The Research archive provides access to all Research articles published in past issues of Communications of the ACM.
An ideal scheme for password storage would enable a password with more than 20 bits of randomness to be input and output from the brain of a human being who is unconscious of the process and thus unable to give away or reveal…
We present a defense against coercion attacks using the concept of implicit learning from cognitive psychology. We use a carefully crafted computer game to allow a user to implicitly learn a secret password without them having…