METHOD, SYSTEM AND APPARATUS FOR ESTABLISHING END-TO-END SECURITY CONNECTION

摘要

Disclosed are a method, a system and an apparatus for establishing an end-to-end security connection. The method includes the following steps: 1) a sending source node NSource sends a key request packet to a center switch equipment SWCenter; 2) after receiving the key request packet, the center switch equipment SWCenter constructs a key announcement packet and sends it to a destination node NDestination; 3) after receiving the key announcement packet, the destination node NDestination obtains the KEYS-D, constructs a key announcement response packet and sends it to the center switch equipment SWCenter; 4) after receiving the key announcement response packet, the center switch equipment SWCenter constructs a key response packet and sends it to the sending source node NSource; 5) the sending source node NSource receives the key response packet, obtains the KEYS-D, and establishes an end-to-end security connection. The method can flexibly establish and update keys between legal nodes in a local area network.