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Installing_CA.md

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Installing CA

Overview

This page describes the process to install a CA subsystem with a self-signed CA signing certificate.

Before beginning with the installation, please ensure that you have configured the directory server and added base entries. The step is described here.

Additionally, make sure the FQDN has been configured correctly.

CA Subsystem Installation

Prepare a deployment configuration (e.g. ca.cfg) to deploy CA subsystem. By default the subsystem will be deployed into a Tomcat instance called pki-tomcat.

A sample deployment configuration is available at /usr/share/pki/server/examples/installation/ca.cfg.

To start the installation execute the following command:

$ pkispawn -f ca.cfg -s CA

CA System Certificates

After installation the CA system certificates and keys will be stored in the server NSS database (i.e. /etc/pki/pki-tomcat/alias):

$ certutil -L -d /etc/pki/pki-tomcat/alias

Certificate Nickname                                         Trust Attributes
                                                             SSL,S/MIME,JAR/XPI

ca_signing                                                   CTu,Cu,Cu
ca_ocsp_signing                                              u,u,u
subsystem                                                    u,u,u
ca_audit_signing                                             u,u,Pu
sslserver                                                    u,u,u

If necessary, the certificates can be exported into PEM files with the following command:

$ pki-server cert-export <cert ID> --cert-file <filename>

The valid certificate IDs for CA are:

  • ca_signing
  • ca_ocsp_signing
  • ca_audit_signing
  • subsystem
  • sslserver

Note that the pki-server cert-export command takes a certificate ID instead of a nickname. For simplicity the nicknames in this example are configured to be the same as the certificate ID.

Admin Certificate

After installation the admin certificate and key will be stored in ~/.dogtag/pki-tomcat/ca_admin_cert.p12. The PKCS #12 password is specified in the pki_client_pkcs12_password parameter.

To use the admin certificate, prepare a client NSS database (default is ~/.dogtag/nssdb):

$ pki client-init

Export the CA signing certificate from the server NSS database:

$ pki-server cert-export ca_signing --cert-file ca_signing.crt

Then import the CA signing certificate into the client NSS database:

$ pki client-cert-import ca_signing --ca-cert ca_signing.crt

Finally, import admin certificate and key with the following command:

$ pki client-cert-import \
    --pkcs12 ~/.dogtag/pki-tomcat/ca_admin_cert.p12 \
    --pkcs12-password Secret.123

To verify that the admin certificate can be used to access the CA subsystem, execute the following command:

$ pki -n caadmin ca-user-show caadmin
--------------
User "caadmin"
--------------
  User ID: caadmin
  Full name: caadmin
  Email: caadmin@example.com
  Type: adminType
  State: 1