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 () {}


    /**
     * 
     * @param dialect
     * @param sessionKey
     * @param preauthIntegrity