METHOD FOR SECURING EXCHANGES BETWEEN A REQUESTOR NODE AND A RECEIVING NODE, SAID NODES BELONGING TO A COMMUNICATION NETWORK.

摘要

The invention relates to a method for securing exchanges between a requesting node (N4) and a destination node (N1), said nodes belonging to a communication network (2). The method comprises the following steps implemented by a security server (Serv): a step of receiving a request sent by the requesting node for access to the destination node; a step of sending a response to the request, said response comprising an authentication proof intended for the destination node and a session key, intended to be used for exchanges between the requesting and receiving nodes, characterized in that , at least one secret, to share with at least one requesting node, separate from the session key, being associated with the destination node, the response further comprises said secret. The secret is then used by the requesting node to authenticate intermediate nodes (N3) enabling it to join the destination node.