The Classification, Design and Placement of Security Sensor for Network Security Situational Awareness System

Network security situational awareness system (NSSAS) is one of the hotspots in information security domain. In order to solve the problem of NSSAS security situation information acquisition, it is highly necessary to study security sensors. On the basis of knowing the information requirement of NSSAS, we put forward a kind of classification method of security sensors, design a general architecture of security sensor, point out some key technologies related to implementing security sensors, give some placement policies, and discuss the management architecture and methods of security sensors finally.