IBM MQ - Message Signing

I've posted a couple of questions on the RPG list but I think that my problem is more general than RPG so I thought I'd shoot it up the flag pole here and hope someone salutes. I'm hoping someone has some IBM MQ experience on the IBM i.

My company needs to connect to a Federal Reserve MQ server. From their documentation: "The Service uses message signatures as one of multiple layers of security controls to help verify the integrity and authenticity of messages sent and received through the service. Message signing occurs point-to-point."

IBM's documentation indicates "Message security in IBM® MQ infrastructure is provided by Advanced Message Security.  Advanced Message Security ( AMS ) expands IBM MQ security services to provide data signing and encryption at the message level."  https://www.ibm.com/docs/en/ibm-mq/9.3?topic=mechanisms-message-security-in-mq

I would like to run my MQ processing from our IBM i servers. I've installed the client software on one IBM i and the server software (trial license) on another and can communicate between the two. Via my RPG programs I can put and get messages on the queues from multiple locations but don't know how to configure the client software to sign messages. I'd thought it was my program but am beginning to think my problems are an MQ configuration problem rather than a programming (RPG) problem.

I'd hate to surrender and pass this to some of our Java guys but there seems to be so much more community support for IBM MQ in the java and AIX worlds.

If there are any MQ adherents/experts in the shadows, I'd appreciate any direction on configuring an IBM I system for AMS.

Thanks, Troy