OPC Unified Architecture Specification Part 2: Security Model Version 1.00

This specification describes the OPC Unified Architecture security model. It describes the security threats of the physical, hardware, and software environments in which UA is expected to run. It describes how UA relies upon other standards for security. It gives an overview of the security features that are specified in other parts of the OPC UA specification. It references services, mappings, and profiles that are specified normatively in other parts of this multi-part specification. This part of the specification is informative rather than normative. Any seeming ambiguity between this part and one of the normative parts does not remove or reduce the requirement specified in the normative part.
This Part 2 is directed to readers who will develop OPC UA client or server applications or implement the OPC UA services layer.