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Re: Challenge Purple

 On March 10, 2014, 1:31 p.m.

May I assume that the plain text is in English ?

yes, the plain text is written in english.

best regards,

Re: Challenge "Typex — Part 1"

 On Sept. 15, 2013, 12:06 p.m.

i checked your sequence, and it is correct.

the step 26->27 in detail:
`after 26 steps you have EMA

checking all 9 notches (ACEINQTVY) for RotorR and Roto…

german or english?

 On Aug. 25, 2013, 1:25 p.m.

the text contains english and german passages.

it is a concatenation of texts. some of them are in german, some in english.

best regards,

Challenge "ORYX Stream Cipher — Part 3"

 On May 17, 2013, 10:49 a.m.

in the function genKeystream(…) in the original ORYX-code there is the codeline

keystreamByte[i] = (L[high(A)] + L[high(B)] + high(X)) & 0xff;this is th…

Re: Challenge "Snow White and the seven dwarfs"

 On April 20, 2013, 7:42 p.m.

Does the windows version of Snow also decrypt this? I can't install Java because apparently Sun is hosting corrupted files.

Yes it does.

the file, wher…

Challenge "Cascading Encryption — Part 2/3"

 On March 28, 2013, 11:22 a.m.

the information in the solution of the first part of "Cascading Encryption" and the challengetext for the second part raise some questions:

  • are both transp…
Re: Challenge "Multilingual Monoalphabetic Substitution"

 On Feb. 16, 2013, 1:22 a.m.

i was on the right way before and had the right "meaningful word".

my problem was, that it was too short to find the solution.

with the help of hint 2 i …

Re: Challenge "Multilingual Monoalphabetic Substitution"

 On Feb. 15, 2013, 3:35 p.m.

since it is a level 1 challenge, it should not be so difficult to find the solution.
unfortunately i am stuck and not able to find it.

is it possible, to g…

Re: Challenge

 On Jan. 27, 2013, 10:50 p.m.

the challenge is to calculate the following signature:
f1(x1,..,x39) = 4 mod 17
f2(x1,..,x39) =12 mod 17
f13(x1,..,x39)=10 mod 17

when you take th…

Re: Challenge

 On Jan. 27, 2013, 9:19 p.m.

the format should be like in the following example:


if you want, then…

Re: Challenge

 On Oct. 8, 2012, 12:54 p.m.


in your results (without reduction modulo 17) the 4th and the 6th value are in both examples approximately 2 times the value, that it should be…

Re: Challenge "BCR code (Book-Caesar-RSA)"

 On Sept. 13, 2012, 3:43 p.m.

the solution is now accepted with the additional spaces. thanks for the help.

best regards,

Re: Challenge "BCR code (Book-Caesar-RSA)"

 On Sept. 13, 2012, 2:28 p.m.

is it possible, that the evaluation of the solution does not work correctly?
i have a solution and i am almost sure that it is correct (i checked it some time…

Re: Challenge

 On July 6, 2012, 2:49 p.m.

Is hint #2 really only a hint for step II, or for both steps?

…as is said.

Do not care about second hint until you can …

Re: Challenge

 On April 21, 2012, 2:43 p.m.

until now i have tried 7 solutions of the challenge, which fulfill the expected conditions.

for this type of challenges there exist always infinitely many …

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