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Password Security as a Game of Entropies
2018
Entropy
We consider a formal model of password security, in which two actors engage in a competition of optimal password choice against potential attacks. The proposed model is a multi-objective two-person game. Player 1 seeks an optimal password choice policy, optimizing matters of memorability of the password (measured by Shannon entropy), opposed to the difficulty for player 2 of guessing it (measured by min-entropy), and the cognitive efforts of player 1 tied to changing the password (measured by
doi:10.3390/e20050312
pmid:33265403
fatcat:oc63gpwa4naj7ffhr3fnz5hqqu