SCEP

FortiAuthenticator contains a Simple Certificate Enrollment Protocol (SCEP) server that can sign user CSRs, and distribute CRLs and CA certificates. To use SCEP, you must:

Enable HTTP administrative access on the interface connected to the Internet. See Interfaces.
Add the CA certificate for your certificate authority. See Certificate authorities.
Select the CA to use for SCEP. See Default CA.

Users can request a user certificate through online SCEP, found at http://<FortiAuthenticator-IP-Address>/cert/scep.

General

As an administrator, you can allow FortiAuthenticator to either automatically sign the user’s certificate or alert you about the request for a signature.

To enable SCEP and configure general settings, go to Certificate Management > SCEP > General and select Enable SCEP.

Configure the following settings:

Default CA	Select the default CA to use from the dropdown menu.
Enrollment method	Select the enrollment method: Automatic: The certificate is pre-approved by the administrator. The administrator enters the certificate information on FortiAuthenticator and gives the user a challenger password to use when submitting their request. Manual and Automatic: The user submits the CSR, the request shows up as pending on FortiAuthenticator unit, then the administrator manually approves the pending request. Optionally, enter an email address to be informed of pending approval notifications.
Default enrollment password	Enter the default enrollment password that will be used when not setting a random password.
Revoke the old certificate on renewal	Enable to revoke the old certificate once it has been renewed.

Select OK to apply any changes you have made.

Enrollment requests

To view and manage certificate enrollment requests, go to Certificate Management > SCEP > Enrollment Requests.

Note that, before you can create or configure certificate enrollment requests, SCEP must be enabled, and HTTP access must be enabled on the network interface(s) that will serve SCEP clients (under System > Network > Interfaces).

The following information is available:

Create New	Create a new certificate enrollment request.
Delete	Delete the selected certificate enrollment request.
Approve/Reject	Approve or reject the selected certificate enrollment request.
Method	The enrollment method used.
Status	The status of the enrollment: Pending, Approved, or Rejected.
Wildcard	If it is a wildcard request, a green circle with a check mark is shown.
Issuer	The issuer of the certificate.
Subject	The certificate subject.
Renewable Before Expiry (days)	The number of days before the certificate enrollment request expires that it can be renewed.
Updated at	The date and time that the enrollment request was last updated.

To view the enrollment request details:

From the enrollment request list, select a request by clicking within its row.

Select Close to return to the enrollment request window.

To reset the enrollment request status:

From the Certificate Enrollment Request window, select Did the client lose his/her certificate and key? The Reset enrollment request status? window opens.

There are two methods to reset the enrollment request:

Manually remove the old enrollment request, revoke its certificate, then create a new enrollment request with exactly the same configuration and subject name as the old certificate.
Re-use the same enrollment request by resetting its status and then revoking the lost certificate (recommended).

To re-use the same enrollment request, select Yes, I’m sure.

To create a new certificate enrollment request:

From the certificate enrollment requests list, select Create New.

Enter the following information:

Automatic request type		Select the automatic request type, either Regular or Wildcard.
Certificate Authority		Select one of the available CAs configured on FortiAuthenticator from the dropdown menu. The CA must be valid and current. If it is not you will have to create or import a CA certificate before continuing. See Certificate authorities.
Subject Information
	Subject input method	Select the subject input method, either Fully distinguished name or Field-by-field.
	Subject DN	If the subject input method is Fully distinguished name, enter the full distinguished name of the subject. There should be no spaces between attributes. Valid DN attributes are DC, C, ST, L, O, OU, CN, and emailAddress. They are case-sensitive.
	Name (CN)	If the subject input method is Field-by-field, enter the subject name in the Name (CN) field (if the Automatic request type is set to Regular), and optionally enter the following fields: Department (OU) Company (O) City (L) State/Province (ST) Country (C) (select from dropdown menu) Email address
Certificate Signing Options
	Validity period	Select the amount of time before this certificate expires. Select Set length of time to enter a specific number of days, or select Set an expiry date and enter the specific date on which the certificate expires.
	Hash algorrithm	Select the hash algorithm from the dropdown menu, either SHA-256 (set by default) or SHA-1.
Challenge Password
	Password creation	Select to either set a random password, or use the default enrollment password (see Default enrollment password).
	Challenge password distribution	Select the challenge password distribution method. This option is only available if Password creation is set to Set a random password. Display: Display the password on the screen. SMS: Send the password to a mobile phone. Enter the phone number in the Mobile number field and select an SMS gateway from the dropdown menu. Email: Send the password to the email address entered in the email field.
Renewal		To allow renewals, select Allow renewal, then enter the number of days before the certificate expires (minimum of one day). Once renewal is enabled, you can optionally either allow or reject SCEP renewal requests for expired and revoked certificates (as burst renewal requests from FortiGates could exhaust the FortiAuthenticator and create duplicate certificates), and either allow or reject SCEP renewal requests signed using the old private key.
Subject Alternative Name		SANs allow you to protect multiple host names with a single SSL certificate. SAN is part of the X.509 certificate standard. This section is not available when the certificate type is Intermediate CA certificate signing request (CSR).
	Email	Enter the email address of a user to map to this certificate.
	User Principal Name (UPN)	Enter the UPN used to find the user’s account in Microsoft Active Directory. This will map the certificate to this specific user. The UPN is unique for the Windows Server domain. This is a form of one-to-one mapping.
Advanced Options: Key Usages		Some certificates require the explicit presence of extended key usage attributes before the certificate can be accepted for use. For detailed information about these attributes, see End entities.

Select OK to create the new certificate enrollment request.

Once created, the request will have a Status of Pending. A code will be displayed which must be provided to the client as a challenge password for the automatic certificate enrollment process.