We describe a technique aimed at addressing longstanding problems for password reset: security and cost. In our approach, users are authenticated using their preferences. Experime...
We propose a scheme that exploits scale to prevent phishing. We show that while stopping phishers from obtaining passwords is very hard, detecting the fact that a password has bee...
Authentication systems for public terminals – and thus public spaces – have to be fast, easy and secure. Security is of utmost importance since the public setting allows manif...
Alexander De Luca, Martin Denzel, Heinrich Hussman...
Graphical password systems based on the recognition of photographs are candidates to alleviate current over-reliance on alphanumeric passwords and PINs. However, despite being bas...
We address the problem of confidentiality in scenarios where the attacker is not only able to observe the communication between principals, but can also fully compromise the commu...