byte[] keybytes = key.getEncoded();
        Cipher cipher = Cipher.getInstance("AES/CBC/NoPadding");
        cipher.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(keybytes, "AES"), new IvParameterSpec(ZERO_IV, 0, ZERO_IV.length));
        if ( constant.length != cipher.getBlockSize() ) {
            constant = expandNFold(constant, cipher.getBlockSize());
        }
        byte[] enc = constant;

        int start = dstIndex;

        writeInt2( informationLevel, dst, dstIndex );
        dstIndex += 2;

        /* windows98 has what appears to be another 4 0's followed by the share
         * name as a zero terminated ascii string "\TMP" + '\0'
         *
         * As is this works, but it deviates from the spec section 4.1.6.6 but
         * maybe I should put it in. Wonder what NT does?
         */

        SMBUtil.writeInt2(mapInformationLevel(this.informationLevel), dst, dstIndex);
        dstIndex += 2;

        /*
         * windows98 has what appears to be another 4 0's followed by the share
         * name as a zero terminated ascii string "\TMP" + '\0'
         *
         * As is this works, but it deviates from the spec section 4.1.6.6 but
         * maybe I should put it in. Wonder what NT does?
         */

        }

        if ( usage == 0 ) {
            if ( log.isTraceEnabled() ) {
                log.trace("Transport usage dropped to zero " + this);
            }
        }
        else if ( usage < 0 ) {
            throw new RuntimeCIFSException("Usage count dropped below zero");
        }
    }


    /**
     * {@inheritDoc}
     *
     * @see java.lang.Object#finalize()
     */

        return 0;
    }


    @Override
    protected int readParametersWireFormat ( byte[] buffer, int bufferIndex, int len ) {
        // observed two zero bytes here with at least win98
        return 2;
    }


    @Override
    protected int readDataWireFormat ( byte[] buffer, int bufferIndex, int len ) throws SMBProtocolDecodingException {

     * signing and sealing authenticated communication.
     */
    public static final int NTLMSSP_NEGOTIATE_LM_KEY = 0x00000080;

    /**
     * ??? According to spec this is a reserved bit and must be set to zero
     */
    public static final int NTLMSSP_NEGOTIATE_NETWARE = 0x00000100;

    /**
     * Indicates support for NTLM authentication.
     */
    public static final int NTLMSSP_NEGOTIATE_NTLM = 0x00000200;

     */
    public boolean isEmpty () {
        return this.sub_authority_count == 0;
    }


    /**
     * 
     * @return whether the SID is blank (all sub-authorities zero)
     */
    public boolean isBlank () {
        boolean blank = true;
        for ( int sub : this.sub_authority )
            blank = blank && ( sub == 0 );
        return blank;
    }


    /**

     */
    public SMB1SigningDigest ( byte[] macSigningKey ) {
        this.digest = Crypto.getMD5();
        this.macSigningKey = macSigningKey;
    }


    /**
     * Construct a digest with a non-zero starting sequence number
     * 
     * @param macSigningKey
     * @param initialSequence
     */
    public SMB1SigningDigest ( byte[] macSigningKey, int initialSequence ) {
        this.digest = Crypto.getMD5();

                                        buffer[bufferIndex + len + 1] != (byte)0x00 ) {
                            len += 2;
                            if( len > 256 ) {
                                throw new RuntimeException( "zero termination not found" );
                            }
                        }
                        server.oemDomainName = new String( buffer, bufferIndex,
                                len, UNI_ENCODING );

        dstIndex += 4;

        // ReadChannelInfo
        SMBUtil.writeInt2(0, dst, dstIndex);
        SMBUtil.writeInt2(0, dst, dstIndex + 2);
        dstIndex += 4;

        // one byte in buffer must be zero
        dst[ dstIndex ] = 0;
        dstIndex += 1;

        return dstIndex - start;
    }


    /**
     * {@inheritDoc}
     *