A Practice Project: APK Installation Package Encryption Tool

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Ever since I was introduced to iApp, I have deeply fallen in love with Android development. I always like writing small software to satisfy my vanity. Recently, I learned about a technique called reverse engineering and cracking, 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 is not absolutely impossible to reverse-engineer).

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

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