| With the rapid development of mobile Internet and information explosion era, smartphone has become increasingly popular, and intelligent wearable devices also gradually entered people’s life, such as smart glasses, smart watches, etc. There are some representative companies, for example, Google, Apple, SONY, Samsung, LG, etc. SmartWatch2 is the second generation of smart watch. SmartWatch 2 communicates with smartphone via Bluetooth. It allows the user to operate smartphone through SmartWatch2. It greatly enriches the traditional values of the watch.With the growing popularity of the smartphone, the load of users’ privacy information is more and more. If a smartphone is lost or being attacked by a hostile attack leads to leak privacy data. That would be likely to cause irreparable damage. With the enhancement of personal information protection consciousness, smartphone information protection is gradually valued. However, due to the openness of the Android operating system, making it easier be attacked. In this paper, we will propose a unique technology to protect the information of Android smartphone. That is the user sends important information to the smart watch, and the user gets it from the smart watch. By developing SmartWatch2 smart extension application, Smartphone and smart watch can achieve information transmission. In order to guarantee the security of the smartphone information storage, the key programs are stored in the APK file. When the user sends and receives phone messages, perform encryption program using the dynamic loading technology. It not only ensures the safety of smartphone information and ensures the safety of the key algorithms.This paper takes SONY SmartWatch2 as the research object, through developing SmartWatch2 smart extension application and hiding key procedures in APK file. The scheme guarantees the smartphone information security. It also has important application prospect and ensures the user’s fashionable element and operation convenience. |
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