blob: a317a79ed50e3038b2ad54715af48035d971bd7f [file] [log] [blame]
#!/usr/bin/env python3
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to you under the Apache License, Version 2.0 (the
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import os
import sys
import json
from unittest import TestCase
sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), '..')))
from amcl import commitments, core_utils
# Load and preprocess test vectors
with open("commitments/nm_commit.json", "r") as f:
vectors = json.load(f)
for vector in vectors:
for key, val in vector.items():
if key != "TEST":
vector[key] = bytes.fromhex(val)
class TestNMCommit(TestCase):
""" Test NM Commitment Commit """
def setUp(self):
# Deterministic PRNG for testing purposes
seed_hex = "78d0fb6705ce77dee47d03eb5b9c5d30"
seed = bytes.fromhex(seed_hex)
self.rng = core_utils.create_csprng(seed)
self.msg = b'BANANA'
r_hex = "296f910bde4530efe3533ed3b74475d6022364db2e57773207734b6daf547ac8"
c_hex = "b60ebd5193252d22c771a7702724e9922662aae5f634494225cdd3a9e22f9826"
self.r_golden = bytes.fromhex(r_hex)
self.c_golden = bytes.fromhex(c_hex)
def test_tv(self):
""" Test using test vectors """
for vector in vectors:
r, c = commitments.nm_commit(None, vector['X'], vector['R'])
self.assertEqual(vector['R'], r)
self.assertEqual(vector['C'], c)
def test_random(self):
""" Test using rng """
r, c = commitments.nm_commit(self.rng, self.msg)
self.assertEqual(r, self.r_golden)
self.assertEqual(c, self.c_golden)
class TestNMDecommit(TestCase):
""" Test NM Commitment Decommit """
def test_tv(self):
""" Test using test vectors """
for vector in vectors:
rc = commitments.nm_decommit(vector['X'], vector['R'], vector['C'])
self.assertEqual(rc, commitments.OK)
def test_failure(self):
""" Test error codes are propagated correctly """
rc = commitments.nm_decommit(vector['X'], vector['X'], vector['C'])
self.assertEqual(rc, commitments.FAIL)