This is entirely hypothetical, I'm working on securing some data and I want to make sure we do this properly.
If I have a list of information which is encrypted (say, using a 256 bit encryption key) and by chance somebody gets their hand on the list.
In this case, they do not know what the encryption key/method is or any of that. The only thing they know is that X value is equal to "some string".
Using this, I assume they can reverse engineer and find out what the rest of the information is.
What can I do to prevent (or greatly diminish the risk of) them being able to reverse engineer the encrypted data. If I use a longer key, would that make a difference?
