Exploring Implicit Memory for Painless Password Recovery Tamara - PowerPoint PPT Presentation

Oct 03, 2023 •167 likes •299 views

Exploring Implicit Memory for Painless Password Recovery Tamara Denning ,* Kevin Bowers,* Marten van Dijk,* Ari Juels* *RSA Laboratories University of Washington Talk Goals Novel authentication concept is not implausible. Future

Exploring Implicit Memory for Painless Password Recovery Tamara Denning ,*† Kevin Bowers,* Marten van Dijk,* Ari Juels* *RSA Laboratories †University of Washington
Talk Goals Novel authentication concept …is not implausible. Future directions identified.
The Problem • Authentication Passwords & • Graphical Passwords Password Recovery password1 • Life Questions • Preferences
Implicit Memory Explicit Memory Unconscious influence Conscious retrieval Motor memory Fact recall Different biological mechanisms
Priming 1. Stimulus 2. Time Delay 3. Task
System Concept Enrollment Authentication (Password Recovery) Primed camel camel mushroom cloud rollerskate fish Snodgrass & Vanderwart (1980) Snodgrass & Corwin (1988)
Authentication Secret The secret is not the image completion. The secret is the set of assigned images.
User Study 1. Stimulus (label complete images) 2. Time Delay (~26.8 days) 3. Task (label fragmented images)
User Study • ~70 participants • Primed + correctly labeled: 984 / 2149 (45.8%) • Unprimed + correctly labeled: 834 / 2143 (38.8%)
Strengths & Weaknesses No memorization Slow = weak priming effect required on many images Password strength Limited information per precisely quantifiable image: correct/incorrect Potentially long-lasting New enrollment required after every use
Further Investigation 1. The corpus 2. Increase amount of information per image
Questions? Thanks to study participants from EMC.

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