def test_jac():
ec = Curve(13, 0, 2, (1, 9), 19, 1, False)
assert ec._jac_equality(ec.GJ, _jac_from_aff(ec.G))
# q in [2, n-1]
q = 2 + secrets.randbelow(ec.n - 2)
Q = _mult_aff(q, ec.G, ec)
QJ = _mult_jac(q, ec.GJ, ec)
assert ec._jac_equality(QJ, _jac_from_aff(Q))
assert not ec._jac_equality(QJ, ec.negate(QJ))
assert not ec._jac_equality(QJ, ec.GJ)
def test_jac_equality() -> None:
ec = Curve(13, 0, 2, (1, 9), 19, 1, False)
assert ec._jac_equality(ec.GJ, _jac_from_aff(ec.G))
# q in [2, n-1], as the difference with ec.GJ is checked below
q = 2 + secrets.randbelow(ec.n - 2)
Q = _mult_aff(q, ec.G, ec)
QJ = _mult(q, ec.GJ, ec)
assert ec._jac_equality(QJ, _jac_from_aff(Q))
assert not ec._jac_equality(QJ, ec.negate_jac(QJ))
assert not ec._jac_equality(QJ, ec.GJ)