Actually, no, my friend edited our client and added a custom encryption that he coded, along with a modification to our wz files, which allowed them to work with only my client. There was no exploit in maplelib used (AFAIK). So yeah, it's possible and it's been done that way, but for some reason this idiot (Novak) is not willing to accept that l0l. I was hoping someone here with enough knowledge about assembly could help with this, but of course, it requires some work and I don't know enough about appending to the client/assembly to do it myself.
sector I have looked those up, but any WZEncryptor is not going to be enough unless it also modifies the client, because otherwise it's not really an encryption.. (and people will surely reverse it if it's on google).
Either way, it might not be needed now, but I'm still looking if someone is interested in helping.