Decrypt a admin password (with salt)

Hello,

I want decrypt a password which is encrypted by MD5.
there are 4 functions which i am using :

[snip]

please do tell me...

OK. First, it's not possible. The only reason you'd want to do this if you have access to the DB is if you're a hacker.

Second, this isn't a list for this kind of question - that's what rails-talk is for.

--Matt Jones