Secure mobile ad-hoc network and related methods

Details Secure mobile ad-hoc network and related methods Secure mobile ad-hoc network and related methods

H - Electricity

04

L

H04L 9/00 (2006.01) H04L 9/08 (2006.01) H04L 9/18 (2006.01) H04L 12/28 (2006.01) H04L 12/56 (2006.01) H04L 29/06 (2006.01)

Patent

CA 2483879

A mobile ad-hoc network (10) may include a plurality of nodes including a source node (11a) and at least one adjacent node (11b). The source node (11a) may include a wireless communications device for establishing a wireless communication link with the at least one adjacent node (11b), a plain text source (24), and a second generator (20) for performing a one-way algorithm using a secret key for generating a seed. Furthermore, the source node (11a) may also include a key encryptor (22) for receiving the seed and generating a key sequence based thereon, and a logic circuit for generating a cipher text for transmission over the wireless communications link and based upon the key sequence and the plain text.

L'invention concerne un réseau ad hoc mobile (10) pouvant comprendre une pluralité de noeuds, dont un noeud source (11a) et au moins un noeud adjacent (11b). Le noeud source (11a) peut comprendre un dispositif de communication sans fil destiné à établir une liaison de communication sans fil avec le noeud adjacent (11b), une source de texte en clair (24) et un générateur de valeur de départ (20) servant à exécuter un algorithme unidirectionnel utilisant une clé secrète pour générer une valeur de départ. En outre, le noeud source (11a) peut également comprendre un crypteur de clé (22) destiné à recevoir la valeur de départ et à générer une séquence de clé sur la base de celle-ci, ainsi qu'un circuit logique permettant de générer un cryptogramme en vue d'une transmission sur la liaison de communication sans fil et sur la base de la séquence de clé et du texte en clair.

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