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OpenID is an open and promising Web single sign-on (SSO) solution. This work investigates the challenges and concerns web users face when using OpenID for authentication, and identifies what changes in the login flow could improve the users' experience and adoption incentives. We found our participants had several behaviors, concerns, and misconceptions(More)
OpenID and OAuth are open and simple Web SSO protocols that have been adopted by major service providers, and millions of supporting Web sites. However, the average user’s perception of Web SSO is still poorly understood. Through several user studies, this work investigates users’ perceptions and concerns when using Web SSO for authentication.(More)
OpenID is an open and promising Web single sign-on solution; however, the interaction flows provided by OpenID are inconsistent, counter-intuitive, and vulnerable to phishing attacks. In this work, we investigated the challenges web users face when using OpenID for authentication, and designed a phishing-resistant, privacy-preserving browser add-on to(More)
We present a validation study for the effectiveness of an additional ankle-tilt platform to enhance somatosensory ankle feedback available to subjects actuating a 6-axis robotic balance simulator platform. To address this need, we have developed and integrated a device to permit independent manipulation of ankle rotation while the whole-body is actuated by(More)
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