Summary: Access Control by Testing for Shared Knowledge
Michael Toomim1
, Xianhang Zhang2
, James Fogarty1
and James A. Landay1
Computer Science & Engineering1
DUB Group, University of Washington
Seattle, WA 98195
{toomim,jfogarty,landay}@cs.washington.edu
Human Interface Technology Laboratory2
DUB Group, University of Washington
Seattle, WA 98195
xianhang@u.washington.edu
ABSTRACT
Controlling the privacy of online content is difficult and often
confusing. We present a social access control where users
devise simple questions of shared knowledge instead of
constructing authenticated accounts and explicit access con-
trol rules. We implemented a prototype and conducted stud-
ies to explore the context of photo sharing security, gauge

Source: Anderson, Richard - Department of Computer Science and Engineering, University of Washington at Seattle

Collections: Computer Technologies and Information Sciences