Abstract. Academic and commercial 802.11 hotspots often use an SSLsecured captive portal to authenticate clients. Captive portals provide good usability and interoperability, but p...
In today’s applications, most users disregard the security functionality. They do not have the knowledge and/or the motivation to configure or to use the existing security func...
Challenge questions are an increasingly important part of mainstream authentication solutions, yet there are few published studies concerning their usability or security. This pap...
Setting up security associations between end-user devices is a challenging task when it needs to be done by ordinary users. The increasing popularity of powerful personal electroni...
Virtually every Internet user on the planet uses the powerful free tools offered by a handful of information service providers in many aspects of their personal and professional l...