This series? http://crackingthenutshell.com/what-is-information-part-2a-i...
I don't think you mean this one: http://www.tutorialspoint.com/cryptography/cryptography_quic...
Maybe this? http://america.aljazeera.com/articles/2014/3/18/bit-rot-the-...
From this forum post: https://www.zombiehunters.org/forum/viewtopic.php?f=6&t=1117...