Apparatus and method to prevent man in the middle attack

Details Apparatus and method to prevent man in the middle attack Apparatus and method to prevent man in the middle attack

H - Electricity

04

L

H04L 9/32 (2006.01) H04L 9/14 (2006.01)

Patent

CA 2723747

A system, peripheral device, and method for authenticating an encryption key before transmitting encrypted messages containing sensitive information are provided. Authentication of a client device during the coordination of data transfer among multiple computer devices is possible by providing a peripheral device that does not have a direct connection to a network, but rather, any message to be transmitted over the network must be relayed through a client device. Any sensitive information to be transferred to a remote device is in-serted into a message, then the message is encrypted in the peripheral device. This prevents any process running on the client device from fooling the client device into communicating confidential information to a third party rather than the desired remote computer, because the client device never sees the sensitive information in an unencrypted form; only the peripheral device has access to the sensitive information in an unencrypted form.

L'invention porte sur un système, un dispositif périphérique et un procédé d'authentification d'une clé de chiffrage avant la transmission de messages chiffrés contenant des informations sensibles. L'authentification d'un dispositif client pendant la coordination du transfert de données entre plusieurs dispositifs informatiques est possible par l'utilisation d'un dispositif périphérique sans connexion directe avec un réseau; par conséquent, tout message devant être transmis sur le réseau soit être relayé par un dispositif client. Toute information sensible devant être transférée à un dispositif éloigné est insérée dans un message, puis le message est chiffré dans le dispositif périphérique. Cela empêche tout processus tournant sur le dispositif client de tromper le dispositif client en communiquant des informations confidentielles à un tiers plutôt qu'à l'ordinateur éloigné désiré, car le dispositif client ne voit jamais les informations sensibles non chiffrées, seul le dispositif périphérique ayant accès aux informations sensibles non chiffrées.

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