Reversing Flutter apps: Dart’s Small Integers

This article delves into the reverse engineering of Dart executable or Flutter release applications. We focus on the reverse engineering of byte arrays.

No type for bytes

Dart does not have a specific type for bytes, it only has integers (int). Byte arrays are typically coded as Uint8List objects, a class dedicated to representing fixed-length list of 8-bit unsigned integers. It reduces bit waste in comparison to List<int>, where each byte would only use 8 bits of 64… Uint8List …

applications apps article class dart engineering flutter focus length list malware analysis release reverse reverse engineering reversing