Kona Site Defender providing user authentication intermediary services using PKI-based user authentication must only accept end entity certificates issued by DoW PKI or DoW-approved PKI Certification Authorities (CAs) for the establishment of protected sessions.

Non-DoW approved PKIs have not been evaluated to ensure that they have security controls and identity vetting procedures in place that are sufficient for DoW systems to rely on the identity asserted in the certificate. PKIs lacking sufficient security controls and identity vetting procedures risk being compromised and issuing certificates that enable adversaries to impersonate legitimate users.

The authoritative list of DoW-approved PKIs is published at http://iase.disa.mil/pki-pke/interoperability. DoW-approved PKI CAs may include Category I, II, and III certificates. Category I DoW-approved external PKIs are PIV issuers. Category II DoW-approved external PKIs are Non-Federal Agency PKIs cross-certified with the Federal Bridge Certification Authority (FBCA). Category III DoW-approved external PKIs are Foreign, Allied, or Coalition Partner PKIs.

Deploying the ALG with TLS enabled will require the installation of DoW and/or DoW-approved CA certificates in the trusted root certificate store of each proxy to be used for TLS traffic.

This requirement focuses on communications protection for the application session rather than for the network packet.