Paul Johnston has created an open source JavaScript library that allows you to Create MD5 Hashes. His script is being used by the likes of Yahoo! for all of its non-SSL logins. I was recently working on an ASP webapp where I needed to create an MD5 hash and through my research found that ASP did not have any native functions to create MD5 hashes. So after doing a Google search, I came across his script. As we develop all our ASP using JavaScript, the library worked very well for us.