Abstract
The inverse relation between memorability of a password and the strength of a password presents a unique optimization opportunity for cognitive approaches. While graphical passwords have received most of the attention to date, the use of verbal material to create memorable passwords presents some distinct advantages that might make story-based passwords a serious contender in the race to the ultimate “cognitive” password system. In a first pilot study with 385 participants we investigated the memory for different story elements for short (10 min) and long (1 week) retention intervals. Even a non-optimized story yields better long-term performance than traditional alphanumeric passwords and is comparable to the lower end of graphical password systems.
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