def test_03_retry(self):
with PKCS11Mock() as pkcs11:
hsm = AESHardwareSecurityModule({
"module": "testmodule",
})
hsm.setup_module({"password": "******"})
self.assertTrue(hsm.is_ready)
self.assertIs(hsm.session, pkcs11.session_mock)
# session is opened once
self.assertEqual(pkcs11.mock.openSession.mock_calls,
[call(slot=1)])
# simulate that encryption succeeds after five tries
password = "******" * 16
with pkcs11.simulate_failure(pkcs11.session_mock.encrypt, 5):
encrypted = hsm.encrypt_password(password)
# the session has been opened initially, and five times after that
self.assertEqual(pkcs11.mock.openSession.mock_calls,
[call(slot=1)] * 6)
# simulate that decryption succeeds after five tries
with pkcs11.simulate_failure(pkcs11.session_mock.decrypt, 5):
self.assertEqual(hsm.decrypt_password(encrypted), password)
# the session has been opened initially, five times during encryption, and five times now
self.assertEqual(pkcs11.mock.openSession.mock_calls,
[call(slot=1)] * 11)
# simulate that random generation succeeds after five tries
with pkcs11.simulate_failure(pkcs11.session_mock.generateRandom,
5):
self.assertEqual(hsm.random(4), b"\x00\x01\x02\x03")
self.assertEqual(pkcs11.mock.openSession.mock_calls,
[call(slot=1)] * 16)
def test_02_basic(self):
with PKCS11Mock() as pkcs11:
hsm = AESHardwareSecurityModule({
"module": "testmodule",
})
self.assertFalse(hsm.is_ready)
self.assertEqual(pkcs11.mock.openSession.call_count, 0)
hsm.setup_module({"password": "******"})
self.assertTrue(hsm.is_ready)
self.assertEqual(pkcs11.mock.openSession.call_count, 1)
self.assertIs(hsm.session, pkcs11.session_mock)
# mock just returns \x00\x01... for random values
self.assertEqual(hsm.random(4), b"\x00\x01\x02\x03")
pkcs11.session_mock.generateRandom.assert_called_once_with(4)
password = "******" * 16
crypted = hsm.encrypt_password(password)
# to generate the IV
pkcs11.session_mock.generateRandom.assert_called_with(16)
text = hsm.decrypt_password(crypted)
self.assertEqual(text, password)
self.assertEqual(pkcs11.session_mock.encrypt.call_count, 1)
self.assertEqual(pkcs11.session_mock.encrypt.call_count, 1)
# during the whole usage, we have only used one session
self.assertEqual(pkcs11.mock.openSession.call_count, 1)
def test_03_retry(self):
with PKCS11Mock() as pkcs11:
hsm = AESHardwareSecurityModule({
"module": "testmodule",
})
hsm.setup_module({
"password": "******"
})
self.assertTrue(hsm.is_ready)
self.assertIs(hsm.session, pkcs11.session_mock)
# session is opened once
self.assertEqual(pkcs11.mock.openSession.mock_calls, [
call(slot=1)
])
# simulate that encryption succeeds after five tries
password = "******" * 16
with pkcs11.simulate_failure(pkcs11.session_mock.encrypt, 5):
encrypted = hsm.encrypt_password(password)
# the session has been opened initially, and five times after that
self.assertEqual(pkcs11.mock.openSession.mock_calls, [call(slot=1)] * 6)
# simulate that decryption succeeds after five tries
with pkcs11.simulate_failure(pkcs11.session_mock.decrypt, 5):
self.assertEqual(hsm.decrypt_password(encrypted), password)
# the session has been opened initially, five times during encryption, and five times now
self.assertEqual(pkcs11.mock.openSession.mock_calls, [call(slot=1)] * 11)
# simulate that random generation succeeds after five tries
with pkcs11.simulate_failure(pkcs11.session_mock.generateRandom, 5):
self.assertEqual(hsm.random(4), b"\x00\x01\x02\x03")
self.assertEqual(pkcs11.mock.openSession.mock_calls, [call(slot=1)] * 16)
def test_02_basic(self):
with PKCS11Mock() as pkcs11:
hsm = AESHardwareSecurityModule({
"module": "testmodule",
})
self.assertFalse(hsm.is_ready)
self.assertEqual(pkcs11.mock.openSession.call_count, 0)
hsm.setup_module({
"password": "******"
})
self.assertTrue(hsm.is_ready)
self.assertEqual(pkcs11.mock.openSession.call_count, 1)
self.assertIs(hsm.session, pkcs11.session_mock)
# mock just returns \x00\x01... for random values
self.assertEqual(hsm.random(4), b"\x00\x01\x02\x03")
pkcs11.session_mock.generateRandom.assert_called_once_with(4)
password = "******" * 16
crypted = hsm.encrypt_password(password)
# to generate the IV
pkcs11.session_mock.generateRandom.assert_called_with(16)
text = hsm.decrypt_password(crypted)
self.assertEqual(text, password)
self.assertEqual(pkcs11.session_mock.encrypt.call_count, 1)
self.assertEqual(pkcs11.session_mock.encrypt.call_count, 1)
# during the whole usage, we have only used one session
self.assertEqual(pkcs11.mock.openSession.call_count, 1)
def test_04_fail_encrypt(self):
with PKCS11Mock() as pkcs11:
hsm = AESHardwareSecurityModule({
"module": "testmodule",
})
hsm.setup_module({"password": "******"})
self.assertTrue(hsm.is_ready)
self.assertIs(hsm.session, pkcs11.session_mock)
# session is opened once
self.assertEqual(pkcs11.mock.openSession.mock_calls,
[call(slot=1)])
# simulate that encryption still fails after five tries
password = "******" * 16
with pkcs11.simulate_failure(pkcs11.session_mock.encrypt, 6):
with self.assertRaises(HSMException):
hsm.encrypt_password(password)
# the session has been opened initially, and six times after that
self.assertEqual(pkcs11.mock.openSession.mock_calls,
[call(slot=1)] * 7)
def test_05_hsm_recovery(self):
with PKCS11Mock() as pkcs11:
hsm = AESHardwareSecurityModule({
"module": "testmodule",
})
hsm.setup_module({"password": "******"})
self.assertTrue(hsm.is_ready)
self.assertIs(hsm.session, pkcs11.session_mock)
self.assertEqual(pkcs11.mock.openSession.mock_calls,
[call(slot=1)])
# encryption+decryption succeeds once
password = "******" * 16
crypted = hsm.encrypt_password(password)
text = hsm.decrypt_password(crypted)
self.assertEqual(text, password)
# simulate that the HSM disappears after that, so we cannot
# even open a session
with pkcs11.simulate_failure(pkcs11.session_mock.generateRandom, 1), \
pkcs11.simulate_failure(pkcs11.mock.openSession, 1):
with self.assertRaises(PyKCS11Error):
hsm.encrypt_password(password)
self.assertEqual(pkcs11.mock.openSession.mock_calls,
[call(slot=1)] * 2)
# the Security Module is in a defunct state now
# but we can recover from it!
# simulate one failure, because this will make the security module
# acquire a new session
with pkcs11.simulate_failure(pkcs11.session_mock.generateRandom,
1):
crypted = hsm.encrypt_password(password)
text = hsm.decrypt_password(crypted)
self.assertEqual(text, password)
self.assertEqual(pkcs11.mock.openSession.mock_calls,
[call(slot=1)] * 3)
def test_05_hsm_recovery(self):
with PKCS11Mock() as pkcs11:
hsm = AESHardwareSecurityModule({
"module": "testmodule",
})
hsm.setup_module({
"password": "******"
})
self.assertTrue(hsm.is_ready)
self.assertIs(hsm.session, pkcs11.session_mock)
self.assertEqual(pkcs11.mock.openSession.mock_calls, [
call(slot=1)
])
# encryption+decryption succeeds once
password = "******" * 16
crypted = hsm.encrypt_password(password)
text = hsm.decrypt_password(crypted)
self.assertEqual(text, password)
# simulate that the HSM disappears after that, so we cannot
# even open a session
with pkcs11.simulate_failure(pkcs11.session_mock.generateRandom, 1), \
pkcs11.simulate_failure(pkcs11.mock.openSession, 1):
with self.assertRaises(PyKCS11Error):
hsm.encrypt_password(password)
self.assertEqual(pkcs11.mock.openSession.mock_calls, [call(slot=1)] * 2)
# the Security Module is in a defunct state now
# but we can recover from it!
# simulate one failure, because this will make the security module
# acquire a new session
with pkcs11.simulate_failure(pkcs11.session_mock.generateRandom, 1):
crypted = hsm.encrypt_password(password)
text = hsm.decrypt_password(crypted)
self.assertEqual(text, password)
self.assertEqual(pkcs11.mock.openSession.mock_calls, [call(slot=1)] * 3)
def test_04_fail_encrypt(self):
with PKCS11Mock() as pkcs11:
hsm = AESHardwareSecurityModule({
"module": "testmodule",
})
hsm.setup_module({
"password": "******"
})
self.assertTrue(hsm.is_ready)
self.assertIs(hsm.session, pkcs11.session_mock)
# session is opened once
self.assertEqual(pkcs11.mock.openSession.mock_calls, [
call(slot=1)
])
# simulate that encryption still fails after five tries
password = "******" * 16
with pkcs11.simulate_failure(pkcs11.session_mock.encrypt, 6):
with self.assertRaises(HSMException):
hsm.encrypt_password(password)
# the session has been opened initially, and six times after that
self.assertEqual(pkcs11.mock.openSession.mock_calls, [call(slot=1)] * 7)