METHOD AND DEVICE FOR ESTABLISHING SECURITY ASSOCIATIONS BETWEEN NODES OF A WIRELESS SELF-ORGANIZING SINGLE-PEOPLE (AD-HOC) NETWORK

摘要

1. A method for establishing security associations with one or more nodes of a wireless self-organizing ad hoc network, comprising the steps of! Perform the initial authentication of the node, and at this stage! pass the association request from the node to the authenticator node,! the association response is transmitted from the authenticator node to the node, the association response includes a security association information element, the security association information element including a key distributor address identifying a key distributor with which the authentication node has a pre-existing security association,! authenticate between the node, the authenticator node, the key distributor and the authentication server,! associate the node with the authenticator node by performing a four-step handshake between the authenticator node and the node; and! setting up a key holder security association between the node and the key distributor by transmitting the key holder security association message from the node to the key distributor based on the address of the distributor; and! perform abbreviated authentication, and at this point! authenticate node with authenticator node! exchange key delivery between the authenticator node and the key distributor, and! associate the node with the authenticator node by performing an abbreviated handshake between the authenticator node and the node. ! 2. A wireless self-organizing ad hoc network containing! authentication server ! a key distributor node, connected with the possibility of communicating with