For numerical cryptography, I always like to use this handy dandy chart (created by Kait) for teaching how to identify the different number bases. Base-nCharacters Found in Encryption TypeBase-2 (binary)0, 1Base-3 (ternary)0, 1, 2Base-8 (octal)0, 1, 2, 3, 4, 5, 6, 7Base-9(nonary)0, 1, 2, 3, 4, 5, 6, 7, 8Base-10 (decimal)0, 1, 2, 3, 4, … Continue reading Summer Camp 2020 – Numerical Cryptography
What do dinosaurs have in common with cryptography? Well Greek, apparently, and a lot of time. 150 million years ago, there roamed a dinosaur covered with bony plates. The paleontologists used the Greek word steganós and sauros to mean "covered lizard". In much more recent times, lets say about 500 years ago, steganós and graphia … Continue reading Hiding in Plain Sight: Steganography Tricks and Tips
""Ph'nglui mglw'nafh Cthulhu R'lyeh wgah'nagl fhtagn." Occult horror readers will recognize the phrase from H.P. Lovecraft's 1926 classic, The Call of Cthulhu. However, outside of that small circle, it seems like pure gibberish. Similarly, looking at a message that has been encrypted calls to mind those same eldritch horrors, chanting in their secret watery caves … Continue reading Sha Jvgu Pelcgb! Crypto or Cthulhu?
Introduction With a username like CryptoKait, I figure it’s about time that I write my own “Introduction to Cryptography Guide.” Well, that and Iowa State University’s Women’s Alliance for Cybersecurity student organization invited me to guest lecture this tonight so I should probably attempt to provide some sort of supplemental materials. Maybe. If I can … Continue reading An Introduction to Cryptography