System and method for secure transactions over a network

Details System and method for secure transactions over a network System and method for secure transactions over a network

H - Electricity

04

L

H04L 12/56 (2006.01) G06F 11/14 (2006.01) H04L 12/46 (2006.01) H04L 29/06 (2006.01) G06F 17/60 (2000.01)

Patent

CA 2380877

The public Internet is the world's largest system of inter-net- worked computers. Adequate security means for protecting sensitive data com- municated over the Internet is not, however, provided. The present invention, therefore, provides a system and method for performing secure transactions over an insecure packet-switched communication network. This is achieved by inter- connecting a number of master nodes over the insecure communication network. The master nodes are capable of transmitting encrypted data packets over the in- secure network via pseudo-random communication paths. The master nodes are further capable of returning to any state in a secure transaction in the event of a network failure. The master nodes are also capable of using new keys to encrypt each data packet.

L'Internet public est le plus grand système mondial d'ordinateurs interconnectés. Cependant, il n'existe pas de dispositif de sécurité adéquat pour protéger les données sensibles communiquées sur Internet. La présente invention concerne un système et un procédé servant à effectuer des transactions sécurisées sur un réseau de communication à commutation de paquets non sécurisé. A cet effet, un certain nombre de noeuds principaux sont interconnectés sur le réseau de communication non sécurisé. Les noeuds principaux sont capables de transmettre des paquets de données chiffrées sur le réseau non sécurisé, par l'intermédiaire de chemins de communication pseudo-aléatoires. Les noeuds principaux sont en outre capables de revenir à n'importe quel état d'une transaction sécurisée en cas de panne de réseau. Les noeuds principaux sont aussi capables d'utiliser de nouvelles clés pour chiffrer chaque paquet de données.

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