Zip ZipSigner for Android NDK Magisk / Kernelsu Module

The Zip & ZipSigner for Android NDK module is a tool primarily designed for developers working with Android apps and system modifications. It provides the necessary tools to sign and align ZIP files, which is a crucial step in making Android packages installable.

Key features:

• Zipsigner: A Java-based tool used to digitally sign APK (Android Package Kit) files and other ZIP files. Signing ensures the authenticity and integrity of the package.
• Zipalign: A tool that optimizes ZIP files to improve the way Android loads them, potentially reducing memory usage and improving performance.
• Wrapped dexed zipsigner.jar: A pre-compiled version of the zipsigner tool included in the module for convenience.
• Static binaries: Pre-compiled versions of the zip and zipalign tools for ARM and ARM64 architectures, eliminating the need for additional dependencies.

How to use:

1. Install the module: Download the module from the Magisk Modules Repo (https://github.com/Magisk-Modules-Repo/zipsigner) and install it using a Magisk module installer.
2. Access the tools: After installation, the zipsigner, zip, and zipalign tools will be available in your device’s command-line environment.
3. Sign a ZIP file: Use the following command to sign a ZIP file (e.g., an APK):

   zipsigner -sigFile CERT.RSA -keyFile CERT.PK8 input.zip signed.zip
   

   Replace CERT.RSA and CERT.PK8 with your signing certificate and private key files, and input.zip with the ZIP file you want to sign.
4. Align a ZIP file: Use the following command to align a ZIP file:

   zipalign -v 4 signed.zip aligned.zip
   

   Replace signed.zip with the signed ZIP file.

Additional notes:

• The module is primarily intended for users with a basic understanding of Android development and command-line tools.
• If you’re unsure how to generate signing certificates, consult Android developer documentation for instructions.
• For detailed instructions and support, refer to the module’s XDA thread (https://xdaforums.com/t/tools-zips-scripts-osm0sis-odds-and-ends-multiple-).

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