Configure a Client Certificate

Configure a Certificate Authority (CA) chain to authenticate users.
Upload the CA chain, including the root certificate and any intermediate certificates, that issues the client certificate. The Cloud Identity Engine supports multiple intermediate certificates but does not support sibling intermediate certificates in a single CA chain.
In the Cloud Identity Engine app, select
Authentication
CA Chains
Add CA Chain
.

Enter the necessary information for the CA chain profile.

CA Name
—Enter a unique name to identify the CA chain in the Cloud Identity Engine instance.
CA Chain
—
Click to Upload
your CA certificate then
Open
the certificate to select it.
The file must end in the
.crt
or
.pem
file extension.
CRL Endpoint
—(Optional but recommended) Specify the URL for the certificate revocation list (CRL) list that you want the Cloud Identity Engine to use to validate the client certificate.
If you configure CA chain for an authentication profile, you can
Fetch CRL
to refresh the list of revoked certificates to ensure the Cloud Identity Engine uses the latest version of the list to check the certificate’s validity.

Submit
the changes to complete the configuration.
In the Cloud Identity Engine app, select
Authentication
Authentication Types
Add New
.

Select
Client Certificate
Set Up
.

Enter a unique
Authentication Type Name
for the client certificate.
Select the
Username Field
that you want the Cloud Identity Engine to use to authenticate users.
Select the
Username Field
based on the attribute type of the client certificate that you want to use to authenticate the user; for example, if the username is defined in the client certificate using
Subject
, select
Subject
.

Configure the
Username Attribute
based on the previous step and the attribute that your client certificate uses to authenticate users.
If the Username Field is
Subject
, the Username Attribute is
CN
.
If the Username Field is
Subject Alt Name
, select
Email
or
User Principal Name
based on the attribute that your client certificate specifies.
Add
one or more
CA Chains
to authenticate users.

Click
Select CA Chain
, select the CA chain you previously configured, and
Add
it to the configuration.
The Cloud Identity Engine supports grouping multiple CA chains in a certificate type to authenticate client certificates issued by multiple CA chains.

Submit
your changes to configure the authentication type.