Research And Application Of Social Context Access Control Technology

With the rapid development of mobile Internet technology,online social networks have gained rapid popularity,and our life,work and study are inseparable from online social networks.While enjoying massive information and online social interaction without time and space restrictions,it also faces many network security problems.Currently,access control technology is used to protect the security of cyberspace.However,for the current dynamic and highly interactive online social network,traditional access control can no longer adapt to and meet the needs of current new scenarios.Therefore,it is the key to propose a new access control model to solve the current online social network security problems.Aiming at the security problems in the dynamic online social network environment,the main research contents and innovations are as follows:1.Constructing online social access control model based on social situation(SSAC).Firstly,the online social access control model(SSAC)based on social context is constructed,and the social situation theory is introduced into the control model,and the model is formally described.Then the access policy of the model is defined,and the general rules and special rules of the model are described.Finally,a comparative analysis of the model shows that the SSAC model is more flexible and can meet the new demand for access control in the current dynamic online social network.2.Fake information dissemination control based on SSAC model.In view of the spread control of fake information in the current hot scene,this study proposes an access control scheme for the spread control of fake information based on the SSAC model Based on the historical behavior of users,the scheme can analyze the behavior sequence,predict whether users have the intention of spreading fake information,and control users according to the application security access policy in the scheme.3.Implementation and application of fake information Dissemination control prototype system.The SSAC model based access control of fake information dissemination is realized in the online social networking platform Cy VOD.The prototype system verifies the usability and security of the model.Cyberspace security in online social networks is the key to building a harmonious and secure Internet environment.In view of the dynamic and interactive characteristics of online social networks,this topic introduces social context theory into the access control model and proposes a new type of online social access.control model.At the same time,aiming at the new hot scene of disinformation dissemination control,a disinformation dissemination control scheme is proposed based on the SSAC model.This subject effectively solves the current cyberspace security problem and realizes more fine-grained and effective access control.