Graphical Dictionaries and the Memorable Space of Graphical Passwords

Julie Thorpe, P.C. van Oorschot
School of Computer Science, Carleton University
{jthorpe, paulv}@scs.carleton.ca

• Abstract
• Introduction
• Related Work
• Proposed Class of Memorable Graphical Passwords
• Analysis of Class I Memorable Password Space
  • Review of DAS Scheme
  • Basic Terminology and General Approach
  • Continuous and Enclosed Cases
  • Smaller Graphical Dictionaries
  • Quantifying the Memorable Password Space
  • Approximate Size of Class I Memorable Password Space
• Additional Observations and Future Work
• Concluding Remarks
• Acknowledgements
• References