multibackend.py 文件源码

def generate_elliptic_curve_private_key(self, curve):
        for b in self._filtered_backends(EllipticCurveBackend):
            try:
                return b.generate_elliptic_curve_private_key(curve)
            except UnsupportedAlgorithm:
                continue

        raise UnsupportedAlgorithm(
            "This backend does not support this elliptic curve.",
            _Reasons.UNSUPPORTED_ELLIPTIC_CURVE
        )