Fibonacci rules?

[dingrite]

Does anyone have a good fibonacci rule?
I started writing one but then realized just how much work it is to do properly by hand.

You would be surprised how often educated people use fibonacci variations in their passes. I bet some of you reading this have done this.

[royce]

I would expect that a general hybrid attack (that tries a variety of number combinations, not just Fibonacci) would almost always be the way to go here. Unless maybe it was A) a very slow hash, and B) a user population known to be math geeks.