Yes, them use md5, the auroracoin forum use the traditional forum salt that is more hard to decrypt.
but with a good pay decoder with trillion hashes decode it no can be hard.
examples (hashes get from freecoinworld):
30fca77cebf16fe3c5b5b4db4371dee4 - cinta3segi
842df9fecdc99ad5aea6deb7ab117ae0 - me4ta12345
One question, how does anybody crack those codes? Isn't it right that it takes long time to bruteforce those codes? Isn't that the whole point of hashing passwords, to make them practically uncrackable?
At least this guy is doing it:
http://redd.it/2erai6The point is that it does take some effort (computing power) in order to crack a hashed password. With that being said, it is possible to make an unlimited number of attempts to crack the password, while if you were trying to log in via a website you would be limited as to your total number of attempts and the time between attempts.