Unable to Perform PGP Encryption with specific key

Issue

• An exception is being thrown while encrypting with the following key as we moved from jboss-fuse-6.1.0.redhat-379 to jboss-fuse-6.2.1.redhat-084

pub   1024D/C3CE625C 2015-09-15 [expires: 2019-09-14]
uid                  Test ABC EDF GHI KGL PGP DSS 2015 <test@testcase.com>
sub   2048g/3253BCD6 2015-09-15 [expires: 2019-09-14]

• Following is the code snippet for encryption (inside the configure method of a RouteBuilder) -

        PGPDataFormat pgpSignAndEncrypt = new PGPDataFormat();
        pgpSignAndEncrypt.setKeyFileName("file:/path/to/public_ring.gpg");
        pgpSignAndEncrypt.setKeyUserid("test@testcase.com");
        from("file:a/b/c/d").marshal(someData).to("file:data/output");

• Throws following exception

org.bouncycastle.openpgp.PGPException: exception constructing public key
at org.bouncycastle.openpgp.operator.jcajce.JcaPGPKeyConverter.getPublicKey(Unknown Source)
at org.bouncycastle.openpgp.operator.jcajce.JcePublicKeyKeyEncryptionMethodGenerator.encryptSessionInfo(Unknown Source)
at org.bouncycastle.openpgp.operator.PublicKeyKeyEncryptionMethodGenerator.generate(Unknown Source)
at org.bouncycastle.openpgp.PGPEncryptedDataGenerator.open(Unknown Source)
at org.bouncycastle.openpgp.PGPEncryptedDataGenerator.open(Unknown Source)
at org.apache.camel.converter.crypto.PGPKeyAccessDataFormat.marshal(PGPKeyAccessDataFormat.java:234)
at org.apache.camel.processor.MarshalProcessor.process(MarshalProcessor.java:80)
at org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:77)
at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:448)
at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:109)
at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:329)
at org.apache.camel.processor.DefaultErrorHandler.process(DefaultErrorHandler.java:56)
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:166)
at org.apache.camel.processor.Pipeline.process(Pipeline.java:121)
at org.apache.camel.processor.Pipeline.process(Pipeline.java:83)
at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:448)
at org.apache.camel.spring.spi.TransactionErrorHandler.processByErrorHandler(TransactionErrorHandler.java:218)
at org.apache.camel.spring.spi.TransactionErrorHandler.process(TransactionErrorHandler.java:99)
at org.apache.camel.spring.spi.TransactionErrorHandler.process(TransactionErrorHandler.java:112)
at org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:77)
at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:448)
at org.apache.camel.spring.spi.TransactionErrorHandler.processByErrorHandler(TransactionErrorHandler.java:218)
at org.apache.camel.spring.spi.TransactionErrorHandler$1.doInTransactionWithoutResult(TransactionErrorHandler.java:181)
at org.springframework.transaction.support.TransactionCallbackWithoutResult.doInTransaction(TransactionCallbackWithoutResult.java:33)
at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:131)
at org.apache.camel.spring.spi.TransactionErrorHandler.doInTransactionTemplate(TransactionErrorHandler.java:174)
at org.apache.camel.spring.spi.TransactionErrorHandler.processInTransaction(TransactionErrorHandler.java:134)
at org.apache.camel.spring.spi.TransactionErrorHandler.process(TransactionErrorHandler.java:103)
at org.apache.camel.spring.spi.TransactionErrorHandler.process(TransactionErrorHandler.java:112)
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:191)
at org.apache.camel.processor.Pipeline.process(Pipeline.java:121)
at org.apache.camel.processor.Pipeline.process(Pipeline.java:83)
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:191)
at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:109)
at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:87)
at org.apache.camel.component.jms.EndpointMessageListener.onMessage(EndpointMessageListener.java:103)
at org.springframework.jms.listener.AbstractMessageListenerContainer.doInvokeListener(AbstractMessageListenerContainer.java:562)
at org.springframework.jms.listener.AbstractMessageListenerContainer.invokeListener(AbstractMessageListenerContainer.java:500)
at org.springframework.jms.listener.AbstractMessageListenerContainer.doExecuteListener(AbstractMessageListenerContainer.java:468)
at org.springframework.jms.listener.AbstractPollingMessageListenerContainer.doReceiveAndExecute(AbstractPollingMessageListenerContainer.java:325)
at org.springframework.jms.listener.AbstractPollingMessageListenerContainer.receiveAndExecute(AbstractPollingMessageListenerContainer.java:263)
at org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.invokeListener(DefaultMessageListenerContainer.java:1101)
at org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.executeOngoingLoop(DefaultMessageListenerContainer.java:1093)
at org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.run(DefaultMessageListenerContainer.java:990)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.security.spec.InvalidKeySpecException: key spec not recognised
at org.bouncycastle.jcajce.provider.asymmetric.util.BaseKeyFactorySpi.engineGeneratePublic(Unknown Source)
at org.bouncycastle.jcajce.provider.asymmetric.elgamal.KeyFactorySpi.engineGeneratePublic(Unknown Source)
at java.security.KeyFactory.generatePublic(KeyFactory.java:334)
... 47 more

• However same code works fine with RSA public ring.

pub   2048R/7DDCD3D9 2016-07-18
uid                  TEST (wow wow wow) <test@testring.com>
sub   2048R/E119C4AB 2016-07-18