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

/*---------------------------------------------------------------------------
 * Copyright (C) 1999-2001 Dallas Semiconductor Corporation, All Rights Reserved.
 *
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 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
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package com.dalsemi.onewire.application.sha;

import com.dalsemi.onewire.OneWireException;
import com.dalsemi.onewire.adapter.OneWireIOException;
import com.dalsemi.onewire.container.OneWireContainer;
import com.dalsemi.onewire.container.OneWireContainer18;
import com.dalsemi.onewire.utils.Address;
import com.dalsemi.onewire.utils.IOHelper;
import com.dalsemi.onewire.utils.SHA;
import com.dalsemi.onewire.application.file.OWFile;
import com.dalsemi.onewire.application.file.OWFileOutputStream;
import com.dalsemi.onewire.application.file.OWFileInputStream;
import com.dalsemi.onewire.application.file.OWFileNotFoundException;

import java.io.FileOutputStream;
import java.io.FileInputStream;
import java.io.IOException;

/**
 * <P>Class for simulating an instance of a SHA iButton Coprocessor involved
 * in SHA Transactions.  The Coprocessor is used for digitally signing transaction
 * data as well as generating random challenges for users and verifying
 * their response.</P>
 *
 * <p>With this class, no DS1963S SHA iButton is necessary for the coprocessor in
 * SHA Transactions.  The simulated Coprocessor iButton verifies signatures
 * and signs data for User iButtons.</P>
 *
 * <p>This class makes use of several performance enhancements for TINI.
 * For instance, most methods are <code>synchronized</code> to access instance variable
 * byte arrays rather than creating new byte arrays every time a transaction
 * is performed.  This could hurt performance in multi-threaded
 * applications, but the usefulness of having several threads contending
 * to talk to a single iButton is questionable since the methods in
 * <code>com.dalsemi.onewire.adapter.DSPortAdapter</code>
 * <code>beginExclusive(boolean)</code> and <code>endExclusive()</code> should be used.</p>
 *
 * @see SHATransaction
 * @see SHAiButtonUser
 * @see SHAiButtonCopr
 *
 * @version 1.00
 * @author  SKH
 */
public class SHAiButtonCoprVM
   extends SHAiButtonCopr
{
   /**
    * 8 8-byte Secrets for this simulated SHAiButton
    */
   protected byte[][] secretPage = new byte[8][8];

   /**
    * 1-Wire Address for this simulated device
    */
   protected byte[] address = new byte[8];

   // ***********************************************************************
   // Transient Data Members
   // ***********************************************************************

   //Temporary 512-bit buffer used for digest computation
   private static final byte[] digestBuff = new byte[64];

   //used for compute first secret
   private static final byte[] NullSecret
            = new byte[]{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};

   //used for generate challenge and random RomID
   private static java.util.Random rand = new java.util.Random();

   // ***********************************************************************
   // Class Constructors
   // ***********************************************************************

   /**
    * <P>Sets up this simulated coprocessor based on the provided parameters.
    * Then, the system secret and authentication secret are installed on the
    * simulated coprocessor iButton.</P>
    *
    * <P>For the proper format of the coprocessor data file, see the
    * document entitled "Implementing Secured D-Identification and E-Payment
    * Applications using SHA iButtons".  For the format of TMEX file
    * structures, see Application Note 114.</P>
    *
    * @param RomID The address for the simulated coprocessor.
    * @param l_signPageNumber page number used for signing user account data.
    *        (Should be page 8, but page 0 is acceptable if you don't need
    *        the TMEX directory structure)
    * @param l_authPageNumber page number used for recreating user secret.
    * @param l_wspcPageNumber page number used for storing user secret and
    *        recreating authentication MAC.
    * @param l_version version of the service provided by this coprocessor.
    * @param l_encCode refers to a type of encryption used for user account
    *        data stored on user buttons.
    * @param l_serviceFileExt the file extension used for the service file.
    *        (An extension of decimal 102 is reserved for Money files).
    * @param l_serviceFilename the 4-byte name of the user's account data
    *        file.
    * @param l_providerName the name of the provider of this service
    * @param l_bindData the binding data used to finalize secret installation
    *        on user buttons.
    * @param l_bindCode the binding code used to finalize secret installation
    *        on user buttons.
    * @param l_auxData any auxilliary or miscellaneous data to be stored on
    *        the coprocessor.
    * @param l_initialSignature the 20-byte initial MAC placed in user account
    *        data before generating actual MAC.
    * @param l_signingChlg the 3-byte challenge used for signing user
    *        account data.
    * @param l_signingSecret the system signing secret used by the
    *        service being installed on this coprocessor.
    * @param l_authSecret the system authentication secret used by the
    *        service being installed on this coprocessor.
    *
    * @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(OneWireContainer18,String,byte[],byte[])
    */
   public SHAiButtonCoprVM(byte[] RomID, int l_signPageNumber,
                           int l_authPageNumber, int l_wspcPageNumber,
                           int l_version, int l_encCode, byte l_serviceFileExt,
                           byte[] l_serviceFilename, byte[] l_providerName,
                           byte[] l_bindData, byte[] l_bindCode, byte[] l_auxData,
                           byte[] l_initialSignature, byte[] l_signingChlg,
                           byte[] l_signingSecret, byte[] l_authSecret)
      throws OneWireException, OneWireIOException
   {
      //clear any errors
      this.lastError = this.NO_ERROR;

      //set up all the appropriate members
      System.arraycopy(RomID,0,this.address,0,8);
      this.signPageNumber = l_signPageNumber;
      this.authPageNumber = l_authPageNumber;
      this.wspcPageNumber = l_wspcPageNumber;
      this.version = l_version;
      this.encCode = l_encCode;
      System.arraycopy(l_serviceFilename,0,this.filename,0,4);
      this.filename[4] = l_serviceFileExt;
      this.providerName = new String(l_providerName);
      System.arraycopy(l_bindData,0,this.bindData,0,32);
      System.arraycopy(l_bindCode,0,this.bindCode,0,7);
      this.auxData = new String(l_auxData);
      System.arraycopy(l_initialSignature,0,this.initialSignature,0,20);
      System.arraycopy(l_signingChlg,0,this.signingChallenge,0,3);

      //Check to see if this coprocessor's authentication secret
      //is appropriately padded to be used with a DS1961S
      this.DS1961Scompatible = ((l_authSecret.length%47)==0);
      int secretDiv = l_authSecret.length/47;
      for(int j=0; j<secretDiv && DS1961Scompatible; j++)
      {
         int offset = 47*j;
         for(int i=32; i<36 && this.DS1961Scompatible; i++)
            this.DS1961Scompatible
               = (l_authSecret[i + offset] == (byte)0x0FF);
         for(int i=44; i<47 && this.DS1961Scompatible; i++)
            this.DS1961Scompatible
               = (l_authSecret[i + offset] == (byte)0x0FF);
      }

      //Install the system signing secret, used to sign and validate all user data
      if(!installMasterSecret(signPageNumber, l_signingSecret, signPageNumber&7))
         throw new OneWireIOException("failed to install system signing secret");

      //Install the system authentication secret, used to authenticate users
      if(!installMasterSecret(authPageNumber, l_authSecret, authPageNumber&7))
         throw new OneWireIOException("failed to install authentication secret");
   }

   /**
    * <p>Loads a simulated DS1963S coprocessor device from disk.  The given
    * file name is loaded to get all the parameters of the coprocessor.
    * It is assumed that the secrets were stored in the file when
    * the simulated coprocessor's data was saved to disk.</p>
    *
    * @param filename The filename of the simulated coprocessor's data file ("shaCopr.dat")
    *
    * @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,byte[],byte[])
    * @see #SHAiButtonCoprVM(OneWireContainer,String)
    * @see #SHAiButtonCoprVM(OneWireContainer,String,byte[],byte[])
    * @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(String filename)
      throws OneWireException, OneWireIOException
   {
      if(!load(filename))
         throw new OneWireIOException("failed to load config info");
   }

   /**
    * <p>Loads a simulated DS1963S coprocessor device from disk.  The given
    * file name is loaded to get all the parameters of the coprocessor.
    * After it is loaded, the given secrets are installed.</p>
    *
    * @param filename The filename of the simulated coprocessor's data file ("shaCopr.dat")
    * @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(OneWireContainer,String)
    * @see #SHAiButtonCoprVM(OneWireContainer,String,byte[],byte[])
    * @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(String filename,
                           byte[] sign_secret, byte[] auth_secret)
      throws OneWireException, OneWireIOException
   {
      if(!load(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>Loads a simulated DS1963S coprocessor device from any 1-Wire memory device
    * supported by the 1-Wire File I/O API.  The given file name is loaded to get
    * all the parameters of the coprocessor.  It is assumed that the secrets were
    * stored in the file when the simulated coprocessor's data was saved to disk.</p>
    *
    * @param owc 1-Wire memory device with valid TMEX file system
    * @param filename The filename of the simulated coprocessor's data file ("shaCopr.dat")
    *
    * @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,byte[],byte[])
    * @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)
      throws OneWireException, OneWireIOException
   {
      if(!load(owc,filename))
         throw new OneWireIOException("failed to load config info");
   }

   /**
    * <p>Loads a simulated DS1963S coprocessor device from any 1-Wire
    * memory device supported by the 1-Wire File I/O API.  The given
    * file name is loaded to get all the parameters of the coprocessor.
    * After it is loaded, the given secrets are installed.</p>
    *
    * @param owc 1-Wire memory device with valid TMEX file system
    * @param filename The filename of the simulated coprocessor's data file ("shaCopr.dat")
    * @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