shaibuttoncoprvm.java

这是一个以JAVA编写的程序,本人还没有试过,是一个简单的温度控制系统

    *         adapter
    *
    * @see #SHAiButtonCoprVM(String)
    * @see #SHAiButtonCoprVM(String,byte[],byte[])
    * @see #SHAiButtonCoprVM(OneWireContainer,String)
    * @see #SHAiButtonCoprVM(OneWireContainer18,String,byte[],byte[])
    * @see #SHAiButtonCoprVM(byte[],int,int,int,int,int,byte,byte[],byte[],byte[],byte[],byte[],byte[],byte[],byte[],byte[])
    */
   public SHAiButtonCoprVM(OneWireContainer owc, String filename,
                           byte[] sign_secret, byte[] auth_secret)
      throws OneWireException, OneWireIOException
   {
      if(!load(owc,filename))
         throw new OneWireIOException("failed to load config info");
      if(!installMasterSecret(signPageNumber, sign_secret, signPageNumber&7))
         throw new OneWireIOException("failed to install system signing secret");
      if(!installMasterSecret(authPageNumber, auth_secret, authPageNumber&7))
         throw new OneWireIOException("failed to install authentication secret");
   }

   /**
    * <p>Simulates a specific DS1963S coprocessor device.  First, the given
    * TMEX file name is loaded of the container to get all the parameters of
    * the coprocessor.  Then (since secrets are not readable off the iButton,
    * they must be provided) the secrets are installed on the virtual
    * coprocessor.</p>
    *
    * @param owc The coprocessor button this VM will simulate.
    * @param filename The TMEX filename of the coprocessor service file ("COPR.0")
    * @param sign_secret The system data signing secret.
    * @param auth_secret The system device authentication secret.
    *
    * @throws OneWireIOException on a 1-Wire communication error such as
    *         reading an incorrect CRC from a 1-Wire device.  This could be
    *         caused by a physical interruption in the 1-Wire Network due to
    *         shorts or a newly arriving 1-Wire device issuing a 'presence pulse'.
    * @throws OneWireException on a communication or setup error with the 1-Wire
    *         adapter
    *
    * @see #SHAiButtonCoprVM(String)
    * @see #SHAiButtonCoprVM(String,byte[],byte[])
    * @see #SHAiButtonCoprVM(OneWireContainer,String)
    * @see #SHAiButtonCoprVM(OneWireContainer,String,byte[],byte[])
    * @see #SHAiButtonCoprVM(byte[],int,int,int,int,int,byte,byte[],byte[],byte[],byte[],byte[],byte[],byte[],byte[],byte[])
    */
   public SHAiButtonCoprVM(OneWireContainer18 owc, String filename,
                           byte[] sign_secret, byte[] auth_secret)
      throws OneWireException, OneWireIOException
   {
      if(!load(owc,filename))
         throw new OneWireIOException("failed to load config info");
      if(!installMasterSecret(signPageNumber, sign_secret, signPageNumber&7))
         throw new OneWireIOException("failed to install system signing secret");
      if(!installMasterSecret(authPageNumber, auth_secret, authPageNumber&7))
         throw new OneWireIOException("failed to install authentication secret");
   }

   // ***********************************************************************
   // End Constructors
   // ***********************************************************************

   // ***********************************************************************
   // Save and Load methods for serializing all data
   // ***********************************************************************

   /**
    * <p>Saves simulated coprocessor configuration info to an (almost)
    * standard-format to a hard drive file.</p>
    *
    * @param filename The filename of the simulated coprocessor's data
    *        file ("shaCopr.dat")
    * @param saveSecretData If <code>true</true>, the raw secret information
    *        is also written to the file
    *
    * @throws OneWireIOException on a 1-Wire communication error such as
    *         reading an incorrect CRC from a 1-Wire device.  This could be
    *         caused by a physical interruption in the 1-Wire Network due to
    *         shorts or a newly arriving 1-Wire device issuing a 'presence pulse'.
    * @throws OneWireException on a communication or setup error with the 1-Wire
    *         adapter
    *
    * @return <code>true</code> if the info was successfully saved
    */
   public boolean save(String filename, boolean saveSecretData)
      throws OneWireException, OneWireIOException
   {
      try
      {
         //Create the configuration file
         FileOutputStream fos = new FileOutputStream(filename);

         //write the data out to the config file
         toStream(fos);

         //non-standard additions
         fos.write(address,0,8);
         for(int i=0; i<8; i++)
         {
            if(saveSecretData)
               fos.write(secretPage[i]);
            else
               fos.write(NullSecret);
         }
         fos.flush();
         fos.close();

         return true;
      }
      catch(Exception e)
      {
         return false;
      }
   }

   /**
    * <p>Saves simulated coprocessor configuration info to an (almost)
    * standard-format to a 1-Wire Memory Device's TMEX file.</p>
    *
    * @param owc 1-Wire Memory Device with valid TMEX file structure.
    * @param filename The TMEX filename of the simulated coprocessor's data
    *        file ("COPR.2")
    * @param saveSecretData If <code>true</true>, the raw secret information
    *        is also written to the file.
    *
    * @throws OneWireIOException on a 1-Wire communication error such as
    *         reading an incorrect CRC from a 1-Wire device.  This could be
    *         caused by a physical interruption in the 1-Wire Network due to
    *         shorts or a newly arriving 1-Wire device issuing a 'presence pulse'.
    * @throws OneWireException on a communication or setup error with the 1-Wire
    *         adapter
    *
    * @return <code>true</code> if the info was successfully saved
    */
   public boolean save(OneWireContainer owc, String filename,
                       boolean saveSecretData)
      throws OneWireException, OneWireIOException
   {
      try
      {
         //Create the configuration file
         OWFileOutputStream fos = new OWFileOutputStream(owc, filename);

         //write the data out
         toStream(fos);

         //non-standard additions
         fos.write(address,0,8);
         for(int i=0; i<8; i++)
         {
            if(saveSecretData)
               fos.write(secretPage[i]);
            else
               fos.write(NullSecret);
         }
         fos.flush();
         fos.close();

         return true;
      }
      catch(Exception ioe)
      {
         return false;
      }
   }

   /**
    * <p>Loads coprocessor configuration information from an (almost) standard
    * service file on hard drive. If secret information was saved, this routine
    * automatically loads it.</P>
    *
    * @param filename The filename of the simulated coprocessor's data
    *        file ("shaCopr.dat")
    *
    * @return <code>true</code> if the info was successfully loaded
    */
   public boolean load(String filename)
   {
      try
      {
         //open the file containing config info
         FileInputStream fis = new FileInputStream(filename);

         //load info from the file stream
         fromStream(fis);

         //non-standard file components
         if(fis.available()>0)
         {
            fis.read(this.address,0,8);
            for(int i=0; i<8 && fis.available()>0; i++)
            {
               fis.read(secretPage[i]);
            }
         }
         fis.close();
         return true;
      }
      catch(Exception e)
      {
         return false;
      }
   }

   /**
    * <p>Loads coprocessor configuration information from an (almost) standard
    * service TMEX file on 1-Wire memory device. If secret information was saved,
    * this routine automatically loads it.</P>
    *
    * @param owc 1-Wire memory device with valid TMEX file structure
    * @param filename The TMEX filename of the simulated coprocessor's data
    *        file ("COPR.2")
    *
    * @return <code>true</code> if the info was successfully loaded
    */
   public boolean load(OneWireContainer owc, String filename)
   {
      try
      {
         //open the file containing config info
         OWFileInputStream fis = new OWFileInputStream(owc,filename);

         //load info from the file stream
         fromStream(fis);

         //non-standard file components
         if(fis.available()>0)
         {
            fis.read(this.address,0,8);
            for(int i=0; i<8 && fis.available()>0; i++)
            {
               fis.read(secretPage[i]);
            }
         }
         fis.close();
         return true;
      }
      catch(Exception e)
      {
         return false;
      }
   }

   /**
    * <p>Loads coprocessor configuration information from a standard TMEX
    * service file on a DS1963S.</P>
    *
    * @param owc DS1963S set up as a valid coprocessor
    * @param filename The TMEX filename of the coprocessor's data
    *        file ("COPR.0")
    *
    * @return <code>true</code> if the info was successfully loaded
    */
   public boolean load(OneWireContainer18 owc, String filename)
   {
      try
      {
         //open the file containing config info
         OWFileInputStream fis = new OWFileInputStream(owc,filename);

         //load info from the file stream
         fromStream(fis);

         //non-standard components
         System.arraycopy(owc.getAddress(),0,this.address,0,8);

         fis.close();
         return true;
      }
      catch(Exception e)
      {
         e.printStackTrace();
         return false;
      }
   }
   // ***********************************************************************
   // End Save and Load methods
   // ***********************************************************************


   // ***********************************************************************
   // Begin SHA iButton Methods
   // ***********************************************************************


   /**
    * <P>Given a 32-byte array for page data and a 32-byte array for
    * scratchpad content, this function will create a 20-byte signature
    * for the data based on SHA-1.  The format of the calculation of the
    * data signature is as follows: First 4-bytes of signing secret,
    * 32-bytes of accountData, 12 bytes of scratchpad data starting at
    * index 8, last 4-bytes of signing secret, 3 bytes of scratchpad data
    * starting at index 20, and the rest is padding as specified for
    * standard SHA-1.  This is all laid out, in detail, in the DS1963S
    * data sheet.</P>
    *
    * <P>The resulting 20-byte signature is copied into
    * <code>mac_buffer</code> starting at <code>macStart</code>.  If you're
    * updating a signature that already exists in the accountData array,
    * it is acceptable to call the method like so:
    * <code><pre>
    *   copr.createDataSignature(accountData, spad, accountData, 8);
    * </pre></code>
    * assuming that the signature starts at index 8 of the accountData
    * array.</p>
    *
    * @param accountData the 32-byte data page for which the signature is
    *        generated.
    * @param signScratchpad the 32-byte scratchpad contents for which the
    *        signature is generated.  This will contain parameters such
    *        as the user's write cycle counter for the page, the user's
    *        1-wire address, and the page number where account data is
    *        stored.
    * @param mac_buffer used to return the 20-byte signature generated
    *        by signing the page using the coprocessor's system signing
    *        secret.