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.ByteArrayOutputStream;
047 import java.io.FileInputStream;
048 import java.io.InputStream;
049 import java.io.PrintWriter;
050 import java.util.Arrays;
051
052 import iaik.pkcs.pkcs11.Mechanism;
053 import iaik.pkcs.pkcs11.Module;
054 import iaik.pkcs.pkcs11.Session;
055 import iaik.pkcs.pkcs11.Slot;
056 import iaik.pkcs.pkcs11.Token;
057 import iaik.pkcs.pkcs11.objects.DES3SecretKey;
058 import iaik.pkcs.pkcs11.parameters.InitializationVectorParameters;
059 // import iaik.security.provider.IAIK;
060
061
062
063 /**
064 * This demo program uses a PKCS#11 module to encrypt a given file and test
065 * if the data can be decrpted.
066 *
067 * @author <a href="mailto:Karl.Scheibelhofer@iaik.at"> Karl Scheibelhofer </a>
068 * @version 0.1
069 * @invariants
070 */
071 public class EncryptDecrypt {
072
073 static PrintWriter output_;
074
075 static {
076 try {
077 //output_ = new PrintWriter(new FileWriter("Encrypt_output.txt"), true);
078 output_ = new PrintWriter(System.out, true);
079 } catch (Throwable thr) {
080 thr.printStackTrace();
081 output_ = new PrintWriter(System.out, true);
082 }
083 }
084
085 public static void main(String[] args) {
086 if (args.length != 3) {
087 printUsage();
088 System.exit(1);
089 }
090
091 try {
092 // Security.addProvider(new IAIK());
093
094 Module pkcs11Module = Module.getInstance(args[0]);
095 pkcs11Module.initialize(null);
096
097 Slot[] slots = pkcs11Module.getSlotList(Module.SlotRequirement.TOKEN_PRESENT);
098
099 if (slots.length == 0) {
100 output_.println("No slot with present token found!");
101 System.exit(0);
102 }
103
104 Slot selectedSlot = slots[0];
105 Token token = selectedSlot.getToken();
106
107 Session session =
108 token.openSession(Token.SessionType.SERIAL_SESSION, Token.SessionReadWriteBehavior.RO_SESSION, null, null);
109
110 // login user
111 session.login(Session.UserType.USER, args[1].toCharArray());
112
113 output_.println("################################################################################");
114 output_.println("generate secret encryption/decryption key");
115 Mechanism keyMechanism = Mechanism.DES3_KEY_GEN;
116 DES3SecretKey secretEncryptionKeyTemplate = new DES3SecretKey();
117 secretEncryptionKeyTemplate.getEncrypt().setBooleanValue(Boolean.TRUE);
118 secretEncryptionKeyTemplate.getDecrypt().setBooleanValue(Boolean.TRUE);
119
120 DES3SecretKey encryptionKey = (DES3SecretKey) session.generateKey(keyMechanism, secretEncryptionKeyTemplate);
121
122 output_.println("################################################################################");
123
124 output_.println("################################################################################");
125 output_.println("encrypting data from file: " + args[2]);
126
127 InputStream dataInputStream = new FileInputStream(args[2]);
128
129 byte[] dataBuffer = new byte[1024];
130 int bytesRead;
131 ByteArrayOutputStream streamBuffer = new ByteArrayOutputStream();
132
133 // feed in all data from the input stream
134 while ((bytesRead = dataInputStream.read(dataBuffer)) >= 0) {
135 streamBuffer.write(dataBuffer, 0, bytesRead);
136 }
137 Arrays.fill(dataBuffer, (byte) 0); // ensure that no data is left in the memory
138 streamBuffer.flush();
139 streamBuffer.close();
140 byte[] rawData = streamBuffer.toByteArray();
141
142 //be sure that your token can process the specified mechanism
143 Mechanism encryptionMechanism = Mechanism.DES3_CBC_PAD;
144 byte[] encryptInitializationVector = { 0, 0, 0, 0, 0, 0, 0, 0};
145 InitializationVectorParameters encryptInitializationVectorParameters =
146 new InitializationVectorParameters(encryptInitializationVector);
147 encryptionMechanism.setParameters(encryptInitializationVectorParameters);
148
149 // initialize for encryption
150 session.encryptInit(encryptionMechanism, encryptionKey);
151
152 byte[] encryptedData = session.encrypt(rawData);
153
154 output_.println("################################################################################");
155
156 output_.println("################################################################################");
157 output_.println("trying to decrypt");
158
159 //Cipher des3Cipher = Cipher.getInstance("DES3/CBC/PKCS5Padding");
160
161 Mechanism decryptionMechanism = Mechanism.DES3_CBC_PAD;
162 byte[] decryptInitializationVector = { 0, 0, 0, 0, 0, 0, 0, 0};
163 InitializationVectorParameters decryptInitializationVectorParameters =
164 new InitializationVectorParameters(decryptInitializationVector);
165 decryptionMechanism.setParameters(decryptInitializationVectorParameters);
166
167 // initialize for decryption
168 session.decryptInit(decryptionMechanism, encryptionKey);
169
170 byte[] decryptedData = session.decrypt(encryptedData);
171
172 // compare initial data and decrypted data
173 boolean equal = false;
174 if (rawData.length != decryptedData.length) {
175 equal = false;
176 } else {
177 equal = true;
178 for (int i=0; i < rawData.length; i++) {
179 if (rawData[i] != decryptedData[i]) {
180 equal = false;
181 break;
182 }
183 }
184 }
185
186 output_.println((equal) ? "successful" : "ERROR");
187
188 output_.println("################################################################################");
189
190 session.closeSession();
191 pkcs11Module.finalize(null);
192
193 } catch (Throwable thr) {
194 thr.printStackTrace();
195 }
196 }
197
198 public static void printUsage() {
199 output_.println("Usage: EncryptDecrypt <PKCS#11 module> <user-PIN> <file to be encrypted>");
200 output_.println(" e.g.: EncryptDecrypt pk2priv.dll password data.dat");
201 output_.println("The given DLL must be in the search path of the system.");
202 }
203
204 }