Charon

Charon provides a launch platform for dynamic libraries on Mach-O platforms. An encrypted library can be embedded into charon's binary, to be decrypted and loaded at runtime.

Full access to the Swift library makes potential expansions like downloading new binaries or requiring a manually entered decryption key trivial to implement.

Usage

Modify Package.swift to point to your plugin to embed:

linkerSettings: [
    .unsafeFlags([
                    "-Xlinker", "-sectcreate",
                    "-Xlinker", "__TEXT",
                    "-Xlinker", "__charon",
                    "-Xlinker", ".build/debug/libplugin.dylib" // change me
    ])
]),

To use the sample plugin you first need to actually produce the dylib. swift build won't do this on it's own so you'll need to build the plugin product first.

swift buid --product=plugin
swift run xortool .build/debug/libplugin.dylib
swift build --product=charon
swift run charon

Note: If the plugin is not behaving as expected (un-xor'd lib running normally, etc) you may need to clear your .build directory. Sometimes the caching isn't very smart.

Support

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