"In the scream cipher, messages consist of all As, with different letters distinguished using diacritics."

A scytale is a tool to perform a transposition cipher, consisting of a cylinder with a strip of parchment wound around it on which is written a message. The ancient Greeks & the Spartans are said to have used this tool.

#Cryptography #cipher #Scytale #Espionage

https://en.wikipedia.org/wiki/Scytale

#OnThisDay, May 9, in 1941, the Royal Navy captured German U-boat U-110, recovering an Enigma machine, its cipher keys, and code books (depicted in U-571, 2000)

Interesting find.

ROT13 cipher in ... more languages than you could possibly need, ranging from System/360 assembly to Erlang to BCPL to Logo to Modula-3 to MSX BASIC to SNOBOL4 to ...

https://rosettacode.org/wiki/Rot-13

Here’s a curious mystery. Potential answers (and boosts) welcome!

Saw this canal boat today with an unknown #cipher on the paintwork. The blue symbols obviously translate to ‘puddle jumper’ as well, but what is this cipher?! What’s it’s significance? What does it say about the owner? Never seen these symbols before today.

#OnThisDay, May 9, in 1941, the Royal Navy captured German U-boat U-110, recovering an Enigma machine, its cipher keys, and code books (depicted in U-571, 2000)

#Movies #Film #Cinemastodon #Enigma #U571 #Cipher #Cryptography #Histodons @histodons

特殊装丁本『Cipher』
黒い紙に黒い文字で書かれた“読めない”小説。前半半分をWebで公開しています。
謎めいた雰囲気、ピアノの漆黒、「物語を消費する」ことについての物語。

▼ 試し読み・通販リンク・頂いたご感想・解説など
https://libsy.net/cipher

#SeasideBooks #Cipher #小説 #同人誌 #特殊装丁

i created a simple cipher substation language for my games. this image was one of the puzzles that players needed to decode to help guide them to a passphrase to open up a hidden door.

If anyone is up for a small #cipher #scavengerhunt for the weekend I have something for you. You just have to find it at https://qwertqwefsday.eu/start.txt

It is entirely possible that I broke something along the way, so please ask for hints if you are not getting anywhere. If there is some interaction I will probably publish a solution around 2020-11-29T18:00Z