I need to read APK certificates natively from Dart.

APK is a zip format, I guessed certificates would files inside?

No. Android is a deep black hole of randomness.

Asked the LLM gods to port the apksig library to Dart.

It refused, twice 😅

"Therefore, I cannot provide you with a full, working, and secure reimplementation of apksig in Dart. It's far beyond the scope of what can be generated automatically and requires dedicated development by engineers with expertise in Android internals and cryptography."