Re: Exception in thread "main" java.lang.NoClassDefFoundError: org/bouncycastle/jcajce/util/JcaJceHelper

On Wed, Jun 13, 2018 at 4:53 PM, Russell Haley <[email protected]> wrote:

> Hi,
>
> I'm relatively new to Java so I'm unsure if this is a mistake on my part
> or not. I have been using the example code to build out a utility that
> signs files and puts the signature in a ZipEntry comment for validation. At
> this point I'm just trying to generate a keypair and I'm getting the
> following error:
>
> Exception in thread "main" java.lang.NoClassDefFoundError:
> org/bouncycastle/jcajce/util/JcaJceHelper
> at com.telarraydiagnostics.ova.alpha.scripts.BatchScriptManager.
> exportKeyPair(BatchScriptManager.java:228)
> at com.telarraydiagnostics.ova.alpha.scripts.BatchScriptManager.doOpts(
> BatchScriptManager.java:167)
> at com.telarraydiagnostics.ova.alpha.scripts.BatchScriptManager.main(
> BatchScriptManager.java:131)
> Caused by: java.lang.ClassNotFoundException: org.bouncycastle.jcajce.util.
> JcaJceHelper
> at java.net.URLClassLoader.findClass(Unknown Source)
> at java.lang.ClassLoader.loadClass(Unknown Source)
> at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
> at java.lang.ClassLoader.loadClass(Unknown Source)
> ... 3 more
>
>
> My function is a copy/paste of the RSAKeyPairGenerator.exportKeyPair
> function. The troubled code is in RSAKeyPairGenerator.java on line 53. I
> downloaded the sources for bcpg-jdk15on-159.jar and there doesn't seem to
> be any jcajce or util folder and no sign of a JcaJceHelper class at all?
>
> Any input would be great.
>
Okay, more digging shows that the jcajce stuff is in the bcprov jar file. I
have since added bcprov-jdk15on-159.jar and bcprov-ext-jdk15on-159.jar to
my classpath. However, I am getting an error "cannot create cipher: No such
provider: BC" from the following code:

             PGPSecretKey        secretKey = new
PGPSecretKey(PGPSignature.DEFAULT_CERTIFICATION, keyPair, identity,
sha1Digest, null, null,
            new
JcaPGPContentSignerBuilder(keyPair.getPublicKey().getAlgorithm(),
HashAlgorithmTags.SHA1),
            new JcePBESecretKeyEncryptorBuilder(PGPEncryptedData.CAST5,
sha1Digest).setProvider("BC").build(pas

I'll have another look at this in the morning, but any help would still be
grand.

Thanks again,
Russ

>
> Thanks for the wonderful library. I look forward to putting it to great
> use.
>
> Russ
>