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Sgt. Pepper






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Re: Challenge

 On July 23, 2020, 11:12 a.m.

Are the plaintexts supposed to be in german, like in the examples?

Re: Challenge

 On Jan. 30, 2020, 4:35 p.m.

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

Re: Challenge

 On Jan. 10, 2019, 3:44 p.m.

Will the publishing date and thus the received points also be corrected?

Re: Challenge

 On June 14, 2018, 10:40 p.m.

Yes, it did, thank you!

Re: Challenge

 On June 14, 2018, 2:16 p.m.

I'm pretty sure I got the right d and recovered m (I checked m^e mod n == c), but I'm unable to convert m to ascii text. All standard bin-to-ascii conversions,…

Re: Challenge

 On Feb. 9, 2018, 2:49 a.m.

I'm also having problems submitting the solution in the right format. I'm pretty sure I got everything right, but nothing is accepted…

Re: Challenge

 On April 11, 2017, 6:43 p.m.

Thank you! However, I got another problem:
When trying to decrypt the example-holograms, I can't exactly reproduce the plaintext-phase (the amplitude is fine,…

Re: Challenge

 On April 10, 2017, 9:37 p.m.

Is the masklevel N in this challenge 255 or 9?
In the program, the masklevel is fixed at 255, but if the values of the masks used here vary between 0 and 9 on…

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