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Jan Dittberner 2014-10-12 14:23:08 +02:00
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src/test/java/info/dittberner/bcsmime_demo/EncryptDecryptTest.java Normal file
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/*
* Copyright (c) 2011 Jan Dittberner
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package info.dittberner.bcsmime_demo;
import junit.framework.TestCase;
import org.bouncycastle.asn1.x500.X500Name;
import org.bouncycastle.asn1.x509.*;
import org.bouncycastle.cert.CertIOException;
import org.bouncycastle.cert.X509CertificateHolder;
import org.bouncycastle.cert.X509v3CertificateBuilder;
import org.bouncycastle.cert.jcajce.JcaX509CertificateConverter;
import org.bouncycastle.cert.jcajce.JcaX509v3CertificateBuilder;
import org.bouncycastle.jce.provider.BouncyCastleProvider;
import org.bouncycastle.operator.ContentSigner;
import org.bouncycastle.operator.OperatorCreationException;
import org.bouncycastle.operator.jcajce.JcaContentSignerBuilder;
import javax.mail.BodyPart;
import javax.mail.Message.RecipientType;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.Session;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
import java.io.IOException;
import java.math.BigInteger;
import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.KeyStore;
import java.security.Security;
import java.security.cert.Certificate;
import java.security.cert.CertificateException;
import java.util.Date;
/**
* Test Encryption and Decryption.
*
* @author Jan Dittberner &lt;<a href=
* "mailto:jan.dittberner@t-systems.com>jan.dittberner@t-systems.com</a>
* & g t ;
*/
public class EncryptDecryptTest extends TestCase {
String[][] testEntries = new String[][]{
new String[]{"test1", "testrecpt1@example.org", "Test Recipient 1"},
new String[]{"test2", "testrecpt2@example.org", "Test Recipient 2"}
};
private KeyStore keystore;
private class KeyEntryData {
private final X509CertificateHolder certificateHolder;
KeyPair keyPair;
private KeyEntryData(KeyPairGenerator kpg, String address) throws CertIOException, OperatorCreationException {
this.keyPair = kpg.generateKeyPair();
X500Name issuer = new X500Name(
String.format("CN=Test Recipient,emailAddress=%s", address));
//noinspection UnnecessaryLocalVariable
X500Name subject = issuer;
X509v3CertificateBuilder certificateBuilder = new JcaX509v3CertificateBuilder(
issuer, BigInteger.valueOf(System.currentTimeMillis()),
new Date(System.currentTimeMillis() - 50000), new Date(
System.currentTimeMillis() + 50000), subject,
keyPair.getPublic());
certificateBuilder.addExtension(Extension.basicConstraints, true,
new BasicConstraints(true));
certificateBuilder.addExtension(Extension.keyUsage, true,
new KeyUsage(KeyUsage.digitalSignature
| KeyUsage.keyEncipherment));
certificateBuilder.addExtension(Extension.extendedKeyUsage, true,
new ExtendedKeyUsage(KeyPurposeId.id_kp_emailProtection));
certificateBuilder.addExtension(Extension.subjectAlternativeName,
false, new GeneralNames(new GeneralName(
GeneralName.rfc822Name, address)));
ContentSigner signer = new JcaContentSignerBuilder("SHA256WithRSA")
.build(keyPair.getPrivate());
this.certificateHolder = certificateBuilder.build(signer);
}
private Certificate getCertificate() throws CertificateException, CertIOException, OperatorCreationException {
return (new JcaX509CertificateConverter()).getCertificate(certificateHolder);
}
}
/**
* {@inheritDoc}
*
* @see junit.framework.TestCase#setUp()
*/
@Override
public void setUp() throws Exception {
if (Security.getProvider(BouncyCastleProvider.PROVIDER_NAME) == null) {
Security.addProvider(new BouncyCastleProvider());
}
if (this.keystore == null) {
this.keystore = KeyStore.getInstance("JKS");
keystore.load(null, null);
KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA");
kpg.initialize(2048);
for (String[] entry : testEntries) {
KeyEntryData keyEntryData = new KeyEntryData(kpg, entry[1]);
keystore.setKeyEntry(entry[0], keyEntryData.keyPair.getPrivate(), "changeit".toCharArray(), new Certificate[]{keyEntryData.getCertificate()});
}
}
}
/**
* Test of {@link SMIMEEncrypt} and {@link SMIMEDecrypt}.
*/
public void testEncryptDecryptMail() throws Exception {
MimeMessage message = getNewMultipartMessage();
assertNotNull(message);
SMIMEEncrypt encrypt = new SMIMEEncrypt(keystore);
MimeMessage encrypted = encrypt.encryptMessage(message);
assertNotNull(encrypted);
encrypted.writeTo(System.err);
SMIMEDecrypt decrypt = new SMIMEDecrypt(keystore);
MimeMessage decrypted = decrypt.decryptMessage(encrypted);
assertNotNull(decrypted);
decrypted.writeTo(System.err);
}
/**
* Creates a new MimeMessage with one body part.
*
* @return MimeMessage instance
* @throws MessagingException on error creating the message
*/
private MimeMessage getNewMultipartMessage() throws MessagingException,
IOException {
MimeMessage message = new MimeMessage(Session.getDefaultInstance(System
.getProperties()));
message.setFrom(new InternetAddress("testsender@example.org",
"Test Sender"));
for (String[] entry : testEntries) {
message.addRecipient(RecipientType.TO, new InternetAddress(entry[1], entry[2]));
}
message.setSubject("Test subject");
Multipart multipart = new MimeMultipart();
BodyPart textPart = new MimeBodyPart();
textPart.setText("Das ist ein Text");
multipart.addBodyPart(textPart);
message.setContent(multipart);
return message;
}
}