I'm using a demon server which is shared with other users, I don't think I can install and run the C based md5. It is only needed for hashing 8 characters or so of password. When I tried one of the perl based md5, the server still looked in @inc (which I do not have access to) for the md5.pm file.
And when I tried the other one, I got an error:
"Can't locate object method "new" via package "MD5" at..."