To make JBOSS AS 7 node communication secure

I am using JBOSS AS 7.1.0 final in domain mode .
There are 4 node in domain.
My requirement is to make node communication secure ............like HTTPS.

As per my understanding JBOSS AS 7 uses JGroups for communication between domain node and JGroups use TCP or UDP protocol for communicate.

For example ......when we are using HTTPS protocol, all communication between Browser and Server are done in Encrypted formate...........

I need same thing in JBOSS AS 7 node communication ........means all communication between domain nodes must be done in some Encryption/Decryption form or any other way to make communication secure ......