Learning and Teaching for Mathematical Literacy

Supporting materials – 13F

Password Strength


This famous (in IT circles) cartoon makes the argument for longer, memorable passphrases over the typical short password mangled to includer numbers and punctuation. It was the inspiration for the section on password strength in the book.

Password Strength (XKCD #936)

Cartoon illustrating the relative strength of common password choices

Supporting material for the book Learning and Teaching for Mathematical Literacy by Hugh Burkhardt, Daniel Pead and Kaye Stacey (ISBN 9781032301174).

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