PKI Limitations

  • All certificates should be in PEM format files.
  • Downloading CA certificate chain is not supported.
  • Individual CA certificates in a certificate chain should be downloaded one-by-one using the following command: download ssl ipaddress certificate {ssl-cert | trusted-ca | ocsp-signature-ca} cert_file
  • Downloading CA certificate of size greater than 7.5KB is not recommended.
  • Certification Revocation Lists (CRLs)—not supported.
  • OCSP stapling—not supported.
  • Nonce is always disabled in OCSP request.
  • OCSP is not done for the OCSP responder certificate. Therefore, the OCSP responder certificate should satisfy any of following criteria, failing which the OCSP response is rejected:
    • OCSP responder certificate should be self-signed, OR
    • OCSP responder certificate should contain id-pkix-ocsp-nocheck extension.