1. CryptedHelloWorld: App with encrypted mach-o sections

    In a previous post ( constructor and destructor attributes ), I described the constructor attribute and mentioned software protection as a possible use case: A constructor attribute could be used to implement a software protection. You could encrypt your executable with a custom encryption and use a constructor function to decrypt the binary just before it is loaded. In this post I describe such a protection with an example.
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  2. constructor and destructor attributes

    GCC (and Clang) supports constructor and destructor attributes: __attribute__((constructor)) __attribute__((destructor))
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