Radiator RADIUS Server now has native support for authentication with Heimdal Kerberos. Heimdal Kerberos is an implementation of Kerberos 5 largely written in Sweden. It is freely available under a three clause BSD style license.

Kerberos 5 (RFC 4120) is a highly secure system for authenticating and controlling access to computer resources. The new Radiator AuthBy HEIMDALDIGEST module works with Heimdal Kerberos to authenticate users against a Heimdal Kerberos Key Distribution Centre (KDC).

The advantage of using AuthBy HEIMDALDIGEST module is that (unlike other Kerberos based RADIUS authentication systems), a wide range of authentication protocols can be supported, including RADIUS-PAP, EAP-MD5, EAP-MSCHAPV2 (and therefore TTLS-PAP, TTLS-EAP-MD5, PEAP-EAP-MD5, PEAP-EAP-MSCHAPV2, TTLS-EAP-MSCHAPV2). This allows more flexible integration of modern, widely used authentication protocols with a secure authentication back end.