if ( super.equals(obj) ) {
            if ( ! ( obj instanceof NtlmPasswordAuthentication ) ) {
                return !this.areHashesExternal();
            }
            NtlmPasswordAuthentication ntlm = (NtlmPasswordAuthentication) obj;
            if ( this.areHashesExternal() && ntlm.areHashesExternal() ) {
                return Arrays.equals(this.ansiHash, ntlm.ansiHash) && Arrays.equals(this.unicodeHash, ntlm.unicodeHash);

    private static boolean isExternalAuth ( NtlmPasswordAuthenticator pwAuth ) {
        return pwAuth instanceof jcifs.smb.NtlmPasswordAuthentication && ! ( (jcifs.smb.NtlmPasswordAuthentication) pwAuth ).areHashesExternal()
                && pwAuth.getPassword().isEmpty();
    }


    @Override
    protected int writeBytesWireFormat ( byte[] dst, int dstIndex ) {
        int start = dstIndex;