def setUp(self):
self.cwd = os.path.dirname(os.path.abspath(__file__))
self.curve_name = 'prime256v1'
self.curve = wcurve.secp256r1_curve()
self.curve_infective = wcurve.secp256r1_curve_infective()
self.bin = 'ec_ref'
self.bin_path = os.path.join(self.cwd, self.bin)
return secret_key * curve.base_point
def compute_sharedkey(secret_key, pub_key):
if not pub_key.is_valid():
return
return secret_key * pub_key
def run(curve, tag):
sk1 = generate_secretkey(curve)
sk2 = generate_secretkey(curve)
pk1 = compute_pubkey(curve, sk1)
start = time.time()
pk2 = compute_pubkey(curve, sk2)
pub_time = time.time() - start
sh1 = compute_sharedkey(sk1, pk2)
assert sh1 is not None
start = time.time()
sh2 = compute_sharedkey(sk2, pk1)
shared_time = time.time() - start
assert sh2 is not None
print('%-25s: pub_key=%0.3fs shared_key=%0.3fs equals=%s' % \
(tag, pub_time, shared_time, sh1 == sh2))
if __name__ == '__main__':
run(wcurve.secp256r1_curve(), 'secp256r1')
run(wcurve.secp256r1_curve_infective(),
'secp256r1_curve_infective')
