METHOD, SYSTEM, AND APPARATUS FOR ESTABLISHING END-TO-END SHARED KEY

摘要

Disclosed are a method, a system, and an apparatus for establishing end-to-end shared keys. The method includes the following steps: 1) a sending source node sends a first key negotiation request packet to a core switch device; 2) after receiving the first key negotiation request packet, the core switch device constructs a second key negotiation request packet for a destination node; 3) after receiving the second key negotiation request packet, the destination node computes and obtains the shared key between the destination node and the sending source node, and constructs a second key negotiation response packet for the core switch device; 4) after receiving the second key negotiation response packet, the core switch device constructs a first key negotiation response packet for the sending source node; 5) after receiving the first key negotiation response packet, the sending source node computes and obtains the shared key between the sending source node and the destination node. The method can flexibly establish and update keys between legal nodes in a local area network.