Run the following commands:
Note: Replace the key length, signature algorithm, and certificate name with the appropriate values.
openssl genrsa -out /etc/certs/openxpki_ca-one/scep-1.key -passout file:/etc/certs/openxpki_ca-one/pd.pass 4096
openssl req -config /etc/certs/openxpki_ca-one/openssl.conf -reqexts v3_scep_reqexts -new -key /etc/certs/openxpki_ca-one/scep-1.key -subj /DC=COM/DC=LEXMARK/DC=DEV/DC=CA-ONE/CN=MYOPENXPKI_SCEPCA -out /etc/certs/openxpki_ca-one/scep-1.csr
openssl x509 -req -extfile /etc/certs/openxpki_ca-one/openssl.conf -extensions v3_scep_extensions -days 900 -in /etc/certs/openxpki_ca-one/scep-1.csr -CA /etc/certs/openxpki_ca-one/ca-signer-1.crt -CAkey /etc/certs/openxpki_ca-one/ca-signer-1.key -CAcreateserial -out /etc/certs/openxpki_ca-one/scep-1.crt -sha256