yeh... ahhh... what crosswire said.... yeh but as i said before since this is just a SBA pro that wouldnt be much of an issue... but if i were to implement an app that needed some form of encryption there are many prebuilt API's of encryption algorthms out there eg, Triple DES, swordfish, etc etc... it does not make sense trying to create your own encryption methods... a great deal of research has been put into developing these algorthms, and even then some of them have been cracked. If i were you i would research on these encryption methods already implemented and choose the best one for whatever application u would work on in the future