The Research Of The Android Application Software Protection

In recent years, with the increasing prosperity of mobile Internet, the number of mobile application software is increasing rapidly. Android platform become one of the largest mobile applications, and the largest number of users. At the same time, the faced security threat become increasingly serious. Application software is easy to be broken and tampered with, and implanted advertising and malicious code, and spread wanton through a variety of third party channels. Which seriously damaged the interests of Internet companies and the vast number of users. Research on security protection of mobile application software has great practical significance.In view of the importance of Android platform application software security, the security mechanism of Android operating system and the threat of application software are analyzed. And the emphasis of this paper is to discuss and analysis the existing Android application software protection technology, including source code protection technique, anti tampering techniques, shell technology, the document hideaway technology, anti debugging techniques, anti simulator technology.Combined with various protection technologies, a comprehensive protection scheme is designed. Among them, the anti simulator technology is relatively weak, but it is very important. Therefore, this paper will focus on the anti simulator technology as a research focus.In the anti simulator technology, we described and analyzed the existing anti simulation technology and the simulator hiding technology. Do the experiments of offensive and defensive combat between the anti simulator technology and the simulator's hidden. Based on the analysis of the experimental results, this paper proposes an anomaly detection technique by the fluctuation of the signal. This technology uses the idea of anomaly detection, combined with the characteristics of Android platform, to realize the detection of the simulator. The anomaly detection technology based on the fluctuation signal is of high accuracy, good expansibility, and is strong practical application.