- 'Type: ssh-rsa-cert-v01@openssh.com user certificate'
- 'Public key: RSA-CERT SHA256:aVk9k+g/iqEa5TjIDHiLBCtjHuR5hCCwAE9hExG//v0'
- 'Signing CA: RSA SHA256:yOwv/6KFgTCE9q3CDux9lS+EKT0aq3tc1OPgFD9AlXg (using rsa-sha2-512)'
- 'Key ID: ""'
- 'Serial: 0'
- 'Valid: forever'
- 'Principals: keystone'
- 'Critical Options: (none)'
- 'Extensions: (none)'