Generation method and device of tamper-proofing APK, installation and operation method and device thereof

Abstract

The invention discloses a generation method and device of tamper-proofing APK, installation and operation method and device thereof, and belongs to the security technical field of mobile terminal application. The generation method of the tamper-proofing APK comprises: decompressing the original APK and acquiring the cyclic redundancy check code (CRC) of designated APK document after decompression; processing the cyclic redundancy check code (CRC) as the setting mode and getting a check value; writing the check value to the check file and determining the save path of the check file; and integrating the original APK and the check file to generate the target APK. The scheme provided utilizes the tamper-proofing to APK based on the cyclic redundancy check code (CRC) of designated APK document of the original APK, provides a new way for protecting tamper-proofing APK, improves the security of APK installation application for end-users.

Description

technical field [0001] The present invention relates to the technical field of mobile terminal application security, in particular to a method and device for generating an anti-tamper APK, and an installation and operation method and device. Background technique [0002] With the rapid development of Internet communication technology, various mobile terminal devices have become an indispensable tool for people's life, and terminal application programs APP with various functions have also emerged in an endless stream, bringing users a more convenient experience. [0003] APK (Android Package) is the Android installation package, which is an application installation file format on the Android operating system. Since the Android platform is developed using the Java language, the code in the APK is easy to be decompiled. By decompiling the APK file, the code is analyzed, modified or inserted, and then re-signed and packaged as a new APK file to change the original behavior of th...

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Problems solved by technology

[0004] At present, for the anti-tampering protection of APK, it is mostly to modify the dex file to increase the difficulty of attack, such as encrypting part or the whole dex file, or transforming the bytecode of the dex file to realize the reinforcement of APK, but These methods require modification and recompilation of the APK code, increasing the workload of technicians, and when the APK file is running in the memory, there is still the risk of dumping from the memory to the complete dex file

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