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Re: Challenge Purple

 On March 10, 2014, 5:08 p.m.

May I assume that the plain text is in English ?

yes, the plain text is written in english.

best regards,
jomandi

Yes, jomandi is c…

Re: Challenge

 On Sept. 18, 2013, 12:33 a.m.

This behavior was intentional by the programmer. If the right and middle rotors are both at a notch, then the middle rotor steps 2 positions—once as it ratchet…

Re: Challenge "Sigaba Part 2"

 On March 7, 2013, 8:15 p.m.

I think, the challenge Sigaba2 is not solvable because there is not only a problem with the reversed rotors but also with the not reversed rotors.

T…

Re: Challenge "ORYX Stream Cipher Part I"

 On Jan. 11, 2013, 4:21 p.m.

George,

That sounds kind of strange. If you send me your X,A,B register fills, I'd be glad to take a quick look.

Mark Stamp

Re: Challenge

 On Aug. 8, 2012, 2:55 a.m.

Hello,

could you reveal how many characters does the plaintext has, because it will help me evaluate a complex procedure in which too many parameters…

Re: Challenge "CMEA 1"

 On Feb. 16, 2012, 9:50 p.m.

h3po,

When I use the CMEA program and the default key, I find that 0x0d0a00 encrypts to 0x2ee630, and 0x2ee630 decrypts to 0x0d0a00. However, I'm not able t…

Re: Problems with the format of the solution...

 On Nov. 14, 2011, 3:04 a.m.

I have decrypted the text and have the plaintext, permutations, initial positions, …

The problem is, that the system does not accept the solution. I …

Re: Challenge

 On Oct. 30, 2011, 6:06 p.m.

These are all good questions/comments. Clearly, there can be no unique solution as the problem is stated. So, here's some additional info that will help: All l…

Re: Challenge "Purple 1"

 On Oct. 30, 2010, 12:05 a.m.

Hi,

i don't get the part with the initial permutation.
Does it really mean that i have to test all 26! permutations of the alphabet A-Z ???
Tog…

Re: Challenge "Sigaba Part 1"

 On Oct. 27, 2010, 5:44 p.m.

Hi Ralf,

maybe the wording in the challenge text is a little bit confusing but the given plaintext appears AT THE BEGINNING of the searched plaintext…


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