Design And Implement Personal Portrait Privacy Protection System For Social Network

With the universal coverage of mobile network,popularization of the social network and intelligent development of mobile devices,images fast sharing has been an important way to spread information on the internet.The photos that users take and share to social platform can rapidly spread over the world by Internet.The promptness and openness of network transmission,however,can cause sensitive and privacy information leak and do harm to users.There are three ways to protect portrait privacy.Firstly,the devices are able to directly process the photos when taking.Secondly,user is able to overlap the pictures before sharing.Thirdly,platform can do the analysis and edits the images when receiving.This thesis aims to achieve from the point of view of system.The system can be used in social network,and provide a solution for portrait privacy protection in mobile social network.This method not only can reduce the cost of hardware for privacy protection,but also can avoid the troubles of manual configuration.What is more important,it provides a unified platform for privacy protection.According to the theories of software engineering,this thesis designs and implements the portrait privacy protection system,using PHP,MySQL,Redis,Face++,and iOS programming technology.In this thesis,the system's requirements are analyzed in terms of application scenario,overall system requirement and detail function requirements.Secondly,the design of the system's overall framework,server architecture,client schema and data storage are introduced.Thirdly,several key issues are discussed,such as the encryption transmission of image when users upload or download,user authentication,face detecting,face identification,portrait privacy protection and so on.Meanwhile,we provide the iOS client presentation.The portrait privacy protection system can provide privacy data processing,and ensure the safety of information transfer.