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#cipher
It's hard to truly innovate on books, so I'm glad a friend recommended "S." by Doug Horst, also known as The Ship of Theseus by V. M. Straka, also known as the book J. J. Abrams produced more than ten years ago. There is at least one enciphered message in it that hasn't been cracked. Any takers?
https://app.thestorygraph.com/books/6eb1ad19-8289-4db5-953c-d0bc2b80af44
https://whoisstraka.wordpress.com/2018/04/24/the-musical-cipher-in-s/
EPROM-based Enigma Machine https://hackaday.com/2025/03/12/eprom-based-enigma-machine/ #computerhacks #classichacks #encryption #colossus #Cipher #eeprom #enigma #bombe #WW2
EPROM-based Enigma Machine - The Enigma machine is perhaps one of the most legendary devices to come out of Wor... - https://hackaday.com/2025/03/12/eprom-based-enigma-machine/ #computerhacks #classichacks #encryption #colossus #cipher #eeprom #enigma #bombe #ww2
Well, yesterday I said I'd found a fave new website for cipher puzzles, only to find it was severely curtailed by its idea of timing between puzzles. I went looking for others and found a better one: api.razzlepuzzles.com/cryptogr…
NOW I've found a fave new website for sure.
I've encoded a POEM w/ Affine cipher
Way to get the key:
a= 
b= 
Decipher this:
Yqb tevy ydout tkznkx, h gohlohuy ybhtb,
Wzubo fbmhm, h rdkvuhox mobbcb.
Khxbot zg pbhy, tz yqvukx tkvrbw,
H txpeqzux zg gkhizot, uvrbkx tevrbw.
#Cipher #Puzzle #CodeBreaking #Quote
First one solve gets a virtual hi5 :) and a artistic potato picture
This is such a neat cipher! xD
https://xkcd.com/3054/
"In the scream cipher, messages consist of all As, with different letters distinguished using diacritics."
SECRET - I made a new Youtube channel tag but you can only see it if you decode the message.
Pyvpx urer gb frr gur arj punaary gnt:
uggcf://lbhgh.or/GDdo-7CvLUH
taking walks in the landscapes of my childhood nothing is like it was - the forests are gone - the trees are dead thanks to the bark beetle and too dry summer days. the character of the landscape, originally shaped by dark humid green has turned into a desert with sun-bleached stumps like dry bones
#font #cipher #cryptographic #enigma #typeface #barkbeetle #moki #mioke #woodensticks #decipher #secrets #secretlifeoftrees #beetlefont #insecthole #message #climatechange
taking walks in the landscapes of my childhood nothing is like it was - the forests are gone - the trees are dead thanks to the bark beetle and too dry summer days. the character of the landscape, originally shaped by dark humid green has turned into a desert with sun-bleached stumps like dry bones
#font #cipher #cryptographic #enigma #typeface #barkbeetle #moki #mioke #woodensticks #decipher #secrets #secretlifeoftrees #beetlefont #insecthole #message #climatechange
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.
'cipher period'
'periodic range'
'periodic limit'
'periodicity'
This is not to be confused with 'cryptoperiod' or 'key period' or 'key time domain' which refers to the time a key is valid.
The 'period' refers to the length of the cipher stream or generator stream before it repeats from the initial keying or initialization state. Some ciphers may be considered unsafe before reaching this generator period for other reasons, such as mode mixing.
For example we might say the generator period is 2^155337 which means after generating that much data the stream would cycle back to its initial values. If the amount of data fed into the cipher stream exceeds the period then security is compromised (theoretically, in practice it might be unnoticed by an attacker).
Last I checked AES has a period of something like 2^39 - 256 for the same key. Your key schedule should be automatically handling that anyway to a much smaller limit.
The cipher period limitation may be referred to as:
'maximum safe ciphertext length' or 'maximum safe message size'
#cryptography #cipher #cryptanalysis #cryptology #crypto #math #encryption
#TIL The CIA CSI has switched to PDF.
The VIC #cipher paper:
https://www.cia.gov/resources/csi/studies-in-intelligence/archives/vol-5-no-4/number-one-from-moscow/
I should be cleaning, but got distracted typing numbers. So I now have a rough draft of the hollow nickel message.
There's definitely errors. Some characters I didn't want to even guess, but that's OK. 17 year ago me already typed in the original plain text. I can encrypt that & check it.
There's so much more info about the #cipher now, but I can't find any text from the hollow bolt, and no one else seems to have typed the nickel. So- here. https://gist.github.com/AdamOnza/a21f49017f4e622dcb013cd4d3583067
