As an aside, there is a web safe variant of base 64 encoding you could use if you feel hex encoding produces excessively long urls. http://en.wikipedia.org/wik

As an aside, there is a web safe variant of base 64 encoding you could use if you feel hex encoding produces excessively long urls. http://en.wikipedia.org/wiki/Base_64#URL_applications http://en.wikipedia.org/wiki/Base_64#URL_applications