonWebSignature(algorithms=JWS_ALGORITHMS)
protected = {'alg': 'HS256'}
header = {'protected': protected, 'header': {'kid': 'a'}}
s = jws.serialize(header, 'hello', 'secret')
self.assertIsInstance(s, dict)
data = jws.deserialize(s, 'secret')
header, payload = data['header'], data['payload']
self.assertEqual(payload, b'hello')
self.assertEqual(header['alg'], 'HS256')
self.assertNotIn('protected', data)
def test_nested_json_jws(self):
jws = JsonWebSignature(algorithms=JWS_ALGORITHMS)
protected = {'alg': 'HS256'}
header = {'protected': protected, 'header': {'kid': 'a'}}
s = jws.serialize([header], 'hello', 'secret')
self.assertIsInstance(s, dict)
self.assertIn('signatures', s)
data = jws.deserialize(s, 'secret')
header, payload = data['header'], data['payload']
self.assertEqual(payload, b'hello')
self.assertEqual(header[0]['alg'], 'HS256')
self.assertNotIn('signatures', data)
# test bad signature
self.assertRaises(errors.BadSignatureError, jws.deserialize, s, 'f')
def test_compact_rsa(self):
jws = JsonWebSignature()
private_key = read_file_path('rsa_private.pem')
public_key = read_file_path('rsa_public.pem')
s = jws.serialize({'alg': 'RS256'}, 'hello', private_key)
data = jws.deserialize(s, public_key)
header, payload = data['header'], data['payload']
self.assertEqual(payload, b'hello')
self.assertEqual(header['alg'], 'RS256')
# can deserialize with private key
data2 = jws.deserialize(s, private_key)
self.assertEqual(data, data2)
ssh_pub_key = read_file_path('ssh_public.pem')
self.assertRaises(errors.BadSignatureError, jws.deserialize, s, ssh_pub_key)
def test_compact_none(self):
jws = JsonWebSignature(algorithms=JWS_ALGORITHMS)
s = jws.serialize({'alg': 'none'}, 'hello', '')
self.assertRaises(errors.BadSignatureError, jws.deserialize, s, '')