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There are already ObjC selector obfuscators that generate a random secret and hash all program values with that on each build. https://github.com/Polidea/ios-c

• nekitamo 11y ago
  Thank you, I had forgotten about class guard. It's a great tool, but I recall having problems getting it to work on larger applications. It's also possible for you to remove the ObjectiveC metadata from a binary entirely, obfuscate/encrypt it, and then add it back to the ObjectiveC runtime as needed. With LLVM bitcode this becomes much more difficult (but maybe not impossible...)