Research On Finding Lost Phones And On Its Relative Information Security

Smartphones have become indispensable tools in people’s life.Losing cell phones not only causes the economic losses,but also discloses personal information.Therefore,researches should be carried out on finding lost cell phones back and the information security technology whose practicality and security needs to be improved.Developers of smartphones and applications have sought solutions from multiple perspectives,applying a variety of methods to help mobile phone users find the lost cell phones or protect their information in the mobile phones.But few researchers in this field analyze the drawbacks of these solutions comprehensively or put forward solutions,leading to a phenomenon that though there are many existing finding phones and information protection applications,a great number of smartphone users still have no effective means to find their own mobile phones back,let alone protecting security of the important data stored in their cell phones.In this paper,based on basic technology of finding mobile phones back,the author has a comprehensive understanding of the users’ habits,tries to explore various scenarios after cell phones are lost,and extracts the users of mobile phones’ core requirements of finding back function.In the process of research and development of this technology,the structure of the Android platform is introduced first,on which the feasibility of retrieving the cell phones as well as their components is analyzed and verified.Then,the information security state is divided into five states,such as non-perception,physical control transfer,communication isolation,data tampering and hardware separation,by combining the various states of the lost phones.According to the five states,the author designs,summarizes and extracts a series of information protecting methods applied in various scenarios of finding lost cell phones back and puts forward about different improvement and part of the solutions in both information and hardware protection.By comparing and analyzing all kinds of smart phone information security technology,the author finds that there is great space to progress in the field of identification technology.Moreover,the function module of smart phones to authenticate users is the key part of the application to guarantee the security of the mobile phone,and there is a common connection between the technology of the retrieval function of the mobile phones.Therefore,combined with biological recognition technology,the author has designed,implemented and verified the validation of mobile intelligent identification method based on the relatively mature design validation technologies,in order to enhance the security of smart phones.Finally,the identification rate of the counterfeiters is 100%,and 94.8% identification of the user’s identity is correct.