This is a little more crypto-oriented, but might be along the lines of what you're looking for. https://gist.github.com/tqbf/be58d2d39690c3b366ad https://gist.

This is a little more crypto-oriented, but might be along the lines of what you're looking for. https://gist.github.com/tqbf/be58d2d39690c3b366ad https://gist.github.com/tqbf/be58d2d39690c3b366ad