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Full-Text Articles in Cognitive Psychology
Password Strength Analysis: User Coping Mechanisms In Password Selection, Brian Thomas Curnett
Password Strength Analysis: User Coping Mechanisms In Password Selection, Brian Thomas Curnett
Open Access Theses
The security that passwords provide could be seriously flawed due to the way people cope with having to memorize and recall their passwords. The National Institute of Standards and Technology (NIST) standard that is used to measure the password strength, known as entropy, is designed for a single use and does not consider that users may choose to keep parts of their password across password changes. This study shows that a portion of users keep some information from previous passwords across changes. These habits which will be called coping mechanisms that over time serve to erode the protection provided by …
Optimization Of Switch Virtual Keyboard By Using Computational Modelling, Xiao Zhang
Optimization Of Switch Virtual Keyboard By Using Computational Modelling, Xiao Zhang
Open Access Theses
In this thesis, I first reviewed some keyboard technologies used by people with motor difficulties, and described design elements that influence efficiency. I cast the design of a switch keyboard as an optimization problem, and arrangement of keys on such a keyboard as a Mixed Integer Programming problem. One significant variable in the MIP problem, the error rate, is related to several other variables. I treated modeling of the error rate as a parameter estimation problem, and used a data mining method. I designed HCI experiments to gather data for parameter estimation, using Bayesian logistic regression model. The empirical data …