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Colordots: An Intersection Analysis Resistant Graphical Password Scheme For The Prevention Of Shoulder-Surfing Attack, Jim Littleton
Colordots: An Intersection Analysis Resistant Graphical Password Scheme For The Prevention Of Shoulder-Surfing Attack, Jim Littleton
UNF Graduate Theses and Dissertations
In an increasingly mobile world, the combination of mobile computing devices, publicly accessible Wi-Fi hotspots, and camera phones pose a significant threat to alphanumeric passwords in public environments. Graphical passwords, introduced as an alternative to alphanumerical passwords, help prevent successful shoulder-surfing attacks – covertly observing or recording a password login session, however, most cannot prevent intersection analysis on the data collected through shoulder-surfing. ColorDots is a new graphical password scheme designed to be easy to use and learn, to prevent successful shoulder-surfing attacks, and to hinder intersection analysis. A software implementation of ColorDots is tested, and the results analyzed. This …
Improving The Knowledge-Based Expert System Lifecycle, Lucien Millette
Improving The Knowledge-Based Expert System Lifecycle, Lucien Millette
UNF Graduate Theses and Dissertations
Knowledge-based expert systems are used to enhance and automate manual processes through the use of a knowledge base and modern computing power. The traditional methodology for creating knowledge-based expert systems has many commonly encountered issues that can prevent successful implementations. Complications during the knowledge acquisition phase can prevent a knowledge-based expert system from functioning properly. Furthermore, the time and resources required to maintain a knowledge-based expert system once implemented can become problematic. There are several concepts that can be integrated into a proposed methodology to improve the knowledge-based expert system lifecycle to create a more efficient process. These methods are …