Impedances of Memorable Passphrase Design on Augmented Cognition.

The quest for optimum computer authentication continues to stimulate resolution toward memorable password design. As human cognitive load processes the transfer of information from working memory to long-term memory, intrinsic and extraneous complexities present impedances to cognitive load. This study applies human cognition to the use of passphrases characterized as assembled words that are secure and easy to recall [23]. "Passwords and passphrases, when married with psychology and psycholinguistics, yield an authentication scheme that is revocable, memorable, and secure" [21, p. 2]. Subsequently, this study examines augmenting cognitive load of passphrase design to enhance memorability and effectuate authentication performance.