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from unittest import TestCase
from pyecsca.ec.params import get_params
class FormulaTests(TestCase):
def setUp(self):
self.secp128r1 = get_params("secg", "secp128r1", "projective")
self.add = self.secp128r1.curve.coordinate_model.formulas["add-2007-bl"]
def test_wrong_call(self):
with self.assertRaises(ValueError):
self.add()
with self.assertRaises(ValueError):
self.add(self.secp128r1.generator.to_affine(), self.secp128r1.generator.to_affine())
def test_indices(self):
self.assertEqual(self.add.input_index, 1)
self.assertEqual(self.add.output_index, 3)
def test_inputs_outputs(self):
self.assertEqual(self.add.inputs, {"X1", "Y1", "Z1", "X2", "Y2", "Z2"})
self.assertEqual(self.add.outputs, {"X3", "Y3", "Z3"})
def test_num_ops(self):
self.assertEqual(self.add.num_operations, 33)
self.assertEqual(self.add.num_multiplications, 17)
self.assertEqual(self.add.num_divisions, 0)
self.assertEqual(self.add.num_inversions, 0)
self.assertEqual(self.add.num_powers, 0)
self.assertEqual(self.add.num_squarings, 6)
self.assertEqual(self.add.num_addsubs, 10)
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