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Re: Challenge

 On June 25, 2020, 9:24 p.m.

@Victor: Solving the challenge was straightforward, I think there are no errors. The solution format as specified in the PDF also seems to be ok, my solution w…

Re: Challenge

 On Feb. 20, 2020, 8:41 p.m.

Ok, I found the problem. Small hint for all future solvers: the negation sign that is given in the PDFs is not the same as is used in the Python script and exp…

Re: Challenge

 On Feb. 20, 2020, 8:24 p.m.

Same problem here. I found both solutions, but none is accepted. Why do you have to make it so difficult to enter the key? Why the need to transform it to anot…

Re: Challenge

 On July 11, 2017, 2:48 p.m.

Hi Silva,

I don`t know how to continue after de bigram frequencies.

Surely you don't mean german (de) bigram frequencies? The plaintext is in english. …

Re: Challenge

 On July 25, 2014, 4:04 p.m.

Ich glaube, dass dein m doch noch falsch ist. Ich habe m=2..8 (dezimal).

Error with Points on Challenge "From Russia with Love"

 On Sept. 4, 2013, 8:44 p.m.

Bei der Punkteberechnung scheint hier noch etwas schief zu laufen. Wenn ich die Punkteformel richtig interpretiere sollte ich für d=0 nicht 0 Punkte kriegen, s…

Re: Chipper text with partly source message

 On Nov. 9, 2012, 3:39 p.m.

Of course! I messed up the spacing in 2 lines, that got me confused…

007488 = 0x1d40 = 00_01110101_000000 => u
007296 = 0x1c80 = 00_01110010_000000 => r…

Re: Chipper text with partly source message

 On Nov. 9, 2012, 2:37 p.m.

It seems to go like that:

Take the base64 decoded string and group it like that:

007168 000888 014720 000388 000444 000512 000388 025600 007488 007296 00…

Re: Challenge "Unknown Author"

 On Sept. 15, 2012, 10:19 a.m.

The complete book is available at google books:

Re: Challenge

 On March 21, 2012, 6:48 p.m.

I agree, that was fun to solve. Thank you, Lena. [HTML_REMOVED]

Re: Challenge "Not-so-Secret Message from Malawi – Part I"

 On Aug. 13, 2011, 1:25 p.m.

Be careful here. If you place the brackets like that, floor calculates the floor of the integer, and not of the square root, as you probably intended. So Maple…

Re: Challenge

 On March 11, 2011, 7:04 p.m.

In welchem Format wird die Lösung denn erwartet?

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