SCP

ARCHVIE OF STEGANOGRAPHIC CONTENT Skullcode was an obscure website with very little public documentation on it. There have been a few people who have tried to crack it but I have no idea if the full thing has been solved yet. The Polish Plague Doctor stego disc that circulated around some tech circles. This is a particularly interesting excersize in steganography because of how many pieces of data are hidden in a single file, the pieces of which are still being figured out. Not to mention, it is strongly themed around the black plauge; spooky. Cicada 3301 is a great steganographic oddity, and for good reason. Here are the links to their twitter, subreddit(s), and an interesting theory about them. Tengri137 is interesting. They used perfect number cubes as part of their puzzles and they also released info they claimed would advance human society. It didn't. The Voynich Manuscript was a linguistic oddity (full text & transcription). There have been notable advances that show the text was written in ancient Turkic. It is still one of the most famous cases of obscured texts. The Copiale Cipher was a manuscript from the 1700's for an ocult order and was completely enciphered. It's a good example of an obfuscated historical text; a full transcription of which can be found here. The Library of Babel can be used to send messages, as technically everything is already written in it. There is also a similar function for images called Babelia in which all images in the 640x416 dimension range theoretically already exist. Stego tools using similar functions are incredibly underutilized. STEGANOGRAPHY & CIPHER TOOLS NAME | Text | Image | Audio | Video | Analysis | In-browser ─────────────────┼──────┼───────┼───────┼───────┼──────────┼─────────── Ste.gg | | ● | ● | tba | ● | ● OpenPuff 4.00 | | ● | ● | ● | | SilentEye | | ● | ● | | | f5stego.js | | ● | | | | ● SCIpher | ● | | | | | ● SCIgen | ● | | | | | ● Unicode steg | ● | | | | | ● Invis Chars | — | | | | ● | ● Sonic Visualizer | | | — | | ● | Spec | | | — | | ● | ExifTool (GUI) | | — | — | — | ● | EXIF reader | | — | | | ● | ● ─────────────────┼──────┼───────┼───────┼───────┼──────────┼─────────── CyberChef |cipher| | | | ● | ● P4RS3LT0NGV3 |cipher| | | | | ● CipherEditor |cipher| | | | | ● Xenotation |cipher| | | | | ● Dcode | — | | | | ● | ● Lifehash | cipher | | | | ● Identicons | cipher | | | | ● FLMask | | cipher| | | | ● G-Mask | | cipher| | | | ● MISCELLANEOUS RESOURCES Stegasaurus Wrecks stegs images with data that interferes with AI training. The OEIS and Nonograms are good for steganography using math, including audio. PubChem and avogadr.io can be used for chemical steganography. Moxtak made this short steganography challenge for us. CrypTool is great for learning and using cryptographic techniques. What databending is and how to do it; photomosh for image/video manipulation. MysteryTwisterC3 hosts many of these kinds of challenges including still-unsolved historical challanges, some of which have significant prize money attached to them. There are similarly-styled puzzles hosted on /r/bitcoinpuzzles which have prize money associated with them as well.