    001    /* Copyright  (c) 2002 Graz University of Technology. All rights reserved.
    002     *
    003     * Redistribution and use in  source and binary forms, with or without
    004     * modification, are permitted  provided that the following conditions are met:
    005     *
    006     * 1. Redistributions of  source code must retain the above copyright notice,
    007     *    this list of conditions and the following disclaimer.
    008     *
    009     * 2. Redistributions in  binary form must reproduce the above copyright notice,
    010     *    this list of conditions and the following disclaimer in the documentation
    011     *    and/or other materials provided with the distribution.
    012     *
    013     * 3. The end-user documentation included with the redistribution, if any, must
    014     *    include the following acknowledgment:
    015     *
    016     *    "This product includes software developed by IAIK of Graz University of
    017     *     Technology."
    018     *
    019     *    Alternately, this acknowledgment may appear in the software itself, if
    020     *    and wherever such third-party acknowledgments normally appear.
    021     *
    022     * 4. The names "Graz University of Technology" and "IAIK of Graz University of
    023     *    Technology" must not be used to endorse or promote products derived from
    024     *    this software without prior written permission.
    025     *
    026     * 5. Products derived from this software may not be called
    027     *    "IAIK PKCS Wrapper", nor may "IAIK" appear in their name, without prior
    028     *    written permission of Graz University of Technology.
    029     *
    030     *  THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED
    031     *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
    032     *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
    033     *  PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE LICENSOR BE
    034     *  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
    035     *  OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
    036     *  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
    037     *  OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
    038     *  ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
    039     *  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
    040     *  OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
    041     *  POSSIBILITY  OF SUCH DAMAGE.
    042     */
    043
    044    package demo.pkcs.pkcs11;
    045
    046    import java.io.BufferedReader;
    047    import java.io.FileOutputStream;
    048    import java.io.InputStreamReader;
    049    import java.io.OutputStream;
    050    import java.io.PrintWriter;
    051
    052    import iaik.pkcs.pkcs11.Module;
    053    import iaik.pkcs.pkcs11.Session;
    054    import iaik.pkcs.pkcs11.Token;
    055    import iaik.pkcs.pkcs11.TokenInfo;
    056    import iaik.pkcs.pkcs11.objects.Data;
    057    import iaik.pkcs.pkcs11.objects.Object;
    058
    059
    060
    061    /**
    062     * This demo program read a data object with a specific label from the token.
    063     *
    064     * @author <a href="mailto:Karl.Scheibelhofer@iaik.at"> Karl Scheibelhofer </a>
    065     * @version 0.1
    066     * @invariants
    067     */
    068    public class ReadDataObject {
    069
    070      static PrintWriter output_;
    071
    072      static BufferedReader input_;
    073
    074      static {
    075        try {
    076          //output_ = new PrintWriter(new FileWriter("GetInfo_output.txt"), true);
    077          output_ = new PrintWriter(System.out, true);
    078          input_ = new BufferedReader(new InputStreamReader(System.in));
    079        } catch (Throwable thr) {
    080          thr.printStackTrace();
    081          output_ = new PrintWriter(System.out, true);
    082          input_ = new BufferedReader(new InputStreamReader(System.in));
    083        }
    084      }
    085
    086      public static void main(String[] args) {
    087        if (args.length != 3) {
    088          printUsage();
    089          System.exit(1);
    090        }
    091
    092        try {
    093          Module pkcs11Module = Module.getInstance(args[0]);
    094          pkcs11Module.initialize(null);
    095
    096          Token token = Util.selectToken(pkcs11Module, output_, input_);
    097          if (token == null) {
    098            output_.println("We have no token to proceed. Finished.");
    099            output_.flush();
    100            System.exit(0);
    101          }
    102          TokenInfo tokenInfo = token.getTokenInfo();
    103
    104          output_.println("################################################################################");
    105          output_.println("Information of Token:");
    106          output_.println(tokenInfo);
    107          output_.println("################################################################################");
    108
    109          // open an read-write user session
    110          Session session = Util.openAuthorizedSession(token, Token.SessionReadWriteBehavior.RW_SESSION, output_, input_);
    111
    112          output_.println("################################################################################");
    113          output_.println("searching for data object on the card using this search template... ");
    114          output_.flush();
    115
    116          // create certificate object template
    117          Data dataObjectTemplate = new Data();
    118
    119          // we could also set the name that manages this data object
    120          //dataObjectTemplate.getApplication().setCharArrayValue("Application Name");
    121
    122          // set the data object's label
    123          dataObjectTemplate.getLabel().setCharArrayValue(args[1].toCharArray());
    124
    125          // print template
    126          output_.println(dataObjectTemplate);
    127
    128          // start find operation
    129          session.findObjectsInit(dataObjectTemplate);
    130
    131          Object[] foundDataObjects = session.findObjects(1); // find first
    132
    133          Data dataObject;
    134          if (foundDataObjects.length > 0) {
    135            dataObject = (Data) foundDataObjects[0];
    136            output_.println("________________________________________________________________________________");
    137            output_.print("found this data object with handle: ");
    138            output_.println(dataObject.getObjectHandle());
    139            output_.println(dataObject);
    140            output_.println("________________________________________________________________________________");
    141            // FIXME, there may be more than one that matches the given template, the label is not unique in general
    142            // foundDataObjects = session.findObjects(1); //find next
    143          } else {
    144            dataObject = null;
    145          }
    146
    147          session.findObjectsFinal();
    148
    149          output_.println("################################################################################");
    150
    151          output_.println("################################################################################");
    152          output_.println("Writing content data (value attribute) to: " + args[2]);
    153
    154          OutputStream dataOutputStream = new FileOutputStream(args[2]);
    155
    156          byte[] data = dataObject.getValue().getByteArrayValue();
    157          if (data != null) {
    158            dataOutputStream.write(data);
    159          }
    160          dataOutputStream.flush();
    161          dataOutputStream.close();
    162
    163          output_.println("################################################################################");
    164
    165          session.closeSession();
    166          pkcs11Module.finalize(null);
    167
    168        } catch (Throwable ex) {
    169          ex.printStackTrace();
    170        }
    171      }
    172
    173      protected static void printUsage() {
    174        output_.println("ReadDataObject <PKCS#11 module name> <data object label> <output file>");
    175        output_.println("e.g.: ReadDataObject gclib.dll \"Student Data\" data.dat");
    176      }
    177
    178    }