CipherChallenge : Message: Matrix Codes

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Message #6260 of 6391 |

Hi all,
Ive been set the challenge by one of my fellow Maths
Ungraduates of cracking a code that I claimed was easy
to break.
Basically the Plaintext is put into a 3*3 matrix (P),
and the Codematrix (C), remains constant and is
invertable.
I have three Coded matrices with the same C.
Any ideas?
Thanks,
Simon

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Wed Nov 17, 2004 2:13 pm

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Simon Kilby <skukok@...>

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Message #6260 of 6391 |

Expand Messages	Author	Sort by Date
Hi all, Ive been set the challenge by one of my fellow Maths Ungraduates of cracking a code that I claimed was easy to break. Basically the Plaintext is put...	Simon Kilby skukok	Nov 17, 2004 2:13 pm
Hello Simon ... Probably because I am dumb, but I can't quite understand the explination you gave. But, trying to read between the lines, it sounds a bit like...	Andrew Bruno abruno@...	Nov 18, 2004 12:26 am
... Hi Andrew, Well my explanation was a bit rushed, and not all that clear, first you will need to know how Matrices Multiply, and http://tinyurl.com/6w7yo...	Simon Kilby skukok	Nov 19, 2004 1:06 pm
Hello Simon ... Yes. I shall look at the link now and study it a bit more. Regards -- Andrew Bruno abruno@......	Andrew Bruno abruno@...	Nov 20, 2004 8:29 pm
Hello Simon (What's happened to everyone else?) Well after reading the link you sent and breaking it down to a simple form and from what I understand: For any...	Andrew Bruno abruno@...	Nov 20, 2004 8:45 pm
... From your description, this appears to be the Hill cipher. http://en.wikipedia.org/wiki/Hill_cipher You could conceivably brute force the matrix, presuming...	matt_crypto	Nov 22, 2004 1:37 am
Hello matt_crypto ... Struth! Just had a look at that link and it is written in some foreign language! ;-) I can't understand much of it at all. But I think...	Andrew Bruno abruno@...	Nov 22, 2004 5:12 am
Thanks to everyone whos sent me their thoughts on this, it looks like Matt has found a version of it and will be passing the info to my friend. Ill try to...	Simon Kilby skukok	Nov 22, 2004 1:47 pm

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