Abstract:

Most research of Android software protection focuses on how to protect the Dalvik bytecode program. However, the security of native program has not been paid enough attention. In order to prevent possible attacks for Android native program, a protecting method was proposed. By inserting multiple redundant data and integrity check code into the source code, the native program will have abilities to resist dynamic tampering. It also can resist disassembling attack by combining with code encryption technology. Experiment shows that this method can protect the Android native program effectively when attacker tries to crack it by dynamically altering program code or disassembling the program.

Key words: Android, software protection, integrity verification, code encryption, native program