(byte) 0x99
        };

        byte[] output = new byte[12];
        byte[] dk = deriveKeyAES(baseKey, cst); // Checksum key
        try {
            Mac m = Mac.getInstance("HmacSHA1");
            m.init(new SecretKeySpec(dk, HMAC_KEY));
            System.arraycopy(m.doFinal(input), 0, output, 0, 12);
            return output;
        }
        finally {

    }
    public String dec_ndr_string() throws NdrException {
        align(4);
        int i = index;
        String val = null;
        int len = Encdec.dec_uint32le(buf, i);
        i += 12;
        if (len != 0) {
            len--;
            int size = len * 2;
            try {
                if (size < 0 || size > 0xFFFF) throw new NdrException( NdrException.INVALID_CONFORMANCE );

                    (32 + domain.length + workstation.length) : 16];
            System.arraycopy(NTLMSSP_SIGNATURE, 0, type1, 0, 8);
            writeULong(type1, 8, 1);
            writeULong(type1, 12, flags);
            if (hostInfo) {
                writeSecurityBuffer(type1, 16, 32, domain);
                writeSecurityBuffer(type1, 24, 32 + domain.length, workstation);
            }
            return type1;

        super(server, new lsarpc.LsarObjectAttributes(), access, policyHandle);
        object_attributes.length = 24;
lsarpc.LsarQosInfo qos = new lsarpc.LsarQosInfo();
qos.length = 12;
qos.impersonation_level = 2;
qos.context_mode = 1;
qos.effective_only = 0;
object_attributes.security_quality_of_service = qos;
        ptype = 0;
        flags = DCERPC_FIRST_FRAG | DCERPC_LAST_FRAG;
    }

        bufferIndex += 4; // 2 reserved
        dataLength = readInt2( buffer, bufferIndex );
        bufferIndex += 2;
        dataOffset = readInt2( buffer, bufferIndex );
        bufferIndex += 12; // 10 reserved

        return bufferIndex - start;
    }
    int readBytesWireFormat( byte[] buffer, int bufferIndex ) {
        // handled special in SmbTransport.doRecv()
        return 0;
    }

        bufferIndex += 4; // 2 reserved
        this.dataLength = SMBUtil.readInt2(buffer, bufferIndex);
        bufferIndex += 2;
        this.dataOffset = SMBUtil.readInt2(buffer, bufferIndex);
        bufferIndex += 12; // 10 reserved

        return bufferIndex - start;
    }


    @Override
    protected int readBytesWireFormat ( byte[] buffer, int bufferIndex ) {
        // handled special in SmbTransport.doRecv()

        buf.setIndex(start);
        encode_header(buf);
        buf.setIndex(start + length);
    }
    public void decode(NdrBuffer buf) throws NdrException {
        decode_header(buf);

        if (ptype != 12 && ptype != 2 && ptype != 3 && ptype != 13)
            throw new NdrException("Unexpected ptype: " + ptype);

        if (ptype == 2 || ptype == 3) { /* Response or Fault */
            alloc_hint = buf.dec_ndr_long();

        buf.setIndex(start + this.length);
    }


    @Override
    public void decode ( NdrBuffer buf ) throws NdrException {
        decode_header(buf);

        if ( this.ptype != 12 && this.ptype != 2 && this.ptype != 3 && this.ptype != 13 )
            throw new NdrException("Unexpected ptype: " + this.ptype);

        if ( this.ptype == 2 || this.ptype == 3 ) { /* Response or Fault */

    private static final int SHARING_DENY_READ_EXECUTE       = 0x30;
    private static final int SHARING_DENY_NONE               = 0x40;

    private static final int DO_NOT_CACHE  = 0x1000; // bit 12
    private static final int WRITE_THROUGH = 0x4000; // bit 14

    private static final int OPEN_FN_CREATE = 0x10;
    private static final int OPEN_FN_FAIL_IF_EXISTS = 0x00;
    private static final int OPEN_FN_OPEN = 0x01;

            block = ((bytes[i++] & 0xff) << 16) | ((bytes[i++] & 0xff) << 8) |
                    (bytes[i++] & 0xff);
            buffer.append(ALPHABET.charAt(block >>> 18));
            buffer.append(ALPHABET.charAt((block >>> 12) & 0x3f));
            buffer.append(ALPHABET.charAt((block >>> 6) & 0x3f));
            buffer.append(ALPHABET.charAt(block & 0x3f));
        }
        if (remainder == 0) return buffer.toString();