The Design And Implementation Of Security Defense System Based On Android

With the rapid development of mobile Internet technology and the popularity of smart phones,our lifestyle is changed.Android system has occupied large market share and attracts a large number of software developer,because of its powerful function and easier to develop characteristics.The number of applications in the Android app market is also growing.But a large numbers of Android applications are filled with much virus software,they are always threatening the safety of our Android system phones.Because of the open source characteristics of Android platform,hackers are relatively easy to find and crack its bugs,so the Android system has become the priority target for hackers to attack.Therefore,it is very meaningful to design the security system of Android phones.This paper does research into the principle and method of the design and implementation of security defense system based on Android.It briefly introduces the related theory and technology of Android system architecture,Android system security mechanism,the format and content of MQTT protocol,Zip4 j framework content,Django framework content.The system uses the MQTT protocol to transmit the geographic information through the network,which enhances the security of the anti-theft function of telephones and provides the guarantee for users.This system not only refers to the experience from the traditional Android security defense system,but also uses some new technologies.The unlock way of the App lock uses the current more mature and popular fingerprint recognition technology.It is convenient for users to use App lock function.Privacy file encryption function is the security of the user's privacy file as the first element of consideration,specially designed AES/256 encryption algorithms that is difficult to crack by violence to decrypt the encryption files.This design provides users with a higher level of security protection.What's more,this encryption has an advantage of cross-platform.So we can decrypt the encrypted privacy files on PC.The Design and Implementation of Security defense system based on Android mainly implements the functions of process management,harassment interception,traffic monitoring,scanning antivirus,mobile phone security,program lock,privacy file encryption,cache cleanup and software management et al.Then,we deploy this system to the Android phones and test the performance of each function.The test result show that this system has significant effectiveness to solve the issues which the lack of Android system memory,the Anti-Theft of Smart phones,the protection of users' applications for trading and privacy files.What's more,the security performance of Android phones has also been an effective upgrade.