Application level security system and method

Details Application level security system and method Application level security system and method

H - Electricity

04

L

H04L 9/32 (2006.01) G06K 19/00 (2006.01) G07F 7/10 (2006.01) H04L 9/08 (2006.01) H04L 12/22 (2006.01)

Patent

CA 2241052

A system and method for establishing secured communications pathways across an open unsecured network, without compromising the security of any parties to the communication, involves establishing secured gateways or firewalls between the Internet and any party which desires protection by 1.) using a smart card to distribute shared secret keys between a computer which serves as the above-mentioned firewall and a client node on the Internet; 2.) using the shared private keys to establish mutual authentication between the gateway and the smart card; 3.) generating a session or temporary secret key for use in further communications between the gateway and the client node once communications have been established; and 4.) encrypting further communications using the session key.

Un système et un procédé permettant d'établir des voies de communication sécurisées dans un réseau ouvert non sécurisé, sans compromettre la sécurité de toutes les parties à la communication, font appel à l'établissement de passerelles ou de pare-feu sécurisés entre Internet et toute partie désirant une protection. Pour ce faire: 1) on utilise une carte à puce pour distribuer les clés secrètes partagées entre un ordinateur qui sert de pare-feu susmentionné et un noeud client sur Internet; 2) on utilise les clés privées partagées pour procéder à une authentification mutuelle entre la passerelle et la carte à puce; 3) on génère une clé secrète de session ou temporaire, destinée à être utilisée pour des communications ultérieures entre la passerelle et le noeud client une fois que les communications ont été établies; 4) on crypte les communications suivantes à l'aide de la clé de session.

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