public static byte[] getValue(byte[] raw) {
        try (final Asn1InputStream is = new Asn1InputStream(raw)) {
            is.readTag();
            return is.read(is.readLength());
        }
    }
@Test
    public void getValueShouldSkipTagAndExtendedLength() {
        final byte[] data = new byte[0x81];
        new SecureRandom().nextBytes(data);
        final byte[] obj = Arrays.concatenate(new byte[] { 0x10, (byte) 0x81, (byte) 0x81 }, data);
        assertArrayEquals(data, Asn1Utils.getValue(obj));
    }