Thumbmark Android Flutter

A Flutter plugin for generating device fingerprints on Android. This plugin provides different levels of "volatility" to balance between device uniqueness and stability.

Features

Low Volatility Fingerprint: Generates a stable fingerprint with a lower chance of changing over time, though with a slight possibility of collisions in specific edge cases.
High Volatility Fingerprint: Generates a highly unique fingerprint that is extremely sensitive to device changes (e.g., changes in font size or system settings).

Getting Started

To use this plugin, add thumbmark_android_flutter as a dependency in your pubspec.yaml file.

Installation

dependencies:
  thumbmark_android_flutter: ^0.0.1

Usage

Import the package in your Dart code:

import 'package:thumbmark_android_flutter/thumbmark_android_flutter.dart';

Initialize the Plugin

Create an instance of the ThumbmarkAndroidFlutter class:

final _thumbmarkPlugin = ThumbmarkAndroidFlutter();

Get Platform Version

String? version = await _thumbmarkPlugin.getPlatformVersion();

Get Fingerprints

You can choose between stable or highly sensitive fingerprints based on your security requirements:

// Get a stable fingerprint (Low Volatility)
String? stableFingerprint = await _thumbmarkPlugin.getFingerPrintLow();

// Get a unique, sensitive fingerprint (High Volatility)
String? uniqueFingerprint = await _thumbmarkPlugin.getFingerPrintHigh();

Architecture Overview

This plugin follows the Federated Plugin pattern:

App-Facing Layer: ThumbmarkAndroidFlutter provides the public API.
Method Channel: Handles communication between Dart and the native Android environment.