DLL/SO Extension Signature Checks
This would help prevent clients tampering with extension / replaced with their own version.
2 Methods i can think of..
1st Method
SQF Code wise, seems like easiest way to add it in.
Without breaking anything...
Also allows servers to have a custom extension
"extension_name" callExtensionCheck "signature_key";
return true/false
2nd Method
In the addon config.cpp, u would need to add the
Signature Key
Extension Name (to prevent client loading up same Extension Name in a different addon directory / arma3 root)