RailsConf 2022 - Pictures Of You, Pictures Of Me, Crypto Steganography by Sean Marcia

I was puzzled when a friend sent me a Buffy the Vampire Slayer picture out of the blue but, knowing that friend is an oddball, thought nothing of it. Days later, again without warning, a Babylon 5 picture. A few days after that a picture from Firefly. Then he repeated the pictures. A cryptic comment led me to understand that there was more to them than met the eye. Come learn the history, applications, and math behind crypto steganography how unravelling the mystery of the pictures culminated in the resolution of a 15 year rivalry when the US Olympic men’s curling team won the gold in 2018.