well i can tell you that in fact its possible i have the same encipher / decipher with the key that nostalrius was using few months ago so i can encrypt decrypt it to use for my own purposes just changing the ip and faking the protocol in my server, the problem is, as you said that i cannot make source editions or if i use another otc exe the cam module wont work so it's very limitated
there is the module , i can't share i mean i wont share xD the encipher / decipher or otc exe that works with these modules
enjoy
@chupaescadatri