Securing a link between devices

Details Securing a link between devices Securing a link between devices

H - Electricity

04

L

H04L 9/14 (2006.01)

Patent

CA 2539658

A cryptographic key is used to secure a communication link between a first device and a second device. Generating the cryptographic key is accomplished by a) generating a first cryptographic key, b) generating a second cryptographic key that differs from said first cryptographic key, c) hashing packets communicated between said first device and said second device over said communication link to create a hash result, and d) hashing said first cryptographic key, said second cryptographic key and said hash result to generate a third cryptographic key to be used to secure said communication link.

Une clé cryptographique est utilisée pour sécuriser une liaison de données entre un premier dispositif et un second dispositif. La clé cryptographique est créée a) en générant une première clé cryptographique, b) en générant une seconde clé cryptographique qui diffère de la première clé cryptographique, c) en hachant les paquets transmis entre le premier dispositif et le second dispositif de ladite liaison de données pour créer un résultat haché, et d) en hachant la première clé cryptographique, la seconde clé cryptographique et le résultat haché afin de générer une troisième clé cryptographique utilisée pour sécuriser ladite liaison de données.

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