Design And Implementation Of Android Application Based On Privacy Protection

At present,there exists a last mile problem in the domestic logistics industry.The wide distribution of consignee and the small number of couriers directly result in the huge cost of logistics.Considering that there are huge number of smart phone users in China and the proportion of people who use Android system is as large as 70%,the thesis is to design and implement a mobile application based on the Android platform.Everyone may be a "courier" to solve that last mile problem.However,the security of Android system is insufficient,which will cause the leakage of users privacy information.Therefore,aiming at the problem of last mile and Android system security,the following works are carried out in this thesis.(1)For the last mile problem,after investigating current mode of express delivery and development mode of APP(Application).this thesis designs a set of delivery business logic and implement an APP.The APP solves the last mile problem by allowing everyone to become a courier.(2)For the problem of users privacy leakage in Android system,this thesis analyzes the business logic of APP,and concludes three kinds of privacy leakages,including users location privacy information,users mobile phone number information,and personal information.For the first one.this thesis compares and analyzes three common technologies,including location cloaking algorithm based on regional characteristics,privacy protection algorithm based on interface,and K-anonymous.We choose the privacy protection algorithm based on interface which is more suitable for Android system development and make improvement.For the second one,we select the virtual middle number technology.For the last one,after comparing LSB(Least Significant Bits)algorithm and DCT(Discrete Fourier Transform)algorithm,we select LSB which is more suitable for Android system development to sovle the leakage of personal information.These three privacy protection technologies selected above are respectively used to locate,contact customers and upload pictures.We develop and test the APP.All functions of the APP are successfully implemented.The APP can also be compatible with the market mainstream Android system.At the same time,we build a server to ensure the operation of the APP.After the promotion in the campus.we establish a database which contains 351 users,3036 pieces of task data,more than 100,000 pieces of location information data,and achieve a good promotion result.In conclusion,the APP,which integrates privacy protection technolog,can protect users privacy more effectively.