If you, like me, want to distribute a binary executable program for macOS and introduce at least a minimal level of protection—such as hiding text and literals in the binary or obfuscating the code—you may notice that, as of now (end of 2024), few tools are available for this purpose. Unlike Windows, which has numerous EXE protection software options, macOS developers often find themselves at a disadvantage due to the lack of such tools.

This information may be helpful if you are developing in C or C++ and compiling your program using GCC or Clang.

I found “Hikari”, a custom Clang toolchain: https://github.com/HikariObfuscator/Hikari

Although its page says that it is already deprecated as of 2024, it is still usable and has at least a few actively maintained forks.

Hikari is a modified version of LLVM that incorporates several advanced obfuscation techniques to protect software from reverse engineering. Obfuscation in Hikari essentially transforms the code so that it is functionally the same but is much harder for a reverse engineer to analyze and understand. Here’s an overview of the main concepts and techniques involved in Hikari obfuscation:

1. Purpose of Obfuscation

Obfuscation aims to protect intellectual property, software algorithms, and proprietary logic from being extracted or understood through reverse engineering. By making the code harder to read or follow, obfuscation raises the difficulty of tasks like decompiling, debugging, or reconstructing code logic. It can increase the time, resources, and expertise needed to analyze a binary, deterring attackers or making reverse engineering … >>> Click to read the full post...