Then it struck me, what use is this in writing software? I heard it can generate random numbers is it true? how? This can be easily turned into a nice toy you can watch for hours (at least I could 🙂 def lfsr(seed, taps): However, this is just meant to show how it circles through its possible states, in fact you noticed the register is represented by a string. I named "xor" the output of the XOR function, not very correct.
Here's the cleanest thing I could come up with after some lenghtier attempts (Python): def lfsr(seed, taps): To be more precise, that somehow showed how a LFSR works. So I wanted to write some small code for a program that worked like a LFSR. It took me some effort to understand, the final help was this really good page, much better than the (at first) cryptic wikipedia entry.
Lately I bumped repeatedly into the concept of LFSR, that I find quite interesting because of its links with different fields and also fascinating in itself.
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