Click here
to get free "Solve a Cipher" app from Chrome Web Store.
(Requires Chrome web browser)
If you are an ACA member click here to submit a con to the Analyst Corner.
Click here for notes, slideshow,and demo programs on word list scoring
and parsing strings of letters into words.
Click here for info on a strange but effective hill-climbing algorithm
Click here for notes on solving Quagmire IV ciphers without a crib.
Click here for Statistical Reference guide to the ACA ciphers
Got an unknown cipher? Click here to compare it with the ACA cipher types
Click here for notes on a new method of solving headline puzzles.
Click here for some challenging ciphers to solve.
Click here for list of online solvers for various cipher types.
Click here to
construct a Numbered Key cipher, and here
for more info about numbered key ciphers.
Click here to
make a headline puzzle or
here for
an
alternate encoder. Slower, but with more options.
Click here to do Double Chaining for headline puzzles.
Click here for cipher map.
Click here for some links related to the hobby of code breaking
Click here for three Sudoku solving algorithms.
Click here for
a remark on solving Grandpre and Numbered Key ciphers
without a crib.
Click here for notes on solving Gromark ciphers with unknown primers.
Click here for
online program that generates top 100 primers for a
Gromark cipher. (requires Java enabled web browser)
Click here to download Digrafid crib dragging zip file
Click here
if you have a batch of plaintexts to encrypt as
Patristocrats or Aristocrats.
Click here
for online encoding - decoding of most ACA
cipher types.
Constructing a Patristocrat? Click here
to estimate solving difficulty
based on the plaintext.
Solving a polyalphabetic cipher?
Click here
to get its periodic indices
of coincidence.
Click here
for AAHJU's Vigenère family ID test.
(Warning: Need fast
web browser such as Safari, Chrome or Opera).
Click here for online Portax slide simulator.
Click here for AAHJU's Portax ID test.
Click here for Caesar-shift Calculator.
Click here
to load encode-decode program for CONDI cipher type
(see SO 2011 Cryptogram).
Click here for a Cryptarithm Helper.
Click here to calculate the inverse of a transposition key
Click here
for my current list of Grandpre & numbered key ciphers that
I can or can't solve without a crib and some stats that correlate with
solvability. (Note: contains abbreviations and obscure terminology)
Click here for test version of "Solve a Cipher" app for the Kindle Fire.
Click here
to play a silly little crypto-game (requires Adobe Flash
player, version 9 or higher.)
