UM doesn't provide any data encryption at this time. The product management team has been looking at market requirements for security and encryption for future versions. I believe that HSBC has an ongoing dialog with the product management team. If you need an introduction, please let me know.
Would there be access control list allowed for the data subscription / publishing for multicast ? We will use twngd in our new environment.
Have you looked at the features of the Ultra Messaging Manager (UMM) included with the UM product?
UMM is the current means to create policy for UM applications.
The ACE/ACL feature in the Dynamic Router Option (DRO) creates topic forwarding rules between topic resolution domains but they aren't used in the path routing calculations or have any idea of the identity of the sources or receivers for a topic the DRO is forwarding.
I hope this helps,