> Yes - at the moment this is just a way for me to begin to get my head
> around how cryptography works from anabsolutely ludicrously basic
> position. This all started because I couldn't get my head around the
> difference between an encryption algorithm and the key. I thought that
> by writing my own, I would work it out!
Hi Steve,
Yup; it really has to do with numbers. Once we manage that leap, then
it's just a matter of writing functions that transform numbers to other
numbers.
When you want to get more in depth, you may find:
http://mitpress.mit.edu/sicp/psets/ps3/readme.html
useful; it's a fun homework assignment on the RSA cryptosystem. The
support functions are in Scheme, but converting it to Python isn't too
bad.
Best of wishes!
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