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Re: Challenge "The Josse Challenge – Part 1"

 On Feb. 25, 2023, 9:26 a.m.

Hey madness, which email provider do you use? With my private mailserver, since I host it using AWS (amazon web services), hotmail for example refuses to talk.…

Re: Challenge "The Josse Challenge – Part 1"

 On Feb. 10, 2023, 9:20 p.m.

Hey George! Yes, I see. Good spot, thx. I fixed that in the CT2 template and also updated the alphabet and plaintext to the original Josse version in the templ…

Re: Challenge "The Josse Challenge – Part 1"

 On Feb. 10, 2023, 3:57 p.m.

Hi George,

Concerning your remarks :-)

1) Equation:

Concerning the equation: Given in the slides: ci = pi + c(i-1) mod' 25 You want to correct it to: ci = c…

"Cryptography for everybody" Discord server launched

 On Dec. 30, 2022, 11:01 a.m.

Hello cryptography enthusiasts,

We have recently set up a brand new Discord server for the "Cryptography for everybody" YouTube channel and the CrypTool proje…

Re: Crypto Challenge Contest on the CrypTool 2 YouTube chann

 On Aug. 21, 2020, 5:07 p.m.

The 2nd video is online: https://youtu.be/skTodSX68xM

Crypto Challenge Contest on the CrypTool 2 YouTube channel

 On Aug. 15, 2020, 4:45 p.m.

We released our first Crypto Challenge Contest video on the CrypTool 2 YouTube channel, where you can break ciphertexts, win points, and in the end win one of …

Re: Challenge "2019: Differential Cryptanalysis Part 2"

 On Jan. 29, 2020, 5:18 p.m.

Hello,

I am one of the authors of this challenge. We tried to create a challenge which explains how differential cryptanalysis works in practice (clearly, u…

Re: Challenge "2019: Differential Cryptanalysis Part 1"

 On Jan. 29, 2020, 5:17 p.m.

Hello,

I am one of the authors of this challenge. We tried to create a challenge which explains how differential cryptanalysis works in practice (clearly, u…

Re: Challenge

 On June 23, 2014, 6:14 p.m.

Hello there :-),

I just had a look at the "Universal Enigma - Simulator by dp" and found out that the entry rotor differs from the one described in the used…


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