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.FileOutputStream; 047 048 import iaik.pkcs.pkcs11.Module; 049 import iaik.pkcs.pkcs11.Session; 050 import iaik.pkcs.pkcs11.Slot; 051 import iaik.pkcs.pkcs11.Token; 052 053 054 055 /** 056 * This demo program uses a PKCS#11 module to produce random data. 057 * Optionally the random data can be written to file. 058 * 059 * @author <a href="mailto:Karl.Scheibelhofer@iaik.at"> Karl Scheibelhofer </a> 060 * @version 0.1 061 * @invariants 062 */ 063 public class GenerateRandom { 064 065 public static void main(String[] args) { 066 if ((args.length != 2) && (args.length != 3)) { 067 printUsage(); 068 System.exit(1); 069 } 070 int numberOfBytes = -1; 071 try { 072 numberOfBytes = Integer.parseInt(args[1]); 073 } catch (Exception ex) { 074 printUsage(); 075 System.exit(1); 076 } 077 078 try { 079 080 Module pkcs11Module = Module.getInstance(args[0]); 081 pkcs11Module.initialize(null); 082 083 Slot[] slots = pkcs11Module.getSlotList(Module.SlotRequirement.TOKEN_PRESENT); 084 085 if (slots.length == 0) { 086 System.out.println("No slot with present token found!"); 087 System.exit(0); 088 } 089 090 Slot selectedSlot = slots[0]; 091 Token token = selectedSlot.getToken(); 092 093 Session session = 094 token.openSession(Token.SessionType.SERIAL_SESSION, Token.SessionReadWriteBehavior.RO_SESSION, null, null); 095 096 System.out.println("################################################################################"); 097 System.out.print("generating " + numberOfBytes + " bytes of random data... "); 098 099 byte[] dataBuffer = session.generateRandom(numberOfBytes); 100 101 System.out.println("finished"); 102 System.out.println("################################################################################"); 103 104 105 if (args.length == 3) { 106 System.out.println("################################################################################"); 107 System.out.println("writing random data to file : " + args[2]); 108 109 FileOutputStream dataOutput = new FileOutputStream(args[2]); 110 dataOutput.write(dataBuffer); 111 dataOutput.flush(); 112 dataOutput.close(); 113 System.out.println("################################################################################"); 114 } 115 116 session.closeSession(); 117 pkcs11Module.finalize(null); 118 119 } catch (Throwable thr) { 120 thr.printStackTrace(); 121 } 122 } 123 124 public static void printUsage() { 125 System.out.println("Usage: GenerateRandom <PKCS#11 module> <number of bytes> [<output file>]"); 126 System.out.println(" e.g.: GenerateRandom pk2priv.dll 128 random.dat"); 127 System.out.println("The given DLL must be in the search path of the system."); 128 } 129 130 }