FYI: I just released 4.0.19.Final.
This changes the way ASYM_ENCRYPT disseminates the private shared group key to members, going from a pull- to a push-based approach [1] [2].
In combination with JGRP-2293 [3], this should help a lot in environments like Kubernetes or Openshift where pods with JGroups nodes are started/stopped dynamically, and where encryption is required.
The design is at [3].
Check it out and let me know if you run into issues.
Cheers,
[1] https://issues.jboss.org/browse/JGRP-2297
[2] https://issues.jboss.org/browse/JGRP-2293
[3] https://github.com/belaban/JGroups/blob/master/doc/design/ASYM_ENCRYPT.txt
