How much security do you want?

If your strings are basic ASCII, then their value is ASCII 32 to 126.  You can 
just bit shift the ASCII values (+128), store the ASCII value, or zip the 
strings.

On Aug 8, 2012, at 4:37 PM, Jean-Daniel Dupas wrote:

> 
> Le 8 août 2012 à 22:15, Rick Mann <rm...@latencyzero.com> a écrit :
> 
>> On Aug 8, 2012, at 12:58 , Leo <le...@rogers.com> wrote:
>> 
>>> As I recently learned, plain strings are stored "as is" in the executable 
>>> and can be discovered - if opening it in a text editor, for example.
>>> 
>>> That is, if I have a string @"myString" inside the code, it can be read in 
>>> plain text inside the executable.
>>> 
>>> I have a couple of string I don't want to be discovered (related to demo 
>>> period handling).
>>> 
>>> Is there an easy way to store them in an encoded way?
>>> 
>>> I tried to define them as C strings (const char) but it doesn't make a 
>>> difference.
>>> 
>>> 
>>> So far I just break them into characters in AppleScript Editor, add @ in 
>>> front of each with find-replace, and then store them as an array which 
>>> receives the -componentsJoinedByString: method.
>>> 
>>> Is there an easier way?
>> 
>> There's no truly secure way to do this. About the best you can do is encrypt 
>> the strings, but people can crack it if they want to badly enough. Depending 
>> on how much effort you want them to go through, you can do any number of 
>> things to encrypt, from simple to complex.
>> 
>> You might also consider requiring a connection to a server to see if you 
>> should run. But given enough interest, you will get p0wned eventually.
>> 
> 
> Requiring a connection to check license is the best way to bother legitimate 
> customers, while being totally ineffective to stop your application to being 
> cracked.
> 
> I would not bother to much to hide strings. There is far more information in 
> the binary that can be used to crack it, like the full objc metas.
> 
>> -- 
>> Rick
> 
> -- Jean-Daniel
> 
> 
> 
> 
> 
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