H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 9/12 (2006.01) H04L 9/08 (2006.01)
Patent
CA 2196816
A circuit for, and method of, generating a cryptographic key at a communications node. The circuit includes: (1) communications circuitry for communicating a first seed during a first communications session and communicating a second seed during a second communications session temporally separated from the first communications session and (2) processor circuitry for creating the cryptographic key from the first and second seeds, the communicating of the first and second seeds occurring during the temporally-separated first and second communications sessions, respectively, thereby to enhance a privacy of the cryptographic key.
L'invention est un circuit et une méthode de génération de clés cryptographiques à un noeud de communications. Le circuit comprend: 1) des circuits de communications servant à transmettre un premier germe durant une première séance de communication et un second germe durant une seconde séance de communication séparée temporellement de la première, et 2) un processeur servant à créer une clé cryptographique à partir du premier et du second germes, les transmissions du premier et du second germes étant effectuées respectivement durant la première et la seconde séances de communication séparées temporellement, ce qui accroît la protection de la clé cryptographique.
Kirby Eades Gale Baker
Lucent Technologies Inc.
LandOfFree
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