Certificate renewal in a certificate authority infrastructure

H - Electricity – 04 – L

Patent

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H04L 9/32 (2006.01) G06F 21/00 (2006.01)

Patent

CA 2502480

A system using digital certificates having overlapping validity intervals. The overlapping certificates can be used in a hierarchical certificate authorities network in order to obtain benefits such as to increase the usage of all the certificates in the certificate chain; reduce/eliminate the certificate updates/downloads to a large population; only replace the minimum number of certificates in the trust hierarchy to reestablish the certificate chain; reduce the complexity of maintaining certificate nesting in certificate generation process; reduce the risk of service interruption; and control the extent of older technology in circulation and to reduce the risk associated with older products being more susceptible to attack. The certificate renewal process of a preferred embodiment is described.

L'invention concerne un système utilisant des certificats numériques qui présentent des intervalles de validité se chevauchant. Ces certificats se chevauchant peuvent être utilisés dans un réseau d'autorités de certification hiérarchique, en vue d'obtenir des bénéfices, tels que l'augmentation de l'utilisation de tous les certificats dans une chaîne de certificats, la diminution/élimination des mises à jour/téléchargements de certificats destinés à une large partie de la population, le remplacement unique du nombre minimal de certificats dans la hiérarchie fiable pour rétablir la chaîne de certificats, la diminution de la complexité du maintien de l'imbrication des certificats dans un processus de génération de certificats, la baisse du risque d'interruption de service, et la commande de l'étendue de l'ancienne technologie en circulation, et la réduction du risque lié aux vieux produits plus susceptibles d'être attaqués. Cette invention a aussi trait à un processus de renouvellement de certificats d'un mode de réalisation préféré. ? ¿

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