Challenge "The SZ42 Challenge — Part 4"  

  By: admin on Aug. 29, 2020, 11:25 p.m.

The Lorenz SZ42, codenamed Tunny, was a German teleprinter encryption device used during WW2. This is the fourth challenge in a series of 13 level-2 challenges with the SZ42. In this "setting" challenge you are provided with only one ciphertext and the patterns for CHI1 and CHI2 wheels are known. Can you find the starting positions for CHI1 and CHI2?

Re: Challenge "The SZ42 Challenge — Part 4"  

  By: madness on Aug. 28, 2023, 9:16 p.m.

What is the "characteristic" that you use to compare to a corpus? I'm only getting a 1.3% difference using that one statistic that will not be named. Is that enough of a signal?

Thanks in advance.

Edit: I have a 4-sigma effect, but the answer is rejected. (4 sigmas is 4 standard deviations above average. Should be highly confident.)

 Last edited by: madness on Sept. 1, 2023, 2:34 a.m., edited 1 time in total.

Re: Challenge "The SZ42 Challenge — Part 4"  

  By: newton on Sept. 4, 2023, 3:56 p.m.

Hi madness,

I looked at your submission and it's wrong. I confirmed with someone else's submission which was correct.

best newton

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