libapache2-webkdc 4.6.1-1build1 (arm64 binary) in ubuntu vivid

 WebAuth is a cookie-based web authentication system built on top of
 Kerberos. It relies on a central authentication server that handles all
 user authentication for a domain and creates user authentication
 credentials for any web server that needs strong authentication.
 .
 This package is a transitional package for the WebKDC to ease upgrades to
 the correct Apache module package naming scheme. It can be safely
 removed.