Sending an encrypted mail with javamail using PGP

Question

I've an error when i try to encrypt a mail using PGP

The error:

**java.security.NoSuchProviderException: No provider configured for PGP**
at    net.suberic.crypto.EncryptionManager.getEncryptionUtils(EncryptionManager.java:106)
at    tools.Encryption.encrypt(Encryption.java:29)
at    core.mails.HtmlSeriesUploadingMail.sendMail(HtmlSeriesUploadingMail.java:93)
at    core.services.MailService.run(MailService.java:71)
at    java.lang.Thread.run(Unknown Source)

I saw that i need some library in my classpath so here is my classpath:

<?xml version="1.0" encoding="UTF-8"?>
<classpath>
<classpathentry kind="src" path="src"/>
<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.7"/>
<classpathentry kind="lib" path="lib/mail.jar"/>
<classpathentry kind="lib" path="lib/wrapper.jar"/>
<classpathentry kind="lib" path="lib/mysql.jar"/>
<classpathentry kind="lib" path="lib/pd4ml.jar"/>
<classpathentry kind="lib" path="lib/ini4j-0.5.1.jar"/>
<classpathentry kind="lib" path="lib/jdom-2.0.4.jar"/>
<classpathentry kind="lib" path="lib/bcmail-jdk14-139.jar"/>
<classpathentry kind="lib" path="lib/bcprov-jdk14-139.jar"/>
<classpathentry kind="lib" path="lib/javamail-crypto_060622.jar"/>
<classpathentry kind="lib" path="lib/javamail-crypto-bouncycastle-smime.jar"/>
<classpathentry kind="lib" path="lib/ss_css2.jar"/>
<classpathentry kind="lib" path="lib/certpath-api-compat.jar"/>
<classpathentry kind="lib" path="lib/cryptix-message-api.jar"/>
<classpathentry kind="lib" path="lib/cryptix-openpgp-provider.jar"/>
<classpathentry kind="lib" path="lib/cryptix-pki-api.jar"/>
<classpathentry kind="lib" path="lib/cryptix-jce-provider-2.1.jar"/>
<classpathentry kind="output" path="bin"/>
</classpath>

And here's my code to encrypt:

   public MimeMessage encrypt(Session session, MimeMessage mimeMessage, InternetAddress recipient) throws Exception {
      // get the PGP EncryptionUtilities
      EncryptionUtils pgpUtils = EncryptionManager.getEncryptionUtils(EncryptionManager.PGP);
      // load the PGP keystore from the given file.
      EncryptionKeyManager pgpKeyMgr = pgpUtils.createKeyManager();
      pgpKeyMgr.loadPublicKeystore(new FileInputStream(new File(SystemData.getWatchDogConfig() + "test.asc")), null);
      // get the PGP public key for encryption
      java.security.Key pgpKey = pgpKeyMgr.getPublicKey((String) pgpKeyMgr.publicKeyAliases().iterator().next());
      // encrypt the message
      return pgpUtils.encryptMessage(session, mimeMessage, pgpKey);
   }

I don't know what i should do... I begin with javamail and bouncycastle.

Answer 1

The exception NoSuchProviderException is thrown by EncryptionManager when it cannot find the provider specified in getEncryptionUtils. The providers are loaded statically in EncryptionManager class by retrieving them from the file META-INF/javamail-crypto.providers. So, in order for EncryptionManager to load PGP provider you will have to add a javamail-crypto.providers file into your META-INF folder with the following line:

protocol=PGP;class=net.suberic.crypto.PGPEncryptionUtils