Geometric Cyphers

I will be putting up some of my old posts, like this one.

I have been enjoying Geometry the last few weeks. I love it! Who wouldn't enjoy practical logic puzzles that involve mathematics? I also love cryptology. One of the many ways of encrpting information is by using a geometric shape, such a triangle, rombus, rectangle, or square, to scramble the letters of a message in a fashion that is easily reversed... if you know or can find the correct shape.

For example, take the message "Come at once." in a triangle:

C
AO
NTM
ECOE

The message can now be read as: CAONTMECOE, with spacing as disired, sets of 5 are traditional, but various sets of random lengths may cause a code breaker to try breaking it as a substitution code. It can also be read as: ENACCTOME, ECOENTMAOC, or CANEOTCMOE.

Below, I have a sample that you can try to decrypt, it is a very simple one, I used one of the shapes mentioned above, and the text, once properly arranged, is easily read left to right. The dash in the code is an empty square in the shape. Graph paper is very useful (if you do not use a computer).

TTTH HHHI EEES HGFH ELIA AORN VRMD EYAY NOMW
SFEO DGNR EOTK CDSP LAHS ANOA RDWL E-SM

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Commencement

I have a boring blog: I hardly ever post and when I do it is usually not even something original. Something must be done. Due to the lack of privacy on the Internet; I do not wish to maintain a blog containing information of personal activities, beliefs (though some will probably slip through), photos, Et cetera. Therefore, I am completely restarting this blog. My new blog will be called A Study in Purple, a play on the title of Sherlock Holmes' first adventure recorded by Dr. Watson: A Study in Scarlet. It will be an academic blog featuring articles about Science, Mathematics, Cryptography, Classical Music, Foreign Language, or whatever catches my interest. My goal is to post at least once a month, we'll see how it goes. I am finally getting around to restarting, and it happens to be at the exact date I began this blog on 1 July, 2011.

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