private static final byte[] ENCLABEL_300 = toCBytes("SMB2AESCCM");
    private static final byte[] ENCLABEL_311 = toCBytes("SMB2C2SCipherKey");

    private static final byte[] DECCONTEXT_300 = toCBytes("ServerOut");
    private static final byte[] DECLABEL_300 = toCBytes("SMB2AESCCM");
    private static final byte[] DECLABEL_311 = toCBytes("SMB2S2CCipherKey");

    /**
     *
     */
    private Smb3KeyDerivation() {