Re: licence key validation method
Re: licence key validation method
- Subject: Re: licence key validation method
- From: Charles Srstka <email@hidden>
- Date: Mon, 12 Jan 2015 22:02:41 -0600
On Jan 12, 2015, at 8:32 PM, Graham Cox <email@hidden> wrote:
>
>
>> On 13 Jan 2015, at 1:18 pm, Charles Srstka <email@hidden> wrote:
>>
>> Now I just put it in plain C/Obj-C functions, because:
>>
>> 1. The assembly is always there.
>
>
> I agree about just using plain code, as the obfuscation is in the source mostly, not the resulting object code.
>
> But if it's built from macros, and then those macros are used whenever you need to check against licensed/unlicensed, then at least that forces a would-be attacker to patch every place, not just one. Chances are the work involved isn't worth the effort.
>
> --Graham
>
Also a waste of time. Once you find one instance of the thing, you can just do a search through the binary of what you found to find all the rest.
Charles
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