Which weapon storage and security system (WS3) group uses portable modules to store and transfer encryption keys?

The weapon storage and security system (WS3) group that specifically employs portable modules for the purpose of storing and transferring encryption keys is the Coder-transfer group. This group is essential for managing the secure handling of codes and encryption, ensuring that critical data is accessible only by authorized personnel and systems. The portable nature of these modules allows for flexibility and secure transfer capabilities in various operational environments, enhancing overall security and efficiency in munitions management.

The other groups play significant roles within the WS3 but do not focus on the specific function of handling encryption keys. The Storage Group's primary concern is the physical storage of munitions, while the Security Group focuses more on general security measures and protocols. The Encryption Group would typically deal with encryption methods but doesn't specifically address the design of portable modules for key transfer like the Coder-transfer group does.