Discussions of secure PHP coding. Security in software is important, so don't be afraid to ask. And when answering: be anal. Nitpick. No security vulnerability is too small.
Sorry for throwing the thread off topic GWsux. It may be best to create a new thread on this line of discussion unless GWsux wants to continue moving off topic.
In response to your problem GWsux, you can decrypt with mcrypt. Cytography is as much about decryption as encryption. Hashing and mhash are irreversible .
Er, mcrypt is impossible in my position, I have a webhost, and apparently they don't have mcrypt, and I really doubt they would install it for me. But, I don't need encryption anymore, I was going to save some important user info (encrypted) inside a cookie, but now I've thought of a better way using sessions. Thank you all anyway