Design And Implementation Of Android Privacy Protecting Software

With the rapid development of smart phone technology, the mobile Internet has deeply influenced all aspects of our life. People are facing the increasingly serious privacy leak problem, while they are enjoying the convenience of mobile Internet. Smartphone users urgently need a kind of smart phone privacy protecting software to protect their privacy in their smart phone. So this thesis is aimed to design and implement Android privacy protecting software.First, this thesis introduces the background of this issue and summarizes the introduction of Android System, Android security overview and Android binder interprocess communication mechanism.Then this thesis makes the functional and non-functional requirements analysis with use cases diagram and timing diagram and concludes all features that should implement according to the characteristics of mobile software. In genaral design, this thesis divides the software into two parts:the module of Android application and the module in the Linux layer and makes a brief introduction of each sub-module. In addition, this thesis makes a detailed introduction about the specific design and implementation of each module combined with sequent diagram, classes diagram and database table design. Moreover, the thesis makes a test and shows the result. At last, the thesis summarizes the achievement of this issue and some aspects that need to be further improved.The innovation of Android privacy protecting software designed and implemented in this thesis is the active defense technology based on Binder which can protect the APIs to call the primary service. Furthermore, this software has been implemented and has applied a national patent while the software based on this model has been implemented which has been released in the public market.