Abstract
Complex event processing (CEP) technology is a study focus in the data flow processing area, while privacy security protection is the key problem that needs to be solved. In order to prevent illegal users from acquiring any information via registered event patterns, this paper discusses the CEP privacy security access control object in depth, formally defines four types of event attribute operators including completely read, partially read, access denied and quantity statistics, presents a privacy security protection engine with the event attribute detecting tree as the operating mechanism and puts forward a new feasible CEP privacy security access control framework based on this. The experimental result shows that such framework is able to realize efficient privacy information filtration based on the user role to reach the goal of CEP detecting information processing in a safe manner.