Randomized protocols for hiding private information can often be regarded as noisy channels in the informationtheoretic sense, and the inference of the concealed information can b...
E-democracy is a necessity in this era of computers and information technology. E-voting is one of the most significant parts of e-democracy, which refers to the use of computers ...
We propose BeamAuth, a two-factor web authentication technique where the second factor is a specially crafted bookmark. BeamAuth presents two interesting features: (1) only server...
Researchers have previously looked into the problem of determining if a given set of security hardening measures can effectively make a networked system secure. Many of them also...
We present Asirra (Figure 1), a CAPTCHA that asks users to identify cats out of a set of 12 photographs of both cats and dogs. Asirra is easy for users; user studies indicate it c...
Jeremy Elson, John R. Douceur, Jon Howell, Jared S...