public SM2() {
		this(null, (byte[]) null);
	}
@Test
	public void sm2BcdTest() {
		String text = "我是一段测试aaaa";

		final SM2 sm2 = SmUtil.sm2();

		// 公钥加密，私钥解密
		String encryptStr = sm2.encryptBcd(text, KeyType.PublicKey);
		String decryptStr = StrUtil.utf8Str(sm2.decryptFromBcd(encryptStr, KeyType.PrivateKey));
		assertEquals(text, decryptStr);
	}