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Baidu Tech Salon
Baidu Tech Salon
Jul 4, 2023 · Information Security

Implementation and Practice of DEX‑VMP Code Protection for Android Applications

The article details how Android developers can protect APK dex files by progressively hardening code—using dynamic loading, hooking, instruction extraction, java‑to‑C++ conversion, and ultimately DEX‑VMP virtual machine encryption—while outlining implementation steps, custom opcodes, JNI integration, and addressing compatibility and performance trade‑offs.

AndroidDexVMP
0 likes · 17 min read
Implementation and Practice of DEX‑VMP Code Protection for Android Applications
Baidu Geek Talk
Baidu Geek Talk
Jun 28, 2023 · Information Security

DEX‑VMP Based Android Code Protection: Design, Implementation, and Analysis

The paper presents a DEX‑VMP scheme that encrypts Dalvik bytecode and executes it via a custom virtual machine and JNI bridge, merging the strengths of dynamic loading, hooking, instruction extraction, and java‑to‑C++ conversion while highlighting compatibility issues, performance overhead, and the need for selective protection of high‑value Android methods.

AndroidDexJNI
0 likes · 17 min read
DEX‑VMP Based Android Code Protection: Design, Implementation, and Analysis