5.2

Table Of Contents
Prerequisites
n
Obtain the SAN contained in the root certificate of the trusted CA by viewing the certificate properties.
n
If
the ADSI Edit utility is not present on your Active Directory server, download and install the appropriate
Windows Support Tools from the Microsoft Web site.
Procedure
1 On your Active Directory server, start the ADSI Edit utility.
2 In the left pane, expand the domain the user is located in and double-click CN=Users.
3 In the right pane, right-click the user and then click Properties.
4 Double-click the userPrincipalName attribute and type the SAN value of the trusted CA certificate.
5 Click OK to save the attribute setting.
Add the Root Certificate to the Enterprise NTAuth Store
If you use a CA to issue smart card login or domain controller certificates, you must add the root certificate to
the Enterprise NTAuth store in Active Directory. You do not need to perform this procedure if the Windows
domain controller acts as the root CA.
Procedure
u
On your Active Directory server, use the certutil command to publish the certificate to the Enterprise
NTAuth store.
For example: certutil -dspublish -f
path_to_root_CA_cert
NTAuthCA
The CA is now trusted to issue certificates of this type.
Add the Root Certificate to Trusted Root Certification Authorities
If you use a certification authority (CA) to issue smart card login or domain controller certificates, you must
add the root certificate to the Trusted Root Certification Authorities group policy in Active Directory. You do
not need to perform this procedure if the Windows domain controller acts as the root CA.
Procedure
1 On the Active Directory server, navigate to the Group Policy Management plug-in.
AD Version Navigation Path
Windows 2003
a Select Start > All Programs > Administrative Tools > Active Directory
Users and Computers.
b
Right-click your domain and click Properties.
c On the Group Policy tab, click Open to open the Group Policy
Management plug-in.
d Right-click Default Domain Policy, and click Edit.
Windows 2008
a Select Start > Administrative Tools > Group Policy Management.
b Expand your domain, right-click Default Domain Policy, and click
Edit.
2 Expand the Computer Configuration section and open Windows Settings\Security Settings\Public
Key.
3 Right-click Trusted Root Certification Authorities and select Import.
4 Follow the prompts in the wizard to import the root certificate (for example, rootCA.cer) and click OK.
5 Close the Group Policy window.
Chapter 7 Setting Up User Authentication
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