A Practice Project: An Android APK Installation Package Obfuscation and Encryption Tool

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Ever since I was introduced to iApp, I have developed a deep passion for Android development and always enjoy writing small software projects to satisfy my vanity. Recently, I learned about a technique called reverse engineering, which involves obtaining an app's source code through decompilation. I then learned about another technique called hardening or packing, which can prevent an app from being easily reverse-engineered (though it does not make reverse engineering absolutely impossible).

Later, I discovered a piece of software that could directly encrypt APK installation packages, so I downloaded it and removed some unnecessary resources, reducing the entire installation package to only around 40 KB. I am sharing it here for anyone who needs it.

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