Message Signature – OPC Unified Architecture - Part 2: Security Model

OPC Unified Architecture - Part 2: Security Model

v1.05.06

1Scope
2Normative References
3Terms, definitions, abbreviated terms and conventions
4OPC UA security architecture
5Security reconciliation
- 5.1Reconciliation of threats with OPC UA security mechanisms
- 5.2Reconciliation of objectives with OPC UA security mechanisms
6Implementation and deployment considerations
7Unsecured Services
8GlobalDiscoveryServer Security
9Certificate management
Annex AMapping to ISA/IEC 62443-4-2 (informative)
Annex BECC vs RSA

3.1.31 Message Signature

Digital Signature used to ensure the Integrity of Messages that are sent between two entities

Note 1 to entry: There are several ways to generate and verify Message Signatures however they can be categorized as symmetric (see 3.1.44) and asymmetric (see 3.1.6) approaches.