Based On The Android Platform, Signature Scanning Protection And Access Control Software Design And Implementation

Andorid platform is becoming more and more popular.It can be found everywhere from smart phones, tablet computers, automotive systems to smart TVs.But Android security becomes more and more insufficient because of the nature of open source and the differentiation of kinds of Android platform. The system is similar with the windows PC on the market,Because of the large number of users and the large interest of the market, more and more malicious software appeared on the Android platform,These virus ues a variety of means to destroy the system,so the difficulty of killing become more and more larger, if only rely on the Android operating system’s own security mechanisms,the benefit of users will completely be controled by the malicious software.This thesis is to analyze the security of the Android platform,Through research Android platform security mechanism,explore the inadequacy of such security mechanisms,and design and implementation for such a lack of Android security software, the security system’s native Android will be enhanced.Those are mainly related to technologys:signature scanning, access control and network firewall technology.With this security software, you can achieve some functions like virus scanning, more fine-grained permissions control and network firewall, so that the Android system’s security which runs the software can be strengthened.The basic idea of the signature scan technique is processing kinds of virus types and samples which have been known.and extracting the type of virus signatures which can stand for the virus uniquely.The effects of killing virus for this technology lies in the design of the virus database, related to the quantity and quality of the sample.The basic idea of access control is that when an application does sensitive operation, the operating system needs to apply for permission to the developer, while at the operating system level privileges to check whether the statement in the manifest file. Then the application layer in the system runtime service calls using the API system, where you can Hook, users will turn to the use of API hooks, and then will be released in accordance with the principles of user privileges, the appropriate treatment.The netfilter in linux kernel space and iptables compoent in linux user space will be used to the Network Firewll.Due to the netfilter kernel space mechanisms is enough, while iptables firewall rules have been perfect, we just need to design an Android-based Iptables reception by running the script, you can call the iptables firewall rules set up to achieve control network firewall functions.