def test_generate_election_partial_key_backups(self):
# Arrange
guardian = Guardian(
SENDER_GUARDIAN_ID, SENDER_SEQUENCE_ORDER, NUMBER_OF_GUARDIANS, QUORUM
)
other_guardian = Guardian(
RECIPIENT_GUARDIAN_ID, RECIPIENT_SEQUENCE_ORDER, NUMBER_OF_GUARDIANS, QUORUM
)
# Act
empty_key_backup = guardian.share_election_partial_key_backup(
RECIPIENT_GUARDIAN_ID
)
# Assert
self.assertIsNone(empty_key_backup)
# Act
guardian.save_auxiliary_public_key(other_guardian.share_auxiliary_public_key())
guardian.generate_election_partial_key_backups(identity_auxiliary_encrypt)
key_backup = guardian.share_election_partial_key_backup(RECIPIENT_GUARDIAN_ID)
# Assert
self.assertIsNotNone(key_backup)
self.assertIsNotNone(key_backup.encrypted_value)
self.assertEqual(key_backup.owner_id, SENDER_GUARDIAN_ID)
self.assertEqual(key_backup.designated_id, RECIPIENT_GUARDIAN_ID)
self.assertEqual(len(key_backup.coefficient_commitments), QUORUM)
self.assertEqual(len(key_backup.coefficient_proofs), QUORUM)
for proof in key_backup.coefficient_proofs:
proof.is_valid()
def test_all_election_partial_key_backups_verified(self):
# Arrange
# Round 1
guardian = Guardian(
SENDER_GUARDIAN_ID, SENDER_SEQUENCE_ORDER, NUMBER_OF_GUARDIANS, QUORUM
)
other_guardian = Guardian(
RECIPIENT_GUARDIAN_ID, RECIPIENT_SEQUENCE_ORDER, NUMBER_OF_GUARDIANS, QUORUM
)
guardian.save_guardian_public_keys(other_guardian.share_public_keys())
other_guardian.save_guardian_public_keys(guardian.share_public_keys())
# Round 2
guardian.generate_election_partial_key_backups(identity_auxiliary_encrypt)
key_backup = guardian.share_election_partial_key_backup(RECIPIENT_GUARDIAN_ID)
other_guardian.save_election_partial_key_backup(key_backup)
verification = other_guardian.verify_election_partial_key_backup(
SENDER_GUARDIAN_ID, identity_auxiliary_decrypt
)
guardian.save_election_partial_key_verification(verification)
# Act
all_saved = guardian.all_election_partial_key_backups_verified()
# Assert
self.assertTrue(all_saved)
def test_verify_election_partial_key_backup(self):
# Arrange
# Round 1
guardian = Guardian(
SENDER_GUARDIAN_ID, SENDER_SEQUENCE_ORDER, NUMBER_OF_GUARDIANS, QUORUM
)
other_guardian = Guardian(
RECIPIENT_GUARDIAN_ID, RECIPIENT_SEQUENCE_ORDER, NUMBER_OF_GUARDIANS, QUORUM
)
guardian.save_guardian_public_keys(other_guardian.share_public_keys())
other_guardian.save_guardian_public_keys(guardian.share_public_keys())
# Round 2
guardian.generate_election_partial_key_backups(identity_auxiliary_encrypt)
key_backup = guardian.share_election_partial_key_backup(RECIPIENT_GUARDIAN_ID)
other_guardian.save_election_partial_key_backup(key_backup)
# Act
verification = other_guardian.verify_election_partial_key_backup(
SENDER_GUARDIAN_ID, identity_auxiliary_decrypt
)
# Assert
self.assertIsNotNone(verification)
self.assertEqual(verification.owner_id, SENDER_GUARDIAN_ID)
self.assertEqual(verification.designated_id, RECIPIENT_GUARDIAN_ID)
self.assertEqual(verification.verifier_id, RECIPIENT_GUARDIAN_ID)
self.assertTrue(verification.verified)
def test_all_election_partial_key_backups_received(self):
# Arrange
guardian = Guardian(
SENDER_GUARDIAN_ID, SENDER_SEQUENCE_ORDER, NUMBER_OF_GUARDIANS, QUORUM
)
other_guardian = Guardian(
RECIPIENT_GUARDIAN_ID, RECIPIENT_SEQUENCE_ORDER, NUMBER_OF_GUARDIANS, QUORUM
)
guardian.save_auxiliary_public_key(other_guardian.share_auxiliary_public_key())
guardian.generate_election_partial_key_backups(identity_auxiliary_encrypt)
key_backup = guardian.share_election_partial_key_backup(RECIPIENT_GUARDIAN_ID)
# Assert
self.assertFalse(other_guardian.all_election_partial_key_backups_received())
other_guardian.save_election_partial_key_backup(key_backup)
self.assertTrue(other_guardian.all_election_partial_key_backups_received())
def test_share_election_partial_key_backup(self):
# Arrange
guardian = Guardian(
SENDER_GUARDIAN_ID, SENDER_SEQUENCE_ORDER, NUMBER_OF_GUARDIANS, QUORUM
)
other_guardian = Guardian(
RECIPIENT_GUARDIAN_ID, RECIPIENT_SEQUENCE_ORDER, NUMBER_OF_GUARDIANS, QUORUM
)
# Act
guardian.save_auxiliary_public_key(other_guardian.share_auxiliary_public_key())
guardian.generate_election_partial_key_backups(identity_auxiliary_encrypt)
key_backup = guardian.share_election_partial_key_backup(RECIPIENT_GUARDIAN_ID)
# Assert
self.assertIsNotNone(key_backup)
self.assertIsNotNone(key_backup.encrypted_value)
self.assertEqual(key_backup.owner_id, SENDER_GUARDIAN_ID)
self.assertEqual(key_backup.designated_id, RECIPIENT_GUARDIAN_ID)
def test_save_election_partial_key_verification(self):
# Arrange
guardian = Guardian(SENDER_GUARDIAN_ID, SENDER_SEQUENCE_ORDER,
NUMBER_OF_GUARDIANS, QUORUM)
other_guardian = Guardian(RECIPIENT_GUARDIAN_ID,
RECIPIENT_SEQUENCE_ORDER,
NUMBER_OF_GUARDIANS, QUORUM)
guardian.save_auxiliary_public_key(
other_guardian.share_auxiliary_public_key())
guardian.generate_election_partial_key_backups()
key_backup = guardian.share_election_partial_key_backup(
RECIPIENT_GUARDIAN_ID)
other_guardian.save_election_partial_key_backup(key_backup)
verification = other_guardian.verify_election_partial_key_backup(
SENDER_GUARDIAN_ID)
# Act
guardian.save_election_partial_key_verification(verification)
# Assert
self.assertTrue(guardian.all_election_partial_key_backups_verified)
def test_publish_joint_key(self):
# Arrange
# Round 1
guardian = Guardian(
SENDER_GUARDIAN_ID, SENDER_SEQUENCE_ORDER, NUMBER_OF_GUARDIANS, QUORUM
)
other_guardian = Guardian(
RECIPIENT_GUARDIAN_ID, RECIPIENT_SEQUENCE_ORDER, NUMBER_OF_GUARDIANS, QUORUM
)
guardian.save_guardian_public_keys(other_guardian.share_public_keys())
other_guardian.save_guardian_public_keys(guardian.share_public_keys())
# Round 2
guardian.generate_election_partial_key_backups(identity_auxiliary_encrypt)
key_backup = guardian.share_election_partial_key_backup(RECIPIENT_GUARDIAN_ID)
other_guardian.save_election_partial_key_backup(key_backup)
verification = other_guardian.verify_election_partial_key_backup(
SENDER_GUARDIAN_ID, identity_auxiliary_decrypt
)
# Act
joint_key = guardian.publish_joint_key()
# Assert
self.assertIsNone(joint_key)
# Act
guardian.save_election_public_key(other_guardian.share_election_public_key())
joint_key = guardian.publish_joint_key()
# Assert
self.assertIsNone(joint_key)
# Act
guardian.save_election_partial_key_verification(verification)
joint_key = guardian.publish_joint_key()
# Assert
self.assertIsNotNone(joint_key)
self.assertNotEqual(joint_key, guardian.share_election_public_key().key)