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2021-07-08T14:11:27Z

Created page with "*Encyclopedia of observations - A collection of observations about the cipher text *Comparison of cipher alphabets *Comparison of character repetition rates *Com..."

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*[[Encyclopedia of observations]] - A collection of observations about the cipher text
*[[Comparison of cipher alphabets]]
*[[Comparison of character repetition rates]]
*[[Comparison of sequence repetition rates]]
*[[Levenshtein distance analysis]] - A look at the occurrences of repeated sequences that are not exact matches.
*[[Quadrant analysis]] - Do the n-gram counts improve If we split the cipher text into four quadrants?
*[[Quadrant analysis Part 2]] - An expansion of the previous quadrant analysis experiment. Is it possible to produce quadrant arrangements that increase the number and quality of homophones detected algorithmically?
*Information theory (entropy, randomness, etc)
*[[FBI analysis from Dan Olson]]
*[[Cipher-related excerpts from case documents]]
*[[Word frequency analysis]] (word frequencies derived from a corpus of Zodiac correspondences)
*[http://www.zodiackillerfacts.com/forum/viewtopic.php?f=50&t=1339 Omnidirectional repetitions] - An investigation into patterns that repeat in arbitrary directions by following "snake-like" paths.
** (Above link is broken. [http://zodiackillerciphers.com/Zodiac%20Killer%20Forum%20-%20View%20topic%20-%20Omnidirectional%20repetitions.html Click here for an archived copy.)]
*[http://www.zodiackillerfacts.com/forum/viewtopic.php?p=23179#p23179 "Complexification"] - Did the cipher author begin with a simpler set of cipher symbols, then "complexify" certain symbols to further flatten the symbol distributions?
*[[Substring ranking]] - Can we apply measurements that give us a way to find interesting sections of cipher text for focused attacks?
*[[Catalog of repeating fragments]] - A comprehensive list of portions of cipher text that occur more than once in the cipher text.
*[[Cipher Legitimacy]] - Are the Zodiac ciphers real, or are they hoaxes?
*[[Corpus Experiments]] - A collection of corpus-based experiments performed on the Zodiac ciphers
*[http://zodiackillersite.com/viewtopic.php?f=81&t=2617 Outline of ongoing work on Z340]
*[http://zodiackillersite.com/viewtopic.php?f=81&t=2916 Another outline of ongoing work on Z340]

Articles and details about the 340 - Revision history

Admin: Created page with "*Encyclopedia of observations - A collection of observations about the cipher text *Comparison of cipher alphabets *Comparison of character repetition rates *Com..."

Admin: Created page with "Encyclopedia of observations - A collection of observations about the cipher text Comparison of cipher alphabets Comparison of character repetition rates Com..."