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Scope: Core (OPC-10000-*) All specs

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OPC-10000-6 – OPC Unified Architecture - Part 6: Mappings

6.2.2 Application Instance Certificate

used to sign the Certificate . It shall be specified for Certificates signed by a CA. It should be specified for self-signed Certificates . basicConstraints (No mapping) The basicConstraints field ... completely described in IETF RFC 5280 . The cA flag Identifies whether the subject of the Certificate is a CA The pathLength specifies the maximum number of intermediate CAs in valid
OPC-10000-6 – OPC Unified Architecture - Part 6: Mappings

6.2.3 User Certificates

specified. basicConstraints The basicConstraints field is completely described in IETF RFC 5280 . The cA flag Identifies whether the subject of the Certificate is a CA The pathLength specifies the maximum ... depth of valid chains that include this Certificate . The cA flag shall be FALSE for User Certificates . The pathLength shall not be present
OPC-10000-6 – OPC Unified Architecture - Part 6: Mappings

6.2.4 Issuer (CA) Certificates

Issuer (CA) Certificates An Issuer or CA Certificate is an X.509 v3 Certificate that identifies an authority that issues Certificates . An Issuer Certificate may identify a root CA ... intermediate CA. Certificates that identify root CAs are self-signed Certificates . Certificates that identify intermediate CAs are issued by authority identified by an intermediate CA or root CA. The X.509