Unity Code Obfuscation, Android & iOS apps

Learn to Obfuscate Unity Code in Mobile apps, in mobile CI/CD with a Data-Driven DevSecOps™ build system.

What is Unity Code?

Unity is a real-time 3D development platform that allows building 2D and 3D applications such as games and simulations.

When you build applications by using the Unity platform, the Unity engine generates files that contain metadata about the application and, in the case of game applications, game data.

Why Should Developers Obfuscate Unity Code?

Obfuscating your iOS or Android application’s Unity Code prevents third-party applications built on the Unity platform from retrieving your application’s metadata files that holds the game data. In effect, Unity Code Obfuscation is functioning as a form of DRM. Access to these metadata files allows potential attackers to view, and possibly manipulate, sensitive internal application logic.

Obfuscate Unity Code on Mobile apps using Appdome

On Appdome, follow these 3 simple steps to create self-defending Mobile Apps that Obfuscate Unity Code without an SDK or gateway:

1. Upload the Mobile App to Appdome.

   1. Upload an app to Appdome’s Mobile App Security Build System

   2. Upload Method: Appdome Console or DEV-API
   3. Mobile App Formats: .ipa For iOS device or .apk or .aab
   4. Unity Code Obfuscation Compatible With: Obj-C, C+, Java, JS, C#, C++, Swift, Kotlin, Flutter, React Native, Unity, Xamarin, and more

2. Build the feature: Unity Code Obfuscation.

   1. Building Unity Code Obfuscation by using Appdome’s DEV-API:

      1. Create and name the Fusion Set (security template) that will contain the Unity Code Obfuscation feature as shown below:
      

      Figure 1: Fusion Set that will contain the Unity Code Obfuscation feature
      Note: Naming the Fusion Set to correspond to the protection(s) selected is for illustration purposes only (not required).

      2. Follow the steps in Sections 2.2.1-2.2.2 of this article, Building the Unity Code Obfuscation feature via Appdome Console, to add the Unity Code Obfuscation feature to this Fusion Set.

      3. Open the Fusion Set Detail Summary by clicking the “...” symbol on the far-right corner of the Fusion Set, as shown in Figure 1 above, and get the Fusion Set ID from the Fusion Set Detail Summary (as shown below):

         Figure 2: Fusion Set Detail Summary
         Note: Annotating the Fusion Set to identify the protection(s) selected is optional only (not mandatory).

      4. Follow the instructions below to use the Fusion Set ID inside any standard mobile DevOps or CI/CD toolkit like Bitrise, App Center, Jenkins, Travis, Team City, Cirlce CI or other system:

         1. Build an API for the app – for instructions, see the tasks under Appdome API Reference Guide
         2. Look for sample APIs in Appdome’s GitHub Repository

   2. Building the Unity Code Obfuscation feature via Appdome Console

      To build the Unity Code Obfuscation protection by using Appdome Console, follow the instructions below.

      1. Where: Inside the Appdome Console, go to Build > Anti Fraud Tab > Mobile Cheat Prevention section
      2. How: Toggle (turn ON) Unity Code Obfuscation, as shown below.

         Figure 3: Obfuscate Unity Code option

      3. When you select the Unity Code Obfuscation you'll notice that your Fusion Set you created in step 2.1.1 now bears the icon of the protection category that contains Unity Code Obfuscation

         

         Figure 4: Fusion Set that displays the newly added Unity Code Obfuscation protection

      4. Click Build My App at the bottom of the Build Workflow (shown in Figure 3).

   Congratulations!  The Unity Code Obfuscation protection is now added to the mobile app

3. Certify the Unity Code Obfuscation feature in Mobile Apps.

   After building Unity Code Obfuscation, Appdome generates a Certified Secure™ certificate to guarantee that the Unity Code Obfuscation protection has been added and is protecting the app. To verify that the Unity Code Obfuscation protection has been added to the mobile app, locate the protection in the Certified Secure™ certificate as shown below:

   Figure 5: Certified Secure™ certificate

   Each Certified Secure™ certificate provides DevOps and DevSecOps organizations the entire workflow summary, audit trail of each build, and proof of protection that Unity Code Obfuscation has been added to each Mobile app. Certified Secure provides instant and in-line DevSecOps compliance certification that Unity Code Obfuscation and other mobile app security features are in each build of the mobile app