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test.py
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test.py
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import numpy as np
import time
import unittest
from regev import RegevKey, BatchedRegevCiphertext, PackedRegevCiphertext, RegevPublicParameters
from serialize import serialize_ndarray
from utils import mround
class TestKeyGen(unittest.TestCase):
def test_sk_gen(self):
pp = RegevPublicParameters(23, 2, 69, 88, 2)
for _ in range(100):
RegevKey.gen(pp)
def test_seed_gen(self):
pp = RegevPublicParameters(23, 2, 69, 88, 2)
for i in range(10):
k1 = RegevKey.gen(pp, i.to_bytes(32, "little"))
k2 = RegevKey.gen(pp, i.to_bytes(32, "little"))
assert k1 == k2, "Key Generation is not deterministic"
class TestBatRegev(unittest.TestCase):
def test_enc(self):
mes_mod = 64
num_mes = 100
pp = RegevPublicParameters.for_pack(32, 0, num_mes, mes_mod)
failcounter = 0
trycounter = 0
for bs in range(5):
bs += 1
k = RegevKey.gen(pp)
for i in range(1, 100):
mes = (np.zeros(num_mes, dtype=int) + i) % mes_mod
c = BatchedRegevCiphertext.encrypt_raw(
pp, k, mes, mes_mod=mes_mod)
mes1 = c.decrypt(pp, k)
trycounter += 1
if not (mes == mes1).all():
failcounter += 1
assert failcounter == 0, f"{failcounter} out of {trycounter} ciphertext decrypted wrong"
def test_ser_c(self):
mes_mod = 64
num_mes = 100
pp = RegevPublicParameters.for_pack(256, 0, num_mes, mes_mod)
for bs in range(5):
bs += 1
k = RegevKey.gen(pp)
for i in range(20):
i += 1
mes = np.zeros(num_mes, dtype=int) + i
c1 = BatchedRegevCiphertext.encrypt_raw(pp, k, mes)
c2 = BatchedRegevCiphertext.from_bytes(pp, c1.to_bytes(pp))
assert c1 == c2
class TestPackRegev(unittest.TestCase):
def test_enc(self):
mes_mod = 64
num_mes = 100
pp = RegevPublicParameters.for_pack(32, 0, num_mes, mes_mod)
failcounter = 0
trycounter = 0
for bs in range(5):
bs += 1
k = RegevKey.gen(pp)
for i in range(1, 100):
mes = (np.zeros(num_mes, dtype=int) + i) % mes_mod
c = BatchedRegevCiphertext.encrypt_raw(
pp, k, mes, mes_mod=mes_mod).pack(pp)
mes1 = c.decrypt(pp, k)
trycounter += 1
if not (mes == mes1).all():
failcounter += 1
assert failcounter == 0, f"{failcounter} out of {trycounter} ciphertext decrypted wrong"
def test_ser_c(self):
mes_mod = 64
num_mes = 100
pp = RegevPublicParameters.for_pack(256, 0, num_mes, mes_mod)
for bs in range(5):
bs += 1
k = RegevKey.gen(pp)
for i in range(20):
i += 1
mes = np.zeros(num_mes, dtype=int) + i
c1 = BatchedRegevCiphertext.encrypt_raw(pp, k, mes).pack(pp)
c2 = PackedRegevCiphertext.from_bytes(pp, c1.to_bytes(pp))
assert c1 == c2
if __name__ == '__main__':
unittest.main()