Strongcertificatebindingenforcement Registry Key Location ~repack~ Official

This setting, introduced by Microsoft, controls how strictly the Domain Controller enforces certificate-based authentication binding. Getting it wrong can break legacy smart card logins; getting it right closes critical elevation-of-privilege vulnerabilities (CVE-2020-17049).

If you’ve been troubleshooting Kerberos authentication issues in a modern Active Directory environment—especially around PKINIT or smart card logins—you’ve likely come across the term StrongCertificateBindingEnforcement .

But where exactly is this registry key located? And what values should you use? Let’s cut through the confusion. On a Domain Controller (where the behavior is enforced), the key lives under: