How to encode or hide iOS app files?

Question

i have an iOS App which loads and .txt file from app's root. If i use iFunBox or any iPhone Browsers i can see that .txt file, how can I hide it? I think it's all about security of this file, encode/decode. Please help me. Any advice, source codes, examples. I'm new here. thanks

Answer 1

The short answer: You can't

The long answer: No matter what you do, you will end up having a copy of the decrypted contents in memory at some point so a crafty cracker will be able to copy the contents out of memory. The best you can do is make it not worth their trouble. This includes using pure C, never storing the contents in one variable (always concat, etc), and encrypting the file with an industry standard encryption like AES-256. Good luck.