MUTUAL AUTHENTICATION AND SESSION KEY EXCHANGE SCHEME BETWEEN THE MOBILE NODES USING HIERARCHICAL DOMAIN KEY IN THE AD HOC NETWORK OF INFRASTRUCTURE BASE

摘要

PURPOSE: A method for mutually authenticating between mobile nodes in an infrastructure based ad hoc network environment applying a hierarchical domain key and a method for distributing a secession key are provided to reduce a message overhead and a delay time due to authentication and a session key exchange by sharing the session key through the minimum message exchange. CONSTITUTION: An access router(101) generates a hierarchical local key and distributes the hierarchical local key to a corresponding wireless AP(111). A mobile node performs an initial authentication process for a network access. The mobile node receives key information which generates the hierarchical local key from the access router. The mobile node creates the key. The mutual authentication and session key are shared between the mobile nodes which belong to the same wireless AP domain.