def test_tracker_hash_rotates(self):
# Arrange
device = EncryptionDevice("Location")
ballot_hash_1 = ONE_MOD_Q
ballot_hash_2 = TWO_MOD_Q
timestamp_1 = 1000
timestamp_2 = 2000
# Act
device_hash = get_hash_for_device(device.uuid, device.location)
tracker_1_hash = get_rotating_tracker_hash(
device_hash, timestamp_1, ballot_hash_1
)
tracker_2_hash = get_rotating_tracker_hash(
device_hash, timestamp_2, ballot_hash_2
)
# Assert
self.assertIsNotNone(device_hash)
self.assertIsNotNone(tracker_1_hash)
self.assertIsNotNone(tracker_2_hash)
self.assertNotEqual(device_hash, ZERO_MOD_Q)
self.assertNotEqual(tracker_1_hash, device_hash)
self.assertNotEqual(tracker_2_hash, device_hash)
self.assertNotEqual(tracker_1_hash, tracker_2_hash)
def test_tracker_converts_to_words(self):
# Arrange
device = EncryptionDevice("Location")
device_hash = get_hash_for_device(device.uuid, device.location)
ballot_hash = ONE_MOD_Q
ballot_hash_different = TWO_MOD_Q
timestamp = 1000
tracker_hash = get_rotating_tracker_hash(device_hash, timestamp,
ballot_hash)
tracker_hash_different = get_rotating_tracker_hash(
device_hash, timestamp, ballot_hash_different)
# Act
device_words = tracker_hash_to_words(device_hash)
tracker_words = tracker_hash_to_words(tracker_hash)
tracker_different_words = tracker_hash_to_words(tracker_hash_different)
# Assert
self.assertIsNotNone(device_words)
self.assertIsNotNone(tracker_words)
self.assertNotEqual(device_words, tracker_words)
self.assertNotEqual(tracker_different_words, tracker_words)
def test_tracker_converts_to_known_words(self):
expected_hash = (
"325AB2622D35311DB0320C9F3B421EE93017D16B9E4C7FEF06704EDA4FA5E30B")
expected_words = "change-AB262-cart-5311D-ladder-20C9F-cloudburst-21EE9-cellar-7D16B-illegal-C7FEF-alias-04EDA-curriculum-5E30B"
device_hash = ONE_MOD_Q
ballot_hash = TWO_MOD_Q
timestamp = 1000
tracker_hash = get_rotating_tracker_hash(device_hash, timestamp,
ballot_hash)
tracker_words = tracker_hash_to_words(tracker_hash)
self.assertEqual(tracker_hash.to_hex(), expected_hash)
self.assertEqual(tracker_words, expected_words)
def test_tracker_converts_to_known_words(self):
expected_hash = (
"325AB2622D35311DB0320C9F3B421EE93017D16B9E4C7FEF06704EDA4FA5E30B")
expected_words = "cover-AB262-conscience-5311D-peacock-20C9F-diagram-21EE9-coordinator-7D16B-nature-C7FEF-altar-04EDA-fax-5E30B"
device_hash = ONE_MOD_Q
ballot_hash = TWO_MOD_Q
timestamp = 1000
tracker_hash = get_rotating_tracker_hash(device_hash, timestamp,
ballot_hash)
tracker_words = tracker_hash_to_words(tracker_hash)
self.assertEqual(tracker_hash.to_hex(), expected_hash)
self.assertEqual(tracker_words, expected_words)
def test_tracker_converts_to_known_words(self):
expected_hash = (
"325AB2622D35311DB0320C9F3B421EE93017D16B9E4C7FEF06704EDA4FA5E30B"
)
expected_words = "civilian-AB262-championship-5311D-maybe-20C9F-configuration-21EE9-chipmunk-7D16B-lambkin-C7FEF-allergist-04EDA-disclosure-5E30B"
device_hash = ONE_MOD_Q
ballot_hash = TWO_MOD_Q
timestamp = 1000
tracker_hash = get_rotating_tracker_hash(device_hash, timestamp, ballot_hash)
tracker_words = tracker_hash_to_words(tracker_hash)
self.assertEqual(tracker_hash.to_hex(), expected_hash)
self.assertEqual(tracker_words, expected_words)