blob: cbf12e1c4fd29a614a44c76824658ef87d24c89c [file] [log] [blame]
#!/usr/bin/env python3
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import os
import sys
import json
import unittest
sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), '..')))
from amcl import mpc
class TestS(unittest.TestCase):
"""Tests MPC S"""
def setUp(self):
with open("mpc/S.json", "r") as f: = json.load(f)
for vector in
for key, val in vector.items():
if key != "TEST":
vector[key] = bytes.fromhex(val)
def test_1(self):
"""test_1 Test Vector test"""
for vector in
print(f"Test vector {vector['TEST']}")
PUB1, PRIV1 = mpc.paillier_key_pair(None, vector['P1'], vector['Q1'])
PUB2, PRIV2 = mpc.paillier_key_pair(None, vector['P2'], vector['Q2'])
# ALPHA1 + BETA2 = K1 * W2
ca11 = mpc.mpc_mta_client1(None, PUB1, vector['K1'], vector['R11'])
cb12, beta2 = mpc.mpc_mta_server(None, PUB1, vector['W2'], ca11, vector['Z12'], vector['R12'])
alpha1 = mpc.mpc_mta_client2(PRIV1, cb12)
self.assertEqual(vector['ALPHA1'], alpha1)
self.assertEqual(vector['BETA2'], beta2)
# ALPHA2 + BETA1 = K2 * W1
ca22 = mpc.mpc_mta_client1(None, PUB2, vector['K2'], vector['R22'])
cb21, beta1 = mpc.mpc_mta_server(None, PUB2, vector['W1'], ca22, vector['Z21'], vector['R21'])
alpha2 = mpc.mpc_mta_client2(PRIV2, cb21)
self.assertEqual(vector['ALPHA2'], alpha2)
self.assertEqual(vector['BETA1'], beta1)
# sum1 = K1.W1 + alpha1 + beta1
SUM1 = mpc.mpc_sum_mta(vector['K1'], vector['W1'], alpha1, beta1)
self.assertEqual(vector['SUM1'], SUM1)
# sum2 = K2.W2 + alpha2 + beta2
SUM2 = mpc.mpc_sum_mta(vector['K2'], vector['W2'], alpha2, beta2)
self.assertEqual(vector['SUM2'], SUM2)
# Calculate the message hash
HM = mpc.mpc_hash(vector['M'])
# Calculate the S1 signature component
rc, SIG_S1 = mpc.mpc_s(HM, vector['SIG_R'], vector['K1'], SUM1)
self.assertEqual(vector['SIG_S1'], SIG_S1)
self.assertEqual(rc, 0)
# Calculate the S2 signature component
rc, SIG_S2 = mpc.mpc_s(HM, vector['SIG_R'], vector['K2'], SUM2)
self.assertEqual(vector['SIG_S2'], SIG_S2)
self.assertEqual(rc, 0)
# Sum S signature component
SIG_S = mpc.mpc_sum_s(SIG_S1, SIG_S2)
self.assertEqual(vector['SIG_S'], SIG_S)
self.assertEqual(rc, 0)
if __name__ == '__main__':
# Run tests