CAUTION: This is not 100% secure!!!
Basicly, what we're gonna use is Obfuscating.
- http://iosdevelopertips.com/cocoa/obfuscation-encryption-of-string-nsstring.html
- https://github.com/UrbanApps/UAObfuscatedString
The source: https://stackoverflow.com/questions/544463/how-would-you-keep-secret-data-secret-in-an-iphone-application