4 ms·
That's just like early days video game anti-piracy measure. What is the third word on the second paragraph of page 42 of the Dungeon Master's manual? Etc.
by ionforce 13y ago
That's just like early days video game anti-piracy measure.
What is the third word on the second paragraph of page 42 of the Dungeon Master's manual? Etc.
- jcfiala 13y agoThe Pragmatic Programmer website uses this system to allow you to prove that you bought a hard-copy of a book, so they can offer you a discounted ebook.
- nknighthb 13y agoMilitary codebooks are used in this way for authenticating over unsecured links. Letters or numbers laid out in a grid-like format, and you make the far side read off a certain cell. http://en.wikipedia.org/wiki/DRYAD http://en.wikipedia.org/wiki/DRYAD http://en.wikipedia.org/wiki/BATCO#Other_functions http://en.wikipedia.org/wiki/BATCO#Other_functions