1 // Copyright (c) 2002 Graz University of Technology. All rights reserved. 2 // 3 // Redistribution and use in source and binary forms, with or without modification, 4 // are permitted provided that the following conditions are met: 5 // 6 // 1. Redistributions of source code must retain the above copyright notice, this 7 // list of conditions and the following disclaimer. 8 // 9 // 2. Redistributions in binary form must reproduce the above copyright notice, 10 // this list of conditions and the following disclaimer in the documentation 11 // and/or other materials provided with the distribution. 12 // 13 // 3. The end-user documentation included with the redistribution, if any, must 14 // include the following acknowledgment: 15 // 16 // "This product includes software developed by IAIK of Graz University of 17 // Technology." 18 // 19 // Alternately, this acknowledgment may appear in the software itself, if and 20 // wherever such third-party acknowledgments normally appear. 21 // 22 // 4. The names "Graz University of Technology" and "IAIK of Graz University of 23 // Technology" must not be used to endorse or promote products derived from this 24 // software without prior written permission. 25 // 26 // 5. Products derived from this software may not be called "IAIK PKCS Wrapper", 27 // nor may "IAIK" appear in their name, without prior written permission of 28 // Graz University of Technology. 29 // 30 // THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED 31 // WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 32 // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 33 // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE LICENSOR BE 34 // LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, 35 // OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 36 // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, 37 // OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 38 // ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 39 // OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 40 // OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 41 // POSSIBILITY OF SUCH DAMAGE. 42 43 package demo.pkcs.pkcs11.wrapper.basics; 44 45 import iaik.pkcs.pkcs11.Module; 46 import iaik.pkcs.pkcs11.Session; 47 import iaik.pkcs.pkcs11.SessionInfo; 48 import iaik.pkcs.pkcs11.State; 49 import iaik.pkcs.pkcs11.Token; 50 import iaik.pkcs.pkcs11.TokenException; 51 import iaik.pkcs.pkcs11.objects.Object; 52 53 import java.io.BufferedReader; 54 import java.io.IOException; 55 import java.io.InputStreamReader; 56 import java.io.PrintWriter; 57 import java.util.Hashtable; 58 59 import demo.pkcs.pkcs11.wrapper.util.Util; 60 61 /** 62 * This demo program allows to delete certain objects on a certain token. It 63 * allows the user to select a token. Thereafter, it displays the objects on 64 * that token and lets the user select one of them to delete it. 65 * 66 * @author <a href="mailto:Karl.Scheibelhofer@iaik.at"> Karl Scheibelhofer </a> 67 * @version 0.1 68 * @invariants 69 */ 70 public class DeleteObject { 71 72 static PrintWriter output_; 73 74 static BufferedReader input_; 75 76 static { 77 try { 78 //output_ = new PrintWriter(new FileWriter("GetInfo_output.txt"), true); 79 output_ = new PrintWriter(System.out, true); 80 input_ = new BufferedReader(new InputStreamReader(System.in)); 81 } catch (Throwable thr) { 82 thr.printStackTrace(); 83 output_ = new PrintWriter(System.out, true); 84 input_ = new BufferedReader(new InputStreamReader(System.in)); 85 } 86 } 87 main(String[] args)88 public static void main(String[] args) 89 throws TokenException, IOException 90 { 91 if (args.length < 1) { 92 printUsage(); 93 System.exit(1); 94 } 95 96 Module pkcs11Module = Module.getInstance(args[0]); 97 pkcs11Module.initialize(null); 98 99 Token token; 100 if (1 < args.length) token = Util.selectToken(pkcs11Module, output_, input_, args[1]); 101 else token = Util.selectToken(pkcs11Module, output_, input_); 102 if (token == null) { 103 output_.println("We have no token to proceed. Finished."); 104 output_.flush(); 105 System.exit(0); 106 } 107 108 Session session; 109 if (2 < args.length) session = Util.openAuthorizedSession(token, 110 Token.SessionReadWriteBehavior.RW_SESSION, output_, input_, args[2]); 111 else session = Util.openAuthorizedSession(token, 112 Token.SessionReadWriteBehavior.RW_SESSION, output_, input_, null); 113 114 SessionInfo sessionInfo = session.getSessionInfo(); 115 output_.println("using session:"); 116 output_.println(sessionInfo); 117 118 output_.println("listing all" 119 + (((sessionInfo.getState() == State.RO_USER_FUNCTIONS) || (sessionInfo 120 .getState() == State.RW_SO_FUNCTIONS)) ? "" : " public") 121 + " objects on token with ID " + token.getTokenID()); 122 output_ 123 .println("________________________________________________________________________________"); 124 125 // limits the automatic deletion loop to one if argument "auto" is given 126 boolean bot_state = true; 127 128 deleteLoop: while (true) { 129 session.findObjectsInit(null); 130 Object[] objects = session.findObjects(1); 131 Hashtable objectHandleToObject = new Hashtable(10); 132 133 int limit = 0, counter = 0; 134 if (3 < args.length) limit = 2; 135 136 while (objects.length > 0 && (0 == limit || counter < limit)) { 137 output_ 138 .println("--------------------------------------------------------------------------------"); 139 long objectHandle = objects[0].getObjectHandle(); 140 objectHandleToObject.put(new Long(objectHandle), objects[0]); 141 output_.println("Object with handle: " + objectHandle); 142 output_.println(objects[0]); 143 output_ 144 .println("--------------------------------------------------------------------------------"); 145 objects = session.findObjects(1); 146 counter++; 147 } 148 session.findObjectsFinal(); 149 150 output_ 151 .println("________________________________________________________________________________"); 152 output_ 153 .println("################################################################################"); 154 155 Object selectedObject = null; 156 Long selectedObjectHandle; 157 if (objectHandleToObject.isEmpty()) { 158 output_.println("There are no objects on the token."); 159 break deleteLoop; 160 } else { 161 boolean gotObjectHandle = false; 162 while (!gotObjectHandle) { 163 output_.print("Enter the handle of the object to delete or 'x' to exit: "); 164 output_.flush(); 165 String objectHandleString; 166 if (3 < args.length) { 167 if (bot_state) { 168 objectHandleString = objectHandleToObject.keys().nextElement().toString(); 169 bot_state = false; 170 } else { 171 objectHandleString = "x"; 172 } 173 output_.println(objectHandleString); 174 } else { 175 objectHandleString = input_.readLine(); 176 } 177 if (objectHandleString.equalsIgnoreCase("x")) { 178 break deleteLoop; 179 } 180 try { 181 selectedObjectHandle = new Long(objectHandleString); 182 selectedObject = (Object) objectHandleToObject.get(selectedObjectHandle); 183 if (selectedObject != null) { 184 gotObjectHandle = true; 185 } else { 186 output_.println("An object with the handle \"" + objectHandleString 187 + "\" does not exist. Try again."); 188 } 189 } catch (NumberFormatException ex) { 190 output_.println("The entered handle \"" + objectHandleString 191 + "\" is invalid. Try again."); 192 } 193 } 194 } 195 196 output_.println("Going to delete this object: "); 197 output_.println(selectedObject); 198 output_.println(); 199 output_ 200 .print("Are you sure that you want to DELETE this object permanently? [yes/no] "); 201 output_.flush(); 202 String answer; 203 if (3 < args.length) { 204 answer = "yes"; 205 output_.println(answer); 206 } else answer = input_.readLine(); 207 if (answer.equalsIgnoreCase("yes")) { 208 session.destroyObject(selectedObject); 209 output_.println("Object deleted."); 210 } 211 } 212 session.closeSession(); 213 pkcs11Module.finalize(null); 214 } 215 printUsage()216 protected static void printUsage() { 217 output_.println("DeleteObject <PKCS#11 module name> [<slot>] [<pin>] [auto]"); 218 output_.println("e.g.: DeleteObject pk2priv.dll"); 219 } 220 221 } 222