Hey, I am /pretty/ sure that this is possible, but not positive.
Say I have information froma program, and I want to save it so I can read it again later, I know I can and how to write it to a file, and I also already know how to read it from a file.
Now, what I was wondering, is it possible for me to make it so that this information is encrypted in some way, and even make the file not readable or something except by Java so that it doesn't get editted and nothing gets stolen from it.
Is it possible/practical to make my own encryption technique, how complicated would I have to make it.
Can anyone steer me in the right direction on this, I am making a custom program right now and saving stuff but it is so easy for someone to just edit it because normally I save stuff as .txt so its easy to read, even if I make something up and save it as like a .hgfa or something, you can still read it no problem if you open it right >_<, its kind of angering.
Thanks in advance.