Dynamic management method and device of security mechanism

The invention discloses a dynamic management method and device of a security mechanism. The method includes the steps of extracting subject attributes and object attributes of an access data stream; according to a preset ternary relationship and the subject attributes and object attributes of the access data stream, determining security mechanism components required by the access data stream, wherein the ternary relationship is a relationship among the subject attributes, the object attributes and security mechanism attributes; recombining the determined security mechanism components to generate a security protection system. In this way, the dynamic protection of internet services is achieved, accordingly the internet services and the security protection mechanism of an internet-based information system are more targeted, and the security protection capability of the internet services or the internet-based information system is also improved.