Trusted cryptographic processor

H - Electricity – 04 – L

Patent

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Details

H04L 9/00 (2006.01)

Patent

CA 2614377

A cryptographic processor for redundantly-processing cryptographic operations is disclosed. The cryptographic processor includes a number of input ports, a first and second cryptographic engines, comparison logic and a plurality of output ports. The number of input ports is configured to accept both plaintext and ciphertext. Each of the number of input ports is coupled to both the first and second cryptographic engines. The comparison logic is configured to determine if the first and second cryptographic engines produce a result that is different. The number of output ports is configured to produce both plaintext and ciphertext.

L'invention concerne un processeur cryptographique destiné à des opérations cryptographiques à traitement redondant. Le processeur cryptographique comprend un certain nombre de ports d'entrée, un premier et un second moteur cryptographique, une logique de comparaison et plusieurs ports de sortie. Le nombre de ports d'entrée est conçu de manière à accepter à la fois les textes en clair et les textes chiffrés. Chacun des ports d'entrée est couplé à la fois au premier et au second moteur cryptographique. La logique de comparaison est conçue de manière à déterminer si les premier et second moteurs cryptographiques produisent un résultat différent. Le nombre de ports de sortie est conçu de manière à produire à la fois des textes en clair et des textes chiffrés.

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