Zodiac Discussion Forum

Jarlve
Jarlve
@jarlve
Famed Member
Joined: September 7, 2014 6:51 pm
Last seen: February 21, 2023 3:28 pm
Topics: 58 / Replies: 2487
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Re: z408 – Encryption Mistakes – A Deep Dive?

Thanks for explaining, it is clear now. It is based on the assumption that, in his key, he probably had each symbol listed one after the other, star…

4 years ago
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Re: z408 – Encryption Mistakes – A Deep Dive?

Welcome to the forum Teg>Ean. I have to admit that I understand very little of what you are saying. Is it possible for you to list the points that …

4 years ago
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Re: Homophonic Solvers in C++ and Java

Just cheerleading a bit…KEEP DIGGING GANG! You guys that work on these ciphers might one day find something big! Thanks morf13! The below comment…

4 years ago
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Re: Homophonic Solvers in C++ and Java

If we look at the AZdecrypt scoring formula then I would say that there is no magic number involved: ngram_score_sum/ngrams*entropy. There is a n-gra…

4 years ago
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Re: Route Transposition and Phenomenon

Only one cipher remains unsolved now. That’s good because it can now be focused upon. I will again look for optimizations this weekend and start the a…

4 years ago
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Re: Route Transposition and Phenomenon

Thanks. Here is a .7z that contains a build of AZdecrypt with the new Polyphones menu and Hafer solvers etc. Also included are a size reduced version…

4 years ago
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Re: Route Transposition and Phenomenon

The 6th one: *%dZ9|bVz#6S;3Db) MKUzd#-F3&.C>yKT: zlV5j9DM9:;7yj2bZ /XHGAXNlfqFG3X-3T kS9<ZN2ATYZy7Mf%) H8pUj|RD^Z5zB(dM. %MXtNq%…

4 years ago
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Re: Route Transposition and Phenomenon

It is not easy and I’m still working on this. I’ve optimized the solver to the point where I am happy for a first version and are now running through …

4 years ago
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Re: Homophonic Solvers in C++ and Java

Thanks for sharing f.reichmann. The problem with the hill-climber is that it is permanently stuck in local optima, until it finally has a lucky star…

4 years ago
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Re: Route Transposition and Phenomenon

So for longer ciphers, it might be better to split them into smaller ones since they might solve more easily. If so, I wonder if a "sweet spot&qu…

4 years ago
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Re: Route Transposition and Phenomenon

I am wondering about the key space. Normally it’s just 26^63. But with, say,13 possible N values, and 2 choices (+/-) for each of 340 plaintext positi…

5 years ago
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Re: Route Transposition and Phenomenon

I just checked my ciphers again and, oops, I accidentally included one that was in French but didn’t notice it. Sorry about that. They were random s…

5 years ago
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Re: Route Transposition and Phenomenon

It is not easy and I’m still working on this. I’ve optimized the solver to the point where I am happy for a first version and are now running through …

5 years ago
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Re: I am not the Zodiac killer.

First ya find this here chicken, see. Then ya gotta Kill the downy sommitch. This ain’t always too dam easy, neither. "Here, Chicky, Chicky"…

5 years ago
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Re: Route Transposition and Phenomenon

Nice work, Jarlve! Can you explain the difference between "user + extra letters" and "increment extra letters"? Hoping that this…

5 years ago
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