Thank you for posting this! I've been trying to figure out what it was called for years! There was an attack I read about for garage door openers or numeric e

Thank you for posting this! I've been trying to figure out what it was called for years! There was an attack I read about for garage door openers or numeric entry doors where they didn't have an enter button. So entering they entered the De Bruijn sequence and had the answer in a small fraction of the time compared to trying each combo once and hitting "Enter".