def test_modified_paillier_can_decrypt_encrypted_min_val(self, runtime):
paillier = ModifiedPaillier(runtime, Random(554424))
n = runtime.players[runtime.id].pubkey['n']
val = -(n - 1) / 2
encrypted_val = paillier.encrypt(val)
decrypted_val = paillier.decrypt(encrypted_val)
self.assertEquals(val, decrypted_val)
def test_modified_paillier_can_decrypt_encrypted_min_val(self, runtime):
paillier = ModifiedPaillier(runtime, Random(554424))
n = runtime.players[runtime.id].pubkey['n']
val = -(n - 1) / 2
encrypted_val = paillier.encrypt(val)
decrypted_val = paillier.decrypt(encrypted_val)
self.assertEquals(val, decrypted_val)
def test_modified_paillier_with_different_randomness_are_not_equal(self, runtime):
random = Random(3423434)
n = runtime.players[runtime.id].pubkey['n']
paillier = ModifiedPaillier(runtime, Random(random.getrandbits(128)))
val = 47
random_elm = random.randint(1, long(n))
encrypted_val_1 = paillier.encrypt(val, random_elm=random_elm)
encrypted_val_2 = paillier.encrypt(val, random_elm=random_elm)
self.assertEquals(encrypted_val_1, encrypted_val_2)
def test_modified_paillier_with_same_randomness_are_equal(self, runtime):
random = Random(234333)
paillier = ModifiedPaillier(runtime, Random(random.getrandbits(128)))
n = runtime.players[runtime.id].pubkey['n']
val = 46
random_elm_1 = random.randint(1, long(n))
random_elm_2 = (random_elm_1 + 1) % n
encrypted_val_1 = paillier.encrypt(val, random_elm=random_elm_1)
encrypted_val_2 = paillier.encrypt(val, random_elm=random_elm_1)
self.assertEquals(encrypted_val_1, encrypted_val_2)
def test_modified_paillier_with_different_randomness_are_not_equal(
self, runtime):
random = Random(3423434)
n = runtime.players[runtime.id].pubkey['n']
paillier = ModifiedPaillier(runtime, Random(random.getrandbits(128)))
val = 47
random_elm = random.randint(1, long(n))
encrypted_val_1 = paillier.encrypt(val, random_elm=random_elm)
encrypted_val_2 = paillier.encrypt(val, random_elm=random_elm)
self.assertEquals(encrypted_val_1, encrypted_val_2)
def test_modified_paillier_with_same_randomness_are_equal(self, runtime):
random = Random(234333)
paillier = ModifiedPaillier(runtime, Random(random.getrandbits(128)))
n = runtime.players[runtime.id].pubkey['n']
val = 46
random_elm_1 = random.randint(1, long(n))
random_elm_2 = (random_elm_1 + 1) % n
encrypted_val_1 = paillier.encrypt(val, random_elm=random_elm_1)
encrypted_val_2 = paillier.encrypt(val, random_elm=random_elm_1)
self.assertEquals(encrypted_val_1, encrypted_val_2)
def test_modified_paillier_can_encrypt_to_other(self, runtime):
paillier = ModifiedPaillier(runtime, Random(57503))
msg = []
for p in runtime.players:
msg.append(paillier.encrypt(runtime.id, player_id=p))
received = _send(runtime, msg)
def verify(enc):
plain = [paillier.decrypt(e) for e in enc]
self.assertEquals(range(1, self.num_players + 1), plain)
runtime.schedule_callback(received, verify)
return received
def test_modified_paillier_can_encrypt_to_other(self, runtime):
paillier = ModifiedPaillier(runtime, Random(57503))
msg = []
for p in runtime.players:
msg.append(paillier.encrypt(runtime.id, player_id=p))
received = _send(runtime, msg)
def verify(enc):
plain = [paillier.decrypt(e) for e in enc]
self.assertEquals(range(1, self.num_players + 1), plain)
runtime.schedule_callback(received, verify)
return received
def test_modified_paillier_can_decrypt_encrypted_one(self, runtime):
paillier = ModifiedPaillier(runtime, Random(234838))
val = 1
encrypted_val = paillier.encrypt(val)
decrypted_val = paillier.decrypt(encrypted_val)
self.assertEquals(val, decrypted_val)
def test_modified_paillier_can_decrypt_encrypted_positive(self, runtime):
paillier = ModifiedPaillier(runtime, Random(777737))
val = 73423
encrypted_val = paillier.encrypt(val)
decrypted_val = paillier.decrypt(encrypted_val)
self.assertEquals(val, decrypted_val)
def test_modified_paillier_can_decrypt_encrypted_zero(self, runtime):
paillier = ModifiedPaillier(runtime, Random(338301))
val = 0
encrypted_val = paillier.encrypt(val)
decrypted_val = paillier.decrypt(encrypted_val)
self.assertEquals(val, decrypted_val)
def test_modified_paillier_can_decrypt_encrypted_one(self, runtime):
paillier = ModifiedPaillier(runtime, Random(234838))
val = 1
encrypted_val = paillier.encrypt(val)
decrypted_val = paillier.decrypt(encrypted_val)
self.assertEquals(val, decrypted_val)
def test_modified_paillier_can_decrypt_encrypted_positive(self, runtime):
paillier = ModifiedPaillier(runtime, Random(777737))
val = 73423
encrypted_val = paillier.encrypt(val)
decrypted_val = paillier.decrypt(encrypted_val)
self.assertEquals(val, decrypted_val)
def test_modified_paillier_can_decrypt_encrypted_zero(self, runtime):
paillier = ModifiedPaillier(runtime, Random(338301))
val = 0
encrypted_val = paillier.encrypt(val)
decrypted_val = paillier.decrypt(encrypted_val)
self.assertEquals(val, decrypted_val)
