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.ByteArrayOutputStream;
048 import java.io.FileInputStream;
049 import java.io.FileOutputStream;
050 import java.io.InputStream;
051 import java.io.InputStreamReader;
052 import java.io.OutputStream;
053 import java.io.PrintWriter;
054 import java.security.MessageDigest;
055 import java.util.Arrays;
056 import java.util.List;
057
058 import iaik.asn1.ASN;
059 import iaik.asn1.ASN1Object;
060 import iaik.asn1.DerCoder;
061 import iaik.asn1.OCTET_STRING;
062 import iaik.asn1.ObjectID;
063 import iaik.asn1.structures.AlgorithmID;
064 import iaik.asn1.structures.Attribute;
065 import iaik.asn1.structures.ChoiceOfTime;
066 import iaik.pkcs.pkcs11.Mechanism;
067 import iaik.pkcs.pkcs11.MechanismInfo;
068 import iaik.pkcs.pkcs11.Module;
069 import iaik.pkcs.pkcs11.Session;
070 import iaik.pkcs.pkcs11.Token;
071 import iaik.pkcs.pkcs11.objects.PrivateKey;
072 import iaik.pkcs.pkcs11.objects.RSAPrivateKey;
073 import iaik.pkcs.pkcs11.objects.X509PublicKeyCertificate;
074 import iaik.pkcs.pkcs7.DigestInfo;
075 import iaik.pkcs.pkcs7.IssuerAndSerialNumber;
076 import iaik.pkcs.pkcs7.SignedData;
077 import iaik.pkcs.pkcs7.SignerInfo;
078 import iaik.x509.X509Certificate;
079
080
081
082 /**
083 * Creates a signature on a token. The hash is calculated outside the token.
084 * The signed data and the signature are encoded into a PKCS#7 signed data
085 * object. This implementation just uses raw RSA.
086 *
087 * @author <a href="mailto:Karl.Scheibelhofer@iaik.at"> Karl Scheibelhofer </a>
088 * @version 0.1
089 * @invariants
090 */
091 public class SignPKCS7 {
092
093 static PrintWriter output_;
094
095 static BufferedReader input_;
096
097 static {
098 try {
099 //output_ = new PrintWriter(new FileWriter("GetInfo_output.txt"), true);
100 output_ = new PrintWriter(System.out, true);
101 input_ = new BufferedReader(new InputStreamReader(System.in));
102 } catch (Throwable thr) {
103 thr.printStackTrace();
104 output_ = new PrintWriter(System.out, true);
105 input_ = new BufferedReader(new InputStreamReader(System.in));
106 }
107 }
108
109 public static void main(String[] args) {
110 if (args.length != 3) {
111 printUsage();
112 System.exit(1);
113 }
114
115 try {
116
117 Module pkcs11Module = Module.getInstance(args[0]);
118 pkcs11Module.initialize(null);
119
120 Token token = Util.selectToken(pkcs11Module, output_, input_);
121 if (token == null) {
122 output_.println("We have no token to proceed. Finished.");
123 output_.flush();
124 System.exit(0);
125 }
126
127 List supportedMechanisms = Arrays.asList(token.getMechanismList());
128 if (!supportedMechanisms.contains(Mechanism.RSA_PKCS)) {
129 output_.print("This token does not support raw RSA signing!");
130 output_.flush();
131 System.exit(0);
132 } else {
133 MechanismInfo rsaMechanismInfo = token.getMechanismInfo(Mechanism.RSA_PKCS);
134 if (!rsaMechanismInfo.isSign()) {
135 output_.print("This token does not support RSA signing according to PKCS!");
136 output_.flush();
137 System.exit(0);
138 }
139 }
140
141 Session session = Util.openAuthorizedSession(token, Token.SessionReadWriteBehavior.RO_SESSION, output_, input_);
142
143 // first we search for private RSA keys that we can use for signing
144 RSAPrivateKey privateSignatureKeyTemplate = new RSAPrivateKey();
145 privateSignatureKeyTemplate.getSign().setBooleanValue(Boolean.TRUE);
146
147 KeyAndCertificate selectedSignatureKeyAndCertificate =
148 Util.selectKeyAndCertificate(session, privateSignatureKeyTemplate, output_, input_);
149 if (selectedSignatureKeyAndCertificate == null) {
150 output_.println("We have no signature key to proceed. Finished.");
151 output_.flush();
152 System.exit(0);
153 }
154
155 PrivateKey selectedSignatureKey = (PrivateKey) selectedSignatureKeyAndCertificate.getKey();
156 X509PublicKeyCertificate pkcs11SignerCertificate = selectedSignatureKeyAndCertificate.getCertificate();
157 X509Certificate signerCertificate = (pkcs11SignerCertificate != null)
158 ? new X509Certificate(pkcs11SignerCertificate.getValue().getByteArrayValue())
159 : null;
160
161 // here the interesting code starts
162
163 output_.println("################################################################################");
164 output_.println("signing data from file: " + args[1]);
165
166 InputStream dataInputStream = new FileInputStream(args[1]);
167
168 // we do digesting outside the card, because some cards do not support on-card hashing
169 MessageDigest digestEngine = MessageDigest.getInstance("SHA-1");
170
171 // we buffer the content to have it after hashing for the PKCS#7 content
172 ByteArrayOutputStream contentBuffer = new ByteArrayOutputStream();
173 byte[] dataBuffer = new byte[1024];
174 byte[] helpBuffer;
175 int bytesRead;
176
177 // feed all data from the input stream to the message digest
178 while ((bytesRead = dataInputStream.read(dataBuffer)) >= 0) {
179 // hash the data
180 digestEngine.update(dataBuffer, 0, bytesRead);
181 // and buffer the data
182 contentBuffer.write(dataBuffer, 0, bytesRead);
183 }
184 byte[] contentHash = digestEngine.digest();
185 contentBuffer.close();
186
187 // create the SignedData
188 SignedData signedData = new SignedData(contentBuffer.toByteArray(), SignedData.IMPLICIT);
189 // set the certificates
190 signedData.setCertificates(new X509Certificate[] { signerCertificate });
191
192 // create a new SignerInfo
193 SignerInfo signerInfo = new SignerInfo(new IssuerAndSerialNumber(signerCertificate), AlgorithmID.sha1, null);
194
195 // define the authenticated attributes
196 iaik.asn1.structures.Attribute[] authenticatedAttributes = {
197 new Attribute(ObjectID.contentType, new ASN1Object[] {ObjectID.pkcs7_data}),
198 new Attribute(ObjectID.signingTime, new ASN1Object[] {new ChoiceOfTime().toASN1Object()}),
199 new Attribute(ObjectID.messageDigest, new ASN1Object[] {new OCTET_STRING(contentHash)})
200 };
201 // set the authenticated attributes
202 signerInfo.setAuthenticatedAttributes(authenticatedAttributes);
203
204 // encode the authenticated attributes, which is the data that we must sign
205 byte[] toBeSigned = DerCoder.encode(ASN.createSetOf(authenticatedAttributes, true));
206
207
208 // we do digesting outside the card, because some cards do not support on-card hashing
209 // we can use the digest engine from above
210 byte[] hashToBeSigned = digestEngine.digest(toBeSigned);
211
212 // according to PKCS#11 building the DigestInfo structure must be done off-card
213 DigestInfo digestInfoEngine = new DigestInfo(AlgorithmID.sha1, hashToBeSigned);
214
215 byte[] toBeEncrypted = digestInfoEngine.toByteArray();
216
217
218 // initialize for signing
219 session.signInit(Mechanism.RSA_PKCS, selectedSignatureKey);
220
221 // sign the data to be signed
222 byte[] signatureValue = session.sign(toBeEncrypted);
223
224 // set the signature value in the signer info
225 signerInfo.setEncryptedDigest(signatureValue);
226
227 // and add the signer info object to the PKCS#7 signed data object
228 signedData.addSignerInfo(signerInfo);
229
230 output_.println("Writing signature to file: " + args[2]);
231
232 OutputStream signatureOutput = new FileOutputStream(args[2]);
233 signedData.writeTo(signatureOutput);
234 signatureOutput.flush();
235 signatureOutput.close();
236
237 output_.println("################################################################################");
238
239 session.closeSession();
240 pkcs11Module.finalize(null);
241
242 } catch (Throwable thr) {
243 thr.printStackTrace();
244 } finally {
245 output_.close();
246 }
247 }
248
249 public static void printUsage() {
250 output_.println("Usage: SignPKCS7 <PKCS#11 module> <file to be signed> <PKCS#7 signed data file>");
251 output_.println(" e.g.: SignPKCS7 pk2priv.dll data.dat signedData.p7");
252 output_.println("The given DLL must be in the search path of the system.");
253 }
254
255 }