Do you need the whole solution or just a way to validate answers against them? The first n characters of a hash would work for the latter. For the former I'd en

Do you need the whole solution or just a way to validate answers against them? The first n characters of a hash would work for the latter. For the former I'd encode it into something like base-122[0] or something else equally esoteric. [0]http://blog.kevinalbs.com/base122 http://blog.kevinalbs.com/base122