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Towards narrative authentication: or, against boring authentication

In this paper we propose that what-you-know authentication schemes be built using narrative elements. Specifically, we propose that stories be used as the basis of memory-based user authentication, rather than use a fixed string as the secret for authentication (as is the case with text passwords and PINs). The insight here is that secure text passwords are ``boring'' and, hence, are hard to remember. Narrative is, in contrast, extremely memorable, forming the basis of much of human communication. We present a simple, implementable scheme for narrative authentication using text adventures. We then also examine other strategies for generating and testing knowledge of narrative.