Subsystem Certificate Extensions

To display subsystem certificate extensions:

$ pki-server cert-export subsystem --cert-file subsystem.crt
$ openssl x509 -text -noout -in subsystem.crt
...
        X509v3 extensions:
            X509v3 Authority Key Identifier:
                keyid:F8:1E:0E:C5:94:6C:FC:2E:5A:38:7A:D9:6E:8E:97:73:E2:EA:A3:3C

            Authority Information Access:
                OCSP - URI:http://pki.example.com:8080/ca/ocsp

            X509v3 Key Usage: critical
                ...
            X509v3 Extended Key Usage:
                TLS Web Client Authentication
...

For subsystem certificate with an RSA key, it will have the following key usages:

            X509v3 Key Usage: critical
                Digital Signature, Non Repudiation, Key Encipherment, Data Encipherment

For subsystem certificate with an ECC key, it will have the following key usages:

            X509v3 Key Usage: critical
                Digital Signature, Data Encipherment, Key Agreement

See also:

• rsaSubsystemCert.profile

• eccSubsystemCert.profile