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Main Forums => The Roundtable => Topic started by: TechMan on July 22, 2011, 01:40:33 PM

Title: Zodiac Killer 340 Cipher Cracked?
Post by: TechMan on July 22, 2011, 01:40:33 PM
Pretty cool, if it is true.

http://tewksbury.patch.com/articles/tewksbury-native-ive-cracked-the-code-of-the-zodiac-killer#c (http://tewksbury.patch.com/articles/tewksbury-native-ive-cracked-the-code-of-the-zodiac-killer#c)

Quote
According to Robert Graysmith, in “Zodiac,” tips received by police after Darlene Ferrin’s murder indicated that the killing was connected to the U.S Virgin Islands. Starliper believed that the “340” of the 340 cipher was significant, and had some tie-in with the U.S. Virgin Islands. It was then that he found out that 340 is the area code for a portion of the U.S Virgin Islands — not an insignificant connection.

“So that’s what I started with,” said Starliper. “I thought, there’s no way ... that Zodiac is going to be prosaic enough not to mention the U.S. Virgin Islands in this code. This is where it gets even creepier. 3+4+0=7. Right. So you get 7+0=7. 707...707 are the area codes for Vallejo, Napa, and Solano. So I figured, why not start this with Caesar code using 3,4.”

Caesar code is a substitution type cipher where an encoder has “simply replaced each letter in a message with the letter that is three places further down the alphabet,” according to http://www.simonsingh.net/The_Black_Chamber/caesar.html.
Title: Re: Zodiac Killer 340 Cipher Cracked?
Post by: Brad Johnson on July 22, 2011, 01:46:01 PM
If it's the real deal it's a pretty impressive leap of logic and intuition.  Maybe the press exposure will get the guy access to more stuff so his theory can be checked against more messages.

Brad
Title: Re: Zodiac Killer 340 Cipher Cracked?
Post by: Balog on July 22, 2011, 01:56:21 PM
Read the comments. Appears the kid got obsessed and made up a non consistent solution akin to Biblical numerology.
Title: Re: Zodiac Killer 340 Cipher Cracked?
Post by: TechMan on July 22, 2011, 02:08:57 PM
Somebody also noted that the code was 340 characters and the "code breaker" {note the quotes} came up with a message that contains 350.
Title: Re: Zodiac Killer 340 Cipher Cracked?
Post by: 230RN on July 22, 2011, 08:43:04 PM
....
Title: Re: Zodiac Killer 340 Cipher Cracked?
Post by: birdman on July 23, 2011, 09:44:32 PM
What a tool...I call BS.   So he changed the key for each line, until he got a message that made sense to him?  No wonder a real cryptographer told him it wasn't valid.