Java tutorial
/** * Copyright 2007 Cordys R&D B.V. * * This file is part of the Cordys Email IO Connector. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.cordys.coe.test.smime; import java.io.ByteArrayInputStream; import java.io.ByteArrayOutputStream; import java.security.PrivateKey; import java.security.Security; import java.security.cert.CertStore; import java.security.cert.CollectionCertStoreParameters; import java.security.cert.X509Certificate; import java.util.ArrayList; import java.util.Date; import java.util.List; import java.util.Properties; import javax.activation.CommandMap; import javax.activation.MailcapCommandMap; import javax.mail.Message; import javax.mail.Session; import javax.mail.Transport; import javax.mail.internet.InternetAddress; import javax.mail.internet.MimeBodyPart; import javax.mail.internet.MimeMessage; import javax.mail.internet.MimeMultipart; import org.bouncycastle.asn1.ASN1EncodableVector; import org.bouncycastle.asn1.cms.AttributeTable; import org.bouncycastle.asn1.cms.IssuerAndSerialNumber; import org.bouncycastle.asn1.smime.SMIMECapabilitiesAttribute; import org.bouncycastle.asn1.smime.SMIMECapability; import org.bouncycastle.asn1.smime.SMIMECapabilityVector; import org.bouncycastle.asn1.smime.SMIMEEncryptionKeyPreferenceAttribute; import org.bouncycastle.asn1.x509.X509Name; import org.bouncycastle.jce.provider.BouncyCastleProvider; import org.bouncycastle.mail.smime.SMIMEEnvelopedGenerator; import org.bouncycastle.mail.smime.SMIMESignedGenerator; import com.cordys.coe.ac.emailio.keymanager.ICertificateInfo; import com.cordys.coe.ac.emailio.keymanager.IKeyManager; import com.cordys.coe.ac.emailio.keymanager.KeyManagerFactory; import com.eibus.util.logger.CordysLogger; import com.eibus.util.logger.config.LoggerConfigurator; import com.eibus.xml.nom.Document; /** * DOCUMENTME. * * @author $author$ */ public class TestSendEncryptedAndSignedMessage { /** * Holds the logger to use. */ private static final CordysLogger LOG = CordysLogger.getCordysLogger(TestSendEncryptedAndSignedMessage.class); /** * NOM Document. */ private static final Document DOC = new Document(); /** * Holds the key manager. */ private IKeyManager m_km; /** * Main method. * * @param saArguments The commandline arguments. */ public static void main(String[] saArguments) { try { TestSendEncryptedAndSignedMessage p = new TestSendEncryptedAndSignedMessage(); p.setup(); p.loadKeystore(); p.sendMessage(); } catch (Exception e) { e.printStackTrace(); } } /** * Initialize the logger. */ public void setup() { LoggerConfigurator.initLogger("../InboudEmailConnector_main/test/Log4jConfiguration.xml"); } /** * Loads the keystores. * * @throws Exception InternalSMIMEException In case of exceptions. */ private void loadKeystore() throws Exception { int iNode = DOC.load(".\\test\\java\\com\\cordys\\coe\\test\\smime\\keymanager.xml"); m_km = KeyManagerFactory.createKeyManager(null, iNode); } /** * This method sends the message to the receiver. * * @throws Exception DOCUMENTME */ private void sendMessage() throws Exception { final InternetAddress[] RECEIVER_ADDRESS = new InternetAddress[] { new InternetAddress("outlook2007@ces70.cordys.com", "Outlook 2007 User"), new InternetAddress("outlookexpress@ces70.cordys.com", "Outlook Express User"), new InternetAddress("thunderbird@ces70.cordys.com", "Thunderbird User"), new InternetAddress("cordystestuser1@ces70.cordys.com", "Cordys Test User 1"), new InternetAddress("cordystestuser2@ces70.cordys.com", "Cordys Test User 2") }; final InternetAddress SENDER_ADDRESS = new InternetAddress("testprogram@ces70.cordys.com", "Test Program User"); String sSubject = "From test progam V1 [S&E] No r"; boolean bDoEncryption = true; // String sContent = "Single line"+System.getProperty("line.separator")+"SecondLine"; String sContent = "Single line\nSecondLine"; // Add capabilities. MailcapCommandMap mailcap = (MailcapCommandMap) CommandMap.getDefaultCommandMap(); mailcap.addMailcap( "application/pkcs7-signature;; x-java-content-handler=org.bouncycastle.mail.smime.handlers.pkcs7_signature"); mailcap.addMailcap( "application/pkcs7-mime;; x-java-content-handler=org.bouncycastle.mail.smime.handlers.pkcs7_mime"); mailcap.addMailcap( "application/x-pkcs7-signature;; x-java-content-handler=org.bouncycastle.mail.smime.handlers.x_pkcs7_signature"); mailcap.addMailcap( "application/x-pkcs7-mime;; x-java-content-handler=org.bouncycastle.mail.smime.handlers.x_pkcs7_mime"); mailcap.addMailcap( "multipart/signed;; x-java-content-handler=org.bouncycastle.mail.smime.handlers.multipart_signed"); CommandMap.setDefaultCommandMap(mailcap); /* Add BC */ Security.addProvider(new BouncyCastleProvider()); /* Get the private key to sign the message with */ ICertificateInfo certInfo = m_km.getCertificateInfo(SENDER_ADDRESS.getAddress()); if (certInfo == null) { throw new Exception("cannot find private key for email address " + SENDER_ADDRESS); } /* Create the message to sign and encrypt */ Properties props = System.getProperties(); props.put("mail.smtp.host", "srv-nl-ces70"); Session session = Session.getDefaultInstance(props, null); MimeMessage body = new MimeMessage(session); body.setContent(sContent, "text/plain"); body.saveChanges(); /* Create the SMIMESignedGenerator */ SMIMECapabilityVector capabilities = new SMIMECapabilityVector(); capabilities.addCapability(SMIMECapability.dES_EDE3_CBC); capabilities.addCapability(SMIMECapability.rC2_CBC, 128); capabilities.addCapability(SMIMECapability.dES_CBC); X509Certificate cert = certInfo.getX509Certificate(); ASN1EncodableVector attributes = new ASN1EncodableVector(); X509Name name = new X509Name(cert.getIssuerDN().getName()); IssuerAndSerialNumber issuerAndSerialNumber = new IssuerAndSerialNumber(name, cert.getSerialNumber()); SMIMEEncryptionKeyPreferenceAttribute encryptionKeyPreferenceAttribute = new SMIMEEncryptionKeyPreferenceAttribute( issuerAndSerialNumber); attributes.add(encryptionKeyPreferenceAttribute); attributes.add(new SMIMECapabilitiesAttribute(capabilities)); SMIMESignedGenerator signer = new SMIMESignedGenerator(); signer.addSigner((PrivateKey) certInfo.getKey(), cert, "DSA".equals(certInfo.getKey().getAlgorithm()) ? SMIMESignedGenerator.DIGEST_SHA1 : SMIMESignedGenerator.DIGEST_MD5, new AttributeTable(attributes), null); /* Add the list of certs to the generator */ List<X509Certificate> certList = new ArrayList<X509Certificate>(); certList.add(cert); CertStore certs = CertStore.getInstance("Collection", new CollectionCertStoreParameters(certList), "BC"); signer.addCertificatesAndCRLs(certs); /* Sign the message */ MimeMultipart mm = signer.generate(body, "BC"); MimeMessage signedMessage = new MimeMessage(session); /* Set the content of the signed message */ signedMessage.setContent(mm); signedMessage.saveChanges(); /* Create the encrypter */ if (bDoEncryption) { SMIMEEnvelopedGenerator encrypter = new SMIMEEnvelopedGenerator(); for (InternetAddress ia : RECEIVER_ADDRESS) { ICertificateInfo ciTemp = m_km.getCertificateInfo(ia.getAddress()); if (ciTemp != null) { encrypter.addKeyTransRecipient(ciTemp.getX509Certificate()); } else if (LOG.isDebugEnabled()) { LOG.debug("No certificate found for " + ia.toString()); } } /* Encrypt the message */ MimeBodyPart encryptedPart = encrypter.generate(signedMessage, SMIMEEnvelopedGenerator.DES_EDE3_CBC, "BC"); /* * Create a new MimeMessage that contains the encrypted and signed content */ ByteArrayOutputStream out = new ByteArrayOutputStream(); encryptedPart.writeTo(out); body = new MimeMessage(session, new ByteArrayInputStream(out.toByteArray())); } else { body = signedMessage; } body.setFrom(SENDER_ADDRESS); body.setRecipients(Message.RecipientType.TO, RECEIVER_ADDRESS); body.addRecipient(Message.RecipientType.TO, new InternetAddress("intermediate@ces70.cordys.com", "Intermediate user")); body.setSentDate(new Date()); body.addHeader("User-Agent", "CordysMailClient"); body.setSubject(sSubject); Transport.send(body); } }