Kerberos
A network authentication protocol designed to provide strong authentication for client/server applications by using secret-key cryptography. Kerberos is the primary security protocol for authentication within an Active Directory service domain.
KNX®
An abbreviation for Konnex, KNX is a European open standard for commercial and domestic building automation. KNX devices can manage a host of equipment include lighting, blinds and shutters, HVAC, security, energy management.