libapache2-mod-authn-webid 0~20110301-4 (armhf binary) in ubuntu zesty

 This module provides a WebID FOAF+SSL authentication mechanism for Apache.
 .
 FOAF+SSL is a secure authentication protocol that enables the building of
 distributed, open, and secure social networks: the Social Web. The protocol
 is being developed by the W3C WebID Incubator Group.
 .
 Clients are verified using a SPARQL query.