public static ECPrivateKeyParameters toSm2Params(String d) {
		return ECKeyUtil.toSm2PrivateParams(d);
	}
@Test
	public void createECPrivateKeyParametersTest() {
		String privateKeyHex = "5F6CA5BB044C40ED2355F0372BF72A5B3AE6943712F9FDB7C1FFBAECC06F3829";

		final ECPrivateKeyParameters keyParameters = BCUtil.toSm2Params(privateKeyHex);
		assertNotNull(keyParameters);
	}