[jboss-jira] [JBoss JIRA] Commented: (JGRP-538) ENCRYPT protocol throwing IllegalBlockSizeException

[Bela Ban (JIRA)]

    [ http://jira.jboss.com/jira/browse/JGRP-538?page=comments#action_12368115 ] 
            
Bela Ban commented on JGRP-538:
-------------------------------

#1 This has nothing to do with ENCRYPT
#2 You cannot send anything over the NotificationBus until connect() has returned. This is not the case when you get your first viewAccepted() callback

I suggest you dispatch those notifications you want to send out on viewAccepted() to a thread pool and each task loops until the channel is connected.

> ENCRYPT protocol throwing IllegalBlockSizeException
> ---------------------------------------------------
>
>                 Key: JGRP-538
>                 URL: http://jira.jboss.com/jira/browse/JGRP-538
>             Project: JGroups
>          Issue Type: Bug
>    Affects Versions: 2.5
>         Environment: Windows, Linux
>            Reporter: vivek v
>         Assigned To: Bela Ban
>             Fix For: 2.5
>
>         Attachments: NotificationBusDemo.java
>
>
> I use NotificationBus channel and in the member joined method I call, bus.sendNotification(Node) - passing a custom Node object. Upon this I get the following error on the newly joined member,
> javax.crypto.IllegalBlockSizeException: Input length must be multiple of 8 when decrypting with padded cipher 
> at com.sun.crypto.provider.SunJCE_f.b(DashoA13*..) 
> at com.sun.crypto.provider.SunJCE_f.b(DashoA13*..) 
> at com.sun.crypto.provider.DESCipher.engineDoFinal(DashoA13*..) 
> at javax.crypto.Cipher.doFinal(DashoA13*..) 
> at org.jgroups.protocols.ENCRYPT._decrypt(ENCRYPT.java:838) 
> at org.jgroups.protocols.ENCRYPT.decryptMessage(ENCRYPT.java:831) 
> at org.jgroups.protocols.ENCRYPT.handleUpMessage(ENCRYPT.java:672) 
> at org.jgroups.protocols.ENCRYPT.up(ENCRYPT.java:533) 
> I could reproduce the same problem using NotificationBusDemo.java in JGroups 2.5 CR1. Here is what I did, 
>  
> 1) Generate a keystore using JGroups' KeyStoreGenerator  (I also tried with JDK 1.6's keytool to generate secret key)
> 2) Add the following line in the protocol stack of NotificationBusDemo.java in the main(),  
> "ENCRYPT(key_store_name=jgroups.keystore;store_password=storePassed;alias=mykey):" + 
>  
> 3) Add the following line in the memberJoined(..) method of NotificationBusDemo.java  
> bus.sendNotification("Member Joined");  
>  
> 4) Run 2 instances of NotificationBusDemo.java 
> 5) You'll get the following error message, 
>  
> > 3828 [WARN] ENCRYPT.up(): - exception occurred decrypting message 
> javax.crypto.BadPaddingException: Given final block not properly padded 
> at com.sun.crypto.provider.SunJCE_h.b(DashoA12275) 
> at com.sun.crypto.provider.SunJCE_h.b(DashoA12275) 
> I am running this on Windows using JGroups 2.5 CR1.  The original thread for this issue is at,
>     http://sourceforge.net/forum/forum.php?thread_id=1751571&forum_id=18795

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