Classical approaches to distributed system security often rely on single-purpose entities to authenticate clients, enforce access and security policy, or at least distribute authentication tokens.  While these models are reasonable for controlling access to a centralized resource (such as a database), they are not suitable for highly-distributed and dynamic systems where fielded nodes with intermittent connectivity require access to real-time data.

Proposed RFP to add standard interoperable mechanisms to communicate data securely using DDS. The proposed standard would add several new capabilities to DDS: